RMBS Rule 144 Notice: 1,000 Restricted Shares

Rule 144 notice filed for RMBS reporting restricted shares for resale.

Rhea-AI Filing Summary

Rule 144 notice filed for RMBS reporting restricted shares for resale. The filing lists 1,000 restricted shares to be sold with a dated restriction of 02/01/2026. The filing also reports two recent transactions by John Shinn: 4,556 shares on 03/10/2026 for $404,007.86 and 4,557 shares on 03/03/2026 for $426,319.20.

Insights

Securities Compliance Counsel

Filing is a routine Rule 144 resale notice listing restricted shares and recent sales.

Rule 144 filings notify the market of a holder's intent or compliance with resale conditions. This excerpt lists 1,000 restricted shares dated 02/01/2026 and two completed sales by John Shinn in March 2026 with gross proceeds shown.

Cash‑flow treatment and whether the 1,000 shares will be sold through a broker are not specified in the excerpt; subsequent transaction details would appear in trading reports or additional filings.

Key Figures

Restricted shares to be sold: 1,000 shares Sale on 03/10/2026: 4,556 shares Sale on 03/03/2026: 4,557 shares +1 more

4 metrics

Restricted shares to be sold 1,000 shares Restricted stock dated 02/01/2026

Sale on 03/10/2026 4,556 shares Proceeds $404,007.86

Sale on 03/03/2026 4,557 shares Proceeds $426,319.20

Broker‑dealer Morgan Stanley Smith Barney LLC Executive Financial Services, 1 New York Plaza

Key Terms

Restricted Stock, Rule 144, Broker‑dealer

3 terms

Restricted Stock regulatory

"Common | 02/01/2026 | 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.

Rule 144 regulatory

"144: Filer Information"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Broker‑dealer financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

FAQ

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

What does the RMBS Rule 144 filing disclose?

The filing discloses 1,000 restricted shares dated 02/01/2026 available for resale and two March 2026 sales by John Shinn of 4,556 and 4,557 shares with stated proceeds.

Who is listed as the broker or intermediary in the RMBS filing?

The excerpt lists Morgan Stanley Smith Barney LLC Executive Financial Services with an address at 1 New York Plaza, 8th Floor, New York, NY, indicating the broker‑dealer involved in the resale distribution.

What were the proceeds from the recent John Shinn sales reported?

The filing shows proceeds of $404,007.86 for 4,556 shares sold on 03/10/2026 and $426,319.20 for 4,557 shares sold on 03/03/2026, as stated in the excerpt.

Does the Rule 144 filing state how the 1,000 restricted shares will be sold?

The excerpt lists the class and number (1,000 restricted shares) with the restriction date 02/01/2026, but it does not specify the method or timing of any resale transactions for those shares.

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

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Accepted by SEC EDGAR 05/22/2026 - 04:04 PM Learn about SEC filing dates

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	1000	143630.00	108136967	05/22/2026	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	Restricted Stock	Issuer			1000	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	03/10/2026	4556	404007.86
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	05/22/2026
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/ John Shinn
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)