Rambus (RMBS) gains 5% institutional stake from T. Rowe Price

Rhea-AI Filing Summary

T. Rowe Price Associates, Inc. has filed a Schedule 13G reporting a passive ownership stake in Rambus Inc. common stock. The firm beneficially owns 5,385,603 shares, representing 5.0% of the outstanding common stock as of the event date 12/31/2025.

T. Rowe Price reports sole voting power over 5,338,341 shares and sole dispositive power over 5,385,570 shares, with no shared voting or dispositive power. The securities are stated to be held in the ordinary course of business and not for the purpose of changing or influencing control of Rambus.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

RAMBUS INC

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

750917106

(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. 750917106

1

Names of Reporting Persons

T. Rowe Price Associates, Inc.

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

MARYLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 5,338,341.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 5,385,570.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,385,603.00

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)

5.0 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: RAMBUS INC
(b)	Address of issuer's principal executive offices: 4453 NORTH FIRST STREET, SUITE 100, SAN JOSE, CA, 95134
Item 2.
(a)	Name of person filing: T. Rowe Price Associates, Inc.
(b)	Address or principal business office or, if none, residence: 1307 Point Street, Baltimore, MD 21231
(c)	Citizenship: Maryland
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP No.: 750917106
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).
Item 4.	Ownership
(a)	Amount beneficially owned: 5385603
(b)	Percent of class: 5.0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 5338341
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 5385570
	(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.
	Not Applicable
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. T. Rowe Price Associates, Inc. hereby declares and affirms that the filing of Schedule 13G shall not be construed as an admission that Price Associates is the beneficial owner of the securities referred to, which beneficial ownership is expressly denied.

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.

T. Rowe Price Associates, Inc.

Signature:	Ellen York
Name/Title:	Vice President
Date:	02/17/2026

FAQ

What stake in Rambus (RMBS) does T. Rowe Price Associates report?

T. Rowe Price Associates reports a passive ownership of 5,385,603 Rambus common shares, representing 5.0% of the class. This level of beneficial ownership triggers a Schedule 13G filing under SEC rules for institutional holders crossing the 5% threshold.

Does T. Rowe Price intend to influence control of Rambus (RMBS)?

The filing states the Rambus shares were acquired and are held in the ordinary course of business, not to change or influence control. It also notes they are not held in connection with any control-related transaction, other than limited nomination activities under the specified SEC rule.

How much voting power does T. Rowe Price have over Rambus (RMBS) shares?

T. Rowe Price reports sole voting power over 5,338,341 Rambus common shares and no shared voting power. This means it alone can vote that block of shares, which is a significant portion of its total reported beneficial ownership.

What dispositive power does T. Rowe Price hold over Rambus (RMBS) stock?

T. Rowe Price reports sole dispositive power over 5,385,570 Rambus shares and no shared dispositive power. Dispositive power refers to the authority to sell or otherwise dispose of the securities for client accounts it manages.

When did T. Rowe Price’s 5% ownership in Rambus (RMBS) become reportable?

The event date requiring this Schedule 13G filing is listed as 12/31/2025. That date reflects when T. Rowe Price’s beneficial ownership reached or was measured at the reported 5.0% level of Rambus’s outstanding common stock.

Who signed the Schedule 13G for Rambus (RMBS) on behalf of T. Rowe Price?

The Schedule 13G is signed by Ellen York, identified as a Vice President of T. Rowe Price Associates, Inc. The signature section certifies that the ownership information provided is true, complete, and correct to the best of her knowledge and belief.