Rambus director lists $505K planned share sale

Kissner & Associates, LLC is identified as the seller; the securities table lists two RSU acquisitions dated October 1, 2013, and October 1, 2014.

Accepted by SEC EDGAR 08/07/2026 - 04:02 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Charles Kissner, a director of Rambus Inc. (RMBS), reported a planned sale of 5,000 common shares by Kissner & Associates, LLC. The listed aggregate market value is $504,600, and the approximate sale date is August 7, 2026. UBS Financial Services Inc. is listed as the broker.

The securities table lists 4,235 shares acquired as RSUs on October 1, 2013, and 765 shares acquired as RSUs on October 1, 2014. The form also lists May 8, 2026 as the plan-adoption or instruction date if relying on Rule 10b5-1.

Key Figures

Shares listed for sale: 5,000 common shares Aggregate market value: $504,600 Shares acquired as RSUs: 4,235 shares +3 more

6 metrics

Shares listed for sale 5,000 common shares Planned sale by Kissner & Associates, LLC

Aggregate market value $504,600 For the shares listed for sale

Shares acquired as RSUs 4,235 shares Acquired October 1, 2013

Shares acquired as RSUs 765 shares Acquired October 1, 2014

Approximate sale date August 7, 2026 Planned sale

Plan-adoption or instruction date May 8, 2026 Listed for Rule 10b5-1 reliance

Key Terms

RSU, Rule 10b5-1, attorney-in-fact, Aggregate Market Value

4 terms

RSU financial

"Nature of Acquisition Transaction: RSU"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

Rule 10b5-1 regulatory

"Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

attorney-in-fact technical

"UBS Financial Services Inc, as attorney-in-fact for Charles Kissner"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

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.

FAQ

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

How many RMBS shares is Charles Kissner selling?

Kissner & Associates, LLC is identified as selling 5,000 common shares, with a listed aggregate market value of $504,600.

When is the planned RMBS share sale expected?

The approximate sale date listed is August 7, 2026.

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	0001188095
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	KISSNER CHARLES
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	Director

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	UBS Financial Services Inc. 11 Madison Avenue 4th Floor New York NY 10010	5000	504600.00	108461603	08/07/2026	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	10/01/2013	RSU	Issuer			4235	10/01/2013	N/A
Common	10/01/2014	RSU	Issuer			765	10/01/2014	N/A

* 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

Nothing to Report

144: Remarks and Signature

Remarks	The shares covered by this filing are being sold by Kissner & Associates, LLC
Date of Notice	08/07/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/08/2026
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/ UBS Financial Services Inc, as attorney-in-fact for Charles Kissner
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)