[144] RAMBUS INC SEC Filing

Rhea-AI Filing Summary

Rambus Inc. reported a proposed sale under Rule 144 of 9,074 common shares held as performance shares that were acquired on 02/01/2025. The broker listed is Morgan Stanley Smith Barney LLC and the notice cites an aggregate market value of $920,971.98 for the shares and an approximate sale date of 10/06/2025 on NASDAQ. The filer indicates the securities were issued by the company (acquired from the issuer) and shows a prior sale of the same number of shares on 09/15/2025 generating gross proceeds of $832,098.50. Outstanding common shares are listed as 107,593,820, making the block a very small fraction of the total.

Positive

• Sale documented under Rule 144 with broker identified (Morgan Stanley Smith Barney LLC)
• Securities originated as performance shares from the issuer on 02/01/2025
• Aggregate market value reported at $920,971.98, with prior gross proceeds of $832,098.50

Negative

• None.

Insights

Securities Compliance Analyst

TL;DR: Filing follows Rule 144 mechanics for sale of earned performance shares.

The notice documents a sale under Rule 144 of 9,074 shares acquired as performance shares from the issuer on 02/01/2025, with a broker named and an approximate sale date of 10/06/2025. The form includes the required representation that the seller is not aware of undisclosed material adverse information.

Key compliance dependencies include the holding/transfer history and the brokered-sale details; the listed prior sale on 09/15/2025 for $832,098.50 is documented. Monitor confirmations of trade execution and any subsequent amendments to the notice within standard disclosure timelines.

Equity Capital Markets Analyst

TL;DR: The sale size is immaterial relative to the share count but produces notable cash proceeds.

The block of 9,074 shares represents roughly 0.0084% of the 107,593,820 shares outstanding, so direct market impact is unlikely. The aggregate market value reported is $920,971.98, while gross proceeds shown from a listed prior sale are $832,098.50.

Watch for any clustered insider sales or additional filings that could signal a larger pattern; absent further disclosures, this single small block is unlikely to change valuation materially over the near term.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	9074	920971.98	107593820	10/06/2025	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	02/01/2025	Performance Shares	ISSUER			9074	02/01/2025	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
DESMOND M LYNCH 4453 North First Street Suite 100 San Jose CA 95134	Common	09/15/2025	9074	832098.50

144: Remarks and Signature

Remarks

Date of Notice

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

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What did Rambus (RMBS) report in the Form 144?

The filing notifies a proposed sale of 9,074 common shares acquired as performance shares, with an aggregate market value of $920,971.98 and an approximate sale date of 10/06/2025.

Who is the broker handling the RMBS sale?

The broker listed is Morgan Stanley Smith Barney LLC at 1 New York Plaza, New York, NY.

How large is the reported sale relative to Rambus's outstanding shares?

The block of 9,074 shares is against 107,593,820 shares outstanding, about 0.0084% of the share count.

When were the shares acquired that are being sold under Rule 144?

The shares were acquired from the issuer as performance shares on 02/01/2025.

What proceeds were reported for related recent sales?

A sale on 09/15/2025 of 9,074 shares shows gross proceeds of $832,098.50.