0001193125-25-269582 | 10-Q | XBRL Viewer

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Equity-Based Compensation - Schedule of Equity-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Equity-based compensation expense	$ 25,219	$ 259,983	$ 94,562	$ 263,815
Cost of Subscription
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Equity-based compensation expense	534	4,981	1,874	4,981
Cost of Professional Services and Other
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Equity-based compensation expense	1,344	21,886	4,571	21,886
Sales and Marketing
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Equity-based compensation expense	9,377	114,713	35,019	115,987
Research and Development
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Equity-based compensation expense	6,134	62,251	25,481	63,505
General and Administrative
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Equity-based compensation expense	$ 7,830	$ 56,152	$ 27,617	$ 57,456

Income Taxes	9 Months Ended
Sep. 30, 2025
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 7 – INCOME TAXES The Company is treated as a corporation for income tax purposes and is subject to federal, state, local and foreign taxes with respect to allocable share of any net taxable income from OneStream Software LLC. OneStream Software LLC is a limited liability company treated as a partnership for income tax purposes and its taxable income or loss is passed through to its members, including the Company. OneStream Software LLC’s foreign subsidiaries are taxed in the foreign jurisdictions in which they operate, and accruals for such taxes are included in the Company’s condensed consolidated financial statements. For the periods presented prior to the Reorganization Transactions and IPO, the reported income taxes represent those of OneStream Software LLC. The Company computed its interim provision by applying its estimated annual effective tax rate to year-to-date loss before income taxes. The Company also records the tax impact of certain discrete, unusual or infrequently occurring items, including changes in judgment about valuation allowances and the effects of changes in tax laws or rates on deferred tax balances, in the interim period in which they occur. Furthermore, jurisdictions in which we operate with a projected loss for the year or a year-to-date loss where no tax benefit can be recognized are excluded from the estimated annual effective tax rate. The Company’s income tax (benefit) provision was not material for the three months ended September 30, 2025 and 2024. The provision was $0.9 million and $0.6 million for the nine months ended September 30, 2025 and 2024, respectively. For all periods presented, the Company’s effective tax rate differed from the U.S. statutory tax rate of 21% primarily due to non-controlling interest and having a full valuation allowance. Numerous countries have agreed to a statement in support of the Organization for Economic Co-operation and Development (OECD) model rules that propose a global minimum tax rate of 15%, and European Union member states have agreed to implement the global minimum tax. Certain countries, including European Union member states, have enacted or are expected to enact, related legislation, with widespread implementation of a global minimum tax expected by 2025. As of September 30, 2025, the Company was not materially impacted by this legislation. As further legislation becomes effective in countries in which the Company does business, and if the Company’s revenue grows in foreign jurisdictions, the Company’s provision for income taxes could be materially impacted. The Company will continue to monitor whether these provisions will become applicable on an ongoing basis. On July 4, 2025, the One Big Beautiful Bill Act (“the Act”) was enacted into law, introducing a broad range of changes to the U.S. tax code. The Company has evaluated the impact of the Act and determined it will not have a material impact on its financial results. Tax Receivable Agreement In connection with the Reorganization Transactions, the Company entered into a Tax Receivable Agreement (TRA) with OneStream Software LLC, KKR and other Continuing Members, and certain Former Members. Under the TRA, the Company will retain 15% of certain available tax savings and will be required to pay KKR and the other Continuing Members, and certain Former Members, the remaining 85% of such tax savings, if any, that are realized or deemed realized as a result of tax attributes, i.e., deferred tax assets. The amounts of any tax benefit to the Company that arises from future exchanges or redemptions of LLC Units will vary depending on a number of factors, including, but not limited to, the timing of any future redemptions or exchanges and the price of shares of its Class A common stock at the time of such future redemption or exchange. The Company will only recognize a deferred tax asset for financial reporting purposes when it is “more-likely-than-not” that the tax benefit will be realized. Based on the Company’s assessment, it is not more-likely-than-not that the Company will realize the tax benefit of any deferred tax asset resulting from the Reorganization Transactions and subsequent LLC Unit exchanges and redemptions, and therefore, the Company has established a full valuation against its U.S. deferred tax asset. As such, the Company has concluded that a TRA liability is not probable, and therefore no TRA liability has been recorded in the condensed consolidated financial statements as of September 30, 2025. Had the tax benefit been assessed to be more-likely-than-not to be realized, the maximum estimated TRA liability that could result from past exchanges would have been $195.2 million as of September 30, 2025.

Income Taxes

9 Months Ended

Sep. 30, 2025

Income Tax Disclosure [Abstract]

Income Taxes

NOTE 7 – INCOME TAXES

The Company is treated as a corporation for income tax purposes and is subject to federal, state, local and foreign taxes with respect to allocable share of any net taxable income from OneStream Software LLC.

OneStream Software LLC is a limited liability company treated as a partnership for income tax purposes and its taxable income or loss is passed through to its members, including the Company. OneStream Software LLC’s foreign subsidiaries are taxed in the foreign jurisdictions in which they operate, and accruals for such taxes are included in the Company’s condensed consolidated financial statements. For the periods presented prior to the Reorganization Transactions and IPO, the reported income taxes represent those of OneStream Software LLC.

The Company computed its interim provision by applying its estimated annual effective tax rate to year-to-date loss before income taxes. The Company also records the tax impact of certain discrete, unusual or infrequently occurring items, including changes in judgment about valuation allowances and the effects of changes in tax laws or rates on deferred tax balances, in the interim period in which they occur. Furthermore, jurisdictions in which we operate with a projected loss for the year or a year-to-date loss where no tax benefit can be recognized are excluded from the estimated annual effective tax rate.

The Company’s income tax (benefit) provision was not material for the three months ended September 30, 2025 and 2024. The provision was $0.9 million and $0.6 million for the nine months ended September 30, 2025 and 2024, respectively. For all periods presented, the Company’s effective tax rate differed from the U.S. statutory tax rate of 21% primarily due to non-controlling interest and having a full valuation allowance.

Numerous countries have agreed to a statement in support of the Organization for Economic Co-operation and Development (OECD) model rules that propose a global minimum tax rate of 15%, and European Union member states have agreed to implement the global minimum tax. Certain countries, including European Union member states, have enacted or are expected to enact, related legislation, with widespread implementation of a global minimum tax expected by 2025. As of September 30, 2025, the Company was not materially impacted by this legislation. As further legislation becomes effective in countries in which the Company does business, and if the Company’s revenue grows in foreign jurisdictions, the Company’s provision for income taxes could be materially impacted. The Company will continue to monitor whether these provisions will become applicable on an ongoing basis.

On July 4, 2025, the One Big Beautiful Bill Act (“the Act”) was enacted into law, introducing a broad range of changes to the U.S. tax code. The Company has evaluated the impact of the Act and determined it will not have a material impact on its financial results.

Tax Receivable Agreement

In connection with the Reorganization Transactions, the Company entered into a Tax Receivable Agreement (TRA) with OneStream Software LLC, KKR and other Continuing Members, and certain Former Members. Under the TRA, the Company will retain 15% of certain available tax savings and will be required to pay KKR and the other Continuing Members, and certain Former Members, the remaining 85% of such tax savings, if any, that are realized or deemed realized as a result of tax attributes, i.e., deferred tax assets. The amounts of any tax benefit to the Company that arises from future exchanges or redemptions of LLC Units will vary depending on a number of factors, including, but not limited to, the timing of any future redemptions or exchanges and the price of shares of its Class A common stock at the time of such future redemption or exchange. The Company will only recognize a deferred tax asset for financial reporting purposes when it is “more-likely-than-not” that the tax benefit will be realized.

Based on the Company’s assessment, it is not more-likely-than-not that the Company will realize the tax benefit of any deferred tax asset resulting from the Reorganization Transactions and subsequent LLC Unit exchanges and redemptions, and therefore, the Company has established a full valuation against its U.S. deferred tax asset. As such, the Company has concluded that a TRA liability is not probable, and therefore no TRA liability has been recorded in the condensed consolidated financial statements as of September 30, 2025. Had the tax benefit been assessed to be more-likely-than-not to be realized, the maximum estimated TRA liability that could result from past exchanges would have been $195.2 million as of September 30, 2025.

- Definition

The entire disclosure for income tax.

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+ Details

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands

Sep. 30, 2025

Dec. 31, 2024

Current assets:

Cash and cash equivalents

$ 653,851

$ 544,174

Accounts receivable, net

151,692

129,014

Unbilled accounts receivable

18,499

23,294

Deferred commissions

22,606

20,682

Prepaid expenses and other current assets

16,542

20,202

Total current assets

863,190

737,366

Unbilled accounts receivable, noncurrent

680

800

Deferred commissions, noncurrent

45,032

44,228

Operating lease right-of-use assets

15,817

16,705

Property and equipment, net

8,490

10,084

Intangible assets, net

2,851

2,567

Goodwill

12,548

9,280

Other noncurrent assets

839

2,191

Total assets

949,447

823,221

Current liabilities:

Accounts payable

32,381

19,563

Accrued compensation

31,175

27,543

Accrued commissions

8,366

9,007

Deferred revenue, current

275,517

239,291

Operating lease liabilities, current

3,377

3,237

Other accrued expenses and current liabilities

13,892

13,534

Total current liabilities

364,708

312,175

Deferred revenue, noncurrent

7,204

4,515

Operating lease liabilities, noncurrent

14,320

15,357

Other noncurrent liabilities

347

216

Total liabilities

386,579

332,263

Commitments and contingencies (Note 5)

Stockholders' / members' equity:

Preferred stock, $0.0001 par value, 100,000,000 shares authorized, no shares issued and outstanding as of September 30, 2025, 2025 and December 31, 2024

Additional paid-in capital

853,956

718,084

Accumulated other comprehensive income (loss)

753

(599)

Accumulated deficit

(382,632)

(331,334)

Total stockholders' equity attributable to OneStream, Inc. / members' equity

472,100

386,174

Non-controlling interests

90,768

104,784

Total stockholders' / members' equity

562,868

490,958

Total liabilities and stockholders' / members' equity

949,447

823,221

Class A Common Stock

Stockholders' / members' equity:

Common stock

Class C Common Stock

Stockholders' / members' equity:

Common stock

^[1]

Class D Common Stock

Stockholders' / members' equity:

Common stock

^[1]

$ 9

$ 12

[1]

Each share of Class C common stock is convertible at any time at the option of the holder into one share of Class B common stock, and each share of Class D common stock is convertible at any time at the option of the holder into one share of Class A common stock. Refer to Note 8 in the accompanying notes for details.

Net Loss Per Share - Schedule of Outstanding Share Totals with Potentially Dilutive Impact (Details) - shares shares in Thousands	2 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	39,288	35,884	35,828
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	39,101	29,640	29,640
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	187	5,627	5,627
Purchase rights committed under the ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total		617	561

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2025	Dec. 31, 2024
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	100,000,000	100,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Class A common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	2,500,000,000	2,500,000,000
Common stock, shares issued	89,918,545	51,456,091
Common stock, shares outstanding	89,918,545	51,456,091
Class B common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0
Class C common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	55,780,105	63,929,619
Common stock, shares outstanding	55,780,105	63,929,619
Class D Common Stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	600,000,000	600,000,000
Common stock, shares issued	97,763,174	122,196,307
Common stock, shares outstanding	97,763,174	122,196,307

Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenues by Geographic Region

Revenue by geographic region, based on the physical location of the customer, was as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
United States	$	102,099	$	91,164	$	289,425	$	248,507
Other		52,204		37,976		148,777		108,425
Total revenue	$	154,303	$	129,140	$	438,202	$	356,932

Commitments and Contingencies - Additional Information (Details) - USD ($)	1 Months Ended
	Jun. 30, 2022	Sep. 30, 2025	Nov. 07, 2024
Loss Contingencies [Line Items]
Purchase commitment		$ 21,463,000
Consumption Agreement
Loss Contingencies [Line Items]
Number of years for agreement	5 years
Purchase commitment	$ 300,000,000		$ 360,000,000
Minimum annual spending requirement	$ 0
Remaining commitment under the agreement		$ 144,300,000

- 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.

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+ Details

Equity-Based Compensation - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Feb. 17, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Jul. 25, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Equity-based compensation expense		$ 25,219	$ 259,983	$ 94,562	$ 263,815
2024 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized equity-based compensation cost, weighted-average remaining service period				2 years 9 months 18 days
Unrecognized equity-based compensation expense		9,000		$ 9,000
2019 Common Unit Option Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized equity-based compensation cost, weighted-average remaining service period				2 years 1 month 6 days
Unrecognized equity-based compensation expense		37,400		$ 37,400
Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Consecutive offering periods				The Company’s board of directors amended and restated the ESPP in January 2025 to provide for consecutive offering periods lasting approximately 24 months and consisting of four purchase periods of approximately six months. An offering period generally starts on the first trading day on or after May 15 and November 15 of each year and ends on the last trading day of the applicable 24-month period. The initial offering period under the ESPP commenced on February 17, 2025 and will extend through the first trading day on or after May 15, 2027.
Offering period				24 months
Percentage of employees eligible compensation	0.15
Maximum number of shares per employee	3,000
Unrecognized equity-based compensation expense		3,400		$ 3,400
Unrecognized equity-based compensation cost, weighted-average remaining service period				1 year 7 months 6 days
Equity-based compensation expense		$ 600		$ 1,200
Percentage of number of shares of capital stock outstanding on last day of preceding year				1.00%
Class A common stock \| Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage purchase price of shares equal to fair market value	85.00%
Common stock reserved for future issuance		5,400,000		5,400,000
Class A common stock \| Employee Stock Purchase Plan \| Initial Public Offering \| OneStream Software LLC
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance							10,700,000
Performance-based Shares \| DataSense
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized equity-based compensation expense		$ 5,500		$ 5,500
Unrecognized equity-based compensation cost, weighted-average remaining service period				1 year 3 months 18 days
Performance-based Shares \| DataSense \| Class C common stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common units vested				302,791
Options granted				706,511		1,009,302
RSUs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized equity-based compensation expense		$ 129,000		$ 129,000
Unrecognized equity-based compensation cost, weighted-average remaining service period				3 years 6 months

Organization and Description of Business

9 Months Ended

Sep. 30, 2025

Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]

Organization and Description of Business

NOTE 1 – ORGANIZATION AND DESCRIPTION OF BUSINESS

OneStream, Inc. (the Company or OneStream) was incorporated as a Delaware corporation on October 15, 2021 as a holding company for the purpose of facilitating an initial public offering (IPO) and other related transactions in order to carry on the business of OneStream Software LLC. OneStream Software LLC was formed in 2012 as a limited liability company (LLC) in the state of Michigan and converted to a state of Delaware LLC on February 5, 2019. OneStream delivers a unified, artificial intelligence-enabled and extensible software platform - the Digital Finance Cloud - that unifies core financial functions and broader operational data and processes within a single platform. OneStream’s customers are located throughout the world; however, they are primarily located in North America and Europe. OneStream is headquartered in Birmingham, Michigan and has international locations in Australia, Europe and Singapore.

Initial Public Offering

On July 25, 2024, the Company completed the IPO in which it sold 21,729,333 shares of its Class A common stock, par value $0.0001 per share, including the full exercise of the underwriters’ option to purchase additional shares, at a public offering price of $20.00 per share. The Company received net proceeds from the IPO of $409.6 million, net of underwriting discounts and commissions of $25.0 million, but before deducting offering expenses. The Company used $352.9 million of the proceeds to purchase 18,723,296 newly issued common units (LLC Units) of OneStream Software LLC and $56.7 million of the proceeds to purchase 3,006,037 issued and outstanding LLC Units from certain members of OneStream Software LLC in a “synthetic secondary” transaction (the IPO Synthetic Secondary), in each case at a price per share equal to the IPO price to the public, net of underwriting discounts and commissions.

Certain of the Company’s existing stockholders sold 6,445,667 shares of Class A common stock in the IPO at the public offering price of $20.00 per share. This sale included 5,986,437 shares of Class D common stock that were converted into an equal number of shares of Class A common stock and 459,230 shares of Class A common stock that were issued upon exercise of options granted to certain executive officers and other employees. The Company did not receive any proceeds from the sale of shares by the selling stockholders.

Reorganization Transactions

In connection with the IPO, the Company and OneStream Software LLC completed a series of organizational transactions (the Reorganization Transactions), including the following:

•

The amended and restated operating agreement of OneStream Software LLC was amended and restated (as further amended, the Amended LLC Agreement) to, among other things: (i) appoint the Company as the sole manager of OneStream Software LLC and (ii) effectuate the reclassification of all of the then-outstanding preferred units, common units and incentive compensation units (the ICUs) of OneStream Software LLC into a single class of non-voting LLC Units. The then-outstanding preferred units and common units were reclassified into an equal number of LLC Units, and the 8,632,763 then-outstanding ICUs were reclassified into 6,591,178 LLC Units.

•

Certain pre-IPO members of OneStream Software LLC that were corporations merged with and into the Company (the Former Members) and contributed their LLC Units to the Company in exchange for shares of Class D common stock of the Company (the Blocker Mergers).

•

The certificate of incorporation of the Company was amended and restated to authorize additional shares of four series of common stock, Class A common stock, Class B common stock, Class C common stock and Class D common stock, and one class of preferred stock. The amended and restated certificate of incorporation and the Amended LLC Agreement require OneStream Software LLC and the Company to, at all times, maintain (i) a one-to-one ratio between the number of LLC Units owned by the Company and the number of shares of Class A common stock and Class D common stock outstanding and (ii) a one-to-one ratio between the number of shares of Class B common stock and Class C common stock owned by the members of OneStream Software LLC (the Continuing Members) and the number of LLC Units owned by the Continuing Members.

As the sole manager of OneStream Software LLC, the Company controls all of the business operations, affairs and management of OneStream Software LLC. Accordingly, the Company consolidates the financial results of OneStream Software LLC and reports the non-controlling interests of the Continuing Members’ LLC Units on its condensed consolidated balance sheets.

Property and Equipment - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 18,664	$ 18,313
Less: Accumulated depreciation and amortization	(10,174)	(8,229)
Property and equipment, net	8,490	10,084
Leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment	8,836	9,038
Capitalized software costs
Property, Plant and Equipment [Line Items]
Gross property and equipment	5,801	5,264
Furniture and equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment	3,975	3,767
Construction in progress
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 52	$ 244

Equity-Based Compensation

9 Months Ended

Sep. 30, 2025

Share-Based Payment Arrangement [Abstract]

Equity-Based Compensation

NOTE 10 – EQUITY-BASED COMPENSATION

2019 Common Unit Option Plan (the 2019 Plan)

The following table summarizes the option activity under the 2019 Plan during the nine months ended September 30, 2025 (in thousands, except per share data):


	Options			Weighted- Average Exercise Price per Share		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding as of December 31, 2024		33,321		$	10.58		7.63	$	597,716
Forfeited / Cancelled		(669	)		12.59
Exercised		(5,335	)		8.77				93,054
Outstanding as of September 30, 2025		27,317		$	10.89		6.90	$	206,075
Vested and exercisable as of September 30, 2025		17,930		$	9.75		6.34	$	155,588

Total unrecognized equity-based compensation expense related to stock options granted under the 2019 Plan was $37.4 million as of September 30, 2025, which is expected to be recognized over a weighted-average remaining service period of 2.1 years using the accelerated attribution method.

2024 Equity Incentive Plan (the 2024 Plan)

The following table summarizes the option activity under the 2024 Plan during the nine months ended September 30, 2025 (in thousands, except per share data):


	Options			Weighted- Average Exercise Price per Share		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding as of December 31, 2024		2,400		$	20.00		9.56	$	20,447
Forfeited / Cancelled		(63	)		20.00
Exercised		(14	)		20.00				114
Outstanding as of September 30, 2025		2,323		$	20.00		8.74	$	—
Vested and exercisable as of September 30, 2025		586		$	20.00		8.53	$	—

Total unrecognized equity-based compensation expense related to stock options granted under the 2024 Plan was $9.0 million as of September 30, 2025, which is expected to be recognized over a weighted-average remaining service period of 2.8 years using the accelerated attribution method.

The following table summarizes the RSU activity under the 2024 Plan during the nine months ended September 30, 2025 (in thousands, except per share data):


	RSUs			Weighted- Average Grant Date Fair Value per Share
Outstanding as of December 31, 2024		355		$	29.48
Granted		6,116			23.44
Vested		(662	)		23.84
Forfeited / Cancelled		(182	)		23.98
Outstanding as of September 30, 2025		5,627		$	23.76

Total unrecognized equity-based compensation expense related to the RSUs was $129.0 million as of September 30, 2025, which is expected to be recognized over a weighted-average remaining service period of 3.5 years using the straight-line method.

Shares withheld for employee tax withholding obligations remain in the authorized but unissued pool under the 2024 Plan and are available for reissuance. Payments for employee tax obligations are recognized as a reduction to additional paid-in capital and reflected as financing activities on our consolidated statement of cash flows.

Employee Stock Purchase Plan (the ESPP)

In July 2024, in connection with the IPO, the Company’s board of directors adopted the ESPP with a total of 10,700,000 shares of Class A common stock reserved for issuance. The ESPP allows for the number of shares available for issuance under the plan to be automatically increased on the first day of each fiscal year following the fiscal year in which the first offering period under the ESPP commences, in an amount equal to the lesser of (i) 5,400,000 shares of Class A common stock, (ii) 1% of the outstanding shares of all series of the Company’s common stock on the last day of the immediately preceding fiscal year or (iii) such other number as determined by the Administrator (as defined in the ESPP).

The Company’s board of directors amended and restated the ESPP in January 2025 to provide for consecutive offering periods lasting approximately 24 months and consisting of four purchase periods of approximately six months. An offering period generally starts on the first trading day on or after May 15 and November 15 of each year and ends on the last trading day of the applicable 24-month period. The initial offering period under the ESPP commenced on February 17, 2025 and will extend through the first trading day on or after May 15, 2027.

Eligible employees were permitted to participate in the ESPP as of February 17, 2025. The ESPP allows eligible employees to purchase the Company’s Class A common stock at a price per share equal to 85% of the fair market value, determined as of the lower of (i) the first trading day of the offering period or (ii) the last trading day of the offering period. Participants may contribute up to 15% of their eligible compensation to the ESPP, and share purchases are limited to a maximum of 3,000 shares for each participant during any purchase period. The ESPP allows participants to decrease contributions (1) once within a purchase period or (2) at any time for a future purchase period. Participants cannot increase contributions within a purchase period and may only increase contributions for future purchase periods. Participation may be ended at any time during an offering period and automatically ends upon termination of employment. The ESPP also offers a rollover feature that provides for an offering period to be rolled over to a new, lower-priced offering if the stock price at the end of the purchase period is lower than on the first trading day of an offering period.

Equity-based compensation expense related to the ESPP was $0.6 million and $1.2 million for the three and nine months ended September 30, 2025. Total unrecognized equity-based compensation expense related to the ESPP was $3.4 million as of September 30, 2025, which is expected to be recognized over a weighted-average remaining service period of 1.6 years using the straight-line method. As of September 30, 2025, there have been no shares issued under the ESPP.

DataSense Holdings Awards

During the nine months ended September 30, 2025, 302,791 LLC Units and corresponding shares of Class C common stock held by DataSense Holdings LLC (DataSense Holdings) vested. As of September 30, 2025, 706,511 LLC Units and corresponding shares of Class C common stock issued to DataSense Holdings remained unvested and total unrecognized equity-based compensation expense related to these awards was $5.5 million, which is expected to be recognized over a weighted-average remaining service period of 1.3 years using the accelerated attribution method. As of December 31, 2024, 1,009,302 LLC Units and corresponding shares of Class C common stock issued to DataSense Holdings were unvested. The unvested LLC Units and corresponding shares of Class C common stock are classified as outstanding on the Company’s condensed consolidated balance sheets as they are legally outstanding.

Classification of Equity-Based Compensation Expense

Equity-based compensation expense was classified as follows in the accompanying unaudited condensed consolidated statements of operations (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
Cost of subscription	$	534	$	4,981	$	1,874	$	4,981
Cost of professional services and other		1,344		21,886		4,571		21,886
Sales and marketing		9,377		114,713		35,019		115,987
Research and development		6,134		62,251		25,481		63,505
General and administrative		7,830		56,152		27,617		57,456
Total equity-based compensation	$	25,219	$	259,983	$	94,562	$	263,815

Stockholders' / Members' Equity	9 Months Ended
Stockholders' / Members' Equity	Sep. 30, 2025
OneStream, Inc
Class of Stock [Line Items]
Stockholders' / Members' Equity	NOTE 8 – STOCKHOLDERS’ / MEMBERS’ EQUITY Amendment and Restatement of Certificate of Incorporation In connection with the Reorganization Transactions, the certificate of incorporation of OneStream, Inc. was amended and restated to, among other things, provide for the authorization of (i) 2,500,000,000 shares of Class A common stock with a par value of $0.0001 per share, (ii) 300,000,000 shares of Class B common stock with a par value of $0.0001 per share, (iii) 300,000,000 shares of Class C common stock with a par value of $0.0001 per share, (iv) 600,000,000 shares of Class D common stock with a par value of $0.0001 per share, and (v) 100,000,000 shares of preferred stock with a par value of $0.0001 per share. The rights of the holders of Class A common stock, Class B common stock, Class C common stock and Class D common stock are identical, except with respect to voting rights, conversion rights and economic rights. Each share of Class A common stock is entitled to one vote per share and has economic rights. Each share of Class B common stock is entitled to one vote per share, is cancellable upon the redemption or exchange of one LLC Unit for cash or one share of Class A common stock and has no economic rights. Each share of Class C common stock is entitled to ten votes per share, is cancellable upon the redemption or exchange of one LLC Unit for cash or one share of Class D common stock, is convertible into one share of Class B common stock and has no economic rights. Each share of Class D common stock is entitled to ten votes per share, is convertible into one share of Class A common stock and has economic rights. Recapitalization of OneStream Software LLC In connection with the Reorganization Transactions and the Amended LLC Agreement, all membership interests in OneStream Software LLC were reclassified into a single class of LLC Units. The following is a summary of the securities reclassified in connection with the Reorganization Transactions: • 80,324,378 common units of OneStream Software LLC outstanding prior to the Reorganization Transactions were reclassified on a one-for-one basis into LLC Units; • 128,293,508 convertible preferred units of OneStream Software LLC outstanding prior to the Reorganization Transactions were reclassified on a one-for-one basis into LLC Units; and • 8,632,763 ICUs of OneStream Software LLC outstanding prior to the Reorganization Transactions were reclassified into 6,591,178 LLC Units. In addition, the Company issued 74,135,230 shares of Class C common stock, net of 3,006,037 shares of Class C common stock purchased and cancelled in the IPO Synthetic Secondary, to the Continuing Members. The Company also issued 132,081,358 shares of Class D common stock, net of the conversion of 5,986,437 shares of Class D common stock to Class A common stock in connection with the sale of such shares in the IPO, to the Former Members in exchange for LLC Units on a one-for-one basis. Preferred Stock As of September 30, 2025, there are no shares of preferred stock outstanding. Under the terms of the Company’s amended and restated certificate of incorporation, the board of directors is authorized to direct the Company to issue shares of preferred stock in one or more series without shareholder approval. The board of directors has the discretion to determine the rights, preferences, privileges and restrictions, including dividend rights, dividend rates, conversion rights, exchange rights, voting rights, redemption privileges and liquidation preferences, of each series of preferred stock. Exchanges and Redemptions of LLC Units During the three and nine months ended September 30, 2025, pursuant to the terms of the Amended LLC Agreement, certain Continuing Members redeemed 716,296 and 8,149,514 LLC Units, respectively, along with their corresponding shares of Class C common stock, in exchange for an equal number of shares of Class D common stock, which were all subsequently converted into Class A common stock. Simultaneously, and in connection with these exchanges and redemptions, the Company cancelled the exchanged shares of Class C common stock. Conversions of Class D Common Stock During the three and nine months ended September 30, 2025, a total of 448,908 and 24,433,133 shares, respectively, of Class D common stock were converted to Class A common stock by certain Former Members. Upon the completion of the conversion, the associated shares of Class D common stock were retired and will not be reissued.

- 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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The entire disclosure for equity.

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+ Details

Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands

1 Months Ended

2 Months Ended

3 Months Ended

9 Months Ended

Jul. 23, 2024

Sep. 30, 2024

Sep. 30, 2025

Jun. 30, 2025

Mar. 31, 2025

Sep. 30, 2024

Jun. 30, 2024

Mar. 31, 2024

Sep. 30, 2025

Sep. 30, 2024

Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]

Net loss

$ (1,835)

$ (247,510)

$ (11,491)

$ (24,810)

$ (32,651)

$ (249,345)

$ (7,850)

$ (4,959)

$ (68,952)

$ (262,154)

Less: net loss attributable to non-controlling interests

(77,402)

(2,641)

(77,402)

(17,654)

(77,402)

Net loss attributable to OneStream, Inc.

$ (170,108)

$ (8,850)

$ (171,943)

$ (51,298)

$ (184,752)

Class A and Class D common stock

Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]

Weighted-average shares of Class A and Class D common stock outstanding-basic

160,300

186,629

^[1]

160,300

^[1]

179,930

^[1]

160,300

^[1]

Weighted-average shares of Class A and Class D common stock outstanding - diluted

160,300

186,629

^[1]

160,300

^[1]

179,930

^[1]

160,300

^[1]

Net loss per share of Class A and Class D common stock-basic

$ (1.06)

$ (0.05)

$ (0.29)

Net loss per share of Class A and Class D common stock-diluted

$ (1.06)

$ (0.05)

$ (0.29)

[1]

Represents net loss per share of Class A common stock and Class D common stock and weighted-average shares of Class A common stock and Class D common stock outstanding for the applicable periods following the Reorganization Transactions as described in Note 1, Organization and Description of Business. Refer to Note 11, Net Loss per Share, in the accompanying notes for additional details.

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Effective Income Tax Rate Reconciliation [Line Items]
Provision for income taxes	$ (119,000)	$ (32,000)	$ 917,000	$ 614,000
U.S. statutory tax rate			21.00%	21.00%
Global minimum income tax rate			15.00%
Tax receivable agreement liability	$ 0		$ 0
Exchange units, value			$ 195,200,000
Minimum
Effective Income Tax Rate Reconciliation [Line Items]
Available tax savings percentage			15.00%
Maximum
Effective Income Tax Rate Reconciliation [Line Items]
Available tax savings percentage			85.00%

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
-Topic 235
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

Equity-Based Compensation - Schedule of Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares
2019 Common Unit Option Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options, Outstanding, Beginning balance \| shares	33,321
Options, Forfeited / Cancelled \| shares	(669)
Options, Exercised \| shares	(5,335)
Options, Outstanding, Ending balance \| shares	27,317	33,321
Options, Vested and exercisable \| shares	17,930
Weighted-Average Exercise Price, Beginning balance \| $ / shares	$ 10.58
Weighted-Average Exercise Price, Forfeited / Cancelled \| $ / shares	12.59
Weighted-Average Exercise Price, Exercised \| $ / shares	8.77
Weighted-Average Exercise Price, Ending balance \| $ / shares	10.89	$ 10.58
Weighted-Average Exercise Price, Vested and exercisable \| $ / shares	$ 9.75
Weighted-Average Remaining Contractual Term (Years)	6 years 10 months 24 days	7 years 7 months 17 days
Weighted-Average Remaining Contractual Term (Years), Vested and exercisable	6 years 4 months 2 days
Aggregate intrinsic value, outstanding, Beginning balance \| $	$ 597,716
Aggregate intrinsic value, outstanding, Exercised \| $	93,054
Aggregate intrinsic value, outstanding, Ending balance \| $	206,075	$ 597,716
Aggregate intrinsic value, outstanding, Vested and exercisable \| $	$ 155,588
2024 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options, Outstanding, Beginning balance \| shares	2,400
Options, Forfeited / Cancelled \| shares	(63)
Options, Exercised \| shares	(14)
Options, Outstanding, Ending balance \| shares	2,323	2,400
Options, Vested and exercisable \| shares	586
Weighted-Average Exercise Price, Beginning balance \| $ / shares	$ 20
Weighted-Average Exercise Price, Forfeited / Cancelled \| $ / shares	20
Weighted-Average Exercise Price, Exercised \| $ / shares	20
Weighted-Average Exercise Price, Ending balance \| $ / shares	20	$ 20
Weighted-Average Exercise Price, Vested and exercisable \| $ / shares	$ 20
Weighted-Average Remaining Contractual Term (Years)	8 years 8 months 26 days	9 years 6 months 21 days
Weighted-Average Remaining Contractual Term (Years), Vested and exercisable	8 years 6 months 10 days
Aggregate intrinsic value, outstanding, Beginning balance \| $	$ 20,447
Aggregate intrinsic value, outstanding, Exercised \| $	$ 114
Aggregate intrinsic value, outstanding, Ending balance \| $		$ 20,447

Debt - Additional Information (Details) - Revolving Credit Facility	9 Months Ended
	Sep. 30, 2025 USD ($)
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 150,000,000
Debt instrument, maturity date	Oct. 27, 2028
Debt instrument variable interest rate basis	The ABR is defined as, for any day, a rate per annum equal to the greatest of (a) the prime rate in effect on such day, (b) the Federal Reserve Bank of New York (NYFRB) rate in effect on such day plus ½ of 1% and (c) Term SOFR for a one month interest period on such day (or if such day is not a Business Day, the immediately preceding business day) plus 1%.
Undrawn portion of credit facility, percentage of fees per annum	0.25%
Debt instrument, covenant terms	The Company must also not permit the ratio of indebtedness to total recurring revenue for the most recent trailing four quarters to exceed 0.50 to 1.00, and is required to maintain $50.0 million in liquidity.
Debt instrument covenant liquidity amount to maintain	$ 50,000,000
Minimum
Line of Credit Facility [Line Items]
Debt liquidity ratio	0.50%
Maximum
Line of Credit Facility [Line Items]
Debt liquidity ratio	1.00%
ABR Loans
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.50%
SOFR Loans
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.50%

Significant Accounting Policies - Additional Information (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 Segment	Dec. 31, 2024 USD ($)
Accounting Policies [Abstract]
Number of operating segment \| Segment	1
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]	srt:ChiefExecutiveOfficerMember
Segment reporting, CODM, profit (loss) measure, how used, description	The Company’s CODM allocates resources and assesses performance based upon financial information on a consolidated basis, primarily using consolidated net income (loss) as the measure of profit or loss to make key operating decisions. Consolidated expense information, as presented on the condensed consolidated statements of operations, is regularly provided to the CODM.
Deferred offering costs \| $		$ 7,200

Related Party Transactions - Additional Information (Details) - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2025

Sep. 30, 2024

Sep. 30, 2025

Sep. 30, 2024

Company paid

^[1]

$ 30,639

$ 83,040

$ 99,559

$ 119,916

DataSense LLC | Software Development Services Agreement

Company paid

$ 1,900

[1]	Amounts include certain expenses incurred with related parties. Refer to Note 13 in the accompanying notes for 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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-Section 50
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-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-3

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
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-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(1))
-Publisher FASB
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
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-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

+ Details

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS/ MEMBERS EQUITY (Unaudited) - USD ($) $ in Thousands	Total	IPO	Member's Interest	Member's Interest IPO	Common Stock Class A Common Stock	Common Stock Class A Common Stock IPO	Common Stock Class C Common Stock	Common Stock Class C Common Stock IPO	Common Stock Class D Common Stock	Common Stock Class D Common Stock IPO	Additional Paid-in Capital	Additional Paid-in Capital IPO	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) IPO	Accumulated Deficit	Accumulated Deficit IPO	Non-controlling Interests	Non-controlling Interests IPO
Beginning balance at Dec. 31, 2023	$ 106,526		$ 281,306										$ (625)		$ (174,155)
Net (loss) income	(4,959)														(4,959)
Equity-based compensation	1,113		1,113
Foreign currency translation	(179)												(179)
Ending balance at Mar. 31, 2024	102,501		282,419										(804)		(179,114)
Beginning balance at Dec. 31, 2023	106,526		281,306										(625)		(174,155)
Net (loss) income	(262,154)
Foreign currency translation	(31)
Ending balance (in units) at Sep. 30, 2024					28,265,084		74,135,230		132,081,358
Ending balance at Sep. 30, 2024	458,208				$ 3		$ 7		$ 13		$ 630,354		(450)		(299,885)		$ 128,166
Beginning balance at Mar. 31, 2024	102,501		282,419										(804)		(179,114)
Net (loss) income	(7,850)														(7,850)
Equity-based compensation	2,719		2,719
Units issued in connection with acquisition, value	244		244
Foreign currency translation	(96)												(96)
Ending balance at Jun. 30, 2024	97,518		285,382										(900)		(186,964)
Net (loss) income	(1,835)														(1,835)
Equity-based compensation	1,096		1,096
Foreign currency translation	64												64
Ending balance at Jul. 23, 2024	96,843		286,478										(836)		(188,799)
Beginning balance at Jun. 30, 2024	97,518		285,382										(900)		(186,964)
Net (loss) income	(249,345)
Foreign currency translation	244
Ending balance (in units) at Sep. 30, 2024					28,265,084		74,135,230		132,081,358
Ending balance at Sep. 30, 2024	458,208				$ 3		$ 7		$ 13		630,354		(450)		(299,885)		128,166
Beginning balance at Jul. 23, 2024	96,843		$ 286,478										(836)		(188,799)
Net (loss) income	(247,510)														(170,108)		(77,402)
Effect of Reorganization Transactions				$ (286,478)				$ 7		$ 13		$ 286,458
Effect of Reorganization Transactions, Shares								74,135,230		132,081,358
Equity-based compensation	54,452	$ 204,435									52,259	204,435					2,193
Issuance of Class A common stock sold in initial public offering, net of underwriting discounts, commissions and offering costs						27,715,770
Issuance of Class A common stock sold in initial public offering, net of underwriting discounts, commissions and offering costs, value		402,530				$ 3						402,527
Exercise of common unit options, shares					90,084	459,230
Exercise of common unit options, value	690	3,251									690	3,251
Repurchase of LLC Units		$ (56,663)										(56,663)
Allocation of equity to non-controlling interests												$ (262,603)		$ 261		$ 59,022		$ 203,320
Foreign currency translation	180												125				55
Ending balance (in units) at Sep. 30, 2024					28,265,084		74,135,230		132,081,358
Ending balance at Sep. 30, 2024	458,208				$ 3		$ 7		$ 13		630,354		(450)		(299,885)		128,166
Beginning balance (in units) at Dec. 31, 2024					51,456,091		63,929,619		122,196,307
Beginning balance at Dec. 31, 2024	490,958				$ 5		$ 6		$ 12		718,084		(599)		(331,334)		104,784
Net (loss) income	(32,651)														(24,016)		(8,635)
Equity-based compensation	37,909										35,205						2,704
Exercise of common unit options, shares					1,811,775
Exercise of common unit options, value	15,274										15,274
Vesting of restricted stock units					7,414
Effect of exchange of Class C Common Stock, shares					598,404		(598,404)
Effect of exchange of Class C Common Stock, value											1,198						(1,198)
Effect of conversions of Class D common stock, shares					21,335,418				(21,335,418)
Effect of conversions of Class D common stock, value					$ 2				$ (2)
Foreign currency translation	725												533				192
Non-controlling interest adjustment for changes in proportionate ownership in OneStream Software LLC											(1,477)						1,477
Ending balance (in units) at Mar. 31, 2025					75,209,102		63,331,215		100,860,889
Ending balance at Mar. 31, 2025	512,215				$ 7		$ 6		$ 10		768,284		(66)		(355,350)		99,324
Beginning balance (in units) at Dec. 31, 2024					51,456,091		63,929,619		122,196,307
Beginning balance at Dec. 31, 2024	490,958				$ 5		$ 6		$ 12		718,084		(599)		(331,334)		104,784
Net (loss) income	(68,952)
Effect of exchange of Class C Common Stock, value	195,200
Effect of conversions of Class D common stock, shares					24,433,133
Foreign currency translation	1,831
Ending balance (in units) at Sep. 30, 2025					89,918,545		55,780,105		97,763,174
Ending balance at Sep. 30, 2025	562,868				$ 9		$ 5		$ 9		853,956		753		(382,632)		90,768
Beginning balance (in units) at Mar. 31, 2025					75,209,102		63,331,215		100,860,889
Beginning balance at Mar. 31, 2025	512,215				$ 7		$ 6		$ 10		768,284		(66)		(355,350)		99,324
Net (loss) income	(24,810)														(18,432)		(6,378)
Equity-based compensation	31,434										29,874						1,560
Exercise of common unit options, shares					3,010,950
Exercise of common unit options, value	26,579										26,579
Vesting of restricted stock units					313,606
Effect of exchange of Class C Common Stock, shares					6,834,814		(6,834,814)
Effect of exchange of Class C Common Stock, value					$ 1		$ (1)				14,612						(14,612)
Effect of conversions of Class D common stock, shares					2,648,807				(2,648,807)
Effect of conversions of Class D common stock, value					$ 1				$ (1)
Foreign currency translation	1,206												896				310
Non-controlling interest adjustment for changes in proportionate ownership in OneStream Software LLC											(8,243)						8,243
Ending balance (in units) at Jun. 30, 2025					88,017,279		56,496,401		98,212,082
Ending balance at Jun. 30, 2025	546,624				$ 9		$ 5		$ 9		831,106		830		(373,782)		88,447
Net (loss) income	(11,491)														(8,850)		(2,641)
Equity-based compensation	25,219										24,084						1,135
Exercise of common unit options, shares					525,838
Exercise of common unit options, value	5,200										5,200
Vesting of restricted stock units, net of common stock withheld for net share settlement					210,224
Vesting of restricted stock units, net of common stock withheld for net share settlement, value	(2,584)										(2,584)
Effect of exchange of Class C Common Stock, shares					716,296		(716,296)
Effect of exchange of Class C Common Stock, value											1,596						(1,596)
Effect of conversions of Class D common stock, shares					448,908				(448,908)
Foreign currency translation	(100)												(77)				(23)
Non-controlling interest adjustment for changes in proportionate ownership in OneStream Software LLC											(5,446)						5,446
Ending balance (in units) at Sep. 30, 2025					89,918,545		55,780,105		97,763,174
Ending balance at Sep. 30, 2025	$ 562,868				$ 9		$ 5		$ 9		$ 853,956		$ 753		$ (382,632)		$ 90,768

Pay vs Performance Disclosure - USD ($) $ in Thousands	2 Months Ended	3 Months Ended		9 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Pay vs Performance Disclosure
Net Income (Loss)	$ (170,108)	$ (8,850)	$ (171,943)	$ (51,298)	$ (184,752)

- Definition

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

+ References

+ Details

Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2025

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Loss Per Share

The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share amounts):


	Three Months Ended September 30, 2025			Nine Months Ended September 30, 2025			July 24, 2024 through September 30, 2024
Numerator:
Net loss	$	(11,491	)	$	(68,952	)	$	(247,510	)
Less: net loss attributable to non-controlling interests		(2,641	)		(17,654	)		(77,402	)
Net loss attributable to OneStream, Inc.	$	(8,850	)	$	(51,298	)	$	(170,108	)
Denominator:
Weighted-average shares of Class A and Class D common stock outstanding–basic and diluted		186,629			179,930			160,300
Net loss per share:
Net loss per share of Class A and Class D common stock–basic and diluted	$	(0.05	)	$	(0.29	)	$	(1.06	)

Schedule of Outstanding Share Totals with Potentially Dilutive Impact

The following table contains outstanding share totals with a potentially dilutive impact (in thousands):


	Three Months Ended September 30, 2025		Nine Months Ended September 30, 2025		July 24, 2024 through September 30, 2024
Stock options		29,640		29,640		39,101
RSUs		5,627		5,627		187
Purchase rights committed under the ESPP		617		561		—
Total		35,884		35,828		39,288

Property and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Property, Plant and Equipment [Abstract]
Depreciation and amortization expense	$ 0.8	$ 0.7	$ 2.3	$ 2.1

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References + Details

Net Loss Per Share

9 Months Ended

Sep. 30, 2025

Earnings Per Share [Abstract]

Net Loss Per Share

NOTE 11 – NET LOSS PER SHARE

The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share amounts):


	Three Months Ended September 30, 2025			Nine Months Ended September 30, 2025			July 24, 2024 through September 30, 2024
Numerator:
Net loss	$	(11,491	)	$	(68,952	)	$	(247,510	)
Less: net loss attributable to non-controlling interests		(2,641	)		(17,654	)		(77,402	)
Net loss attributable to OneStream, Inc.	$	(8,850	)	$	(51,298	)	$	(170,108	)
Denominator:
Weighted-average shares of Class A and Class D common stock outstanding–basic and diluted		186,629			179,930			160,300
Net loss per share:
Net loss per share of Class A and Class D common stock–basic and diluted	$	(0.05	)	$	(0.29	)	$	(1.06	)

Shares of Class B common stock and Class C common stock do not share in the earnings or losses of OneStream, Inc. and therefore are not considered participating securities. As such, separate presentation of basic and diluted net loss per share of Class B and Class C common stock under the two-class method has not been presented.

The potentially dilutive shares of common stock are computed using the treasury stock method and are comprised of outstanding stock options, RSUs and purchase rights committed under the ESPP. The effect of the Company’s potentially dilutive securities was not included in the calculation of diluted loss per share as the effect would be anti-dilutive.

The following table contains outstanding share totals with a potentially dilutive impact (in thousands):


	Three Months Ended September 30, 2025		Nine Months Ended September 30, 2025		July 24, 2024 through September 30, 2024
Stock options		29,640		29,640		39,101
RSUs		5,627		5,627		187
Purchase rights committed under the ESPP		617		561		—
Total		35,884		35,828		39,288

Debt

9 Months Ended

Sep. 30, 2025

Debt Disclosure [Abstract]

Debt

NOTE 6 – DEBT

Revolving Credit Facility

The Company has a revolving credit facility with a syndicate of banks that allows the Company to borrow up to $150.0 million for working capital and for other general corporate purposes through October 27, 2028. The Company did not have any amounts drawn under the Credit Facility in any period presented.

Under the terms of the Credit Facility, the Company has the option to borrow funds as either a secured overnight financing rate (SOFR) loan or alternate base rate (ABR) loan. Any advances drawn on the Credit Facility incur interest at an annual rate equal to the SOFR plus 250 basis points for SOFR loans and ABR plus 150 basis points for ABR loans. The SOFR is defined as, for any day, a rate per annum equal to SOFR for the day (such day, the SOFR Determination Date) that is five (5) U.S. Government Securities Business Day prior to (i) if such SOFR rate day is a U.S. Government Securities Business Day, such SOFR Rate Day or (ii) if such SOFR rate day is not a U.S. Government Securities Business Day, the U.S. Government Securities Business Day immediately preceding such SOFR rate day, in each case, as such SOFR is published by the SOFR Administrator on the SOFR Administrator’s Website. The ABR is defined as, for any day, a rate per annum equal to the greatest of (a) the prime rate in effect on such day, (b) the Federal Reserve Bank of New York (NYFRB) rate in effect on such day plus ½ of 1% and (c) Term SOFR for a one month interest period on such day (or if such day is not a Business Day, the immediately preceding business day) plus 1%. Any undrawn portion of the Credit Facility is subject to a fee of 0.25% per annum. SOFR interest payments for interest periods of 3 months or less are due at the end of the interest period. SOFR interest payments for interest periods greater than 3 months are due on 3-month intervals following the borrowing. ABR interest and fees are payable quarterly in arrears with the principal and any accrued and unpaid interest due on October 27, 2028. Interest expense on the Credit Facility is recorded in the condensed consolidated statements of operations as interest expense, net and fees are recorded as general and administrative expenses. Interest expense and fees on the Credit Facility were not material during the three and nine months ended September 30, 2025 and 2024.

Under the terms of the Credit Facility, the Company must maintain compliance with certain negative and affirmative covenants, including financial covenants and covenants relating to the incurrence of other indebtedness, the occurrence of a material adverse change, the disposition of assets, mergers, acquisitions and investments, the granting of liens, and the payment of dividends. The Company must also not permit the ratio of indebtedness to total recurring revenue for the most recent trailing four quarters to exceed 0.50 to 1.00, and

is required to maintain $50.0 million in liquidity. The Credit Facility is secured by substantially all the assets of the Company. The Company was compliant with the financial covenants contained in the agreement as of September 30, 2025.

- 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

Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2025

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Commitments under Leases, Service Agreements and Other Contractual

The Company’s future minimum commitments under leases, service agreements and other contractual commitments as of September 30, 2025 are as follows (in thousands):


	Operating Lease Obligations			Future Purchase Obligations
Years ending December 31,
2025 (remaining 3 months)	$	1,139		$	10,550
2026		4,232			9,552
2027		3,055			1,254
2028		2,817			107
2029		2,676			—
2030 and thereafter		6,768			—
Total payments		20,687		$	21,463
Less: imputed interest		(2,716	)
Less: lease incentives		(111	)
Less: leases less than 12 months		(163	)
Total lease liabilities	$	17,697

Non-controlling Interests - Summary of Ownership of the LLC Units (Parenthetical) (Details) - shares	Sep. 30, 2025	Dec. 31, 2024
Continuing Members
Noncontrolling Interest [Line Items]
LLC Units subject to vesting conditions	706,511	1,071,806

Non-controlling Interests (Tables)

9 Months Ended

Sep. 30, 2025

Noncontrolling Interest [Abstract]

Summary of Ownership of LLC Units

The ownership of the LLC Units is summarized as follows:


	Ownership							Ownership Percentage
	OneStream, Inc.		Continuing Members(1)			Total		OneStream, Inc.			Continuing Members(1)			Total
Balances as of December 31, 2024		173,652,398		62,857,813			236,510,211		73.4	%		26.6	%		100.0	%
Exchange of Class C common stock		8,149,514		(8,149,514	)		—		3.4	%		(3.4	)%		—
Vesting of LLC Units		—		365,295			365,295		—			—			—
Issuance of LLC Units in connection with equity-based compensation plans		5,879,807		—			5,879,807		0.5	%		(0.5	)%		—
Balances as of September 30, 2025		187,681,719		55,073,594			242,755,313		77.3	%		22.7	%		100.0	%

(1) Excludes 706,511 and 1,071,806 LLC Units still subject to vesting conditions at September 30, 2025 and December 31, 2024, respectively.

Revenue Recognition - Schedule of Disaggregation of Revenues by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 154,303	$ 129,140	$ 438,202	$ 356,932
United States
Disaggregation of Revenue [Line Items]
Total revenue	102,099	91,164	289,425	248,507
Other
Disaggregation of Revenue [Line Items]
Total revenue	$ 52,204	$ 37,976	$ 148,777	$ 108,425

- 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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- 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

Organization and Description of Business - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			9 Months Ended
	Jul. 25, 2024	Jul. 23, 2024	Sep. 30, 2024
Class of Stock [Line Items]
Net proceeds from IPO			$ 409,598
OneStream Software LLC \| Initial Public Offering
Class of Stock [Line Items]
Net proceeds from IPO	$ 409,600
Purchase of issued and outstanding LLC units	$ 56,700
Shares issued and outstanding LLC units	3,006,037
Newly issued common LLC units	18,723,296
Net proceeds from LLC units	$ 352,900
Underwriting discounts and commissions	$ 25,000
Number of outstanding units issued in transaction		8,632,763
Reclassified number of units issued in transaction		6,591,178
Class A common stock \| OneStream Software LLC \| Initial Public Offering
Class of Stock [Line Items]
Number of shares issued in transaction	21,729,333
Public offering price	$ 20
Price per share	$ 0.0001
Class A common stock \| OneStream Software LLC \| Initial Public Offering \| Existing Stockholders
Class of Stock [Line Items]
Number of shares issued in transaction	6,445,667
Class A common stock \| OneStream Software LLC \| Initial Public Offering \| Executive Officers and Other Employees
Class of Stock [Line Items]
Number of share issued upon exercise of options granted	459,230
Class D Common Stock \| OneStream Software LLC \| Initial Public Offering \| Existing Stockholders
Class of Stock [Line Items]
Shares converted into equal number of shares	5,986,437

Related Party Transactions

9 Months Ended

Sep. 30, 2025

Related Party Transactions

NOTE 13 – RELATED PARTY TRANSACTIONS

DataSense

Prior to the Company’s acquisition of DataSense LLC (DataSense) in the second quarter of 2024, the Company was a party to consulting and software development services agreements with DataSense. The Company’s co-founder, chairman, CEO and president, Thomas Shea, is the father of Andrew Shea, who was the chief executive officer and an equity holder in DataSense until its acquisition by the Company. The Company paid $1.9 million in 2024 through the acquisition date of May 1, 2024 under the consulting and software development services agreements with DataSense, which are included in the Company’s research and development expenses.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

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-URI https://asc.fasb.org/850/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-6

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

+ Details

Significant Accounting Policies

9 Months Ended

Sep. 30, 2025

Accounting Policies [Abstract]

Significant Accounting Policies

NOTE 2 – SIGNIFICANT ACCOUNTING POLICIES

Significant Accounting Policies

There have been no material changes in the Company’s significant accounting policies as of and for the nine months ended September 30, 2025, as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 filed with the Securities and Exchange Commission (SEC) on February 27, 2025.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and applicable rules and regulations of the SEC regarding interim financial information. The condensed consolidated financial statements include the results of the Company and its wholly owned subsidiaries. As the Reorganization Transactions are considered transactions between entities under common control, the financial statements for periods prior to the IPO and Reorganization Transactions have been adjusted to combine the previously separate entities for presentation purposes. Prior to the Reorganization Transactions, OneStream, Inc. had no operations. All significant intercompany transactions and balances have been eliminated during consolidation.

The unaudited condensed consolidated financial statements have been prepared on the same basis as the annual financial statements and reflect all normal recurring adjustments necessary to present fairly the balance sheets, statements of operations, statements of comprehensive loss, statements of stockholders’ / members’ equity and statements of cash flows for the interim periods, but are not necessarily indicative of the results to be expected for the full year or any other future period. Certain information and disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC for interim financial information.

These unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes for the year ended December 31, 2024 included in the Company’s Annual Report on Form 10-K.

Use of Estimates

The preparation of the Company’s condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and the accompanying footnotes. Management bases its estimates on historical experience and on various other market-specific and relevant assumptions that management believes to be reasonable under the circumstances. Actual results could differ from those estimates.

Segment Information

The Company operates in one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker (CODM), who, in the Company’s case, is the Chief Executive Officer (CEO), in deciding how to allocate resources and assessing performance. The Company’s CODM allocates resources and assesses performance based upon financial information on a consolidated basis, primarily using consolidated net income (loss) as the measure of profit or loss to make key operating decisions. Consolidated expense information, as presented on the condensed consolidated statements of operations, is regularly provided to the CODM.

Deferred Offering Costs

Deferred offering costs consist primarily of accounting, legal and other fees related to the Company’s IPO. During the year ended December 31, 2024, the Company capitalized $7.2 million of offering costs related to the 2024 IPO, and after completion of the IPO, these costs were reclassified into stockholders’ / members’ equity as a reduction against the proceeds received from the IPO.

Concentration of Risk and Significant Customers

Financial instruments that subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. The Company maintains its cash deposits with high-quality financial institutions with investment-grade ratings. The majority of the Company’s cash balances are with U.S. banks and are insured to the extent defined by the Federal Deposit Insurance Corporation (FDIC) and may, at times, exceed FDIC limits.

No customer accounted for more than 10% of total revenue and no customer accounted for more than 10% of total accounts receivable in any period presented.

The Company relies upon a limited number of third-party hosted cloud computing vendors to serve customers and operate certain aspects of its services, such as environments for production, and development usage. Given this, any disruption of or interference at the hosted infrastructure partners would impact the Company’s operations and the Company’s business could be adversely impacted.

Equity-based Compensation

The Company has issued equity-based awards to employees in the form of restricted stock units (RSUs) and stock options, as discussed in Note 10, and, prior to the Reorganization Transactions, OneStream Software LLC issued ICUs and common unit options. The Company accounts for equity-based awards based on their grant date fair values. Determining the grant date fair values of equity-based awards may require management to make assumptions and judgments. These assumptions reflect the Company’s best estimates, but they involve inherent uncertainties based on market conditions. As a result, if other assumptions are used, equity-based compensation costs could be materially impacted. Equity-based compensation expense is recognized on a straight-line basis for awards with service-only vesting conditions, whereas awards with performance conditions are recognized using the accelerated attribution method. Forfeitures are accounted for as they occur.

The Company offers an Employee Stock Purchase Plan (ESPP) which is accounted for in accordance with Accounting Standards Codification (ASC) 718, Compensation—Stock Compensation, and generally recognizes equity-based compensation expense on a straight-line basis over the term of each offering period. The Company uses a Black-Scholes option pricing model to determine the fair value of the ESPP awards as of the beginning of the offering period. Certain features of the ESPP may require the Company to apply modification accounting as outlined in ASC 718. Refer to Note 10, Equity-based Compensation, for further details on the Company’s equity-based compensation awards.

Net Loss per Share

Basic net loss per share for the three and nine months ended September 30, 2025 is computed by dividing net loss attributable to OneStream, Inc. by the weighted-average number of shares of Class A common stock and Class D common stock outstanding during the period, excluding dilutive shares. Diluted net loss per share is computed by giving effect to the weighted-average potentially dilutive shares for the applicable period, including additional shares of Class D common stock issuable upon redemption of LLC Units held by Continuing Members, and Class A common stock issuable pursuant to outstanding stock options, RSUs and purchase rights committed under the ESPP, as applicable. The potentially dilutive shares of common stock are computed using the treasury stock method. Diluted net loss per share for all periods presented is the same as basic net loss per share as the inclusion of potentially issuable shares would be anti-dilutive.

All losses and earnings for the period prior to the IPO were entirely allocable to OneStream Software LLC. Due to the impact of the Reorganization Transactions, the Company’s capital structure for the pre- and post-IPO periods is not comparable. As a result, the presentation of net loss per share for the periods prior to the IPO and Reorganization Transactions is not meaningful and only net loss per share for periods subsequent to the IPO and Reorganization Transactions are presented herein.

Recently Issued Accounting Pronouncements Not Yet Adopted

In September 2025, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) No. 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40). This pronouncement is effective for public business entities in fiscal years beginning after December 15, 2027, and interim periods within fiscal years beginning after December 15, 2027. The standard allows for adoption on a prospective or retrospective basis. The Company is currently considering timing of adoption and in the process of evaluating the impact of adopting this guidance on the condensed consolidated financial statements and related disclosures.

Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2025

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment, Net

The Company’s property and equipment, net consisted of the following (in thousands):


	As of
	September 30, 2025			December 31, 2024
Leasehold improvements	$	8,836		$	9,038
Capitalized software costs		5,801			5,264
Furniture and equipment		3,975			3,767
Construction in progress		52			244
Gross property and equipment		18,664			18,313
Less: Accumulated depreciation and amortization		(10,174	)		(8,229	)
Property and equipment, net	$	8,490		$	10,084

Non-controlling Interests - Summary of Ownership of the LLC Units (Details)

9 Months Ended

Sep. 30, 2025

Noncontrolling Interest [Line Items]

Ownership, Balances as of December 31, 2024

236,510,211

Ownership, Vesting of LLC Units

365,295

Ownership, Issuance of LLC Units in connection with equity-based compensation plans

5,879,807

Ownership, Balances as of March 31, 2025

242,755,313

Ownership Percentage, Balances as of December 31, 2024

100.00%

Ownership Percentage, Balances as of March 31, 2025

100.00%

OneStream, Inc.

Noncontrolling Interest [Line Items]

Ownership, Balances as of December 31, 2024

173,652,398

Ownership, Exchange of Class C common stock

8,149,514

Ownership, Issuance of LLC Units in connection with equity-based compensation plans

5,879,807

Ownership, Balances as of March 31, 2025

187,681,719

Ownership Percentage, Balances as of December 31, 2024

73.40%

Ownership Percentage, Exchange of Class C common stock

3.40%

Ownership Percentage, Issuance of LLC Units in connection with equity-based compensation plans

0.50%

Ownership Percentage, Balances as of March 31, 2025

77.30%

Continuing Members

Noncontrolling Interest [Line Items]

Ownership, Balances as of December 31, 2024

62,857,813

^[1]

Ownership, Exchange of Class C common stock

(8,149,514)

^[1]

Ownership, Vesting of LLC Units

365,295

^[1]

Ownership, Balances as of March 31, 2025

55,073,594

^[1]

Ownership Percentage, Balances as of December 31, 2024

26.60%

^[1]

Ownership Percentage, Exchange of Class C common stock

(3.40%)

^[1]

Ownership Percentage, Issuance of LLC Units in connection with equity-based compensation plans

(0.50%)

^[1]

Ownership Percentage, Balances as of March 31, 2025

22.70%

^[1]

[1]	Excludes 706,511 and 1,071,806 LLC Units still subject to vesting conditions at September 30, 2025 and December 31, 2024, respectively.

Property and Equipment

9 Months Ended

Sep. 30, 2025

Property, Plant and Equipment [Abstract]

Property and Equipment

NOTE 4 – PROPERTY AND EQUIPMENT

The Company’s property and equipment, net consisted of the following (in thousands):


	As of
	September 30, 2025			December 31, 2024
Leasehold improvements	$	8,836		$	9,038
Capitalized software costs		5,801			5,264
Furniture and equipment		3,975			3,767
Construction in progress		52			244
Gross property and equipment		18,664			18,313
Less: Accumulated depreciation and amortization		(10,174	)		(8,229	)
Property and equipment, net	$	8,490		$	10,084

Depreciation and amortization expense was $0.8 million and $0.7 million for the three months ended September 30, 2025 and 2024, respectively, and $2.3 million and $2.1 million for the nine months ended September 30, 2025 and 2024, respectively.

Non-controlling Interests - Additional Information (Details) - OneStream, Inc.	Sep. 30, 2025
Noncontrolling Interest [Line Items]
Ownership percentage	77.30%
OneStream Software LLC
Noncontrolling Interest [Line Items]
Ownership percentage, Noncontrolling interest	22.70%

Revenue Recognition - Additional Information (Details-1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-07-01 $ in Millions	Sep. 30, 2025 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Aggregate amount of the transaction price	$ 1,238.0
Expects to recognize revenue over next 12 months, percentage	40.00%
Remaining performance obligation, expected timing of satisfaction, period	12 months

Stockholders' / Members' Equity - Additional Information (Details)	3 Months Ended			9 Months Ended
	Sep. 30, 2025 $ / shares shares	Jun. 30, 2025 shares	Mar. 31, 2025 shares	Sep. 30, 2025 $ / shares shares	Dec. 31, 2024 $ / shares shares	Sep. 30, 2024 shares
Class of Stock [Line Items]
Preferred stock, shares authorized	100,000,000			100,000,000	100,000,000
Preferred stock, par value \| $ / shares	$ 0.0001			$ 0.0001	$ 0.0001
Preferred stock, shares outstanding	0			0	0
Recapitalization of OneStream Software LLC \| LLC Units
Class of Stock [Line Items]
Stock outstanding ratio				1
OneStream, Inc \| Recapitalization of OneStream Software LLC
Class of Stock [Line Items]
Common stock, shares outstanding	80,324,378			80,324,378
OneStream, Inc \| Recapitalization of OneStream Software LLC \| LLC Units
Class of Stock [Line Items]
Shares outstanding	6,591,178			6,591,178
Class A common stock
Class of Stock [Line Items]
Common stock, shares authorized	2,500,000,000			2,500,000,000	2,500,000,000
Common stock, par value \| $ / shares	$ 0.0001			$ 0.0001	$ 0.0001
Common stock, voting rights				Each share of Class A common stock is entitled to one vote per share and has economic rights.
Common stock, shares outstanding	89,918,545			89,918,545	51,456,091
Common stock, shares, issued	89,918,545			89,918,545	51,456,091
Class A common stock \| LLC Units
Class of Stock [Line Items]
Number of units redeemed	716,296			8,149,514
Class A common stock \| Common Stock
Class of Stock [Line Items]
Shares converted into equal number of shares	448,908	2,648,807	21,335,418	24,433,133
Shares outstanding	89,918,545	88,017,279	75,209,102	89,918,545	51,456,091	28,265,084
Class B common stock
Class of Stock [Line Items]
Common stock, shares authorized	300,000,000			300,000,000	300,000,000
Common stock, par value \| $ / shares	$ 0.0001			$ 0.0001	$ 0.0001
Common stock, voting rights				Each share of Class B common stock is entitled to one vote per share, is cancellable upon the redemption or exchange of one LLC Unit for cash or one share of Class A common stock and has no economic rights.
Common stock, shares outstanding	0			0	0
Common stock, shares, issued	0			0	0
Class C Common Stock
Class of Stock [Line Items]
Common stock, shares authorized	300,000,000			300,000,000	300,000,000
Common stock, par value \| $ / shares	$ 0.0001			$ 0.0001	$ 0.0001
Common stock, voting rights				Each share of Class C common stock is entitled to ten votes per share, is cancellable upon the redemption or exchange of one LLC Unit for cash or one share of Class D common stock, is convertible into one share of Class B common stock and has no economic rights.
Common stock, shares outstanding	55,780,105			55,780,105	63,929,619
Common stock, shares, issued	55,780,105			55,780,105	63,929,619
Class C Common Stock \| Common Stock
Class of Stock [Line Items]
Shares outstanding	55,780,105	56,496,401	63,331,215	55,780,105	63,929,619	74,135,230
Class C Common Stock \| Recapitalization of OneStream Software LLC
Class of Stock [Line Items]
Shares issued and outstanding LLC units	3,006,037			3,006,037
Common stock, shares, issued	74,135,230			74,135,230
Class D Common Stock
Class of Stock [Line Items]
Common stock, shares authorized	600,000,000			600,000,000	600,000,000
Common stock, par value \| $ / shares	$ 0.0001			$ 0.0001	$ 0.0001
Common stock, voting rights				Each share of Class D common stock is entitled to ten votes per share, is convertible into one share of Class A common stock and has economic rights.
Common stock, shares outstanding	97,763,174			97,763,174	122,196,307
Common stock, shares, issued	97,763,174			97,763,174	122,196,307
Class D Common Stock \| Common Stock
Class of Stock [Line Items]
Shares converted into equal number of shares	(448,908)	(2,648,807)	(21,335,418)
Shares outstanding	97,763,174	98,212,082	100,860,889	97,763,174	122,196,307	132,081,358
Class D Common Stock \| Recapitalization of OneStream Software LLC
Class of Stock [Line Items]
Shares converted into equal number of shares				5,986,437
Common stock, shares, issued	132,081,358			132,081,358
Preferred stock \| Recapitalization of OneStream Software LLC \| LLC Units
Class of Stock [Line Items]
Stock outstanding ratio				1
Preferred stock \| OneStream, Inc \| Recapitalization of OneStream Software LLC
Class of Stock [Line Items]
Shares outstanding	128,293,508			128,293,508
Incentive stock \| OneStream, Inc \| Recapitalization of OneStream Software LLC
Class of Stock [Line Items]
Shares outstanding	8,632,763			8,632,763

Equity-Based Compensation - Summary of Restricted Stock Unit Activity (Details) - RSUs shares in Thousands	9 Months Ended
	Sep. 30, 2025 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
RSU, Outstanding, Beginning balance \| shares	355
RSU, Granted \| shares	6,116
RSU, Vested \| shares	(662)
RSU, Forfeited / Cancelled \| shares	(182)
RSU, Outstanding, Ending Balance \| shares	5,627
Weighted-Average Grant Date Fair Value, Beginning Balance \| $ / shares	$ 29.48
Weighted-Average Grant Date Fair Value, Granted \| $ / shares	23.44
Weighted-Average Grant Date Fair Value, Vested \| $ / shares	23.84
Weighted-Average Grant Date Fair Value, Forfeited / Cancelled \| $ / shares	23.98
Weighted-Average Grant Date Fair Value, Ending Balance \| $ / shares	$ 23.76

Revenue Recognition - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Allowance for doubtful accounts	$ 2.3	$ 2.3		$ 1.9
Bad debt expense	0.9	1.5	$ 1.3
Revenue Recognized	$ 48.3	$ 218.0

Revenue Recognition

9 Months Ended

Sep. 30, 2025

Revenue from Contract with Customer [Abstract]

Revenue Recognition

NOTE 12 – REVENUE RECOGNITION

The Company derives revenue primarily from sales of subscription services, which consists of revenue from software-as-a-service (SaaS), cloud computing and post-contract customer support (PCS). Subscription revenue from SaaS and PCS is recognized ratably over the contractual term of the arrangement, beginning on the date the service is made available to the customer, and revenue from cloud computing is recognized on a consumption basis during the contractual term of the arrangement. The Company also derives revenue from the sales of software licenses and from professional services. License revenue is recognized at the point in time when the customer is able to use and benefit from the software and revenue from professional services and other is recognized as the services are performed.

Disaggregation of Revenue

Revenue by geographic region, based on the physical location of the customer, was as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
United States	$	102,099	$	91,164	$	289,425	$	248,507
Other		52,204		37,976		148,777		108,425
Total revenue	$	154,303	$	129,140	$	438,202	$	356,932

No foreign country accounted for 10% or more of revenue in any period presented.

Contract Balances

Accounts receivable are recorded at the invoice amount, net of allowance for credit losses. A receivable is recorded in the period the Company delivers products or provides services, or when it has an unconditional right to payment. In multi-year agreements, the Company generally invoices customers in equal annual installments at the beginning of each year within the contractual period. The Company records a receivable for multi-year licensed software, whether or not billed, to the extent it has an unconditional right to receive payment in the future related to those licenses.

The Company estimates the amount of uncollectible accounts receivable at the end of each reporting period and provides a reserve when needed based on an assessment of various factors, including the aging of the receivable balance, historical experience and expectations of forward-looking loss estimates. When developing the expectations of forward-looking loss estimates, the Company takes into consideration forecasts of future economic conditions, information about past events, such as historical trends of write-offs, and customer-specific circumstances, such as bankruptcies and disputes. Accounts receivable are written off when deemed uncollectible. As of September 30, 2025 and December 31, 2024, the balance in the allowance for credit losses was $2.3 million and $1.9 million, respectively. Bad debt expense, which is presented in the condensed consolidated statements of operations as general and administrative expenses, was $0.9 million for the three months ended September 30, 2025, and was $1.5 million and $1.3 million for the nine months ended September 30, 2025 and 2024, respectively. Bad debt expense was not material for the three months ended September 30, 2024.

Deferred revenue consists of customer billings in advance of revenue being recognized. The Company primarily invoices its customers for its SaaS arrangements, PCS and term-based software licenses in equal annual installments at the beginning of each year within the contractual period, though certain contracts require invoicing for the entire arrangement in advance. Amounts anticipated to be recognized within one year of the balance sheet date are recorded on the condensed consolidated balance sheets as deferred revenue, current; the remaining portion is recorded as deferred revenue, noncurrent.

The balance of deferred revenue will fluctuate based on timing of invoices and recognition of revenue. The amount of revenue recognized during the three and nine months ended September 30, 2025 that was included in deferred revenue at December 31, 2024 was $48.3 million and $218.0 million, respectively.

Remaining Performance Obligations

The aggregate amount of the transaction price allocated to remaining performance obligations as of September 30, 2025 was $1,238.0 million. The Company expects to recognize approximately 40% of this amount as revenue in the next 12 months with the remaining balance recognized thereafter.

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-9

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
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-URI https://asc.fasb.org/1943274/2147479806/606-10-50-10

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-15

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
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-Section 50
-Paragraph 12
-Subparagraph (a)
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-URI https://asc.fasb.org/1943274/2147479806/606-10-50-12

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 12
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-12

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 12
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org/606/tableOfContent

+ Details

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net loss	$ (11,491)	$ (249,345)	$ (68,952)	$ (262,154)
Other comprehensive (loss) income:
Foreign currency translation	(100)	244	1,831	(31)
Comprehensive loss	(11,591)	(249,101)	(67,121)	(262,185)
Less: Comprehensive loss attributable to non-controlling interests	(2,664)	(77,347)	(17,175)	(77,347)
Comprehensive loss attributable to OneStream, Inc.	$ (8,927)	$ (171,754)	$ (49,946)	$ (184,838)

- 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

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 20
-SubTopic 10
-Topic 810
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

- Definition

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

+ References + Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

+ Details

Business Combinations - Additional Information (Details) - Asset Purchase Agreement $ in Millions	3 Months Ended
	Jun. 30, 2025 USD ($) DevelopedSolution
Business Combination [Line Items]
Number of acquired partner developed solutions \| DevelopedSolution	3
Purchase consideration \| $	$ 3.7

- 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

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Operating activities:
Net loss	$ (68,952)	$ (262,154)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	3,247	2,586
Noncash operating lease expense	1,981	2,303
Amortization of deferred commissions	17,749	15,206
Equity-based compensation	94,562	263,815
Other noncash operating activities, net	1,361	(1,402)
Changes in operating assets and liabilities:
Accounts receivable, net	(19,227)	967
Deferred commissions	(20,477)	(18,610)
Prepaid expenses and other assets	2,994	(1,395)
Accounts payable	13,137	15,720
Deferred revenue	38,915	27,349
Accrued and other liabilities	5,615	(8,371)
Net cash provided by operating activities	70,905	36,014
Investing activities:
Purchases of property and equipment	(924)	(2,177)
Acquisition of business, net of cash acquired	(3,700)	(7,594)
Net cash used in investing activities	(4,624)	(9,771)
Financing activities:
Payments of deferred offering costs	(1,763)	(4,943)
Payments for taxes related to net share settlement of equity awards	(2,150)
Proceeds from option exercises	47,081	3,941
Proceeds from initial public offering, net of underwriting discounts and commissions		409,598
Repurchase of LLC Units		(56,663)
Net cash provided by financing activities	43,168	351,933
Effect of exchange rate changes on cash and cash equivalents	228	195
Net increase in cash and cash equivalents	109,677	378,371
Cash and cash equivalents - Beginning of period	544,174	117,087
Cash and cash equivalents - End of period	653,851	495,458
Supplemental disclosures of noncash investing and financing activities
Purchases of property and equipment included in liabilities	72	239
Lease liabilities arising from obtaining right-of-use assets	$ 1,306	1,349
Deferred offering costs, accrued but unpaid		$ 2,128

Non-controlling Interests

9 Months Ended

Sep. 30, 2025

Noncontrolling Interest [Abstract]

Non-controlling Interests

NOTE 9 – NON-CONTROLLING INTERESTS

In connection with the Reorganization Transactions, OneStream, Inc. became the sole manager of OneStream Software LLC and accordingly consolidates the results of operations of OneStream Software LLC. The non-controlling interests balance on the Company’s condensed consolidated balance sheets represents the portion of LLC Units owned by the Continuing Members. Net loss is attributed to the non-controlling interests based on the weighted-average ownership percentages of LLC Units outstanding during the period, excluding LLC Units that are subject to vesting conditions. As of September 30, 2025, the non-controlling interests in OneStream Software LLC owned 22.7% with the remaining 77.3% owned by OneStream, Inc.

The ownership of the LLC Units is summarized as follows:


	Ownership							Ownership Percentage
	OneStream, Inc.		Continuing Members(1)			Total		OneStream, Inc.			Continuing Members(1)			Total
Balances as of December 31, 2024		173,652,398		62,857,813			236,510,211		73.4	%		26.6	%		100.0	%
Exchange of Class C common stock		8,149,514		(8,149,514	)		—		3.4	%		(3.4	)%		—
Vesting of LLC Units		—		365,295			365,295		—			—			—
Issuance of LLC Units in connection with equity-based compensation plans		5,879,807		—			5,879,807		0.5	%		(0.5	)%		—
Balances as of September 30, 2025		187,681,719		55,073,594			242,755,313		77.3	%		22.7	%		100.0	%

(1) Excludes 706,511 and 1,071,806 LLC Units still subject to vesting conditions at September 30, 2025 and December 31, 2024, respectively.

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Sep. 30, 2025 shares
Trading Arrangements, by Individual
Material Terms of Trading Arrangement	During the three months ended September 30, 2025, the following officer adopted a Rule 10b5-1 trading arrangement as defined in Regulation S-K Item 408, as follows: On August 22, 2025, Ken Hohenstein, our chief revenue officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 524,204 shares of our Class A common stock. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until December 31, 2026, or earlier if all transactions under the trading arrangement are completed. During the three months ended September 30, 2025, no other directors or officers, as defined in Rule 16a-1(f), adopted, modified or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K.
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
Rule 10b5-1 Arrangement Modified	false
Non-Rule 10b5-1 Arrangement Modified	false
Ken Hohenstein [Member]
Trading Arrangements, by Individual
Name	Ken Hohenstein
Title	chief revenue officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	August 22, 2025
Expiration Date	December 31, 2026
Arrangement Duration	497 days
Aggregate Available	524,204

Commitments and Contingencies - Schedule of Future Minimum Commitments under Leases, Service Agreements and Other Contractual (Details) $ in Thousands	Sep. 30, 2025 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Operating Lease Obligations, 2025 (remaining 3 months)	$ 1,139
Operating Lease Obligations, 2026	4,232
Operating Lease Obligations, 2027	3,055
Operating Lease Obligations, 2028	2,817
Operating Lease Obligations, 2029	2,676
Operating Lease Obligations, 2030 and thereafter	6,768
Operating Lease Obligations, Total payments	20,687
Less: imputed interest	(2,716)
Less: lease incentives	(111)
Less: leases less than 12 months	(163)
Total lease liabilities	17,697
Future Purchase Obligations, 2025 (remaining 3 months)	10,550
Future Purchase Obligations, 2026	9,552
Future Purchase Obligations, 2027	1,254
Future Purchase Obligations, 2028	107
Future Purchase Obligations, Total Payments	$ 21,463

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)
shares in Thousands, $ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2025

Sep. 30, 2024

Sep. 30, 2025

Sep. 30, 2024

Revenues:

Total revenue

$ 154,303

$ 129,140

$ 438,202

$ 356,932

Cost of revenues:

Total cost of revenue

49,252

64,401

139,222

135,404

Gross profit

105,051

64,739

298,980

221,528

Operating expenses:

Sales and marketing

63,506

162,700

201,386

263,225

Research and development

^[1]

30,639

83,040

99,559

119,916

General and administrative

28,364

74,170

87,606

110,509

Total operating expenses

122,509

319,910

388,551

493,650

Loss from operations

(17,458)

(255,171)

(89,571)

(272,122)

Interest income, net

6,748

5,022

19,099

8,319

Other (expense) income, net

(900)

772

2,437

2,263

Loss before income taxes

(11,610)

(249,377)

(68,035)

(261,540)

(Benefit) provision for income taxes

(119)

(32)

917

614

Net loss

(11,491)

(249,345)

(68,952)

(262,154)

Less: net loss attributable to non-controlling interests

(2,641)

(77,402)

(17,654)

(77,402)

Net loss attributable to OneStream, Inc.

$ (8,850)

$ (171,943)

$ (51,298)

$ (184,752)

Class A and Class D common stock

Operating expenses:

Net loss per share of Class A and Class D common stock-basic

^[2]

$ (0.05)

$ (1.06)

$ (0.29)

$ (1.06)

Net loss per share of Class A and Class D common stock-diluted

^[2]

$ (0.05)

$ (1.06)

$ (0.29)

$ (1.06)

Weighted-average shares of Class A and Class D common stock outstanding-basic

^[2]

186,629

160,300

179,930

160,300

Weighted-average shares of Class A and Class D common stock outstanding-diluted

^[2]

186,629

160,300

179,930

160,300

Subscription

Revenues:

Total revenue

$ 140,930

$ 110,722

$ 399,660

$ 309,542

Cost of revenues:

Total cost of revenue

36,869

32,386

102,651

82,007

License

Revenues:

Total revenue

4,169

11,734

13,829

24,818

Professional services and other

Revenues:

Total revenue

9,204

6,684

24,713

22,572

Cost of revenues:

Total cost of revenue

$ 12,383

$ 32,015

$ 36,571

$ 53,397

[1]	Amounts include certain expenses incurred with related parties. Refer to Note 13 in the accompanying notes for details.
[2]	Represents net loss per share of Class A common stock and Class D common stock and weighted-average shares of Class A common stock and Class D common stock outstanding for the applicable periods following the Reorganization Transactions as described in Note 1, Organization and Description of Business. Refer to Note 11, Net Loss per Share, in the accompanying notes for additional details.

Significant Accounting Policies (Policies)	9 Months Ended
Significant Accounting Policies (Policies)	Sep. 30, 2025
Significant Accounting Policies [Line Items]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and applicable rules and regulations of the SEC regarding interim financial information. The condensed consolidated financial statements include the results of the Company and its wholly owned subsidiaries. As the Reorganization Transactions are considered transactions between entities under common control, the financial statements for periods prior to the IPO and Reorganization Transactions have been adjusted to combine the previously separate entities for presentation purposes. Prior to the Reorganization Transactions, OneStream, Inc. had no operations. All significant intercompany transactions and balances have been eliminated during consolidation. The unaudited condensed consolidated financial statements have been prepared on the same basis as the annual financial statements and reflect all normal recurring adjustments necessary to present fairly the balance sheets, statements of operations, statements of comprehensive loss, statements of stockholders’ / members’ equity and statements of cash flows for the interim periods, but are not necessarily indicative of the results to be expected for the full year or any other future period. Certain information and disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC for interim financial information. These unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes for the year ended December 31, 2024 included in the Company’s Annual Report on Form 10-K.
Use of Estimates	Use of Estimates The preparation of the Company’s condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and the accompanying footnotes. Management bases its estimates on historical experience and on various other market-specific and relevant assumptions that management believes to be reasonable under the circumstances. Actual results could differ from those estimates.
Segment Information	Segment Information The Company operates in one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker (CODM), who, in the Company’s case, is the Chief Executive Officer (CEO), in deciding how to allocate resources and assessing performance. The Company’s CODM allocates resources and assesses performance based upon financial information on a consolidated basis, primarily using consolidated net income (loss) as the measure of profit or loss to make key operating decisions. Consolidated expense information, as presented on the condensed consolidated statements of operations, is regularly provided to the CODM.
Deferred Offering Costs	Deferred Offering Costs Deferred offering costs consist primarily of accounting, legal and other fees related to the Company’s IPO. During the year ended December 31, 2024, the Company capitalized $7.2 million of offering costs related to the 2024 IPO, and after completion of the IPO, these costs were reclassified into stockholders’ / members’ equity as a reduction against the proceeds received from the IPO.
Concentration of Risk and Significant Customers	Concentration of Risk and Significant Customers Financial instruments that subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. The Company maintains its cash deposits with high-quality financial institutions with investment-grade ratings. The majority of the Company’s cash balances are with U.S. banks and are insured to the extent defined by the Federal Deposit Insurance Corporation (FDIC) and may, at times, exceed FDIC limits. No customer accounted for more than 10% of total revenue and no customer accounted for more than 10% of total accounts receivable in any period presented. The Company relies upon a limited number of third-party hosted cloud computing vendors to serve customers and operate certain aspects of its services, such as environments for production, and development usage. Given this, any disruption of or interference at the hosted infrastructure partners would impact the Company’s operations and the Company’s business could be adversely impacted.
Equity-based Compensation	Equity-based Compensation The Company has issued equity-based awards to employees in the form of restricted stock units (RSUs) and stock options, as discussed in Note 10, and, prior to the Reorganization Transactions, OneStream Software LLC issued ICUs and common unit options. The Company accounts for equity-based awards based on their grant date fair values. Determining the grant date fair values of equity-based awards may require management to make assumptions and judgments. These assumptions reflect the Company’s best estimates, but they involve inherent uncertainties based on market conditions. As a result, if other assumptions are used, equity-based compensation costs could be materially impacted. Equity-based compensation expense is recognized on a straight-line basis for awards with service-only vesting conditions, whereas awards with performance conditions are recognized using the accelerated attribution method. Forfeitures are accounted for as they occur. The Company offers an Employee Stock Purchase Plan (ESPP) which is accounted for in accordance with Accounting Standards Codification (ASC) 718, Compensation—Stock Compensation, and generally recognizes equity-based compensation expense on a straight-line basis over the term of each offering period. The Company uses a Black-Scholes option pricing model to determine the fair value of the ESPP awards as of the beginning of the offering period. Certain features of the ESPP may require the Company to apply modification accounting as outlined in ASC 718. Refer to Note 10, Equity-based Compensation, for further details on the Company’s equity-based compensation awards.
Net Loss per Share	Net Loss per Share Basic net loss per share for the three and nine months ended September 30, 2025 is computed by dividing net loss attributable to OneStream, Inc. by the weighted-average number of shares of Class A common stock and Class D common stock outstanding during the period, excluding dilutive shares. Diluted net loss per share is computed by giving effect to the weighted-average potentially dilutive shares for the applicable period, including additional shares of Class D common stock issuable upon redemption of LLC Units held by Continuing Members, and Class A common stock issuable pursuant to outstanding stock options, RSUs and purchase rights committed under the ESPP, as applicable. The potentially dilutive shares of common stock are computed using the treasury stock method. Diluted net loss per share for all periods presented is the same as basic net loss per share as the inclusion of potentially issuable shares would be anti-dilutive. All losses and earnings for the period prior to the IPO were entirely allocable to OneStream Software LLC. Due to the impact of the Reorganization Transactions, the Company’s capital structure for the pre- and post-IPO periods is not comparable. As a result, the presentation of net loss per share for the periods prior to the IPO and Reorganization Transactions is not meaningful and only net loss per share for periods subsequent to the IPO and Reorganization Transactions are presented herein.
Recently Issued Accounting Pronouncements Not Yet Adopted	Recently Issued Accounting Pronouncements Not Yet Adopted In September 2025, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) No. 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40). This pronouncement is effective for public business entities in fiscal years beginning after December 15, 2027, and interim periods within fiscal years beginning after December 15, 2027. The standard allows for adoption on a prospective or retrospective basis. The Company is currently considering timing of adoption and in the process of evaluating the impact of adopting this guidance on the condensed consolidated financial statements and related disclosures.

- Definition

Disclosure of accounting policy for segment reporting.

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+ Details

- Definition

Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.

+ References

+ Details

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2025	Oct. 31, 2025
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2025
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q3
Entity Registrant Name	OneStream, Inc.
Entity Central Index Key	0001889956
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Trading Symbol	OS
Entity File Number	001-42187
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-3199478
Entity Address, Address Line One	191 N. Chester Street
Entity Address, City or Town	Birmingham
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48009
City Area Code	248
Local Phone Number	650-1490
Document Quarterly Report	true
Document Transition Report	false
Class A common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		90,268,494
Class C Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		55,780,105
Class D Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		97,763,174

Business Combinations

9 Months Ended

Sep. 30, 2025

Business Combination [Abstract]

Business Combinations

NOTE 3 – BUSINESS COMBINATIONS

During the second quarter of 2025, the Company completed an acquisition of three partner-developed solutions for total purchase consideration of $3.7 million to enhance features and capabilities of the Company’s platform and drive further adoption of the Company’s product portfolio. The Company accounted for the acquisition using the acquisition method of accounting in accordance with ASC 805, Business Combinations. The acquisition was not material to the Company’s condensed consolidated financial statements.

- Definition

The entire disclosure for business combination.

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Equity-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2025

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Summary of Restricted Stock Unit Activity

The following table summarizes the RSU activity under the 2024 Plan during the nine months ended September 30, 2025 (in thousands, except per share data):


	RSUs			Weighted- Average Grant Date Fair Value per Share
Outstanding as of December 31, 2024		355		$	29.48
Granted		6,116			23.44
Vested		(662	)		23.84
Forfeited / Cancelled		(182	)		23.98
Outstanding as of September 30, 2025		5,627		$	23.76

Schedule of Equity-Based Compensation Expense

Equity-based compensation expense was classified as follows in the accompanying unaudited condensed consolidated statements of operations (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
Cost of subscription	$	534	$	4,981	$	1,874	$	4,981
Cost of professional services and other		1,344		21,886		4,571		21,886
Sales and marketing		9,377		114,713		35,019		115,987
Research and development		6,134		62,251		25,481		63,505
General and administrative		7,830		56,152		27,617		57,456
Total equity-based compensation	$	25,219	$	259,983	$	94,562	$	263,815

2019 Common Unit Option Plan

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Schedule of Stock Option Activity

The following table summarizes the option activity under the 2019 Plan during the nine months ended September 30, 2025 (in thousands, except per share data):


	Options			Weighted- Average Exercise Price per Share		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding as of December 31, 2024		33,321		$	10.58		7.63	$	597,716
Forfeited / Cancelled		(669	)		12.59
Exercised		(5,335	)		8.77				93,054
Outstanding as of September 30, 2025		27,317		$	10.89		6.90	$	206,075
Vested and exercisable as of September 30, 2025		17,930		$	9.75		6.34	$	155,588

2024 Equity Incentive Plan

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Schedule of Stock Option Activity

The following table summarizes the option activity under the 2024 Plan during the nine months ended September 30, 2025 (in thousands, except per share data):


	Options			Weighted- Average Exercise Price per Share		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding as of December 31, 2024		2,400		$	20.00		9.56	$	20,447
Forfeited / Cancelled		(63	)		20.00
Exercised		(14	)		20.00				114
Outstanding as of September 30, 2025		2,323		$	20.00		8.74	$	—
Vested and exercisable as of September 30, 2025		586		$	20.00		8.53	$	—

- 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

Commitments and Contingencies

9 Months Ended

Sep. 30, 2025

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

NOTE 5 – COMMITMENTS AND CONTINGENCIES

Commitments

The Company leases office space under non-cancelable operating leases with various expiration dates from 2025 to 2034.

The Company’s future minimum commitments under leases, service agreements and other contractual commitments as of September 30, 2025 are as follows (in thousands):


	Operating Lease Obligations			Future Purchase Obligations
Years ending December 31,
2025 (remaining 3 months)	$	1,139		$	10,550
2026		4,232			9,552
2027		3,055			1,254
2028		2,817			107
2029		2,676			—
2030 and thereafter		6,768			—
Total payments		20,687		$	21,463
Less: imputed interest		(2,716	)
Less: lease incentives		(111	)
Less: leases less than 12 months		(163	)
Total lease liabilities	$	17,697

In June 2022, the Company entered into a five-year consumption agreement with a vendor whereby the Company committed to purchase $300.0 million of data center, cloud and IT services with no minimum annual spending requirement (excluded from the table above). In November 2024, the agreement was amended to increase the existing purchase commitment from $300.0 million to $360.0 million. As of September 30, 2025, the total remaining commitment under this agreement was $144.3 million.

Guarantees and Indemnifications

The Company’s cloud computing and licensed software sales agreements normally include indemnification provisions for customer liabilities resulting from third-party claims that its products infringe third-party intellectual property rights. To date, the Company has not incurred any material costs as a result of such indemnifications and has not accrued any liabilities related to such obligations in its consolidated financial statements. Certain of the Company’s sales agreements also include indemnification provisions for customer liabilities incurred as a result of a breach of confidentiality. The Company’s cloud computing service provider indemnifies the Company for up to 24 months of fees for data breaches. It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited and infrequent history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement.

The Company includes service level commitments to its customers, typically regarding certain levels of uptime reliability and performance, and if the Company fails to meet those levels, customers can receive credits and, in limited cases, terminate their relationship with the Company. To date, the Company has not incurred any material costs as a result of such commitments.

The Company is occasionally required, for various reasons, to enter into financial guarantees with third parties in the ordinary course of business including, among others, guarantees related to letters of credit on behalf of parties with whom it conducts business. Such agreements have not had a material effect on the Company’s unaudited condensed consolidated financial statements.

The Company has also agreed to indemnify its board of directors and executive officers for costs associated with any fees, expenses, judgments, fines and settlement amounts incurred by any of these persons in any action or proceeding to which any of those persons is, or is threatened to be, made a party by reason of the person’s service as a board member or officer, including any action by the Company, arising out of that person’s services as the Company’s board member or officer or that person’s services provided to any other company or enterprise at the Company’s request. The Company has maintained board member and officer insurance coverage that would generally enable the Company to recover a portion of any future amounts paid. The Company may also be subject to indemnification obligations by law with respect to the actions of its employees under certain circumstances and in certain jurisdictions.