RMBS Form 144: Proposed sale of Common shares

RMBS submitted a Form 144 notice reporting proposed sales of Common stock.

Accepted by SEC EDGAR 03/10/2026 - 04:11 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

RMBS submitted a Form 144 notice reporting proposed sales of Common stock. The filing lists Performance Shares dated 02/01/2026 and identifies Morgan Stanley Smith Barney LLC Executive Financial Services as the broker. A prior sale by John Shinn on 03/03/2026 is shown with an amount of 426,319.20.

Insights

Corporate Governance Analyst

Form 144 notifies the market of proposed resale activity by an affiliate or holder.

The filing lists proposed sales of Common shares tied to Performance Shares with an effective date of 02/01/2026, and a broker identified as Morgan Stanley Smith Barney LLC. This is a regulatory notice rather than a company operational disclosure.

Cash‑flow treatment and final transaction amounts are not shown beyond the reported 426,319.20 sale by John Shinn on 03/03/2026; subsequent Form 4 or transaction reports would show completed trades.

FAQ

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

What does the RMBS Form 144 report?

It reports proposed resale of Common shares tied to Performance Shares dated 02/01/2026. The filing names Morgan Stanley Smith Barney LLC as broker and shows a prior sale by John Shinn on 03/03/2026 for 426,319.20.

Who is the broker listed on the RMBS Form 144?

The broker is listed as Morgan Stanley Smith Barney LLC Executive Financial Services. The filing provides the broker's address at 1 New York Plaza, 8th Floor, New York, NY 10004 and associates brokerage handling with the proposed sales.

Does the Form 144 show completed sales for RMBS?

The Form 144 primarily shows proposed sales; it also cites a sale by John Shinn on 03/03/2026 for 426,319.20. Final trade confirmations or Form 4 filings would indicate completed transactions and exact share counts.

What security type is being offered in the RMBS filing?

The filing references Common stock and specifically lists Performance Shares with a date of 02/01/2026. The document ties the resale notice to that security class rather than to other instrument types.

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	0001847137
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	JOHN SHINN
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	4556	404007.86	107790732	03/10/2026	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	02/01/2026	Performance Shares	ISSUER			4556	02/01/2026	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
JOHN SHINN 4453 North First Street Suite 100 San Jose CA 95134	Common	03/03/2026	4557	426319.20

144: Remarks and Signature

Remarks
Date of Notice	03/10/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/02/2025
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/ John Shinn
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)