Rambus (RMBS) legal chief John Shinn sells 4,557 shares under 10b5-1 plan

Rhea-AI Filing Summary

Rambus Inc. senior vice president and general counsel John Shinn reported open‑market sales of 4,557 shares of common stock. On March 3, 2026, he sold 2,254 shares at an average price of $92.7704, 1,603 shares at $94.0698, and 700 shares at $94.8871. The filing states these transactions were made under a pre‑arranged Rule 10b5‑1 trading plan adopted on December 2, 2025. After the sales, Shinn directly owned 23,023 Rambus shares.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Shinn John

(Last) (First) (Middle)

C/O RAMBUS INC

4453 NORTH FIRST ST, SUITE 100

(Street)

SAN JOSE CA 95134

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
RAMBUS INC [ RMBS ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
03/03/2026

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/03/2026		S(1)		2,254	D	$92.7704(2)	25,326	D
Common Stock	03/03/2026		S(1)		1,603	D	$94.0698(3)	23,723	D
Common Stock	03/03/2026		S(1)		700	D	$94.8871(4)	23,023	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 2, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.20 to $93.20, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.475 to $94.385, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.62 to $95.115, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

	/s/Brian Wu, by power of attorney	03/04/2026
	** 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 4 (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 insider transaction did Rambus (RMBS) report for John Shinn?

Rambus reported that senior vice president and general counsel John Shinn sold 4,557 shares of common stock. The Form 4 shows three open‑market sale transactions on March 3, 2026, at different weighted average prices, leaving him with 23,023 shares held directly afterward.

On what date did Rambus (RMBS) executive John Shinn sell shares?

John Shinn’s reported sales of Rambus common stock occurred on March 3, 2026. The Form 4 lists three separate open‑market sale transactions executed that day under a pre‑arranged Rule 10b5‑1 trading plan adopted on December 2, 2025.

How many Rambus (RMBS) shares did John Shinn sell and at what prices?

John Shinn sold a total of 4,557 Rambus shares. The transactions were 2,254 shares at $92.7704, 1,603 shares at $94.0698, and 700 shares at $94.8871, each described as a weighted average price for multiple trades within the stated ranges.

How many Rambus (RMBS) shares does John Shinn own after the reported sales?

Following the reported open‑market sales, John Shinn directly owns 23,023 shares of Rambus common stock. The Form 4’s post‑transaction share figure comes from the last listed transaction dated March 3, 2026, and reflects his remaining direct holdings.

Was John Shinn’s Rambus (RMBS) stock sale under a Rule 10b5-1 plan?

Yes. A footnote states the Rambus stock sale was effected under a Rule 10b5‑1 trading plan. That plan was adopted on December 2, 2025, allowing pre‑scheduled transactions executed automatically according to predefined instructions.