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Non-controlling Interests (Tables)

3 Months Ended

Mar. 31, 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			598,404				(598,404	)			—				0.3	%			(0.3	)%			—
Vesting of LLC Units			—				62,504				62,504				—				—				—
Issuance of LLC Units in connection with equity-based compensation plans			1,819,189				—				1,819,189				0.2	%			(0.2	)%			—
Balances as of March 31, 2025			176,069,991				62,321,913				238,391,904				73.9	%			26.1	%			100.0	%

(1) Excludes 1,009,302 and 1,071,806 LLC Units still subject to vesting conditions at March 31, 2025 and December 31, 2024, respectively.

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Summary of Ownership of LLC Units.

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