Rambus officer proposes $851K common stock sale

The notice identifies 3,028 shares acquired as restricted stock on April 1, 2022, and 1,972 shares on April 1, 2023.

Accepted by SEC EDGAR 06/03/2026 - 04:22 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Rambus Inc. (RMBS) officer Necip Sayiner's notice lists a proposed sale of 5,000 common shares, with an aggregate market value of $850,750 and an approximate sale date of June 3, 2026. Morgan Stanley Smith Barney LLC is named as the broker, and NASDAQ as the securities exchange. Sayiner's reported prior sale was 9,824 common shares on May 8, 2026, for gross proceeds of $1,278,888.32.

Key Figures

Proposed sale shares: 5,000 common shares Aggregate market value: $850,750 Common shares outstanding: 108,136,967 shares +4 more

7 metrics

Proposed sale shares 5,000 common shares Approximate sale date: June 3, 2026

Aggregate market value $850,750 Proposed sale

Common shares outstanding 108,136,967 shares Securities information

Prior sale shares 9,824 common shares Sale on May 8, 2026

Gross proceeds $1,278,888.32 Prior sale on May 8, 2026

Restricted stock acquired 3,028 shares Acquired from the issuer on April 1, 2022

Restricted stock acquired 1,972 shares Acquired from the issuer on April 1, 2023

Key Terms

Restricted Stock, Aggregate Market Value, Gross Proceeds

3 terms

Restricted Stock financial

"Nature of Acquisition Transaction: Restricted Stock"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Aggregate Market Value financial

"Aggregate Market Value"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Gross Proceeds financial

"Gross Proceeds"

The total amount of cash a company receives from a financing event or sale before any fees, expenses, taxes or deductions are taken out. Investors watch gross proceeds because it shows the raw scale of new capital being raised—think of it as the paycheck amount before withholdings—which helps assess how much funding is available for operations, growth, debt payoff or how much shareholder dilution might occur once costs are removed.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many RMBS shares did Necip Sayiner propose to sell?

Necip Sayiner's notice lists 5,000 common shares for sale, with an aggregate market value of $850,750 and an approximate sale date of June 3, 2026.

How many RMBS shares did Necip Sayiner sell recently?

The notice reports that Sayiner sold 9,824 common shares on May 8, 2026, for gross proceeds of $1,278,888.32.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001338515
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	RAMBUS INC.
SEC File Number	000-22339
Address of Issuer	4453 North First Street Suite 100 San Jose CALIFORNIA 95134
Phone	(408) 462-8000
Name of Person for Whose Account the Securities are To Be Sold	NECIP SAYINER
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5000	850750.00	108136967	06/03/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	04/01/2023	Restricted Stock	Issuer			1972	04/01/2023	Not Applicable
Common	04/01/2022	Restricted Stock	Issuer			3028	04/01/2022	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
NECIP SAYINER 4453 North First Street Suite 100 San Jose CA 95134	Common	05/08/2026	9824	1278888.32

144: Remarks and Signature

Remarks
Date of Notice	06/03/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Necip Sayiner
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)