Baskar Sridharan - 03 Oct 2025 Form 4 Insider Report for OneStream, Inc. (OS)

Role: Director
Signature: /s/ Holly Koczot, attorney-in-fact
Issuer symbol: OS
Transactions as of: 03 Oct 2025
Net transactions value: $0
Form type: 4
Filing time: 07 Oct 2025, 17:51:32 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sridharan Baskar	Director	C/O ONESTREAM, INC., 191 N. CHESTER STREET, BIRMINGHAM	/s/ Holly Koczot, attorney-in-fact	07 Oct 2025	0002089784

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OS	Class A Common Stock	Award	$0	+21,609		$0.000000	21,609	03 Oct 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents an equal number of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock on the date it vests. One-third (1/3rd) of the shares subject to the RSUs shall vest on each anniversary following October 3, 2025, subject to the Reporting Person continuing to serve as an Outside Director (as defined in the Issuer's Outside Director Compensation Policy) through each applicable vesting date.

Content

Represents an equal number of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock on the date it vests. One-third (1/3rd) of the shares subject to the RSUs shall vest on each anniversary following October 3, 2025, subject to the Reporting Person continuing to serve as an Outside Director (as defined in the Issuer's Outside Director Compensation Policy) through each applicable vesting date.