RAMBUS INC — Director's Dealing 2026

Mar 4, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: RAMBUS INC (RMBS)
CIK: 0000917273
Period of Report: 2026-03-02

Reporting Person: Seraphin Luc (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-02	Common Stock	S	1679	$95.8312	Disposed	369305	Direct
2026-03-02	Common Stock	S	7225	$97.3798	Disposed	362080	Direct
2026-03-02	Common Stock	S	13654	$98.2182	Disposed	348426	Direct
2026-03-02	Common Stock	S	9469	$99.1659	Disposed	338957	Direct
2026-03-02	Common Stock	S	6587	$100.1979	Disposed	332370	Direct
2026-03-02	Common Stock	S	1300	$101.6538	Disposed	331070	Direct

Footnotes

F1: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025.

F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $95.59 to $96.40, 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.

F3: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $96.64 to $97.64, 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.

F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $97.68 to $98.64, 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.

F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $98.69 to $99.635, 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.

F6: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $99.875 to $100.85, 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.

F7: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $101.28 to $102.17, 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.