Ken Hohenstein - 10 Dec 2025 Form 4 Insider Report for OneStream, Inc. (OS)

Role: Chief Revenue Officer
Signature: /s/ Holly Koczot, attorney-in-fact
Issuer symbol: OS
Transactions as of: 10 Dec 2025
Net transactions value: -$112,136
Form type: 4
Filing time: 12 Dec 2025, 16:03:42 UTC
Previous filing: 19 Nov 2025
Next filing: 18 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Hohenstein Ken	Chief Revenue Officer	C/O ONESTREAM, INC., 191 N. CHESTER STREET, BIRMINGHAM	/s/ Holly Koczot, attorney-in-fact	12 Dec 2025	0002031265

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OS	Class A Common Stock	Tax liability	$112,136	-6,101	-0.61%	$18.38	990,961	10 Dec 2025	Direct	F1, F2
holding	OS	Class A Common Stock						790,279	10 Dec 2025	See Footnote	F3

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

Explanation of Responses:

Id	Content
F1	Represents shares that have been withheld by the Issuer to satisfy the Reporting Person's tax withholding and remittance obligations in connection with the net settlement of restricted stock units and does not represent a sale by the Reporting Person.
F2	The shares reported include unvested restricted stock units.
F3	Shares held by the Hohenstein Purple Elephant 2019 Irrevocable Grantor Trust (the "Hohenstein Purple Elephant Trust"). The Reporting Person may be deemed to have voting and dispositive power over the shares held by the Hohenstein Purple Elephant Trust.