[Form 3] OneStream, Inc. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Sridharan Baskar filed an initial Form 3 reporting his relationship to OneStream, Inc. (OS) as a director. The event date is 10/03/2025. The filing states no securities are beneficially owned by the reporting person. The form is signed by Holly Koczot, attorney-in-fact on 10/07/2025, indicating the filing was executed by an authorized representative.

Positive

• Clear disclosure of director status for Sridharan Baskar
• Explicit statement that no securities are beneficially owned

Negative

• None.

Insights

Corporate Governance Analyst

Initial director filing shows no reported holdings.

The filing documents that Sridharan Baskar is a director of OneStream, Inc. (OS) with an event date of 10/03/2025 and declares zero beneficial ownership of the issuer's securities. This is an explicit disclosure rather than an omission because the filing's explanation line states no securities are beneficially owned.

This situation means there is currently no insider stock position to monitor for trades or potential conflicts of interest; any future ownership or transactions would require additional Section 16 filings when they occur.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Sridharan Baskar

(Last) (First) (Middle)

C/O ONESTREAM, INC.

191 N. CHESTER STREET

(Street)

BIRMINGHAM MI 48009

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/03/2025

3. Issuer Name and Ticker or Trading Symbol
OneStream, Inc. [ OS ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Holly Koczot, attorney-in-fact	10/07/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Sridharan Baskar report on the OneStream (OS) Form 3?

The filing states Sridharan Baskar is a director and reports no securities beneficially owned as of 10/03/2025.

Does the Form 3 show any shares or options owned by the reporting person?

No. The form includes an explicit explanation: No securities are beneficially owned.

Who signed the Form 3 and when was it signed?

The form is signed by Holly Koczot, attorney-in-fact on 10/07/2025.

What is the reporting relationship to OneStream (OS)?

The reporting person is listed as a Director of OneStream, Inc. (OS).

Will future ownership changes by this director require additional filings?

Yes. Any future acquisition or disposition of securities by the director would require additional Section 16 filings such as Form 4 or an amendment to this Form 3.