Norges Bank (OS) discloses 6.6% Onestream stake in updated 13G filing

Rhea-AI Filing Summary

Norges Bank, the central bank of Norway, has filed an amended Schedule 13G reporting its beneficial ownership in Onestream Inc (OS) common stock. As of 12/31/2025, Norges Bank reports beneficial ownership of 5,974,029 shares of common stock, representing 6.6% of the class. It has sole power to vote and dispose of all these shares, with no shared voting or dispositive power.

The filing notes that certain shares are invested on behalf of the Government of Norway. Norges Bank certifies that the securities were acquired and are held in the ordinary course of business, and not for the purpose of changing or influencing control of Onestream Inc, nor in connection with any control-related transaction.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

Onestream Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

68278B107

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 68278B107

1

Names of Reporting Persons

Norges Bank

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

NORWAY

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 5,974,029.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 5,974,029.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,974,029.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

FI, OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Onestream Inc
(b)	Address of issuer's principal executive offices: 191 N Chester St., Birmingham, US-MI, 48009, US
Item 2.
(a)	Name of person filing: Norges Bank
(b)	Address or principal business office or, if none, residence: Bankplassen 2, PO Box 1179 Sentrum, Oslo, NO-0107, Oslo, Norway
(c)	Citizenship: Norway
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 68278B107
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
	investment adviser
Item 4.	Ownership
(a)	Amount beneficially owned: 5,974,029
(b)	Percent of class: 6.6 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 5,974,029
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 5,974,029
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Certain shares reported herein are invested on behalf of the Government of Norway.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to the investment management division of Norges Bank, the central bank of Norway, is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Norges Bank

Signature:	Stanislav Boiadjiev
Name/Title:	Business and Regulatory Compliance
Date:	01/26/2026

FAQ

How many Onestream Inc (OS) shares does Norges Bank report owning?

Norges Bank reports beneficial ownership of 5,974,029 shares of Onestream Inc common stock as of 12/31/2025.

What percentage of Onestream Inc (OS) does Norges Bank beneficially own?

Norges Bank reports beneficial ownership of 6.6% of the outstanding common stock of Onestream Inc.

Does Norges Bank have sole or shared voting power over its Onestream (OS) shares?

Norges Bank reports sole voting power and sole dispositive power over all 5,974,029 shares, with no shared voting or dispositive power.

For what purpose does Norges Bank hold its Onestream Inc (OS) position?

Norges Bank certifies that the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing the control of Onestream Inc.

Are any of the reported Onestream Inc (OS) shares held on behalf of another party?

The filing states that certain shares reported by Norges Bank are invested on behalf of the Government of Norway.

What type of reporting person is Norges Bank in this Schedule 13G/A for Onestream (OS)?

Norges Bank is identified as an investment adviser and classified as type FI (financial institution) in the filing.