Rambus (RMBS) director Necip Sayiner sells 5,000 shares in open market

Rhea-AI Filing Summary

Rambus Inc. director Necip Sayiner sold 5,000 shares of Common Stock in an open-market transaction. The shares were sold at an exact price of $170.15 each, according to the filing footnote. After this sale, Sayiner directly holds 18,223 Rambus shares.

Insider Trade Summary

Net Seller: 5,000 shares ($850,750)

Net Sell 1 txn

Insider Sayiner Necip

Role null

Sold 5,000 shs ($851K)

Type	Security	Shares	Price	Value
Sale	Common Stock	5,000	$170.15	$851K

Holdings After Transaction: Common Stock — 18,223 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 5,000 shares Sale price: $170.15 per share Shares held after sale: 18,223 shares

3 metrics

Shares sold 5,000 shares Open-market sale of Rambus Common Stock

Sale price $170.15 per share Exact execution price for all shares sold

Shares held after sale 18,223 shares Direct Rambus Common Stock holdings post-transaction

Key Terms

Common Stock, open-market sale, Form 4

3 terms

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sayiner Necip

(Last) (First) (Middle)

C/O RAMBUS INC

4453 NORTH FIRST ST, SUITE 100

(Street)

SAN JOSE CALIFORNIA 95134

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
RAMBUS INC [ RMBS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/03/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/03/2026		S		5,000	D	$170.15(1)	18,223	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. All shares sold at an exact price of $170.15.

	/s/Brian Wu, by power of attorney	06/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Rambus (RMBS) director Necip Sayiner report?

Necip Sayiner reported an open-market sale of 5,000 Rambus Common Stock shares. The transaction was disclosed on a Form 4 and reflects a routine insider sale rather than a grant, option exercise, or tax-related share withholding.

At what price did Necip Sayiner sell Rambus (RMBS) shares?

All 5,000 shares were sold at an exact price of $170.15 per share. This single execution price is confirmed in a footnote, indicating the entire reported trade occurred at the same market price during the transaction.

How many Rambus (RMBS) shares does Necip Sayiner hold after the sale?

After selling 5,000 shares, Necip Sayiner directly holds 18,223 Rambus Common Stock shares. This post-transaction holding figure comes from the Form 4 and shows his remaining direct equity position in the company.

Was Necip Sayiner’s Rambus (RMBS) trade an open-market sale or another type?

The trade was classified as an open-market sale of Common Stock. The Form 4 uses transaction code “S” and describes it as a sale in an open market or private transaction, indicating a discretionary disposal rather than a grant or tax withholding.

Does Necip Sayiner hold any Rambus (RMBS) derivative securities after this Form 4?

The filing’s derivative summary is empty, indicating no derivative securities such as options or warrants are reported as remaining. Only non-derivative Common Stock holdings are listed, with 18,223 shares held directly after the transaction.