0001660280-26-000005 | 10-K | XBRL Viewer

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Acquisitions, Goodwill and Intangible Assets - Schedule of Business Combination, Recognized Asset Acquired and Liability Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Jun. 30, 2025	Feb. 28, 2025	Dec. 31, 2024	Jun. 30, 2024
Business Combination [Line Items]
Goodwill	$ 697,886			$ 541,292
Apex
Business Combination [Line Items]
Intangible assets		$ 6,800
Goodwill		41,288
Accounts receivable		62
Deferred revenue		(34)
Other liabilities, net		(333)
Total purchase price allocation		$ 47,783
Vulcan
Business Combination [Line Items]
Intangible assets			$ 40,000
Goodwill			115,306
Accounts receivable			2,158
Deferred revenue			(7,695)
Other liabilities, net			(1,224)
Total purchase price allocation			$ 148,545
Eureka
Business Combination [Line Items]
Intangible assets					$ 6,900
Goodwill					22,753
Accounts receivable					0
Deferred revenue					(108)
Other liabilities, net					(341)
Total purchase price allocation					$ 29,204

Revenue (Tables)

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Revenue

The following table presents a summary of revenue:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Subscription revenue	$	919,573	$	824,659	$	725,013
Perpetual license and maintenance revenue	44,661		47,774		48,729
Professional services and other revenue	35,171		27,588		24,968
Revenue	$	999,405	$	900,021	$	798,710

Schedule of Future Estimated Revenue Related To Unsatisfied Performance Obligations

The following summarizes the future estimated revenue related to unsatisfied performance obligations:


	December 31,
(in thousands)	2025		2024
Remaining performance obligations, short-term	$	748,616	$	660,647
Remaining performance obligations, long-term	312,449		206,879
Remaining performance obligations	$	1,061,065	$	867,526

Schedule of Activity of Deferred Incremental Costs

The following summarizes the activity of deferred incremental costs of obtaining a contract:


	Year Ended December 31,
(in thousands)	2025		2024
Beginning balance	$	119,705	$	121,953
Capitalization of contract acquisition costs	62,517		52,263
Amortization of deferred contract acquisition costs	(57,593)		(54,511)
Ending balance	$	124,629	$	119,705

Cash Equivalents and Short-Term Investments

12 Months Ended

Dec. 31, 2025

Cash and Cash Equivalents [Abstract]

Cash Equivalents and Short-Term Investments

The following tables summarize the amortized cost, unrealized gain and loss and estimated fair value of cash equivalents and short-term investments:


	December 31, 2025
(in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value
Cash equivalents
Money market funds	$	59,760	$	—	$	—	$	59,760

Total cash equivalents	$	59,760	$	—	$	—	$	59,760

Short-term investments
Commercial paper	$	5,063	$	3	$	—	$	5,066
Corporate bonds	94,729		167		(2)		94,894
Asset backed securities	17,331		33		—		17,364

Yankee bonds	13,280		14		(1)		13,293
U.S. Treasury and agency obligations	83,629		173		—		83,802
Total short-term investments	$	214,032	$	390	$	(3)	$	214,419


	December 31, 2024
(in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value
Cash equivalents
Money market funds	$	190,750	$	—	$	—	$	190,750

Total cash equivalents	$	190,750	$	—	$	—	$	190,750

Short-term investments
Commercial paper	$	41,610	$	—	$	(6)	$	41,604
Corporate bonds	95,267		208		(65)		95,410
Asset backed securities	30,740		63		(7)		30,796


Yankee bonds	13,998		16		(7)		14,007
U.S. Treasury and agency obligations	66,614		155		(39)		66,730
Total short-term investments	$	248,229	$	442	$	(124)	$	248,547

We considered the extent to which any unrealized losses on our short-term investments were driven by credit risk and other factors, including market risk, and if it is more-likely-than-not that we would have to sell the security before the recovery of the amortized cost basis. At December 31, 2025 and 2024, our unrealized losses were due to changes in market interest rates compared to when the investments were initiated. We do not believe any unrealized losses represent credit losses, and it is unlikely we would sell the investments before we would recover their amortized cost basis.

The contractual maturities of our short-term investments are as follows:


	December 31, 2025				December 31, 2024
(in thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due within one year	$	178,677	$	178,995	$	204,156	$	204,532
Due between one and two years	35,355		35,424		44,073		44,015
Total short-term investments	$	214,032	$	214,419	$	248,229	$	248,547

Fair Value Measurements - Schedule of Assets Measured At Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 59,760	$ 190,750
Short-term investments	214,419	248,547
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	5,066	41,604
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	94,894	95,410
Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	17,364	30,796
Yankee bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	13,293	14,007
U.S. Treasury and agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	83,802	66,730
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	59,760	190,750
Short-term investments	0	0
Level 1 \| Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 1 \| Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 1 \| Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 1 \| Yankee bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 1 \| U.S. Treasury and agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Short-term investments	214,419	248,547
Level 2 \| Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	5,066	41,604
Level 2 \| Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	94,894	95,410
Level 2 \| Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	17,364	30,796
Level 2 \| Yankee bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	13,293	14,007
Level 2 \| U.S. Treasury and agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	83,802	66,730
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Short-term investments	0	0
Total other investments	7,702	8,572
Level 3 \| Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 3 \| Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 3 \| Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 3 \| Yankee bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 3 \| U.S. Treasury and agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Level 3 \| Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other investments	6,702	6,701
Level 3 \| Debt and other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other investments	1,000	1,871
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	59,760	190,750
Money market funds \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	59,760	190,750
Money market funds \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Money market funds \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 0	$ 0

Cover Page - USD ($) $ in Billions	12 Months Ended
Cover Page - USD ($) $ in Billions	Dec. 31, 2025	Feb. 20, 2026	Jun. 30, 2025
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2025
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-38600
Entity Registrant Name	TENABLE HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-5580846
Entity Address, Address Line One	6100 Merriweather Drive
Entity Address, City or Town	Columbia
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	21044
City Area Code	410
Local Phone Number	872-0555
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	TENB
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 4.1
Entity Common Stock, Shares Outstanding (in shares)		114,887,618
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant's definitive Proxy Statement relating to the 2026 Annual Meeting of Stockholders are incorporated herein by reference in Part III of this Annual Report on Form 10-K. The Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the year ended December 31, 2025.
Entity Central Index Key	0001660280
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	false

Income Taxes - Schedule Change in Gross Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at the beginning of the period	$ 8,538	$ 8,297	$ 7,820
Additions for tax positions in the current year	151	329	417
Increase in prior year positions	385	0	60
Decrease in prior year positions	(18)	(88)	0
Acquisitions	0	0	0
Unrecognized tax benefits at the end of the period	$ 9,056	$ 8,538	$ 8,297

Business and Summary of Significant Accounting Policies - Deferred Commissions (Details)	Dec. 31, 2025
Subscription revenue \| Minimum
Capitalized Contract Cost [Line Items]
Estimated period of benefit	3 years
Subscription revenue \| Maximum
Capitalized Contract Cost [Line Items]
Estimated period of benefit	4 years
Perpetual license and maintenance revenue
Capitalized Contract Cost [Line Items]
Estimated period of benefit	5 years

Cash Equivalents and Short-Term Investments - Schedule of Contractual Maturities on Short-Term Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Cash and Cash Equivalents [Abstract]
Amortized cost, due within one year	$ 178,677	$ 204,156
Amortized cost, due between one and four years	35,355	44,073
Amortized Cost	214,032	248,229
Estimated fair value, due within one year	178,995	204,532
Estimated fair value, due between one and four years	35,424	44,015
Estimated Fair Value	$ 214,419	$ 248,547

Income Taxes - Schedule of Components of Loss Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
U.S. income (loss)	$ 19,988	$ 25,787	$ (26,249)
Foreign loss	(42,921)	(44,673)	(41,152)
Loss before income taxes	$ (22,933)	$ (18,886)	$ (67,401)

Acquisitions, Goodwill and Intangible Assets - Schedule of Acquisition-Related Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Business Combination [Line Items]
Total acquisition-related expenses	$ 7,256	$ 1,932	$ 9,472
Sales and marketing
Business Combination [Line Items]
Total acquisition-related expenses	1,320	52	512
Research and development
Business Combination [Line Items]
Total acquisition-related expenses	1,778	(20)	2,880
General and administrative
Business Combination [Line Items]
Total acquisition-related expenses	$ 4,158	$ 1,900	$ 6,080

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

Business and Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Collateral For Letters of Credit
Restricted Cash and Cash Equivalent Item [Line Items]
Restricted Cash	$ 8.7	$ 8.2

Acquisitions, Goodwill and Intangible Assets - Schedule of Acquired Intangible Assets Subject to Amortization (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 196,727	$ 149,927
Accumulated Amortization	(81,431)	(55,466)
Net Carrying Amount	115,296	94,461
Acquired technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	196,237	149,437
Accumulated Amortization	(80,941)	(54,976)
Net Carrying Amount	115,296	94,461
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	490	490
Accumulated Amortization	(490)	(490)
Net Carrying Amount	$ 0	$ 0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Property and Equipment, Net

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

Property and Equipment, Net

Property and equipment, net consisted of the following:


	December 31,
(in thousands)	2025		2024
Computer software and equipment	$	21,676	$	21,051
Internally developed software	44,403		39,944
Furniture and fixtures	5,833		5,140
Leasehold improvements	33,049		24,524
Total	104,961		90,659
Less: accumulated depreciation and amortization	(64,899)		(51,394)
Property and equipment, net	$	40,062	$	39,265

Depreciation and amortization related to property and equipment was $16.0 million, $13.7 million and $13.2 million in 2025, 2024 and 2023, respectively.

In 2024, we recorded a $4.5 million impairment for furniture and fixtures and leasehold improvements. See Not e 7 for additional information.

Debt - Additional Information (Details)	1 Months Ended
Debt - Additional Information (Details)	Jul. 31, 2021 USD ($)	Dec. 31, 2025 USD ($)
Line of Credit Facility [Line Items]
Debt Instrument, covenant, leverage ratio, maximum	5.50
Debt Instrument, covenant, leverage ratio, minimum	35.00%
Secured Debt
Line of Credit Facility [Line Items]
Credit Facility, maximum borrowing capacity	$ 375,000,000.0
Basis spread on variable rate	2.75%
Debt instrument, basis spread on variable rate, variable rate floor	0.50%
Annual amortization amount, percent	1.00%
Debt instrument, periodic payment terms, balloon payment to be paid	$ 350,600,000
Long-term debt, fair value		$ 362,700,000
Secured Debt \| Credit Agreement
Line of Credit Facility [Line Items]
Debt Instrument, covenant, leverage ratio, maximum		3.5
Debt instrument, covenant, leverage ratio		0.84
Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit Facility, maximum borrowing capacity	$ 50,000,000.0
Standby letters of credit		$ 200,000
Revolving Credit Facility \| Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.00%
Revolving Credit Facility \| Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.50%
Revolving Credit Facility \| Credit Agreement \| Minimum
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage	0.25%
Revolving Credit Facility \| Credit Agreement \| Maximum
Line of Credit Facility [Line Items]
Unused capacity, commitment fee percentage	0.375%
Letter of Credit
Line of Credit Facility [Line Items]
Credit Facility, maximum borrowing capacity	$ 15,000,000.0

Debt

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Debt

Credit Agreement

In July 2021, we entered into a credit agreement ("Credit Agreement") which is comprised of:

•a $375.0 million senior secured term loan facility ("Term Loan"); and

•a $50.0 million senior secured revolving credit facility ("Revolving Credit Facility").

The table below summarizes the carrying value of the Term Loan:


(in thousands)	December 31, 2025
Term loan	$	360,000
Less: Unamortized debt discount and issuance costs	(3,293)
Term loan, net of issuance costs	356,707
Less: Term loan, net, current (1)	(2,498)
Term loan, net of issuance costs (net of current portion)	$	354,209

_______________

(1) Term loan, net, current is included in other current liabilities on our consolidated balance sheets.

The Term Loan bears interest at a rate of 2.75% per annum over the Secured Overnight Financing Rate ("SOFR"), subject to a 0.50% floor, plus a credit spread adjustment depending on the interest period. The Term Loan is being amortized at 1% per annum in equal quarterly installments until the final payment of $350.6 million on the July 7, 2028 maturity date.

Our Term Loan is recorded at its carrying value. At December 31, 2025, the fair value of our Term Loan was approximately $362.7 million. In the fair value hierarchy, our Term Loan is classified as Level 2 as it is traded in less active markets.

The maturities of our Term Loan at December 31, 2025 were as follows:


(in thousands)
Year ending December 31,
2026	$	3,750
2027	3,750
2028	352,500
Total	$	360,000

We may be subject to mandatory Term Loan prepayments related to the excess cash flow provisions. These prepayments would only be required if our first lien net leverage ratio (as defined in our Credit Agreement) exceeds 3.5 at the end of each year. At December 31, 2025, our first lien net leverage ratio was 0.84.

The Revolving Credit Facility bears interest at a rate, depending on first lien net leverage, ranging from 2.00% to 2.50% over SOFR and matures on July 7, 2026. Additionally, we pay a commitment fee during the term ranging from 0.25% to 0.375% per annum of the average daily undrawn portion of the revolving commitments based on the first lien net leverage ratio. The Revolving Credit Facility contains a $15.0 million letter of credit sublimit.

The Credit Agreement contains certain customary events of default, which include failure to make payments when due, the material inaccuracy of representations or warranties, failure to observe or perform certain covenants, cross-defaults, bankruptcy and insolvency-related events, certain judgments, certain ERISA-related events, failure of any lien created under the Security Documents (as defined in the Credit Agreement) to be valid and perfected (subject to certain exceptions), failure of any material guarantee of the Loan Document Obligations (as defined in the Credit Agreement) to be in full force and effect and a Change of Control (as defined in the Credit Agreement).

The Credit Agreement is guaranteed by the Company, Tenable Public Sector LLC and Accurics, Inc., both indirect subsidiaries of the Company, as guarantors, and is supported by a security interest in substantially all of the assets of Tenable, Inc. and the guarantors.

The Credit Agreement contains certain customary representations and warranties and affirmative and negative covenants, including certain restrictions on incurring additional indebtedness or guaranteeing indebtedness of others, creating liens on properties or assets, making certain investments, loans, advances and guarantees, selling assets, making certain restricted payments and entering into certain sale and leaseback transactions, affiliate transactions, restrictive agreements and asset and stock-based transactions. Additionally, if at least 35% of the Revolving Credit Facility

is drawn on the last day of the quarter, the total net leverage ratio cannot be greater than 5.50 to 1.00. At December 31, 2025, we had $0.2 million of standby letters of credit outstanding under our Revolving Credit Facility related to one of our operating leases. At December 31, 2025, we were in compliance with the covenants under the Credit Agreement.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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+ Details

Revenue

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

Revenue

Disaggregation of Revenue

The following table presents a summary of revenue:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Subscription revenue	$	919,573	$	824,659	$	725,013
Perpetual license and maintenance revenue	44,661		47,774		48,729
Professional services and other revenue	35,171		27,588		24,968
Revenue	$	999,405	$	900,021	$	798,710

Concentrations

We sell and market our products and services through our field sales force that works closely with our channel partners, which includes a network of distributors and resellers, in developing sales opportunities. We use a two-tiered channel model whereby we sell our products and services to our distributors, which in turn sell to resellers, which then sell to end users. Revenue derived through our channel network comprised 94%, 94% and 93% of revenue in 2025, 2024 and 2023, respectively. One of our distributors accounted for 32%, 34% and 36% of revenue in 2025, 2024 and 2023, respectively. That same distributor accounted for 27% and 29% of accounts receivable at December 31, 2025 and 2024, respectively.

Contract Balances

We generally bill our customers in advance and accounts receivable are recorded when we have the right to invoice the customer. Contract liabilities consist of deferred revenue and include customer billings and payments received in advance of performance under the contract. In 2025, 2024 and 2023, we recognized revenue of $650.0 million, $581.8 million and $502.8 million, respectively, that was included in the deferred revenue balance at the beginning of each respective period.

Remaining Performance Obligations

The following summarizes the future estimated revenue related to unsatisfied performance obligations:


	December 31,
(in thousands)	2025		2024
Remaining performance obligations, short-term	$	748,616	$	660,647
Remaining performance obligations, long-term	312,449		206,879
Remaining performance obligations	$	1,061,065	$	867,526

Deferred Commissions

The following summarizes the activity of deferred incremental costs of obtaining a contract:


	Year Ended December 31,
(in thousands)	2025		2024
Beginning balance	$	119,705	$	121,953
Capitalization of contract acquisition costs	62,517		52,263
Amortization of deferred contract acquisition costs	(57,593)		(54,511)
Ending balance	$	124,629	$	119,705

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

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+ Details

Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2025

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

SCHEDULE II

SUPPLEMENTARY CONSOLIDATED FINANCIAL STATEMENT SCHEDULE

VALUATION AND QUALIFYING ACCOUNTS


(in thousands)	Balance at Beginning of Year		Additions Charged to Costs and Expenses		Deductions(1)		Balance at End of Year
Allowance for Doubtful Accounts
Year Ended December 31, 2025	$	525	$	586	$	(455)	$	656
Year Ended December 31, 2024	470		545		(490)		525
Year Ended December 31, 2023	1,400		593		(1,523)		470

_______________

(1) Consists of recoveries and write-offs of uncollectible accounts.

Income Taxes - Additional information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Current tax expense	$ 11,737	$ 16,768	$ 10,643
Income tax expense, BEAT		3,300
Valuation allowance, increase (decrease)	35,100
Tax credits carryforwards	31,700
Unrecognized tax benefits	9,056	8,538	$ 8,297	$ 7,820
Effective tax rate impact	400	200
Israel
Operating Loss Carryforwards [Line Items]
Current tax expense		$ 1,200
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	378,400
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	218,900
Foreign
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 618,700

Revenue - Contract Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue recognized that was included in deferred revenue	$ 650.0	$ 581.8	$ 502.8

Business and Summary of Significant Accounting Policies - Foreign Currency (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Foreign currency transaction loss	$ 1.6	$ 5.0	$ 3.1

Acquisitions, Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	1 Months Ended			12 Months Ended
	Jun. 30, 2025	Feb. 28, 2025	Jun. 30, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Business Combination [Line Items]
Payments to acquire businesses, net cash acquired				$ 196,182,000	$ 29,162,000	$ 243,301,000
Fair value of replacement equity attributable to pre-acquisition service				$ 146,000	42,000	526,000
Acquired finite-lived intangible assets, weighted average useful life (in years)				4 years 10 months 24 days
Business acquisition, goodwill, expected tax deductible amount				$ 0
Amortization of intangible assets				26,000,000.0	19,500,000	$ 13,900,000
Apex
Business Combination [Line Items]
Percentage acquired	100.00%
Business combination, consideration transferred	$ 47,800,000
Payments to acquire businesses, net cash acquired	47,700,000
Cash acquired	2,000,000.0
Fair value of replacement equity attributable to pre-acquisition service	$ 100,000
Apex \| Acquired technology
Business Combination [Line Items]
Intangible assets				$ 6,800,000
Acquired finite-lived intangible assets, weighted average useful life (in years)				5 years
Vulcan
Business Combination [Line Items]
Percentage acquired		100.00%
Business combination, consideration transferred		$ 148,500,000
Cash acquired		$ 2,300,000
Vulcan \| Acquired technology
Business Combination [Line Items]
Intangible assets				$ 40,000,000.0
Acquired finite-lived intangible assets, weighted average useful life (in years)				7 years
Eureka
Business Combination [Line Items]
Percentage acquired			100.00%
Business combination, consideration transferred			$ 29,200,000
Cash acquired			$ 400,000
Eureka \| Acquired technology
Business Combination [Line Items]
Intangible assets					$ 6,900,000
Acquired finite-lived intangible assets, weighted average useful life (in years)					5 years

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenue	$ 999,405	$ 900,021	$ 798,710
Cost of revenue	218,937	199,668	183,577
Gross profit	780,468	700,353	615,133
Operating expenses:
Sales and marketing	416,949	395,385	393,450
Research and development	223,669	181,624	153,163
General and administrative	145,905	124,130	116,181
Restructuring	3,113	6,070	4,499
Total operating expenses	789,636	707,209	667,293
Loss from operations	(9,168)	(6,856)	(52,160)
Interest income	15,992	23,325	24,700
Interest expense	(28,419)	(31,920)	(31,339)
Other expense, net	(1,338)	(3,435)	(8,602)
Loss before income taxes	(22,933)	(18,886)	(67,401)
Provision for income taxes	13,185	17,415	10,883
Net loss	$ (36,118)	$ (36,301)	$ (78,284)
Net loss per share, basic (in usd per share)	$ (0.30)	$ (0.31)	$ (0.68)
Net loss per share, diluted (in usd per share)	$ (0.30)	$ (0.31)	$ (0.68)
Weighted-average shares used to compute net loss per share, basic (in shares)	120,124	118,789	115,408
Weighted-average shares used to compute net loss per share, diluted (in shares)	120,124	118,789	115,408

Segment and Geographic Information - Schedule of Revenue by Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 999,405	$ 900,021	$ 798,710
The Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	610,996	558,068	500,512
Europe, Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	273,114	239,741	205,851
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 115,295	$ 102,212	$ 92,347

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Acquisitions, Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2025

Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]

Schedule of Business Combination, Recognized Asset Acquired and Liability Assumed

Cash consideration, net of cash acquired, was allocated as follows:


(in thousands)	Apex		Vulcan		Eureka
Intangible assets	$	6,800	$	40,000	$	6,900
Goodwill	41,288		115,306		22,753
Accounts receivable	62		2,158		—
Deferred revenue	(34)		(7,695)		(108)
Other liabilities, net	(333)		(1,224)		(341)
Total purchase price allocation	$	47,783	$	148,545	$	29,204

Schedule of Acquisition-Related Expenses

Acquisition-related expenses are included in our consolidated statements of operations as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Sales and marketing	$	1,320	$	52	$	512
Research and development	1,778		(20)		2,880
General and administrative	4,158		1,900		6,080
Total acquisition-related expenses	$	7,256	$	1,932	$	9,472

Schedule of Goodwill

The changes in the carrying amount of goodwill are as follows:


(in thousands)
Balance at December 31, 2024	$	541,292
Acquired goodwill	156,594
Balance at December 31, 2025	$	697,886

Schedule of Acquired Intangible Assets Subject to Amortization

Acquired intangible assets subject to amortization are as follows:


	December 31, 2025						December 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Acquired technology	$	196,237	$	(80,941)	$	115,296	$	149,437	$	(54,976)	$	94,461
Trade name	490		(490)		—		490		(490)		—
	$	196,727	$	(81,431)	$	115,296	$	149,927	$	(55,466)	$	94,461

Schedule of Future Amortization of Intangible Assets

At December 31, 2025, estimated future amortization of intangible assets is as follows:


(in thousands)
Year ending December 31,
2026	$	26,945
2027	24,915
2028	21,872
2029	18,252
2030	14,522
Thereafter	8,790
Total	$	115,296

- Definition

Tabular disclosure of business combination. Includes, but is not limited to, recognized asset and liability.

+ References + Details

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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+ Details

Business and Summary of Significant Accounting Policies - Perpetual License and Maintenance Revenue (Details) - Perpetual license and maintenance revenue	12 Months Ended
	Dec. 31, 2025
Disaggregation of Revenue [Line Items]
Minimum years of maintenance included in contract	1 year
Economic life of perpetual license contracts	5 years

- Definition

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Net Loss Per Share - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings Per Share [Abstract]
Net loss	$ (36,118)	$ (36,301)	$ (78,284)
Weighted-average shares used to compute net loss per share, basic (in shares)	120,124	118,789	115,408
Weighted-average shares used to compute net loss per share, diluted (in shares)	120,124	118,789	115,408
Net loss per share, basic (in usd per share)	$ (0.30)	$ (0.31)	$ (0.68)
Net loss per share, diluted (in usd per share)	$ (0.30)	$ (0.31)	$ (0.68)

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-Topic 944
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+ Details

Stock-Based Compensation - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 191,813	$ 163,515	$ 145,327
Chief Executive Officer
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payment arrangement, accelerated cost	14,600
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	13,714	12,677	11,247
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	68,801	62,727	61,322
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	56,542	47,656	37,225
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 52,756	$ 40,455	$ 35,533

Business and Summary of Significant Accounting Policies - Stock-Based Compensation (Details)	12 Months Ended
	Dec. 31, 2025
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, stock incentive plan, vesting period (in years)	4 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite period	2 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite period	4 years

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Leases - Schedule of Maturities of Operating Lease Liabilities (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Leases [Abstract]
2026	$ 13,006
2027	12,403
2028	11,667
2029	11,611
2030	11,538
Thereafter	11,703
Total lease payments	71,928
Less: Imputed interest	(11,455)
Total	$ 60,473

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net loss	$ (36,118)	$ (36,301)	$ (78,284)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	41,955	33,209	27,108
Stock-based compensation	191,813	163,515	145,327
Net accretion of discounts and amortization of premiums on short-term investments	(3,131)	(7,595)	(8,323)
Amortization of debt issuance costs	1,442	1,353	1,267
Loss (gain) on other investments	18	(1,452)	5,617
Restructuring	0	4,528	0
Other	3,856	6,507	2,179
Changes in operating assets and liabilities:
Accounts receivable	(18,236)	(38,730)	(30,042)
Prepaid expenses and other assets	12,767	26,170	1,689
Accounts payable, accrued expenses and accrued compensation	12,147	(8,257)	7,071
Deferred revenue	58,361	82,581	81,755
Other current and noncurrent liabilities	1,876	(8,052)	(5,509)
Net cash provided by operating activities	266,750	217,476	149,855
Cash flows from investing activities:
Purchases of property and equipment	(12,102)	(4,247)	(1,704)
Capitalized software development costs	(4,474)	(6,451)	(7,052)
Purchases of short-term investments	(145,342)	(287,797)	(278,209)
Sales and maturities of short-term investments	182,670	283,964	317,651
Purchases of other investments	0	(1,250)	0
Proceeds from other investments	852	3,512	0
Business combinations, net of cash acquired	(196,182)	(29,162)	(243,301)
Net cash used in investing activities	(174,578)	(41,431)	(212,615)
Cash flows from financing activities:
Payments on term loan	(3,750)	(3,750)	(3,750)
Proceeds from stock issued in connection with the employee stock purchase plan	15,482	16,262	16,224
Proceeds from the exercise of stock options	3,619	8,064	3,501
Payments for taxes related to net share settlement of equity awards	(1,978)	0	0
Purchase of treasury stock	(247,468)	(99,977)	(14,934)
Other financing activities	0	0	210
Net cash (used in) provided by financing activities	(234,095)	(79,401)	1,251
Effect of exchange rate changes on cash and cash equivalents and restricted cash	1,038	(5,129)	(2,225)
Net (decrease) increase in cash and cash equivalents and restricted cash	(140,885)	91,515	(63,734)
Cash and cash equivalents and restricted cash at beginning of year	328,647	237,132	300,866
Cash and cash equivalents and restricted cash at end of year	187,762	328,647	237,132
Supplemental disclosure of cash flow information:
Cash paid for interest	26,841	30,977	34,323
Cash paid for income taxes, net of refunds	11,801	15,180	8,981
Supplemental cash flow information related to leases:
Cash payments for operating leases	$ 10,455	$ 9,204	$ 8,914

Revenue - Concentrations (Details)	12 Months Ended
Revenue - Concentrations (Details)	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenue \| Sales method risk \| Channel network
Concentration Risk [Line Items]
Concentration risk (in percent)	94.00%	94.00%	93.00%
Revenue \| Customer concentration risk \| One distributor
Concentration Risk [Line Items]
Concentration risk (in percent)	32.00%	34.00%	36.00%
Accounts receivable \| Customer concentration risk \| One distributor
Concentration Risk [Line Items]
Concentration risk (in percent)	27.00%	29.00%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482836/275-10-55-18

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 20
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-20

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478785/954-310-50-2

+ Details

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References + Details

Stock-Based Compensation

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-based compensation expense included in the consolidated statements of operations was as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Cost of revenue	$	13,714	$	12,677	$	11,247
Sales and marketing	68,801		62,727		61,322
Research and development	56,542		47,656		37,225
General and administrative(1)	52,756		40,455		35,533
Total stock-based compensation expense	$	191,813	$	163,515	$	145,327

_______________

(1) Stock-based compensation in 2025 includes $14.6 million of expense related to the accelerated vesting of equity awards for our former Chairman and Chief Executive Officer.

A summary of the unrecognized stock-based compensation expense related to unvested awards at December 31, 2025 is presented below:


	Unrecognized Stock-Based Compensation Expense (in thousands)		Estimated Weighted Average Period (in years)
Restricted stock units ("RSUs")	$	291,736	2.6
Performance stock units ("PSUs")	4,700		2.9
Restricted stock	5,388		2.3
2018 Employee Stock Purchase Plan ("2018 ESPP")	12,861		0.8

Restricted Stock, RSUs and PSUs

A summary of our restricted stock, RSU and PSU activity is presented below:


	Restricted Stock			RSUs			PSUs
(in thousands, except for per share data)	Number of Shares	Weighted Average Grant Date Fair Value		Number of Shares	Weighted Average Grant Date Fair Value		Number of Shares	Weighted Average Grant Date Fair Value
Unvested balance at December 31, 2022	—	$	—	6,894	$	43.26	196	$	44.97
Granted	311	45.67		4,728	43.47		188	43.24
Performance adjustment(1)	—	—		—	—		12	44.97
Vested	—	—		(3,153)	41.61		(91)	44.97
Forfeited	—	—		(1,126)	45.14		(47)	43.92
Unvested balance at December 31, 2023	311	45.67		7,343	43.80		258	43.90
Granted	—	—		4,099	45.89		170	47.20
Performance adjustment(1)	—	—		—	—		(10)	43.24
Vested	(124)	45.67		(3,217)	43.34		(107)	43.93
Forfeited	—	—		(1,016)	45.00		(11)	43.95
Unvested balance at December 31, 2024	187	45.67		7,209	45.01		300	45.78
Granted	187	32.83		6,604	35.77		201	38.37
Performance adjustment(1)	—	—		—	—		(6)	47.20
Vested(2)	(139)	42.79		(3,667)	44.74		(216)	45.84
Forfeited	(50)	45.67		(1,152)	42.08		—	—
Unvested balance at December 31, 2025	185	34.83		8,994	38.72		279	40.37

_______________

(1) Represents adjustments due to the achievement of predefined financial performance targets.

(2) Includes 20 RSUs and 5 PSUs repurchased to cover taxes.

In January 2025, under the evergreen provision in our 2018 Equity Incentive Plan we reserved an additional 6.0 million shares of our common stock. At December 31, 2025, there were 26.9 million shares available for grant under the plan.

Stock Options

A summary of our stock option activity is presented below:


(in thousands, except for exercise prices and years)	Number of Shares	Weighted Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2022	5,485	$	8.96	4.5	$	160,135

Exercised	(387)	9.05			13,364
Forfeited/canceled	(3)	10.97
Outstanding at December 31, 2023	5,095	8.95		3.5	189,108

Exercised	(1,044)	7.72			38,831
Forfeited/canceled	—	—
Outstanding at December 31, 2024	4,051	9.26		2.6	122,024

Exercised(1)	(2,646)	7.44			67,124
Forfeited/canceled	(2)	6.16
Outstanding and exercisable at December 31, 2025	1,403	12.70		2.0	15,210

_______________

(1) Includes 485 options netted for option costs and 40 shares repurchased to cover taxes.

Stock options were last granted in 2018. Stock options granted under our stock incentive plans have a maximum term of ten years, generally vest over a period of three to four years, and the exercise price cannot be less than the fair market value on the date of grant.

2018 Employee Stock Purchase Plan

Under our 2018 ESPP, employees may set aside up to 15% of their gross earnings, on an after-tax basis, to purchase our common stock at a discounted price, which is calculated at 85% of the lower of the fair market value of our common stock on the first day of an offering or on the date of purchase. The 2018 ESPP permits offerings up to 27 months in duration, with one or more purchase periods in each offering. Additionally, in cases where the fair market value of a share of our common stock on the first day of a new purchase period within an offering is less than or equal to the fair market value of a share of our common stock at the beginning of the offering, that offering will be terminated and participants will be automatically enrolled in a new offering with a new 24-month duration and purchase periods every six months.

A summary of our ESPP activity is presented below:


	Year Ended December 31,
(dollars and shares in thousands)	2025	2024	2023
Shares of common stock purchased	519.1	498.9	506.4
Weighted average price	$29.82	$32.60	$32.04
Cash proceeds	$15,482	$16,262	$16,224

At December 31, 2025 and 2024 there were $7.1 million and $6.9 million, respectively, of employee contributions to the 2018 ESPP included in accrued compensation.

Estimating the fair value of ESPP purchase rights using the Black-Scholes option-pricing model requires assumptions as to the fair value of common stock, expected term, expected volatility, the risk-free interest rate and the expected dividend yield.

Fair Value of Common Stock. We use the market price of our common stock at the date of grant.

Expected Term. We use the actual purchase periods as the expected term in the 2018 ESPP.

Expected Volatility. Volatility is a measure of the amount by which a financial variable, such as a share price, has fluctuated (historical volatility) or is expected to fluctuate (expected volatility) during a period. We use the historical volatility of our common stock to estimate expected volatility.

Risk-Free Interest Rate. This is the U.S. Treasury rate, having a term that most closely resembles the expected life of the stock option.

Expected Dividend Yield. We have never declared or paid dividends and have no plans to do so in the foreseeable future.

The fair value of the 2018 ESPP purchase rights was estimated on the offering or modification dates using the following assumptions:


	Year Ended December 31,
	2025	2024	2023
Expected term (in years)	0.5 — 2.0	0.5 — 2.0	0.5 — 2.0
Expected volatility	32.8% — 35.7%	31.9% — 51.4%	46.9% — 58.1%
Risk-free interest rate	3.6% — 3.9%	3.8% — 5.1%	4.8% — 5.4%
Expected dividend yield	—	—	—

Under the evergreen provision in our 2018 ESPP, in January 2025 we reserved an additional 1.8 million shares of our common stock. At December 31, 2025, there were 11.2 million shares reserved for issuance under the 2018 ESPP.

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 656	$ 525
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	129,046,000	122,371,000
Treasury Stock (in shares)	10,596,000	2,673,000

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation Expense

Stock-based compensation expense included in the consolidated statements of operations was as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Cost of revenue	$	13,714	$	12,677	$	11,247
Sales and marketing	68,801		62,727		61,322
Research and development	56,542		47,656		37,225
General and administrative(1)	52,756		40,455		35,533
Total stock-based compensation expense	$	191,813	$	163,515	$	145,327

_______________

(1) Stock-based compensation in 2025 includes $14.6 million of expense related to the accelerated vesting of equity awards for our former Chairman and Chief Executive Officer.

Schedule of Unrecognized Stock-Based Compensation

A summary of the unrecognized stock-based compensation expense related to unvested awards at December 31, 2025 is presented below:


	Unrecognized Stock-Based Compensation Expense (in thousands)		Estimated Weighted Average Period (in years)
Restricted stock units ("RSUs")	$	291,736	2.6
Performance stock units ("PSUs")	4,700		2.9
Restricted stock	5,388		2.3
2018 Employee Stock Purchase Plan ("2018 ESPP")	12,861		0.8

Schedule of RSUs and PSUs

A summary of our restricted stock, RSU and PSU activity is presented below:


	Restricted Stock			RSUs			PSUs
(in thousands, except for per share data)	Number of Shares	Weighted Average Grant Date Fair Value		Number of Shares	Weighted Average Grant Date Fair Value		Number of Shares	Weighted Average Grant Date Fair Value
Unvested balance at December 31, 2022	—	$	—	6,894	$	43.26	196	$	44.97
Granted	311	45.67		4,728	43.47		188	43.24
Performance adjustment(1)	—	—		—	—		12	44.97
Vested	—	—		(3,153)	41.61		(91)	44.97
Forfeited	—	—		(1,126)	45.14		(47)	43.92
Unvested balance at December 31, 2023	311	45.67		7,343	43.80		258	43.90
Granted	—	—		4,099	45.89		170	47.20
Performance adjustment(1)	—	—		—	—		(10)	43.24
Vested	(124)	45.67		(3,217)	43.34		(107)	43.93
Forfeited	—	—		(1,016)	45.00		(11)	43.95
Unvested balance at December 31, 2024	187	45.67		7,209	45.01		300	45.78
Granted	187	32.83		6,604	35.77		201	38.37
Performance adjustment(1)	—	—		—	—		(6)	47.20
Vested(2)	(139)	42.79		(3,667)	44.74		(216)	45.84
Forfeited	(50)	45.67		(1,152)	42.08		—	—
Unvested balance at December 31, 2025	185	34.83		8,994	38.72		279	40.37

_______________

(1) Represents adjustments due to the achievement of predefined financial performance targets.

(2) Includes 20 RSUs and 5 PSUs repurchased to cover taxes.

Schedule of Stock Option Activity

A summary of our stock option activity is presented below:


(in thousands, except for exercise prices and years)	Number of Shares	Weighted Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2022	5,485	$	8.96	4.5	$	160,135

Exercised	(387)	9.05			13,364
Forfeited/canceled	(3)	10.97
Outstanding at December 31, 2023	5,095	8.95		3.5	189,108

Exercised	(1,044)	7.72			38,831
Forfeited/canceled	—	—
Outstanding at December 31, 2024	4,051	9.26		2.6	122,024

Exercised(1)	(2,646)	7.44			67,124
Forfeited/canceled	(2)	6.16
Outstanding and exercisable at December 31, 2025	1,403	12.70		2.0	15,210

_______________

(1) Includes 485 options netted for option costs and 40 shares repurchased to cover taxes.

Schedule of Employee Stock Purchase Plan Activity

A summary of our ESPP activity is presented below:


	Year Ended December 31,
(dollars and shares in thousands)	2025	2024	2023
Shares of common stock purchased	519.1	498.9	506.4
Weighted average price	$29.82	$32.60	$32.04
Cash proceeds	$15,482	$16,262	$16,224

Schedule of ESPP Valuation Assumptions

The fair value of the 2018 ESPP purchase rights was estimated on the offering or modification dates using the following assumptions:


	Year Ended December 31,
	2025	2024	2023
Expected term (in years)	0.5 — 2.0	0.5 — 2.0	0.5 — 2.0
Expected volatility	32.8% — 35.7%	31.9% — 51.4%	46.9% — 58.1%
Risk-free interest rate	3.6% — 3.9%	3.8% — 5.1%	4.8% — 5.4%
Expected dividend yield	—	—	—

Acquisitions, Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2025

Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]

Acquisitions, Goodwill and Intangible Assets

Acquisitions

In June 2025, we acquired Apex Security, Inc. ("Apex"), an innovator in securing the rapidly expanding AI attack surface. This acquisition is expected to strengthen our ability to help organizations identify and reduce cyber risk, adding the ability to govern usage, enforce policy, and control exposure across both the AI that organizations use and the AI they build. We acquired 100% of Apex's equity through a share purchase agreement for total consideration of $47.8 million, including $47.7 million in cash, net of $2.0 million cash acquired, and $0.1 million fair value of replacement equity.

In February 2025, we acquired Vulcan Cyber Ltd. ("Vulcan"), an innovator in cyber risk management. This acquisition is expected to add enhanced visibility, extended third-party data flows, risk prioritization and optimized remediation to strengthen our Tenable One Exposure Management platform. We acquired 100% of Vulcan's equity through a share purchase agreement for total cash consideration of $148.5 million, net of $2.3 million cash acquired.

In June 2024, we acquired Eureka Security, Inc. ("Eureka"), a provider of data security posture management ("DSPM") for cloud environments. Adding Eureka's DSPM capabilities to our solutions provides customers a view into their organization's cloud data security footprint, fight policy drift and misconfigurations that put data at risk, and enables customers to continuously improve their security posture over time. We acquired 100% of Eureka's equity through a share purchase agreement for total cash consideration of $29.2 million, net of $0.4 million cash acquired.

Cash consideration, net of cash acquired, was allocated as follows:


(in thousands)	Apex		Vulcan		Eureka
Intangible assets	$	6,800	$	40,000	$	6,900
Goodwill	41,288		115,306		22,753
Accounts receivable	62		2,158		—
Deferred revenue	(34)		(7,695)		(108)
Other liabilities, net	(333)		(1,224)		(341)
Total purchase price allocation	$	47,783	$	148,545	$	29,204

Intangible assets acquired during the year ended December 31, 2025 included Apex's proprietary technology for $6.8 million with an estimated useful life of 5 years and Vulcan's proprietary technology for $40.0 million with an estimated useful life of 7 years.

Intangible assets acquired during the year ended December 31, 2024 included Eureka's proprietary technology for $6.9 million with an estimated useful life of 5 years.

The results of operations of Apex, Vulcan and Eureka are included in our consolidated statements of operations from the applicable acquisition dates and were not material. Pro forma results of operations are not presented as they are not material to the consolidated statements of operations.

Acquisition-related expenses are included in our consolidated statements of operations as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Sales and marketing	$	1,320	$	52	$	512
Research and development	1,778		(20)		2,880
General and administrative	4,158		1,900		6,080
Total acquisition-related expenses	$	7,256	$	1,932	$	9,472

Goodwill and Acquired Intangible Assets

The changes in the carrying amount of goodwill are as follows:


(in thousands)
Balance at December 31, 2024	$	541,292
Acquired goodwill	156,594
Balance at December 31, 2025	$	697,886

The excess purchase consideration over the fair value of acquired assets and liabilities is recorded as goodwill. The acquired goodwill reflects the synergies we expect from marketing and selling these new capabilities from Apex, Vulcan and Eureka to our customers. Acquired goodwill is generally not tax deductible.

Acquired intangible assets subject to amortization are as follows:


	December 31, 2025						December 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Acquired technology	$	196,237	$	(80,941)	$	115,296	$	149,437	$	(54,976)	$	94,461
Trade name	490		(490)		—		490		(490)		—
	$	196,727	$	(81,431)	$	115,296	$	149,927	$	(55,466)	$	94,461

Amortization of acquired intangible assets was $26.0 million, $19.5 million and $13.9 million in 2025, 2024 and 2023, respectively. At December 31, 2025, our acquired intangible assets are expected to be amortized over an estimated weighted average period of 4.9 years.

At December 31, 2025, estimated future amortization of intangible assets is as follows:


(in thousands)
Year ending December 31,
2026	$	26,945
2027	24,915
2028	21,872
2029	18,252
2030	14,522
Thereafter	8,790
Total	$	115,296

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments In December 2023, we entered into a contract with Microsoft for cloud services from February 2024 through January 2027. Under the terms of the contract we committed to spend €28.5 million. If we do not meet our commitment by the end of the term, we will be required to pay the difference. As of December 31, 2025, we have spent €14.9 million of our commitment. In July 2024, we entered into a new contract with AWS for cloud services, in which we committed to spend $59.7 million, $77.6 million and $93.0 million in contract years one, two and three, respectively, for a total commitment of $230.3 million from August 2024 to July 2027. As of December 31, 2025, we have met our first year commitment and we have spent $31.3 million of our second year commitment. Letters of Credit At December 31, 2025, we had $5.7 million of standby letters of credit related to our grant agreements with the State of Maryland and our operating leases. Collateral for $5.5 million of our letters of credit was classified as restricted cash in cash and cash equivalents.

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Assets Measured At Fair Value on Recurring Basis

The following tables summarize assets that are measured at fair value on a recurring basis:


	December 31, 2025
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents
Money market funds	$	59,760	$	—	$	—	$	59,760

Total cash equivalents	$	59,760	$	—	$	—	$	59,760

Short-term investments
Commercial paper	$	—	$	5,066	$	—	$	5,066
Corporate bonds	—		94,894		—		94,894
Asset backed securities	—		17,364		—		17,364


Yankee bonds	—		13,293		—		13,293
U.S. Treasury and agency obligations	—		83,802		—		83,802
Total short-term investments	$	—	$	214,419	$	—	$	214,419


	December 31, 2024
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents
Money market funds	$	190,750	$	—	$	—	$	190,750
Total cash equivalents	$	190,750	$	—	$	—	$	190,750

Short-term investments
Commercial paper	$	—	$	41,604	$	—	$	41,604
Corporate bonds	—		95,410		—		95,410
Asset backed securities	—		30,796		—		30,796


Yankee bonds	—		14,007		—		14,007
U.S. Treasury and agency obligations	—		66,730		—		66,730
Total short-term investments	$	—	$	248,547	$	—	$	248,547

Our investments in privately held securities were as follows:


	December 31,
(in thousands)	2025		2024
Equity securities	$	6,702	$	6,701
Debt and other securities	1,000		1,871
Total other investments	$	7,702	$	8,572

Stock-Based Compensation - Schedule of RSUs and PSUs (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Restricted Stock
Number of Shares
Number of shares unvested, beginning of period (in shares)	187	311	0
Number of shares, granted (in shares)	187	0	311
Number of shares, performance adjustment (in shares)	0	0	0
Number of shares, vested (in shares)	(139)	(124)	0
Number of shares, forfeited (in shares)	(50)	0	0
Number of shares unvested, end of period (in shares)	185	187	311
Weighted Average Grant Date Fair Value
Weighted average grant date fair value, beginning of period (in usd per share)	$ 45.67	$ 45.67	$ 0
Weighted average grant date fair value, granted (in usd per share)	32.83	0	45.67
Weighted average grant date fair value, performance adjustment (in usd per share)	0	0	0
Weighted average grant date fair value, vested (in usd per share)	42.79	45.67	0
Weighted average grant date fair value, forfeited (in usd per share)	45.67	0	0
Weighted average grant date fair value, end of period (in usd per share)	$ 34.83	$ 45.67	$ 45.67
RSUs
Number of Shares
Number of shares unvested, beginning of period (in shares)	7,209	7,343	6,894
Number of shares, granted (in shares)	6,604	4,099	4,728
Number of shares, performance adjustment (in shares)	0	0	0
Number of shares, vested (in shares)	(3,667)	(3,217)	(3,153)
Number of shares, forfeited (in shares)	(1,152)	(1,016)	(1,126)
Number of shares unvested, end of period (in shares)	8,994	7,209	7,343
Weighted Average Grant Date Fair Value
Weighted average grant date fair value, beginning of period (in usd per share)	$ 45.01	$ 43.80	$ 43.26
Weighted average grant date fair value, granted (in usd per share)	35.77	45.89	43.47
Weighted average grant date fair value, performance adjustment (in usd per share)	0	0	0
Weighted average grant date fair value, vested (in usd per share)	44.74	43.34	41.61
Weighted average grant date fair value, forfeited (in usd per share)	42.08	45.00	45.14
Weighted average grant date fair value, end of period (in usd per share)	$ 38.72	$ 45.01	$ 43.80
Shares repurchased to cover taxes (in shares)	20
PSUs
Number of Shares
Number of shares unvested, beginning of period (in shares)	300	258	196
Number of shares, granted (in shares)	201	170	188
Number of shares, performance adjustment (in shares)	(6)	(10)	12
Number of shares, vested (in shares)	(216)	(107)	(91)
Number of shares, forfeited (in shares)	0	(11)	(47)
Number of shares unvested, end of period (in shares)	279	300	258
Weighted Average Grant Date Fair Value
Weighted average grant date fair value, beginning of period (in usd per share)	$ 45.78	$ 43.90	$ 44.97
Weighted average grant date fair value, granted (in usd per share)	38.37	47.20	43.24
Weighted average grant date fair value, performance adjustment (in usd per share)	47.20	43.24	44.97
Weighted average grant date fair value, vested (in usd per share)	45.84	43.93	44.97
Weighted average grant date fair value, forfeited (in usd per share)	0	43.95	43.92
Weighted average grant date fair value, end of period (in usd per share)	$ 40.37	$ 45.78	$ 43.90
Shares repurchased to cover taxes (in shares)	5
Stock options
Weighted Average Grant Date Fair Value
Shares repurchased to cover taxes (in shares)	40

Insider Trading Policies and Procedures	12 Months Ended
Insider Trading Policies and Procedures	Dec. 31, 2025
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Income Taxes - Schedule of Differences Between Federal and Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Amount
U.S. federal statutory tax rate	$ (4,816)
State and local income tax, net of federal (national) income tax effect	916
Foreign branch loss	(7,850)
Legal entity reorganization	(3,032)
Other	(23)
Other	1,502
Research credits	(3,282)
Changes in unrecognized tax benefits	359
Total provision for income taxes	$ 13,185	$ 17,415	$ 10,883
Percent
U.S. federal statutory tax rate	21.00%	21.00%	21.00%
State and local income tax, net of federal (national) income tax effect	(4.00%)	(0.90%)	1.90%
Federal statutory tax rate difference		35.40%	(1.70%)
Changes in valuation allowances		(81.70%)	(34.00%)
Stock compensation		(13.60%)	(11.30%)
Other		(2.30%)	(0.30%)
Foreign branch loss	34.20%
Legal entity reorganization	13.20%
Other	0.10%
Other	(6.50%)
Research credits	14.30%	25.50%	8.40%
Changes in unrecognized tax benefits	(1.60%)
Gain on intercompany sale, net of losses		(2.10%)	(1.40%)
Foreign withholding tax		(24.80%)	(5.40%)
Foreign deferred FX remeasurement		(20.50%)	9.00%
GILTI		(1.70%)	0.00%
BEAT		(17.60%)	0.00%
Transaction costs		(3.60%)	(1.00%)
Non-deductible expenses		(5.30%)	(1.50%)
Total tax expense	(57.50%)	(92.20%)	(16.30%)
Brazil
Amount
Foreign withholding taxes	$ 2,438
Percent
Foreign withholding taxes	(10.60%)
Colombia
Amount
Foreign withholding taxes	$ 1,181
Percent
Foreign withholding taxes	(5.10%)
Israel
Amount
Federal statutory tax rate difference	$ (1,219)
Currency remeasurement	(4,732)
Changes in valuation allowances	16,206
Stock compensation	1,409
Other	$ 858
Percent
Federal statutory tax rate difference	5.30%
Currency remeasurement	20.60%
Changes in valuation allowances	(70.70%)
Stock compensation	(6.10%)
Other	(3.70%)
Ireland
Amount
Currency remeasurement	$ (5,588)
Changes in valuation allowances	4,321
Other	$ (430)
Percent
Currency remeasurement	24.40%
Changes in valuation allowances	(18.80%)
Other	1.90%
France
Amount
Federal statutory tax rate difference	$ 2,197
Percent
Federal statutory tax rate difference	(9.60%)
Other
Amount
Federal statutory tax rate difference	$ 3,096
Percent
Federal statutory tax rate difference	(13.60%)
United States
Amount
Changes in valuation allowances	$ 7,374
Stock compensation	$ 2,300
Percent
Changes in valuation allowances	(32.20%)
Stock compensation	(10.00%)

Business and Summary of Significant Accounting Policies - Segment Information (Details)	12 Months Ended
	Dec. 31, 2025 segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of operating segments	1

Business and Summary of Significant Accounting Policies - Property and Equipment, net (Details)	Dec. 31, 2025
Computer software and equipment
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years

Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2025

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share:


	Year Ended December 31,
(in thousands, except per share data)	2025		2024		2023
Net loss	$	(36,118)	$	(36,301)	$	(78,284)

Weighted-average shares used to compute net loss per share, basic and diluted	120,124		118,789		115,408
Net loss per share, basic and diluted	$	(0.30)	$	(0.31)	$	(0.68)

Schedule of Potentially Dilutive Securities

The following potentially dilutive securities have been excluded from the diluted per share calculations because they would have been antidilutive:


	Year Ended December 31,
(in thousands)	2025	2024	2023
RSUs	8,994	7,209	7,343
Stock options	1,403	4,051	5,095
Shares to be issued under the 2018 ESPP	268	198	245
PSUs	279	300	258
Restricted stock	185	187	311
Total	11,129	11,945	13,252

Segment and Geographic Information - Schedule of Property and Equipment, Net by Geographic Area (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 40,062	$ 39,265
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	26,494	33,101
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 13,568	$ 6,164

Business and Summary of Significant Accounting Policies - Restructuring (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 3,113	$ 6,070	$ 4,499
Severance and Employee Related Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 3,100	1,500
Optimization of Go-to-Market Efforts
Restructuring Cost and Reserve [Line Items]
Restructuring		$ 1,500

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References + Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Cybersecurity Risk Management and Strategy Disclosure	Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	We recognize the critical importance of developing, implementing, and maintaining robust cybersecurity measures to safeguard our information systems and protect the confidentiality, integrity, and availability of our data and our exposure management solutions. We have implemented and maintain various information security processes designed to identify, assess and manage material risks from cybersecurity threats to our critical computer networks, third-party hosted services, communications systems, hardware and software, critical data (including without limitation intellectual property, confidential information that is proprietary, strategic or competitive, customer vulnerability data, and information systems data), and exposure management solutions. Our Information Security function is overseen by our Chief Security Officer, or CSO, and is supported by our Chief Information Officer, Chief Product Officer and Product Engineering Team Leads, Chief Legal Officer, and Head of Global Privacy. Our Information Security function is responsible for identifying, assessing and managing cybersecurity threats and risks and works to monitor and evaluate our threat environment and risk profile using various methods. These methods include conducting vulnerability assessments and threat assessments in certain environments for internal and external threats, scanning certain environments, analyzing certain reports of threats and actors, conducting internal audits for certain systems, evaluating our and our industry’s risk profile, coordinating with law enforcement concerning select threats, and engaging with third-party service providers to conduct external audits, threat assessments for certain systems, provide intelligence feeds, and conduct red/blue team testing and tabletop incident response exercises. We implement and maintain various technical, physical, and organizational measures, processes, standards and policies designed to manage and mitigate material risks from cybersecurity threats to our information systems and data depending on the environment. This includes maintaining an incident response plan, exposure management policy, and disaster recovery and business continuity plans, conducting risk assessments for certain environments, implementing certain security standards and certifications for certain products and systems, encrypting certain data in transit and at rest, controlling data access in certain environments, using multiple security controls in certain environments, segregating certain data, monitoring certain systems, performing regular security assessments for certain systems, training employees, maintaining cybersecurity insurance, maintaining dedicated cybersecurity staff, and conducting internal and external penetration tests. Our assessment and management of material risks from cybersecurity threats are integrated into our overall risk management processes. This integration is designed to ensure that cybersecurity considerations are part of our decision-making processes. Our senior management evaluates material risks from cybersecurity threats against our overall business objectives and reports to the Cybersecurity Risk Management Committee, or Cybersecurity Committee, of the Board of Directors. We use third-party service providers to assist us from time to time in identifying, assessing, and managing material risks from cybersecurity threats, including for example cybersecurity consultants and software providers, managed cybersecurity service providers, threat intelligence service providers, forensic investigators, penetration testing firms, dark web monitoring services, and professional services firms, including legal counsel and auditors. By partnering with these specialized providers, we can leverage their insights and expertise to continue to refine our cybersecurity strategies and processes. We have established processes designed to manage the cybersecurity risks associated with working with third-party service providers. We evaluate the risks associated with third parties before engagement and maintain ongoing monitoring of such third parties designed to ensure compliance with our security standards. This includes security questionnaires and assessments, as well as external attack surface management. Depending on the nature of the services provided, the sensitivity of the information systems and data at issue, and the identity of the provider, our vendor management process may involve different levels of assessment designed to help identify cybersecurity risks associated with a provider and impose contractual obligations related to cybersecurity on the provider. See Risk Factors in this Annual Report on Form 10-K for a description of the risks from cybersecurity threats that may materially affect us and how they may do so.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	We recognize the critical importance of developing, implementing, and maintaining robust cybersecurity measures to safeguard our information systems and protect the confidentiality, integrity, and availability of our data and our exposure management solutions. We have implemented and maintain various information security processes designed to identify, assess and manage material risks from cybersecurity threats to our critical computer networks, third-party hosted services, communications systems, hardware and software, critical data (including without limitation intellectual property, confidential information that is proprietary, strategic or competitive, customer vulnerability data, and information systems data), and exposure management solutions.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Our Board of Directors addresses cybersecurity risk management as part of its general oversight function.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Cybersecurity Committee assists with fulfilling this oversight responsibility for our cybersecurity risk management processes, including oversight and mitigation of risks from cybersecurity threats. The Cybersecurity Committee bears the primary responsibility for oversight of the management of risks related to the use and protection of information technology, cybersecurity, and product security. The Cybersecurity Committee consists of directors with cybersecurity and other expertise including risk management, technology and finance.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The CSO reports directly to our Co-Chief Executive Officer, Mr. Vintz, and provides regular updates to our executive team, Cybersecurity Committee and Board of Directors on certain cybersecurity risks and incidents. In the event of a cybersecurity incident, the CSO initiates our incident response plan that includes actions designed to mitigate the impact and long-term strategies for remediation and prevention of future incidents. Our incident response plan is designed to escalate certain cybersecurity incidents to members of management depending on the circumstances, including reporting to the Cybersecurity Committee and the Board of Directors for certain cybersecurity incidents.
Cybersecurity Risk Role of Management [Text Block]	The Cybersecurity Committee bears the primary responsibility for oversight of the management of risks related to the use and protection of information technology, cybersecurity, and product security. The Cybersecurity Committee consists of directors with cybersecurity and other expertise including risk management, technology and finance. Our CSO is responsible for implementing and maintaining our cybersecurity risk assessment and management processes. Our CSO has over 25 years of experience in cybersecurity, including serving as a chief security and strategy officer at another company as well as serving over 20 years conducting offensive and defensive cyber operations within the intelligence community and US Cyber Command. Our CSO oversees and maintains our information security management framework and is responsible for defining and implementing our information security strategy, hiring appropriate personnel, communicating key cybersecurity priorities to relevant personnel, and managing cybersecurity budgets and cybersecurity processes. Our CSO seeks to regularly obtain information about relevant developments in cybersecurity, including potential threats and risk management techniques to help shape our approach to preventing, detecting, mitigating, and remediating cybersecurity threats. Our CSO is also responsible for implementing and overseeing processes for regularly monitoring our information systems and data, including the conducting of periodic audits of certain systems to identify potential vulnerabilities. The CSO reports directly to our Co-Chief Executive Officer, Mr. Vintz, and provides regular updates to our executive team, Cybersecurity Committee and Board of Directors on certain cybersecurity risks and incidents. In the event of a cybersecurity incident, the CSO initiates our incident response plan that includes actions designed to mitigate the impact and long-term strategies for remediation and prevention of future incidents. Our incident response plan is designed to escalate certain cybersecurity incidents to members of management depending on the circumstances, including reporting to the Cybersecurity Committee and the Board of Directors for certain cybersecurity incidents.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	Our CSO is responsible for implementing and maintaining our cybersecurity risk assessment and management processes. Our CSO has over 25 years of experience in cybersecurity, including serving as a chief security and strategy officer at another company as well as serving over 20 years conducting offensive and defensive cyber operations within the intelligence community and US Cyber Command. Our CSO oversees and maintains our information security management framework and is responsible for defining and implementing our information security strategy, hiring appropriate personnel, communicating key cybersecurity priorities to relevant personnel, and managing cybersecurity budgets and cybersecurity processes.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Our CSO has over 25 years of experience in cybersecurity, including serving as a chief security and strategy officer at another company as well as serving over 20 years conducting offensive and defensive cyber operations within the intelligence community and US Cyber Command.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	The CSO reports directly to our Co-Chief Executive Officer, Mr. Vintz, and provides regular updates to our executive team, Cybersecurity Committee and Board of Directors on certain cybersecurity risks and incidents. In the event of a cybersecurity incident, the CSO initiates our incident response plan that includes actions designed to mitigate the impact and long-term strategies for remediation and prevention of future incidents. Our incident response plan is designed to escalate certain cybersecurity incidents to members of management depending on the circumstances, including reporting to the Cybersecurity Committee and the Board of Directors for certain cybersecurity incidents.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Stock-Based Compensation - Additional Information (Details) - USD ($) shares in Millions, $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2025	Dec. 31, 2025	Dec. 31, 2024
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, stock incentive plans, maximum term (in years)		10 years
Stock options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, stock incentive plan, vesting period (in years)		3 years
Stock options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, stock incentive plan, vesting period (in years)		4 years
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares reserved (in shares)	1.8
Shares available for grant (in shares)		11.2
Percentage of employee earnings allowed		15.00%
Discount price percentage		85.00%
Offering period (up to)		27 months
Share-based payment award, termination contingency, new offering period		24 months
Share-based payment award, termination contingency, new purchase period		6 months
Employee contributions		$ 7.1	$ 6.9
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares reserved (in shares)	6.0
Shares available for grant (in shares)		26.9

Business and Summary of Significant Accounting Policies - Advertising (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Advertising costs incurred	$ 19.8	$ 13.8	$ 16.2

Stock-Based Compensation - Schedule of Unrecognized Stock-Based Compensation (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($)
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Expense (in thousands)	$ 291,736
Estimated Weighted Average Period (in years)	2 years 7 months 6 days
Performance stock units ("PSUs")
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Expense (in thousands)	$ 4,700
Estimated Weighted Average Period (in years)	2 years 10 months 24 days
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Expense (in thousands)	$ 5,388
Estimated Weighted Average Period (in years)	2 years 3 months 18 days
2018 Employee Stock Purchase Plan ("2018 ESPP")
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Expense (in thousands)	$ 12,861
Estimated Weighted Average Period (in years)	9 months 18 days

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Cash Equivalents and Short-Term Investments (Tables)

12 Months Ended

Dec. 31, 2025

Cash and Cash Equivalents [Abstract]

Schedule of Amortized Cost, Unrealized Gain and Loss and Estimated Fair Value

The following tables summarize the amortized cost, unrealized gain and loss and estimated fair value of cash equivalents and short-term investments:


	December 31, 2025
(in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value
Cash equivalents
Money market funds	$	59,760	$	—	$	—	$	59,760

Total cash equivalents	$	59,760	$	—	$	—	$	59,760

Short-term investments
Commercial paper	$	5,063	$	3	$	—	$	5,066
Corporate bonds	94,729		167		(2)		94,894
Asset backed securities	17,331		33		—		17,364

Yankee bonds	13,280		14		(1)		13,293
U.S. Treasury and agency obligations	83,629		173		—		83,802
Total short-term investments	$	214,032	$	390	$	(3)	$	214,419


	December 31, 2024
(in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value
Cash equivalents
Money market funds	$	190,750	$	—	$	—	$	190,750

Total cash equivalents	$	190,750	$	—	$	—	$	190,750

Short-term investments
Commercial paper	$	41,610	$	—	$	(6)	$	41,604
Corporate bonds	95,267		208		(65)		95,410
Asset backed securities	30,740		63		(7)		30,796


Yankee bonds	13,998		16		(7)		14,007
U.S. Treasury and agency obligations	66,614		155		(39)		66,730
Total short-term investments	$	248,229	$	442	$	(124)	$	248,547

Schedule of Contractual Maturities on Short-Term Investments

The contractual maturities of our short-term investments are as follows:


	December 31, 2025				December 31, 2024
(in thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due within one year	$	178,677	$	178,995	$	204,156	$	204,532
Due between one and two years	35,355		35,424		44,073		44,015
Total short-term investments	$	214,032	$	214,419	$	248,229	$	248,547

- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-9

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aaa)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

+ Details

Property and Equipment, Net - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Depreciation and amortization	$ 16,000	$ 13,700	$ 13,200
Restructuring	$ 3,113	$ 6,070	$ 4,499

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References + Details

Income Taxes - Schedule of Components of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Current
Federal	$ 5	$ 3,278	$ 5
State	300	454	708
Foreign	11,432	13,036	9,930
Total current tax expense	11,737	16,768	10,643
Deferred
Federal	1,095	580	293
State	676	227	239
Foreign	(323)	(160)	(292)
Total deferred tax expense	1,448	647	240
Total provision for income taxes	$ 13,185	$ 17,415	$ 10,883

Stock-Based Compensation - Schedule of Fair Value of ESPP Purchase Rights (Details) - Employee Stock Purchase Plan	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility, minimum	32.80%	31.90%	46.90%
Expected volatility, maximum	35.70%	51.40%	58.10%
Risk - free interest rate, minimum	3.60%	3.80%	4.80%
Risk - free interest rate, maximum	3.90%	5.10%	5.40%
Expected dividend yield	0.00%	0.00%	0.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	6 months	6 months	6 months
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	2 years	2 years	2 years

Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Net operating losses	$ 187,353	$ 153,781
Deferred revenue	21,706	21,949
Stock-based compensation	22,571	21,802
Tax credits	31,692	28,420
Leases	14,307	14,936
Accrued compensation	4,104	3,364
Interest expense	969	2,171
Capitalized research and development	34,621	32,441
Other	3,221	3,219
Total deferred tax assets	320,544	282,083
Valuation allowance	(254,880)	(219,773)
Net deferred tax assets	65,664	62,310
Deferred tax liabilities:
Deferred commissions	(24,212)	(23,623)
Property and equipment	(11,071)	(12,821)
Intangible assets	(32,827)	(27,302)
Other	(1,213)	(773)
Total deferred tax liabilities	(69,323)	(64,519)
Net deferred tax liabilities	$ (3,659)	$ (2,209)

Leases (Tables)

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Schedule of Components of Lease Expense and Supplemental Information

The components of lease expense were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Operating lease cost(1)	$	9,865	$	8,102	$	7,592

_______________

(1) Excludes sublease income.

Supplemental information related to leases was as follows:


	December 31,
	2025	2024
Operating leases
Weighted average remaining lease term	5.7 years	6.5 years
Weighted average discount rate	6.2%	6.1%


	Year Ended December 31,
(in thousands)	2025		2024		2023
ROU assets obtained in exchange for lease obligations
Operating leases	$	1,832	$	10,143	$	1,234

Schedule of Maturities of Operating Lease Liabilities

Maturities of operating lease liabilities at December 31, 2025 were as follows:


(in thousands)
Year ending December 31,
2026	$	13,006
2027	12,403
2028	11,667
2029	11,611
2030	11,538
Thereafter	11,703
Total lease payments	71,928
Less: Imputed interest	(11,455)
Total	$	60,473

Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements include the accounts of Tenable Holdings, Inc. and our wholly owned subsidiaries and have been prepared in conformity with United States generally accepted accounting principles ("GAAP").
Consolidation	All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. These estimates include, but are not limited to, the estimated period of benefit for deferred commissions, the useful lives of long-lived assets, the fair value of acquired intangible assets, the valuation of stock-based compensation, the incremental borrowing rate for operating leases and the valuation of deferred tax assets and investments. We base these estimates on historical experience and on various other assumptions that we believe to be reasonable. Actual results could differ significantly from these estimates.
Foreign Currency	Foreign Currency The functional currency for all of our foreign subsidiaries is the U.S. dollar. Assets and liabilities denominated in other currencies are remeasured into U.S. dollars at current exchange rates for monetary assets and liabilities and at historical exchange rates for non-monetary assets and liabilities. We bill our customers in U.S. dollars. Expenses incurred in non U.S. dollar currencies are remeasured into U.S. dollars when incurred. Remeasurement losses in currencies other than the functional currency were $1.6 million, $5.0 million and $3.1 million in 2025, 2024 and 2023, respectively, and are included as a component of other expense, net in the consolidated statements of operations.
Revenue Recognition/Deferred Commissions	Revenue Recognition We recognize revenue in order to depict the transfer of promised goods or services to customers in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. To achieve this, we apply the following steps: •Identify the contract with a customer •Identify the performance obligations in the contract •Determine the transaction price •Allocate the transaction price to the performance obligations in the contract •Recognize revenue when or as performance obligations are satisfied In situations where we enter into a contractual arrangement that includes non-standard terms and conditions, such as acceptance provisions or options to purchase additional products and services, as well as contract modifications, we apply judgment in identifying and assessing the impact on revenue recognition. We generate revenue from subscription arrangements for software and cloud-based solutions, perpetual licenses, maintenance associated with perpetual licenses, and professional services and other revenue. We begin to recognize revenue when control of our software or services is transferred to the customer, which for sales made through distributors is concurrent with the transfer to the end user. Subscription Revenue Subscription arrangements generally have annual or multi-year contractual terms and allow customers to use our software or cloud solutions. For our software subscriptions that are dependent on ongoing software updates and the ability to identify the latest cybersecurity vulnerabilities, revenue is recognized ratably over the subscription term given the critical utility provided by the ongoing updates that are released throughout the contract period. When the critical utility of our software does not depend on ongoing updates, we recognize revenue attributable to the license at the time of delivery and the revenue attributable to the maintenance and support ratably over the contract period. Perpetual License and Maintenance Revenue Our perpetual licenses are generally sold with one or more years of maintenance that include ongoing software updates to identify the latest cybersecurity vulnerabilities, which provide critical utility to the software. We recognize perpetual license revenue over a five-year estimated economic life of the expected customer contract. Professional Services and Other Revenue Professional services and other revenue is primarily comprised of advisory services and training related to the deployment and optimization of our products. These services do not result in significant customization of our products. Professional services and other revenue is recognized as the services are performed. Contracts with Multiple Performance Obligations In cases where our contracts with customers contain multiple performance obligations, the contract transaction price is allocated on a relative standalone selling price basis. We typically determine standalone selling price based on observable selling prices of our products and services. Variable Consideration We record revenue from sales at the net sales price, which is the transaction price, including estimates of variable consideration when applicable. Certain of our customers may be entitled to receive credits and in limited circumstances, refunds, if service level commitments are not met. We have not historically experienced significant incidents affecting the ability to meet these service level commitments and any estimated refunds related to these agreements have not been material. Sales through our channel network of distributors and resellers are generally discounted as compared to the price that we would sell to an end user. Revenue for sales through our channel network is recorded net of any distributor or reseller margin. Deferred Commissions Sales commissions, including related fringe benefit costs, are considered to be incremental costs of obtaining a contract. Sales commissions on initial sales are not commensurate with sales commissions on contract renewals and therefore are recognized over an estimated period of benefit, which ranges between three and four years for subscription arrangements and five years for perpetual license arrangements. We estimate the period of benefit based on the expected contract term including renewal periods, the lifecycle of our technology and other factors. Sales commissions on contract renewals are capitalized and amortized ratably over the contract term as part of sales and marketing expense, with the exception of contracts with renewal periods that are one year or less, in which case the incremental costs are expensed as incurred.
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all highly liquid financial instruments with an original maturity of three months or less when purchased to be cash equivalents.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair value is defined as the price that would be received from selling an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. We apply fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. We measure cash and cash equivalents and short-term investments at fair value using a fair value hierarchy of inputs. We approximate fair value by using the carrying amounts for accounts receivable, accounts payable and accrued expenses due to their short-term nature.
Investments	Investments Short-term Investments Our short-term investments include asset backed securities, certificates of deposit, commercial paper, corporate and Yankee bonds, and U.S. treasury and agency obligations. Our investments are classified as available-for-sale and recorded at fair value, with unrealized gains and losses reported in accumulated other comprehensive income (loss) within stockholders’ equity. We classify investments with original maturities of less than 90 days as cash and cash equivalents. Investments with original maturities greater than 90 days, including those we do not currently intend on selling within the next twelve months, are classified as short-term investments as they are available for use in our operations. We evaluate potential impairments of available-for-sale debt securities due to credit-related and non-credit-related factors, including market risk, and if it is more-likely-than-not that we would have to sell the security before the recovery of the amortized cost basis. Identified credit-related impairments would be recognized as a charge in the statement of operations. Other Investments Our investments in privately held companies consist of preferred stock, convertible notes and non-marketable simple agreements for future equity ("SAFE") investments. We have elected to apply the measurement alternative and record these other investments at cost, less any impairment, plus or minus observable price changes for similar investments of the same issuer. Gains or losses on other investments are recognized in other expense, net on our consolidated statements of operations. Other investments are included in other assets on our consolidated balance sheets.
Accounts Receivable	Accounts Receivable Accounts receivable are recorded at the invoiced amount, less an allowance for doubtful accounts, and do not bear interest. We maintain an allowance for doubtful accounts at an amount estimated to be sufficient to cover the risk of collecting less than full payment of the receivables. At each balance sheet date, we evaluate our receivables and assess the allowance for doubtful accounts based on specific customer collection issues and historical write-off trends. Our allowance for doubtful accounts reflects our best estimate of expected future credit losses. We consider various factors that may impact our ability to collect on accounts receivable, including our historical collection experience, age of accounts receivable balances, current conditions, reasonable and supportable forecasts of future economic conditions, as well as other factors, however, these estimates may change and future credit losses may differ from our estimates. Expected credit losses from accounts receivable are recognized as expense in our statement of operations.
Property and Equipment, net	Property and Equipment, net Property and equipment, net is stated at historical cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets: three years for computer software and equipment and five years for furniture and fixtures. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful lives of the assets or the terms of the respective leases. Repairs and maintenance costs are expensed as incurred.
Leases	Leases We determine if an arrangement contains a lease and the classification of that lease, if applicable, at inception. We have elected to not recognize a lease liability or right-of-use ("ROU") asset for short-term leases (leases with a term of twelve months or less). For contracts with lease and non-lease components, we have elected to not allocate the contract consideration, and account for the lease and non-lease components as a single lease component. Additionally, we enter into arrangements to use shared office spaces and other facilities, and have determined that these arrangements do not contain leases as we do not have the right to use an identified asset. Operating leases are included in operating lease ROU assets, operating lease liabilities and operating lease liabilities (net of current portion) in our consolidated balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments under the lease. Operating lease ROU assets and liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. The implicit rate within our operating leases is generally not determinable and we use our incremental borrowing rate at the lease commencement date to determine the present value of lease payments. The determination of our incremental borrowing rate requires judgment. We determine our incremental borrowing rate for each lease using our current borrowing rate, adjusted for various factors including level of collateralization, term and currency to align with the terms of the lease. The operating lease ROU asset also includes any lease prepayments, offset by lease incentives. Certain of our leases include options to extend or terminate the lease. An option to extend the lease is considered in connection with determining the ROU asset and lease liability when it is reasonably certain we will exercise that option. An option to terminate is considered unless it is reasonably certain we will not exercise the option. Lease expense for lease payments is recognized on a straight-line basis over the term of the lease. Any sublease income is recorded as a reduction of lease expense.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets We evaluate our long-lived assets for impairment whenever events or changes in circumstance indicate that the carrying amount may not be fully recoverable. Recoverability of the long-lived assets is measured by a comparison of the carrying amount of the assets to future undiscounted net cash flows expected to be generated by the assets. If such assets are considered to be impaired, the impairment to be recognized is measured as the excess of the carrying amount over the fair value.
Business Combinations	Business Combinations We account for business combinations by recognizing the fair value of acquired assets and liabilities. The excess purchase consideration over the fair value of acquired assets and liabilities is recorded as goodwill. When determining the fair value of assets acquired and liabilities assumed, a non-recurring Level 3 fair value measurement, we make estimates and assumptions, especially with respect to intangible assets such as identified acquired technology and trade names. We generally determine the fair value of acquired technology using the multi-period excess earnings method, a form of the income approach. However in certain situations we may use the cost approach. Estimates in valuing identifiable intangible assets include, but are not limited to, projected revenue growth rates, obsolescence projections and an appropriate discount rate. Our estimate of fair value is based upon assumptions we believe to be reasonable, but which are inherently uncertain and, as a result, actual results may differ from estimates. During the measurement period, we may make adjustments to the fair value of assets acquired and liabilities assumed, with offsetting adjustments to goodwill. Any adjustments made after the measurement period will be reflected in the consolidated statements of operations. Acquisition-related costs are expensed as incurred.
Goodwill	Goodwill The excess of the purchase consideration over the fair value of acquired assets and liabilities is recorded as goodwill. We perform our annual impairment assessment on October 1, or more frequently, when events or circumstances indicate impairment may have occurred. We operate as one reporting unit and have elected to first assess qualitative factors to determine whether it is more likely than not that the fair value of the Company as a whole is less than its carrying amount, including goodwill. The qualitative assessment includes an evaluation of relevant events and circumstances, including macroeconomic, industry and market conditions, our overall financial performance, and trends in the value of our common stock. During the periods presented, there were no indications of impairment and it was not more likely than not that goodwill was impaired.
Common Stock and Treasury Stock	Common Stock Our Amended and Restated Certificate of Incorporation authorized 500,000,000 shares of common stock and 10,000,000 shares of preferred stock. There were no shares of preferred stock issued or outstanding at December 31, 2025 or 2024. The voting, dividend, and liquidation rights of common stockholders are subject to, and qualified by, the rights of preferred stockholders. The common stockholders are entitled to receive dividends when, as and if, declared by the Board of Directors, subject to preferential dividend rights of preferred stockholders. Upon dissolution or liquidation, our common stockholders will be entitled to receive all assets available for distribution to stockholders, subject to any preferential rights of preferred stockholders. Treasury Stock In November 2023, our Board of Directors authorized the repurchase of up to $100 million of our common stock. In October 2024 and July 2025, our Board of Directors increased the repurchase authorization by $200 million and $250 million, respectively. We account for purchases of treasury stock under the cost method. Shares are held for future issuance and not retired.
Stock-Based Compensation	Stock-Based Compensation Stock-based compensation expense related to restricted stock units ("RSUs"), purchase rights issued under our 2018 Employee Stock Purchase Plan ("2018 ESPP"), stock options and restricted stock is calculated based on the fair value of the awards granted and is recognized on a straight-line basis over the requisite service period, which is generally two to four years. Our performance stock units ("PSUs") vest over a period of 4 years and are subject to defined performance and service conditions. Our PSUs are expensed using the accelerated attribution method. We account for forfeitures as they occur. The fair value of RSUs, PSUs and restricted stock is based on the market price of our common stock on the date of grant. The fair value of 2018 ESPP purchase rights is estimated on the grant date using the Black-Scholes option pricing model, which requires us to make assumptions and judgments, including the expected term, expected volatility, and risk-free interest rates. We use the market price of our common stock at the date of grant.
Advertising	Advertising Advertising costs are expensed as they are incurred.
Software Development Costs	Software Development Costs Research and development costs to develop software to be sold, leased or marketed are expensed as incurred up to the point of technological feasibility for the related software product. We have not capitalized development costs for software to be sold, leased or marketed to date, as the software development process is essentially completed concurrent with the establishment of technological feasibility. As such, these costs are expensed as incurred and recognized in research and development costs in the consolidated statements of operations. Software developed for internal use, with no substantive plans to market such software at the time of development, are capitalized and included in property and equipment, net in the consolidated balance sheets. Costs incurred during the preliminary planning and evaluation and post implementation stages of the project are expensed as incurred. Costs incurred during the application development stage of the project are capitalized.
Restructuring	Restructuring Restructuring expenses consist of non-ordinary course severance, employee related benefits and other charges to reorganize business operations. In 2025, we incurred $3.1 million of restructuring expense related to non-ordinary course severance and employee related benefits in order to realign departments. In 2024, the $6.1 million of restructuring expense consisted of $4.5 million of non-cash impairment of leasehold improvements and furniture and fixtures that was recorded in connection with the sublease of a portion of our headquarters and $1.5 million in non-ordinary course severance and employee related benefits related to the optimization of our go-to-market efforts, including reducing our reliance on sales specialists and streamlining layers of management.
Net Loss per Share	Net Loss per Share We calculate basic net loss per share by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by giving effect to all potentially dilutive common stock equivalents in the period, including unvested RSUs, PSUs, stock options, unvested restricted shares and shares to be issued under our 2018 ESPP. As we have reported losses for all periods presented, all potentially dilutive securities have been excluded from the calculation of diluted net loss per share as their effect would be antidilutive.
Segment Information	Segment Information We operate as one operating segment as our Co-Chief Executive Officers, who are our chief operating decision makers ("CODMs"), review financial information on a consolidated basis for purposes of making operating decisions, allocating resources, and evaluating financial performance.
Income Taxes	Income Taxes Income taxes are accounted for under the asset and liability method. This method requires recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the tax basis of existing assets and liabilities, net operating loss carryforwards, and tax credit carryforwards. We have elected to treat taxes related to GILTI as a period cost. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax assets will not be realized. We recognize tax benefits from an uncertain tax position if it is more likely than not to be sustained upon audit by the relevant taxing authority. Interest and penalties associated with such uncertain tax positions are classified as a component of income tax expense.
Recently Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements	Recently Adopted Accounting Pronouncements In December 2023, the Financial Accounting Standards Board ("FASB") issued ASU 2023-09 - Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires public entities to provide greater disaggregation within the annual rate reconciliation. The guidance also requires disaggregating the annual disclosure of income taxes paid, net of refunds received. We have adopted ASU 2023-09 for the year ended December 31, 2025, and have applied the new disclosure requirements prospectively to the current annual period. Prior period disclosures have not been adjusted. Recently Issued Accounting Pronouncements In November 2024, the FASB issued ASU 2024-03 - Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires public entities to disclose, on an annual and interim basis, disaggregated information about certain income statement expense line items. The ASU also requires disclosure of the total amount of selling expenses recognized in continuing operations on an annual and interim basis and disclosure of the definition of selling expenses. The guidance is effective beginning January 1, 2027 on a prospective basis, with a retrospective option, and interim reporting periods beginning on January 1, 2028. Early adoption is permitted. We are currently evaluating the impact of adopting this standard on our consolidated financial statements and disclosures. In July 2025, the FASB issued ASU 2025-05 - Measurement of Credit Loss for Accounts Receivable and Contract Assets, which provides a practical expedient for the calculation of current expected credit losses for accounts receivable and contract assets, allowing entities to assume that current conditions as of the balance sheet date will persist through the forecast period. The guidance is effective beginning January 1, 2026 on a prospective basis. We are currently evaluating the impact of adopting this standard on our consolidated financial statements and disclosures. In September 2025, the FASB issued ASU 2025-06 - Targeted Improvements to the Accounting for Internal-Use Software, which updates the requirements for capitalization of internal-use software, removing all references to project stages and clarifies the threshold entities apply to begin capitalizing costs. The guidance is effective beginning January 1, 2028 using a prospective, modified retrospective or full retrospective approach. We are currently evaluating the impact of adopting this standard on our consolidated financial statements and disclosures

Benefit Plans	12 Months Ended
Benefit Plans	Dec. 31, 2025
Retirement Benefits [Abstract]
Benefit Plans	Benefit Plans We maintain a defined contribution 401(k) plan for our U.S. employees, where company-matched contributions are fully vested. Additional contributory plans are in effect internationally, including in France, Ireland and the U.K. Contribution expense for such plans was $10.1 million, $9.8 million and $10.3 million in 2025, 2024 and 2023, respectively.

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for Doubtful Accounts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 525	$ 470	$ 1,400
Additions Charged to Costs and Expenses	586	545	593
Deductions	(455)	(490)	(1,523)
Balance at End of Year	$ 656	$ 525	$ 470

Stock-Based Compensation - Schedule of Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Number of Shares
Number of shares outstanding, beginning of period (in shares)	4,051	5,095	5,485
Number of shares, exercised (in shares)	(2,646)	(1,044)	(387)
Number of shares, forfeited/canceled (in shares)	(2)	0	(3)
Number of shares outstanding, end of period (in shares)	1,403	4,051	5,095	5,485
Number of shares exercisable (in shares)	1,403
Weighted Average Exercise Price
Weighted average exercise price, outstanding, beginning of period (in usd per share)	$ 9.26	$ 8.95	$ 8.96
Weighted average exercise price, exercised (in usd per share)	7.44	7.72	9.05
Weighted average exercise price, forfeited/canceled (in usd per share)	6.16	0	10.97
Weighted average exercise price, outstanding, end of period (in usd per share)	12.70	$ 9.26	$ 8.95	$ 8.96
Weighted average exercise price, exercisable (in usd per share)	$ 12.70
Weighted-Average Remaining Contractual Term/ Aggregate Intrinsic Value
Weighted average remaining contractual term (in years), outstanding	2 years	2 years 7 months 6 days	3 years 6 months	4 years 6 months
Weighted average remaining contractual term (in years), exercisable	2 years
Aggregate intrinsic value, outstanding, beginning of period	$ 122,024	$ 189,108	$ 160,135
Aggregate intrinsic value, exercised	67,124	38,831	13,364
Aggregate intrinsic value, outstanding, end of period	15,210	$ 122,024	$ 189,108	$ 160,135
Aggregate intrinsic value, exercisable	$ 15,210
Stock options
Weighted-Average Remaining Contractual Term/ Aggregate Intrinsic Value
Share-based compensation, shares withheld to cover costs (in shares)	485
Shares repurchased to cover taxes (in shares)	40

Net Loss Per Share - Schedule of Potentially Dilutive Securities (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	11,129	11,945	13,252
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	8,994	7,209	7,343
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	1,403	4,051	5,095
Shares to be issued under the 2018 ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	268	198	245
PSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	279	300	258
Restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	185	187	311

Stock-Based Compensation - ESPP Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash proceeds	$ 15,482	$ 16,262	$ 16,224
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock purchased (in shares)	519,100	498,900	506,400
Weighted-average price (in usd per share)	$ 29.82	$ 32.60	$ 32.04

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Dec. 31, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (36,118)	$ (36,301)	$ (78,284)
Other comprehensive income, net of tax:
Unrealized gains on available-for-sale securities	69	280	1,389
Other comprehensive income	69	280	1,389
Comprehensive loss	$ (36,049)	$ (36,021)	$ (76,895)

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Acquisitions, Goodwill and Intangible Assets - Schedule of Future Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
2026	$ 26,945
2027	24,915
2028	21,872
2029	18,252
2030	14,522
Thereafter	8,790
Net Carrying Amount	$ 115,296	$ 94,461

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 187,762	$ 328,647
Short-term investments	214,419	248,547
Accounts receivable (net of allowance for doubtful accounts of $656 and $525 at December 31, 2025 and 2024, respectively)	279,150	258,734
Deferred commissions	52,914	51,791
Prepaid expenses and other current assets	39,339	53,026
Total current assets	773,584	940,745
Property and equipment, net	40,062	39,265
Deferred commissions (net of current portion)	71,715	67,914
Operating lease right-of-use assets	35,558	45,139
Acquired intangible assets, net	115,296	94,461
Goodwill	697,886	541,292
Other assets	13,566	13,303
Total assets	1,747,667	1,742,119
Current liabilities:
Accounts payable and accrued expenses	21,889	19,981
Accrued compensation	69,166	55,784
Deferred revenue	706,866	650,372
Operating lease liabilities	9,596	6,801
Other current liabilities	5,432	5,154
Total current liabilities	812,949	738,092
Deferred revenue (net of current portion)	192,410	182,815
Term loan, net of issuance costs (net of current portion)	354,209	356,705
Operating lease liabilities (net of current portion)	50,877	56,224
Other liabilities	10,846	8,329
Total liabilities	1,421,291	1,342,165
Stockholders’ equity:
Common stock (par value: $0.01; 500,000 shares authorized, 129,046 and 122,371 shares issued at December 31, 2025 and 2024, respectively)	1,290	1,224
Additional paid-in capital	1,586,727	1,374,659
Treasury stock (at cost: 10,596 and 2,673 shares at December 31, 2025 and 2024, respectively)	(364,574)	(114,911)
Accumulated other comprehensive income	387	318
Accumulated deficit	(897,454)	(861,336)
Total stockholders’ equity	326,376	399,954
Total liabilities and stockholders’ equity	$ 1,747,667	$ 1,742,119

Income Taxes

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Income Taxes

U.S. and foreign components of the loss before income taxes were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
U.S. income (loss)	$	19,988	$	25,787	$	(26,249)
Foreign loss	(42,921)		(44,673)		(41,152)
Total loss before income taxes	$	(22,933)	$	(18,886)	$	(67,401)

The components of the provision for income taxes were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Current
Federal	$	5	$	3,278	$	5
State	300		454		708
Foreign	11,432		13,036		9,930
Total current tax expense	11,737		16,768		10,643
Deferred
Federal	1,095		580		293
State	676		227		239
Foreign	(323)		(160)		(292)
Total deferred tax expense	1,448		647		240
Total provision for income taxes	$	13,185	$	17,415	$	10,883

Our provision for income taxes in 2024 included expense of $3.3 million related to Base Erosion and Anti-Abuse Tax, or BEAT, and $1.2 million of expense related to restructuring of our operations in Israel through intercompany

transactions, neither of which were applicable in 2025 or 2023.

The items accounting for the difference between income taxes computed at the federal statutory rate and our effective tax rate after the adoption of ASU 2023-09 were as follows:


	Year Ended December 31, 2025
(dollars in thousands)	Amount		Percent
U.S. federal statutory tax rate	$	(4,816)	21.0	%
State and local income tax, net of federal (national) income tax effect(1)	916		(4.0)
Foreign tax effects
Brazil
Foreign withholding taxes	2,438		(10.6)
Colombia
Foreign withholding taxes	1,181		(5.1)
Israel
Federal statutory tax rate difference	(1,219)		5.3
Currency remeasurement	(4,732)		20.6
Changes in valuation allowances	16,206		(70.7)
Stock compensation	1,409		(6.1)
Other	858		(3.7)
Ireland
Currency remeasurement	(5,588)		24.4
Changes in valuation allowances	4,321		(18.8)
Other	(430)		1.9
France	2,197		(9.6)
Other foreign jurisdictions	3,096		(13.6)
Effect of cross border tax laws
Foreign branch loss	(7,850)		34.2
Legal entity reorganization	(3,032)		13.2
Other	(23)		0.1
Nontaxable or nondeductible items
Stock compensation	2,300		(10.0)
Other	1,502		(6.5)
Tax credits
Research credits	(3,282)		14.3
Changes in unrecognized tax benefits	359		(1.6)
Changes in valuation allowances	7,374		(32.2)
Total tax expense	$	13,185	(57.5)	%

_______________

(1) State and local taxes in California, Texas, Illinois, and New York make up the majority of the tax effect.

The items accounting for the difference between income taxes computed at the federal statutory rate and our effective tax rate were as follows for years prior to our adoption of ASU 2023-09:


	Year Ended December 31,
	2024		2023
U.S. federal statutory tax rate	21.0	%	21.0	%
State and local taxes	(0.9)		1.9
Research and development tax credit	25.5		8.4
Stock-based compensation	(13.6)		(11.3)

Foreign tax rate differential	35.4		(1.7)
Change in valuation allowance	(81.7)		(34.0)
Gain on intercompany sale, net of losses	(2.1)		(1.4)


Foreign withholding tax	(24.8)		(5.4)
Foreign deferred FX remeasurement	(20.5)		9.0
GILTI	(1.7)		—
BEAT	(17.6)		—
Transaction costs	(3.6)		(1.0)
Non-deductible expenses	(5.3)		(1.5)
Other	(2.3)		(0.3)
Effective tax rate	(92.2)	%	(16.3)	%

We maintain a valuation allowance on certain U.S. federal, state and foreign deferred tax assets as the realization of our deferred tax assets is dependent upon future earnings, if any, the timing and amount of which are uncertain. In 2025, our valuation allowance increased by $35.1 million, primarily related to our 2025 loss before income taxes and U.S. R&D tax credits.

The components of the deferred tax assets and liabilities were as follows:


	December 31,
(in thousands)	2025		2024
Deferred tax assets:
Net operating losses	$	187,353	$	153,781
Deferred revenue	21,706		21,949
Stock-based compensation	22,571		21,802
Tax credits	31,692		28,420
Leases	14,307		14,936
Accrued compensation	4,104		3,364
Interest expense	969		2,171
Capitalized research and development	34,621		32,441
Other	3,221		3,219
Total deferred tax assets	320,544		282,083
Valuation allowance	(254,880)		(219,773)
Net deferred tax assets	65,664		62,310
Deferred tax liabilities:
Deferred commissions	(24,212)		(23,623)
Property and equipment	(11,071)		(12,821)
Intangible assets	(32,827)		(27,302)
Other	(1,213)		(773)
Total deferred tax liabilities	(69,323)		(64,519)
Net deferred tax liabilities	$	(3,659)	$	(2,209)

At December 31, 2025, we had net operating loss (“NOL”) carryforwards for federal, state and foreign tax purposes of $378.4 million, $218.9 million, and $618.7 million, respectively, which will begin to expire in 2030, as well as $31.7 million of federal, state and foreign research and development tax credits, foreign tax credits, minimum tax credits and miscellaneous state tax credits. The federal research and development and foreign tax credits will begin to expire in 2032 if unutilized.

We are currently subject to the annual limitation under Sections 382 and 383 of the Internal Revenue Code. We will not be precluded from realizing the NOL carryforward and tax credits but may be limited in the amount we could utilize in any given tax year in the event that the federal and state taxable income will exceed the limitation imposed by Section 382. The amount of the annual limitation is determined based on our value immediately prior to the ownership change. Subsequent ownership changes may further affect the limitation in future years.

At December 31, 2025 and 2024, the total amount of gross unrecognized tax benefits was $9.1 million and $8.5 million, respectively, which, if recognized, would impact our effective tax rate by approximately $0.4 million and $0.2 million in 2025 and 2024, respectively. Interest and penalties associated with uncertain tax positions recognized as a component of income tax expense were immaterial in 2025, 2024 and 2023.

The change in gross unrecognized tax benefits, excluding accrued interest, were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Unrecognized tax benefits at the beginning of the period	$	8,538	$	8,297	$	7,820
Additions for tax positions in the current year	151		329		417
Increase in prior year positions	385		—		60
Decrease in prior year positions	(18)		(88)		—
Acquisitions	—		—		—
Unrecognized tax benefits at the end of the period	$	9,056	$	8,538	$	8,297

We file income tax returns in the United States, including various state jurisdictions. Our subsidiaries file income tax returns in various foreign jurisdictions. Tax years after 2014 remain open to examination by the major taxing jurisdictions in which we are subject to tax. At December 31, 2025, we were not under examination for income tax audits by the Internal Revenue Service. We are currently under tax examination in France for tax years 2019 through 2022.

Depending on the jurisdiction, distributions of earnings could be subject to withholding taxes at rates applicable to the distributing jurisdiction. As we intend to continue to reinvest the earnings of foreign subsidiaries indefinitely, we have not provided for a U.S. income tax liability and foreign withholding taxes on undistributed foreign earnings of foreign subsidiaries. It is not practicable for us to determine the amount of unrecognized tax expense on these reinvested foreign earnings.

On July 4, 2025, U.S. legislation commonly known as the One Big Beautiful Bill Act ("OBBBA") was enacted, which includes permanent extensions of expiring and expired federal income tax provisions, including immediate expensing of domestic research and development expenses, as well as certain prospective international tax changes. The application of the OBBBA did not have a material impact on our financial statements for the year ended December 31, 2025.

The amount of cash income taxes paid, net of refunds received were as follows:


(in thousands)	Year Ended December 31, 2025
U.S. federal	$	(29)
U.S. state and local	698
Foreign
Brazil	3,860
Colombia	1,708
Israel	(1,249)
Singapore	998
Other	5,815
Total	$	11,801

- Definition

The entire disclosure for income tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
-Subparagraph (SAB Topic 6.I.5.Q1)
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Income Taxes - Schedule of Income Taxes Paid Net of Refunds Received (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Examination [Line Items]
U.S. federal	$ (29)
U.S. state and local	698
Total	11,801	$ 15,180	$ 8,981
Brazil
Income Tax Examination [Line Items]
Foreign	3,860
Colombia
Income Tax Examination [Line Items]
Foreign	1,708
Israel
Income Tax Examination [Line Items]
Foreign	(1,249)
Singapore
Income Tax Examination [Line Items]
Foreign	998
Other
Income Tax Examination [Line Items]
Foreign	$ 5,815

Leases

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Leases

We have operating leases for office facilities. Our leases have remaining terms of under one year to just over six years, some of which include one or more options to renew, with renewal terms up to five years and one of which includes an option to terminate the lease within the next five years.

The components of lease expense were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Operating lease cost(1)	$	9,865	$	8,102	$	7,592

_______________

(1) Excludes sublease income.

In June 2024, we executed a sublease of a portion of our corporate headquarters through February 2032 and recognized $4.5 million of restructuring expense related to the associated impairment of leasehold improvements and furniture and fixtures.

Sublease income, which is recorded as a reduction of rent expense, was $1.6 million and $0.8 million in 2025 and 2024, respectively.

Rent expense for short-term leases was not material in 2025, 2024 and 2023.

Supplemental information related to leases was as follows:


	December 31,
	2025	2024
Operating leases
Weighted average remaining lease term	5.7 years	6.5 years
Weighted average discount rate	6.2%	6.1%


	Year Ended December 31,
(in thousands)	2025		2024		2023
ROU assets obtained in exchange for lease obligations
Operating leases	$	1,832	$	10,143	$	1,234

Maturities of operating lease liabilities at December 31, 2025 were as follows:


(in thousands)
Year ending December 31,
2026	$	13,006
2027	12,403
2028	11,667
2029	11,611
2030	11,538
Thereafter	11,703
Total lease payments	71,928
Less: Imputed interest	(11,455)
Total	$	60,473

Operating lease payments in the table above do not include $1.7 million, $1.8 million, $1.9 million, $1.9 million, $2.0 million and $2.5 million of sublease payments we expect to receive in 2026, 2027, 2028, 2029, 2030 and thereafter, respectively.

In January 2026, we entered into a new lease in Ireland with a ten year term and expected future lease payments of $12.9 million.

Leases

The components of lease expense were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Operating lease cost(1)	$	9,865	$	8,102	$	7,592

_______________

(1) Excludes sublease income.

Sublease income, which is recorded as a reduction of rent expense, was $1.6 million and $0.8 million in 2025 and 2024, respectively.

Rent expense for short-term leases was not material in 2025, 2024 and 2023.

Supplemental information related to leases was as follows:


	December 31,
	2025	2024
Operating leases
Weighted average remaining lease term	5.7 years	6.5 years
Weighted average discount rate	6.2%	6.1%


	Year Ended December 31,
(in thousands)	2025		2024		2023
ROU assets obtained in exchange for lease obligations
Operating leases	$	1,832	$	10,143	$	1,234

Maturities of operating lease liabilities at December 31, 2025 were as follows:


(in thousands)
Year ending December 31,
2026	$	13,006
2027	12,403
2028	11,667
2029	11,611
2030	11,538
Thereafter	11,703
Total lease payments	71,928
Less: Imputed interest	(11,455)
Total	$	60,473

In January 2026, we entered into a new lease in Ireland with a ten year term and expected future lease payments of $12.9 million.

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2025
Audit Information [Abstract]
Auditor Name	Ernst & Young LLP
Auditor Location	Baltimore, Maryland
Auditor Firm ID	42

Leases - Schedule of Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Operating lease, cost	$ 9,865	$ 8,102	$ 7,592

Business and Summary of Significant Accounting Policies - Software Development Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Capitalized development costs of internal use software	$ 5.4	$ 8.2	$ 8.8
Capitalized stock-based compensation	$ 1.1	$ 1.7	$ 1.7

Revenue - Schedule of Future Estimated Revenue Related To Unsatisfied Performance Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Remaining performance obligations, short-term	$ 748,616	$ 660,647
Remaining performance obligations, long-term	312,449	206,879
Remaining performance obligations	$ 1,061,065	$ 867,526

Commitments and Contingencies (Details) € in Millions	Dec. 31, 2025 USD ($)	Dec. 31, 2025 EUR (€)	Jul. 31, 2024 USD ($)	Dec. 31, 2023 EUR (€)	Jul. 31, 2021 USD ($)
Line of Credit Facility [Line Items]
Amount of purchase obligation spent \| €		€ 14.9
Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity					$ 15,000,000.0
Letter of Credit \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 5,700,000
Restricted cash	5,500,000
Microsoft
Line of Credit Facility [Line Items]
Purchase obligation \| €				€ 28.5
Amazon Web Services (AWS)
Line of Credit Facility [Line Items]
Purchase obligation			$ 230,300,000
Amount of purchase obligation spent	$ 31,300,000
Purchase obligation, year 1			59,700,000
Purchase obligation, year 2			77,600,000
Purchase obligation, year 3			$ 93,000,000.0

Business and Summary of Significant Accounting Policies - Common Stock (Details) - shares	Dec. 31, 2025	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Common stock, authorized (in shares)	500,000,000	500,000,000
Preferred stock, authorized (in shares)	10,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0

Fair Value Measurements

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Fair Value Measurements

We measure certain financial instruments at fair value using a fair value hierarchy. In the hierarchy, assets are classified based on the lowest level inputs used in valuation into the following categories:

•Level 1 — Quoted prices in active markets for identical assets and liabilities;

•Level 2 — Observable inputs including quoted market prices for similar assets and liabilities in active markets, quoted prices for identical assets and liabilities in inactive markets, or inputs that are corroborated by observable market data; and

•Level 3 — Unobservable inputs.

The following tables summarize assets that are measured at fair value on a recurring basis:


	December 31, 2025
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents
Money market funds	$	59,760	$	—	$	—	$	59,760

Total cash equivalents	$	59,760	$	—	$	—	$	59,760

Short-term investments
Commercial paper	$	—	$	5,066	$	—	$	5,066
Corporate bonds	—		94,894		—		94,894
Asset backed securities	—		17,364		—		17,364


Yankee bonds	—		13,293		—		13,293
U.S. Treasury and agency obligations	—		83,802		—		83,802
Total short-term investments	$	—	$	214,419	$	—	$	214,419


	December 31, 2024
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents
Money market funds	$	190,750	$	—	$	—	$	190,750
Total cash equivalents	$	190,750	$	—	$	—	$	190,750

Short-term investments
Commercial paper	$	—	$	41,604	$	—	$	41,604
Corporate bonds	—		95,410		—		95,410
Asset backed securities	—		30,796		—		30,796


Yankee bonds	—		14,007		—		14,007
U.S. Treasury and agency obligations	—		66,730		—		66,730
Total short-term investments	$	—	$	248,547	$	—	$	248,547

Other Investments

Our investments in privately held securities were as follows:


	December 31,
(in thousands)	2025		2024
Equity securities	$	6,702	$	6,701
Debt and other securities	1,000		1,871
Total other investments	$	7,702	$	8,572

Other investments are classified as Level 3 as they do not have readily determinable market values.

We received $0.9 million and $3.5 million in proceeds from one of our SAFE investments in 2025 and 2024, respectively. Additionally in 2024, we recognized a $1.5 million gain on the conversion of our SAFE investment to an investment in preferred stock.

We did not have any liabilities measured and recorded at fair value on a recurring basis at December 31, 2025 and 2024.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
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-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Business and Summary of Significant Accounting Policies	12 Months Ended
Business and Summary of Significant Accounting Policies	Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Summary of Significant Accounting Policies	Business and Summary of Significant Accounting Policies Business Description Tenable Holdings, Inc. (the "Company," "we," "us," or "our") is the leading provider of exposure management solutions. Exposure management is an increasingly critical category that extends foundational vulnerability management capabilities to advance risk assessment and prioritization across the entire attack surface – from IT infrastructure and cloud environments to critical infrastructure and AI. We unify security visibility, insight and action across this attack surface, equipping modern organizations to quickly identify and close the cybersecurity gaps that erode business value, reputation and trust. Basis of Presentation The accompanying consolidated financial statements include the accounts of Tenable Holdings, Inc. and our wholly owned subsidiaries and have been prepared in conformity with United States generally accepted accounting principles ("GAAP"). All intercompany accounts and transactions have been eliminated in consolidation. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. These estimates include, but are not limited to, the estimated period of benefit for deferred commissions, the useful lives of long-lived assets, the fair value of acquired intangible assets, the valuation of stock-based compensation, the incremental borrowing rate for operating leases and the valuation of deferred tax assets and investments. We base these estimates on historical experience and on various other assumptions that we believe to be reasonable. Actual results could differ significantly from these estimates. Foreign Currency The functional currency for all of our foreign subsidiaries is the U.S. dollar. Assets and liabilities denominated in other currencies are remeasured into U.S. dollars at current exchange rates for monetary assets and liabilities and at historical exchange rates for non-monetary assets and liabilities. We bill our customers in U.S. dollars. Expenses incurred in non U.S. dollar currencies are remeasured into U.S. dollars when incurred. Remeasurement losses in currencies other than the functional currency were $1.6 million, $5.0 million and $3.1 million in 2025, 2024 and 2023, respectively, and are included as a component of other expense, net in the consolidated statements of operations. Revenue Recognition We recognize revenue in order to depict the transfer of promised goods or services to customers in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. To achieve this, we apply the following steps: •Identify the contract with a customer •Identify the performance obligations in the contract •Determine the transaction price •Allocate the transaction price to the performance obligations in the contract •Recognize revenue when or as performance obligations are satisfied In situations where we enter into a contractual arrangement that includes non-standard terms and conditions, such as acceptance provisions or options to purchase additional products and services, as well as contract modifications, we apply judgment in identifying and assessing the impact on revenue recognition. We generate revenue from subscription arrangements for software and cloud-based solutions, perpetual licenses, maintenance associated with perpetual licenses, and professional services and other revenue. We begin to recognize revenue when control of our software or services is transferred to the customer, which for sales made through distributors is concurrent with the transfer to the end user. Subscription Revenue Subscription arrangements generally have annual or multi-year contractual terms and allow customers to use our software or cloud solutions. For our software subscriptions that are dependent on ongoing software updates and the ability to identify the latest cybersecurity vulnerabilities, revenue is recognized ratably over the subscription term given the critical utility provided by the ongoing updates that are released throughout the contract period. When the critical utility of our software does not depend on ongoing updates, we recognize revenue attributable to the license at the time of delivery and the revenue attributable to the maintenance and support ratably over the contract period. Perpetual License and Maintenance Revenue Our perpetual licenses are generally sold with one or more years of maintenance that include ongoing software updates to identify the latest cybersecurity vulnerabilities, which provide critical utility to the software. We recognize perpetual license revenue over a five-year estimated economic life of the expected customer contract. Professional Services and Other Revenue Professional services and other revenue is primarily comprised of advisory services and training related to the deployment and optimization of our products. These services do not result in significant customization of our products. Professional services and other revenue is recognized as the services are performed. Contracts with Multiple Performance Obligations In cases where our contracts with customers contain multiple performance obligations, the contract transaction price is allocated on a relative standalone selling price basis. We typically determine standalone selling price based on observable selling prices of our products and services. Variable Consideration We record revenue from sales at the net sales price, which is the transaction price, including estimates of variable consideration when applicable. Certain of our customers may be entitled to receive credits and in limited circumstances, refunds, if service level commitments are not met. We have not historically experienced significant incidents affecting the ability to meet these service level commitments and any estimated refunds related to these agreements have not been material. Sales through our channel network of distributors and resellers are generally discounted as compared to the price that we would sell to an end user. Revenue for sales through our channel network is recorded net of any distributor or reseller margin. Cash and Cash Equivalents We consider all highly liquid financial instruments with an original maturity of three months or less when purchased to be cash equivalents. At December 31, 2025 and 2024, cash and cash equivalents included $8.7 million and $8.2 million, respectively, of restricted cash related to collateral for outstanding letters of credit and an operating lease. Fair Value of Financial Instruments Fair value is defined as the price that would be received from selling an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. We apply fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. We measure cash and cash equivalents and short-term investments at fair value using a fair value hierarchy of inputs. We approximate fair value by using the carrying amounts for accounts receivable, accounts payable and accrued expenses due to their short-term nature. Investments Short-term Investments Our short-term investments include asset backed securities, certificates of deposit, commercial paper, corporate and Yankee bonds, and U.S. treasury and agency obligations. Our investments are classified as available-for-sale and recorded at fair value, with unrealized gains and losses reported in accumulated other comprehensive income (loss) within stockholders’ equity. We classify investments with original maturities of less than 90 days as cash and cash equivalents. Investments with original maturities greater than 90 days, including those we do not currently intend on selling within the next twelve months, are classified as short-term investments as they are available for use in our operations. We evaluate potential impairments of available-for-sale debt securities due to credit-related and non-credit-related factors, including market risk, and if it is more-likely-than-not that we would have to sell the security before the recovery of the amortized cost basis. Identified credit-related impairments would be recognized as a charge in the statement of operations. Other Investments Our investments in privately held companies consist of preferred stock, convertible notes and non-marketable simple agreements for future equity ("SAFE") investments. We have elected to apply the measurement alternative and record these other investments at cost, less any impairment, plus or minus observable price changes for similar investments of the same issuer. Gains or losses on other investments are recognized in other expense, net on our consolidated statements of operations. Other investments are included in other assets on our consolidated balance sheets. Accounts Receivable Accounts receivable are recorded at the invoiced amount, less an allowance for doubtful accounts, and do not bear interest. We maintain an allowance for doubtful accounts at an amount estimated to be sufficient to cover the risk of collecting less than full payment of the receivables. At each balance sheet date, we evaluate our receivables and assess the allowance for doubtful accounts based on specific customer collection issues and historical write-off trends. Our allowance for doubtful accounts reflects our best estimate of expected future credit losses. We consider various factors that may impact our ability to collect on accounts receivable, including our historical collection experience, age of accounts receivable balances, current conditions, reasonable and supportable forecasts of future economic conditions, as well as other factors, however, these estimates may change and future credit losses may differ from our estimates. Expected credit losses from accounts receivable are recognized as expense in our statement of operations. Deferred Commissions Sales commissions, including related fringe benefit costs, are considered to be incremental costs of obtaining a contract. Sales commissions on initial sales are not commensurate with sales commissions on contract renewals and therefore are recognized over an estimated period of benefit, which ranges between three and four years for subscription arrangements and five years for perpetual license arrangements. We estimate the period of benefit based on the expected contract term including renewal periods, the lifecycle of our technology and other factors. Sales commissions on contract renewals are capitalized and amortized ratably over the contract term as part of sales and marketing expense, with the exception of contracts with renewal periods that are one year or less, in which case the incremental costs are expensed as incurred. Property and Equipment, net Property and equipment, net is stated at historical cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets: three years for computer software and equipment and five years for furniture and fixtures. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful lives of the assets or the terms of the respective leases. Repairs and maintenance costs are expensed as incurred. Leases We determine if an arrangement contains a lease and the classification of that lease, if applicable, at inception. We have elected to not recognize a lease liability or right-of-use ("ROU") asset for short-term leases (leases with a term of twelve months or less). For contracts with lease and non-lease components, we have elected to not allocate the contract consideration, and account for the lease and non-lease components as a single lease component. Additionally, we enter into arrangements to use shared office spaces and other facilities, and have determined that these arrangements do not contain leases as we do not have the right to use an identified asset. Operating leases are included in operating lease ROU assets, operating lease liabilities and operating lease liabilities (net of current portion) in our consolidated balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments under the lease. Operating lease ROU assets and liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. The implicit rate within our operating leases is generally not determinable and we use our incremental borrowing rate at the lease commencement date to determine the present value of lease payments. The determination of our incremental borrowing rate requires judgment. We determine our incremental borrowing rate for each lease using our current borrowing rate, adjusted for various factors including level of collateralization, term and currency to align with the terms of the lease. The operating lease ROU asset also includes any lease prepayments, offset by lease incentives. Certain of our leases include options to extend or terminate the lease. An option to extend the lease is considered in connection with determining the ROU asset and lease liability when it is reasonably certain we will exercise that option. An option to terminate is considered unless it is reasonably certain we will not exercise the option. Lease expense for lease payments is recognized on a straight-line basis over the term of the lease. Any sublease income is recorded as a reduction of lease expense. Impairment of Long-Lived Assets We evaluate our long-lived assets for impairment whenever events or changes in circumstance indicate that the carrying amount may not be fully recoverable. Recoverability of the long-lived assets is measured by a comparison of the carrying amount of the assets to future undiscounted net cash flows expected to be generated by the assets. If such assets are considered to be impaired, the impairment to be recognized is measured as the excess of the carrying amount over the fair value. In 2024, we executed a sublease of our headquarters and recorded a $4.5 million impairment for furniture and fixtures and leasehold improvements. There was no impairment of long-lived assets in 2025 or 2023. Business Combinations We account for business combinations by recognizing the fair value of acquired assets and liabilities. The excess purchase consideration over the fair value of acquired assets and liabilities is recorded as goodwill. When determining the fair value of assets acquired and liabilities assumed, a non-recurring Level 3 fair value measurement, we make estimates and assumptions, especially with respect to intangible assets such as identified acquired technology and trade names. We generally determine the fair value of acquired technology using the multi-period excess earnings method, a form of the income approach. However in certain situations we may use the cost approach. Estimates in valuing identifiable intangible assets include, but are not limited to, projected revenue growth rates, obsolescence projections and an appropriate discount rate. Our estimate of fair value is based upon assumptions we believe to be reasonable, but which are inherently uncertain and, as a result, actual results may differ from estimates. During the measurement period, we may make adjustments to the fair value of assets acquired and liabilities assumed, with offsetting adjustments to goodwill. Any adjustments made after the measurement period will be reflected in the consolidated statements of operations. Acquisition-related costs are expensed as incurred. Goodwill The excess of the purchase consideration over the fair value of acquired assets and liabilities is recorded as goodwill. We perform our annual impairment assessment on October 1, or more frequently, when events or circumstances indicate impairment may have occurred. We operate as one reporting unit and have elected to first assess qualitative factors to determine whether it is more likely than not that the fair value of the Company as a whole is less than its carrying amount, including goodwill. The qualitative assessment includes an evaluation of relevant events and circumstances, including macroeconomic, industry and market conditions, our overall financial performance, and trends in the value of our common stock. During the periods presented, there were no indications of impairment and it was not more likely than not that goodwill was impaired. Common Stock Our Amended and Restated Certificate of Incorporation authorized 500,000,000 shares of common stock and 10,000,000 shares of preferred stock. There were no shares of preferred stock issued or outstanding at December 31, 2025 or 2024. The voting, dividend, and liquidation rights of common stockholders are subject to, and qualified by, the rights of preferred stockholders. The common stockholders are entitled to receive dividends when, as and if, declared by the Board of Directors, subject to preferential dividend rights of preferred stockholders. Upon dissolution or liquidation, our common stockholders will be entitled to receive all assets available for distribution to stockholders, subject to any preferential rights of preferred stockholders. Treasury Stock In November 2023, our Board of Directors authorized the repurchase of up to $100 million of our common stock. In October 2024 and July 2025, our Board of Directors increased the repurchase authorization by $200 million and $250 million, respectively. We account for purchases of treasury stock under the cost method. Shares are held for future issuance and not retired. Since the inception of the share repurchase program and through December 31, 2025, we have purchased a total of 10.6 million shares for $362.4 million. The remaining amount available under the share repurchase program was $187.6 million at December 31, 2025. In January 2026, our Board of Directors increased the repurchase authorization by $150 million. Stock-Based Compensation Stock-based compensation expense related to restricted stock units ("RSUs"), purchase rights issued under our 2018 Employee Stock Purchase Plan ("2018 ESPP"), stock options and restricted stock is calculated based on the fair value of the awards granted and is recognized on a straight-line basis over the requisite service period, which is generally two to four years. Our performance stock units ("PSUs") vest over a period of 4 years and are subject to defined performance and service conditions. Our PSUs are expensed using the accelerated attribution method. We account for forfeitures as they occur. The fair value of RSUs, PSUs and restricted stock is based on the market price of our common stock on the date of grant. The fair value of 2018 ESPP purchase rights is estimated on the grant date using the Black-Scholes option pricing model, which requires us to make assumptions and judgments, including the expected term, expected volatility, and risk-free interest rates. We use the market price of our common stock at the date of grant. Advertising Advertising costs are expensed as they are incurred. We incurred advertising costs of $19.8 million, $13.8 million and $16.2 million in 2025, 2024 and 2023, respectively, which are included in sales and marketing expense in the consolidated statements of operations. Software Development Costs Research and development costs to develop software to be sold, leased or marketed are expensed as incurred up to the point of technological feasibility for the related software product. We have not capitalized development costs for software to be sold, leased or marketed to date, as the software development process is essentially completed concurrent with the establishment of technological feasibility. As such, these costs are expensed as incurred and recognized in research and development costs in the consolidated statements of operations. Software developed for internal use, with no substantive plans to market such software at the time of development, are capitalized and included in property and equipment, net in the consolidated balance sheets. Costs incurred during the preliminary planning and evaluation and post implementation stages of the project are expensed as incurred. Costs incurred during the application development stage of the project are capitalized. In 2025, 2024 and 2023, we capitalized $5.4 million, $8.2 million and $8.8 million of development costs related to internal use software, including capitalized stock-based compensation of $1.1 million, $1.7 million, and $1.7 million, respectively. Restructuring Restructuring expenses consist of non-ordinary course severance, employee related benefits and other charges to reorganize business operations. In 2025, we incurred $3.1 million of restructuring expense related to non-ordinary course severance and employee related benefits in order to realign departments. In 2024, the $6.1 million of restructuring expense consisted of $4.5 million of non-cash impairment of leasehold improvements and furniture and fixtures that was recorded in connection with the sublease of a portion of our headquarters and $1.5 million in non-ordinary course severance and employee related benefits related to the optimization of our go-to-market efforts, including reducing our reliance on sales specialists and streamlining layers of management. Net Loss per Share We calculate basic net loss per share by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by giving effect to all potentially dilutive common stock equivalents in the period, including unvested RSUs, PSUs, stock options, unvested restricted shares and shares to be issued under our 2018 ESPP. As we have reported losses for all periods presented, all potentially dilutive securities have been excluded from the calculation of diluted net loss per share as their effect would be antidilutive. Segment Information We operate as one operating segment as our Co-Chief Executive Officers, who are our chief operating decision makers ("CODMs"), review financial information on a consolidated basis for purposes of making operating decisions, allocating resources, and evaluating financial performance. Income Taxes Income taxes are accounted for under the asset and liability method. This method requires recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the tax basis of existing assets and liabilities, net operating loss carryforwards, and tax credit carryforwards. We have elected to treat taxes related to GILTI as a period cost. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax assets will not be realized. We recognize tax benefits from an uncertain tax position if it is more likely than not to be sustained upon audit by the relevant taxing authority. Interest and penalties associated with such uncertain tax positions are classified as a component of income tax expense. Recently Adopted Accounting Pronouncements In December 2023, the Financial Accounting Standards Board ("FASB") issued ASU 2023-09 - Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires public entities to provide greater disaggregation within the annual rate reconciliation. The guidance also requires disaggregating the annual disclosure of income taxes paid, net of refunds received. We have adopted ASU 2023-09 for the year ended December 31, 2025, and have applied the new disclosure requirements prospectively to the current annual period. Prior period disclosures have not been adjusted. Recently Issued Accounting Pronouncements In November 2024, the FASB issued ASU 2024-03 - Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires public entities to disclose, on an annual and interim basis, disaggregated information about certain income statement expense line items. The ASU also requires disclosure of the total amount of selling expenses recognized in continuing operations on an annual and interim basis and disclosure of the definition of selling expenses. The guidance is effective beginning January 1, 2027 on a prospective basis, with a retrospective option, and interim reporting periods beginning on January 1, 2028. Early adoption is permitted. We are currently evaluating the impact of adopting this standard on our consolidated financial statements and disclosures. In July 2025, the FASB issued ASU 2025-05 - Measurement of Credit Loss for Accounts Receivable and Contract Assets, which provides a practical expedient for the calculation of current expected credit losses for accounts receivable and contract assets, allowing entities to assume that current conditions as of the balance sheet date will persist through the forecast period. The guidance is effective beginning January 1, 2026 on a prospective basis. We are currently evaluating the impact of adopting this standard on our consolidated financial statements and disclosures. In September 2025, the FASB issued ASU 2025-06 - Targeted Improvements to the Accounting for Internal-Use Software, which updates the requirements for capitalization of internal-use software, removing all references to project stages and clarifies the threshold entities apply to begin capitalizing costs. The guidance is effective beginning January 1, 2028 using a prospective, modified retrospective or full retrospective approach. We are currently evaluating the impact of adopting this standard on our consolidated financial statements and disclosures

Debt - Schedule of Maturities of Term Loan (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Debt Disclosure [Abstract]
2026	$ 3,750
2027	3,750
2028	352,500
Total	$ 360,000

Segment and Geographic Information

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Segment and Geographic Information

Segment Information

We operate as one operating segment. Our Co-Chief Executive Officers, our CODMs, review financial information on a consolidated basis for purposes of making operating decisions, allocating resources and evaluating financial performance. Our CODMs review cost of sales expense, sales and marketing expense, research and development expense and general and administrative expense to assess our significant segment expenses, and review income (loss) from operations and net income (loss) to assess our operating performance. Our CODMs also review total assets, as reported on our consolidated balance sheets. See our consolidated statement of operations for our significant segment expenses, loss from operations and net loss in the periods presented.

Geographic Information

Revenue by region, based on the address of the end user as specified in our subscription, license or service agreements, was as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
The Americas	$	610,996	$	558,068	$	500,512
Europe, Middle East and Africa	273,114		239,741		205,851
Asia Pacific	115,295		102,212		92,347
Revenue	$	999,405	$	900,021	$	798,710

Customers located in the United States accounted for 53%, 54% and 55% of revenue in 2025, 2024 and 2023, respectively. No other country accounted for 10% or more of revenue in the periods presented.

Our property and equipment, net by geographic area is summarized as follows:


	December 31,
(in thousands)	2025		2024
United States	$	26,494	$	33,101
International	13,568		6,164
Property and equipment, net	$	40,062	$	39,265

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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+ Details

Business and Summary of Significant Accounting Policies - Impairment of Long Lived Assets (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring		$ 3,113,000	$ 6,070,000	$ 4,499,000
Impairment of long lived assets		$ 0		$ 0
Impairment Of Right-of-use Asset and Fixed Assets
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 4,500,000		$ 4,500,000

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References + Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Business and Summary of Significant Accounting Policies - Treasury Stock (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended			26 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2025	Jan. 31, 2026	Jul. 31, 2025	Oct. 31, 2024	Nov. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program authorized amount	$ 187,600			$ 187,600				$ 100,000
Additional share repurchase amount authorized						$ 250,000	$ 200,000
Treasury Stock (in shares)	10,596	2,673		10,596
Purchase of treasury stock	$ 247,685	$ 99,977	$ 14,934	$ 362,400
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional share repurchase amount authorized					$ 150,000

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Leases - Schedule of Supplemental Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating leases
Weighted average remaining lease term	5 years 8 months 12 days	6 years 6 months
Weighted average discount rate	6.20%	6.10%
ROU assets obtained in exchange for lease obligations
Operating leases	$ 1,832	$ 10,143	$ 1,234

Segment and Geographic Information - Additional Information (Details) - segment	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Concentration Risk [Line Items]
Number of operating segments	1
United States \| Revenue \| Geographic Concentration Risk
Concentration Risk [Line Items]
Concentration risk (in percent)	53.00%	54.00%	55.00%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

- Definition

+ References + Details

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022		113,056
Beginning balance at Dec. 31, 2022	$ 270,866	$ 1,131	$ 1,017,837	$ 0	$ (1,351)	$ (746,751)
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options (in shares)	387	387
Exercise of stock options	$ 3,501	$ 4	3,497
Vesting of restricted stock units (in shares)		3,153
Vesting of restricted stock units	0	$ 32	(32)
Vesting of performance stock units (in shares)		91
Vesting of performance stock units	0	$ 0	0
Issuance of restricted stock award (in shares)		311
Issuance of restricted stock awards	0	$ 3	(3)
Issuance of common stock under employee stock purchase plan (in shares)		506
Issuance of common stock under employee stock purchase plan	16,224	$ 5	16,219
Purchase of treasury stock	(14,934)			(14,934)
Fair value of replacement equity attributable to pre-acquisition service	526		526
Stock-based compensation	147,056		147,056
Other comprehensive income (loss)	1,389				1,389
Net loss	(78,284)					(78,284)
Ending balance (in shares) at Dec. 31, 2023		117,504
Ending balance at Dec. 31, 2023	$ 346,344	$ 1,175	1,185,100	(14,934)	38	(825,035)
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options (in shares)	1,044	1,044
Exercise of stock options	$ 8,064	$ 11	8,053
Vesting of restricted stock units (in shares)		3,217
Vesting of restricted stock units	0	$ 32	(32)
Vesting of performance stock units (in shares)		107
Vesting of performance stock units	0	$ 1	(1)
Issuance of common stock under employee stock purchase plan (in shares)		499
Issuance of common stock under employee stock purchase plan	16,262	$ 5	16,257
Purchase of treasury stock	(99,977)			(99,977)
Fair value of replacement equity attributable to pre-acquisition service	42		42
Stock-based compensation	165,240		165,240
Other comprehensive income (loss)	280				280
Net loss	$ (36,301)					(36,301)
Ending balance (in shares) at Dec. 31, 2024	122,371	122,371
Ending balance at Dec. 31, 2024	$ 399,954	$ 1,224	1,374,659	(114,911)	318	(861,336)
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options (in shares)	2,646	2,161
Exercise of stock options	$ 3,619	$ 22	3,597
Vesting of restricted stock units (in shares)		3,647
Vesting of restricted stock units	0	$ 36	(36)
Vesting of performance stock units (in shares)		211
Vesting of performance stock units	0	$ 2	(2)
Issuance of restricted stock awards, net (in shares)		137
Issuance of restricted stock awards, net	0	$ 1	(1)
Issuance of common stock under employee stock purchase plan (in shares)		519
Issuance of common stock under employee stock purchase plan	15,482	$ 5	15,477
Taxes paid related to net share settlement of equity awards	(1,978)			(1,978)
Purchase of treasury stock	(247,685)			(247,685)
Fair value of replacement equity attributable to pre-acquisition service	146		146
Stock-based compensation	192,887		192,887
Other comprehensive income (loss)	69				69
Net loss	$ (36,118)					(36,118)
Ending balance (in shares) at Dec. 31, 2025	129,046	129,046
Ending balance at Dec. 31, 2025	$ 326,376	$ 1,290	$ 1,586,727	$ (364,574)	$ 387	$ (897,454)

Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment, net consisted of the following:


	December 31,
(in thousands)	2025		2024
Computer software and equipment	$	21,676	$	21,051
Internally developed software	44,403		39,944
Furniture and fixtures	5,833		5,140
Leasehold improvements	33,049		24,524
Total	104,961		90,659
Less: accumulated depreciation and amortization	(64,899)		(51,394)
Property and equipment, net	$	40,062	$	39,265

Fair Value Measurements - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Proceeds from SAFE Investments	$ 0.9	$ 3.5
Gain (loss) from SAFE investments		$ 1.5

Cash Equivalents and Short-Term Investments - Schedule of Amortized Cost, Unrealized Gain and Loss and Estimated Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Cash and Cash Equivalents [Line Items]
Cash equivalents	$ 59,760	$ 190,750
Amortized Cost	214,032	248,229
Unrealized Gain	390	442
Unrealized Loss	(3)	(124)
Estimated Fair Value	214,419	248,547
Commercial paper
Cash and Cash Equivalents [Line Items]
Amortized Cost	5,063	41,610
Unrealized Gain	3	0
Unrealized Loss	0	(6)
Estimated Fair Value	5,066	41,604
Corporate bonds
Cash and Cash Equivalents [Line Items]
Amortized Cost	94,729	95,267
Unrealized Gain	167	208
Unrealized Loss	(2)	(65)
Estimated Fair Value	94,894	95,410
Asset backed securities
Cash and Cash Equivalents [Line Items]
Amortized Cost	17,331	30,740
Unrealized Gain	33	63
Unrealized Loss	0	(7)
Estimated Fair Value	17,364	30,796
Yankee bonds
Cash and Cash Equivalents [Line Items]
Amortized Cost	13,280	13,998
Unrealized Gain	14	16
Unrealized Loss	(1)	(7)
Estimated Fair Value	13,293	14,007
U.S. Treasury and agency obligations
Cash and Cash Equivalents [Line Items]
Amortized Cost	83,629	66,614
Unrealized Gain	173	155
Unrealized Loss	0	(39)
Estimated Fair Value	83,802	66,730
Total cash equivalents
Cash and Cash Equivalents [Line Items]
Cash equivalents	59,760	190,750
Money market funds
Cash and Cash Equivalents [Line Items]
Cash equivalents	$ 59,760	$ 190,750

Net Loss Per Share

12 Months Ended

Dec. 31, 2025

Earnings Per Share [Abstract]

Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share:


	Year Ended December 31,
(in thousands, except per share data)	2025		2024		2023
Net loss	$	(36,118)	$	(36,301)	$	(78,284)

Weighted-average shares used to compute net loss per share, basic and diluted	120,124		118,789		115,408
Net loss per share, basic and diluted	$	(0.30)	$	(0.31)	$	(0.68)

The following potentially dilutive securities have been excluded from the diluted per share calculations because they would have been antidilutive:


	Year Ended December 31,
(in thousands)	2025	2024	2023
RSUs	8,994	7,209	7,343
Stock options	1,403	4,051	5,095
Shares to be issued under the 2018 ESPP	268	198	245
PSUs	279	300	258
Restricted stock	185	187	311
Total	11,129	11,945	13,252

Revenue - Schedule of Activity of Incremental Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Capitalized Contract Cost [Roll Forward]
Beginning balance	$ 119,705	$ 121,953
Capitalization of contract acquisition costs	62,517	52,263
Amortization of deferred contract acquisition costs	(57,593)	(54,511)
Ending balance	$ 124,629	$ 119,705

Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Schedule of Revenue by Region

Revenue by region, based on the address of the end user as specified in our subscription, license or service agreements, was as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
The Americas	$	610,996	$	558,068	$	500,512
Europe, Middle East and Africa	273,114		239,741		205,851
Asia Pacific	115,295		102,212		92,347
Revenue	$	999,405	$	900,021	$	798,710

Schedule of Property and Equipment, Net by Geographic Area

Our property and equipment, net by geographic area is summarized as follows:


	December 31,
(in thousands)	2025		2024
United States	$	26,494	$	33,101
International	13,568		6,164
Property and equipment, net	$	40,062	$	39,265

Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Total	$ 104,961	$ 90,659
Less: accumulated depreciation and amortization	(64,899)	(51,394)
Property and equipment, net	40,062	39,265
Computer software and equipment
Property, Plant and Equipment [Line Items]
Total	21,676	21,051
Internally developed software
Property, Plant and Equipment [Line Items]
Total	44,403	39,944
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total	5,833	5,140
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total	$ 33,049	$ 24,524

Acquisitions, Goodwill and Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($)
Goodwill [Roll Forward]
Balance at December 31, 2024	$ 541,292
Acquired goodwill	156,594
Balance at December 31, 2025	$ 697,886

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

+ References

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+ Details

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Components of Loss Before Income Taxes

U.S. and foreign components of the loss before income taxes were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
U.S. income (loss)	$	19,988	$	25,787	$	(26,249)
Foreign loss	(42,921)		(44,673)		(41,152)
Total loss before income taxes	$	(22,933)	$	(18,886)	$	(67,401)

Schedule of Components of the Provision for Income Taxes

The components of the provision for income taxes were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Current
Federal	$	5	$	3,278	$	5
State	300		454		708
Foreign	11,432		13,036		9,930
Total current tax expense	11,737		16,768		10,643
Deferred
Federal	1,095		580		293
State	676		227		239
Foreign	(323)		(160)		(292)
Total deferred tax expense	1,448		647		240
Total provision for income taxes	$	13,185	$	17,415	$	10,883

Schedule of Differences Between Federal and Effective Tax Rate

The items accounting for the difference between income taxes computed at the federal statutory rate and our effective tax rate after the adoption of ASU 2023-09 were as follows:


	Year Ended December 31, 2025
(dollars in thousands)	Amount		Percent
U.S. federal statutory tax rate	$	(4,816)	21.0	%
State and local income tax, net of federal (national) income tax effect(1)	916		(4.0)
Foreign tax effects
Brazil
Foreign withholding taxes	2,438		(10.6)
Colombia
Foreign withholding taxes	1,181		(5.1)
Israel
Federal statutory tax rate difference	(1,219)		5.3
Currency remeasurement	(4,732)		20.6
Changes in valuation allowances	16,206		(70.7)
Stock compensation	1,409		(6.1)
Other	858		(3.7)
Ireland
Currency remeasurement	(5,588)		24.4
Changes in valuation allowances	4,321		(18.8)
Other	(430)		1.9
France	2,197		(9.6)
Other foreign jurisdictions	3,096		(13.6)
Effect of cross border tax laws
Foreign branch loss	(7,850)		34.2
Legal entity reorganization	(3,032)		13.2
Other	(23)		0.1
Nontaxable or nondeductible items
Stock compensation	2,300		(10.0)
Other	1,502		(6.5)
Tax credits
Research credits	(3,282)		14.3
Changes in unrecognized tax benefits	359		(1.6)
Changes in valuation allowances	7,374		(32.2)
Total tax expense	$	13,185	(57.5)	%

_______________

(1) State and local taxes in California, Texas, Illinois, and New York make up the majority of the tax effect.

The items accounting for the difference between income taxes computed at the federal statutory rate and our effective tax rate were as follows for years prior to our adoption of ASU 2023-09:


	Year Ended December 31,
	2024		2023
U.S. federal statutory tax rate	21.0	%	21.0	%
State and local taxes	(0.9)		1.9
Research and development tax credit	25.5		8.4
Stock-based compensation	(13.6)		(11.3)

Foreign tax rate differential	35.4		(1.7)
Change in valuation allowance	(81.7)		(34.0)
Gain on intercompany sale, net of losses	(2.1)		(1.4)


Foreign withholding tax	(24.8)		(5.4)
Foreign deferred FX remeasurement	(20.5)		9.0
GILTI	(1.7)		—
BEAT	(17.6)		—
Transaction costs	(3.6)		(1.0)
Non-deductible expenses	(5.3)		(1.5)
Other	(2.3)		(0.3)
Effective tax rate	(92.2)	%	(16.3)	%

Schedule of Components of Deferred Tax Assets and Liabilities

The components of the deferred tax assets and liabilities were as follows:


	December 31,
(in thousands)	2025		2024
Deferred tax assets:
Net operating losses	$	187,353	$	153,781
Deferred revenue	21,706		21,949
Stock-based compensation	22,571		21,802
Tax credits	31,692		28,420
Leases	14,307		14,936
Accrued compensation	4,104		3,364
Interest expense	969		2,171
Capitalized research and development	34,621		32,441
Other	3,221		3,219
Total deferred tax assets	320,544		282,083
Valuation allowance	(254,880)		(219,773)
Net deferred tax assets	65,664		62,310
Deferred tax liabilities:
Deferred commissions	(24,212)		(23,623)
Property and equipment	(11,071)		(12,821)
Intangible assets	(32,827)		(27,302)
Other	(1,213)		(773)
Total deferred tax liabilities	(69,323)		(64,519)
Net deferred tax liabilities	$	(3,659)	$	(2,209)

Schedule Change in Gross Unrecognized Tax Benefits

The change in gross unrecognized tax benefits, excluding accrued interest, were as follows:


	Year Ended December 31,
(in thousands)	2025		2024		2023
Unrecognized tax benefits at the beginning of the period	$	8,538	$	8,297	$	7,820
Additions for tax positions in the current year	151		329		417
Increase in prior year positions	385		—		60
Decrease in prior year positions	(18)		(88)		—
Acquisitions	—		—		—
Unrecognized tax benefits at the end of the period	$	9,056	$	8,538	$	8,297

Schedule of Income Taxes Paid Net of Refunds Received

The amount of cash income taxes paid, net of refunds received were as follows:


(in thousands)	Year Ended December 31, 2025
U.S. federal	$	(29)
U.S. state and local	698
Foreign
Brazil	3,860
Colombia	1,708
Israel	(1,249)
Singapore	998
Other	5,815
Total	$	11,801

Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
Benefit Plans (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Retirement Benefits [Abstract]
Contribution expense	$ 10.1	$ 9.8	$ 10.3

Leases - Additional Information (Details) $ in Thousands	1 Months Ended	12 Months Ended
Leases - Additional Information (Details) $ in Thousands	Jun. 30, 2024 USD ($)	Dec. 31, 2025 USD ($) renewal_option	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jan. 31, 2026 USD ($)
Operating Leased Assets [Line Items]
Number of renewal options \| renewal_option		1
Renewal term on lease		5 years
Option to terminate lease		5 years
Restructuring		$ 3,113	$ 6,070	$ 4,499
Sublease Income		1,600	800
Lessor, sublease income to be received 2026		1,700
Lessor, sublease income to be received 2027		1,800
Lessor, sublease income to be received 2028		1,900
Lessor, sublease income to be received 2029		1,900
Lessor, sublease income to be received 2030		2,000
Lessor, sublease income to be received thereafter		$ 2,500
Subsequent Event
Operating Leased Assets [Line Items]
Remaining terms of leases					10 years
Lessor, expected future lease payment					$ 12,900
Impairment Of Right-of-use Asset and Fixed Assets
Operating Leased Assets [Line Items]
Restructuring	$ 4,500		$ 4,500
Minimum
Operating Leased Assets [Line Items]
Remaining terms of leases		1 year
Maximum
Operating Leased Assets [Line Items]
Remaining terms of leases		6 years

Debt - Schedule of Carrying Value of Term Loan (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Debt Instrument [Line Items]
Term loan	$ 360,000
Secured Debt
Debt Instrument [Line Items]
Term loan	360,000
Less: Unamortized debt discount and issuance costs	(3,293)
Term loan, net of issuance costs	356,707
Less: Term loan, net, current	(2,498)
Term loan, net of issuance costs (net of current portion)	$ 354,209

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References + Details

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

Revenue - Schedule of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 999,405	$ 900,021	$ 798,710
Subscription revenue
Disaggregation of Revenue [Line Items]
Revenue	919,573	824,659	725,013
Perpetual license and maintenance revenue
Disaggregation of Revenue [Line Items]
Revenue	44,661	47,774	48,729
Professional services and other revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 35,171	$ 27,588	$ 24,968

- Definition

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Debt (Tables)

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Schedule of Carrying Value of Term Loan

The table below summarizes the carrying value of the Term Loan:


(in thousands)	December 31, 2025
Term loan	$	360,000
Less: Unamortized debt discount and issuance costs	(3,293)
Term loan, net of issuance costs	356,707
Less: Term loan, net, current (1)	(2,498)
Term loan, net of issuance costs (net of current portion)	$	354,209

_______________

(1) Term loan, net, current is included in other current liabilities on our consolidated balance sheets.

Schedule of Maturities of Term Loan

The maturities of our Term Loan at December 31, 2025 were as follows:


(in thousands)
Year ending December 31,
2026	$	3,750
2027	3,750
2028	352,500
Total	$	360,000

Business and Summary of Significant Accounting Policies - Goodwill (Details)	12 Months Ended
	Dec. 31, 2025 reporting_unit
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reporting units	1