Rambus director granted 2,223 RSUs in Form 4

Rambus Inc. director Steven Laub received an equity grant of 2,223 shares of common stock in the form of restricted stock units (RSUs).

Accepted by SEC EDGAR 04/03/2026 - 09:15 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Rambus Inc. director Steven Laub received an equity grant of 2,223 shares of common stock in the form of restricted stock units (RSUs). These RSUs vest on April 1, 2027, or the first business day thereafter, at which time each unit converts into one share of RMBS common stock.

Following this grant, Laub holds 9,019 shares of Rambus common stock directly, indicating this is a relatively small, routine compensation-related award rather than an open-market purchase or sale.

Insider Trade Summary

Grant/Award: 2,223 shares

Grant/Award 1 txn

Insider LAUB STEVEN

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,223	$0.00	$0.00

Holdings After Transaction: Common Stock — 9,019 shares (Direct)

Holdings Before and After: Common Stock, 6,796 to 9,019 shares (Direct)

Footnotes (1)

1. F1. The shares are represented by restricted stock units, or RSUs, all of which vest April 1, 2027 or the first business day thereafter. Each RSU represents the contingent right to receive one share of RMBS common stock.

Key Figures

RSU grant size: 2,223 shares Post-transaction holdings: 9,019 shares Grant price per share: $0.00 per share +1 more

4 metrics

RSU grant size 2,223 shares Restricted stock units granted April 1, 2026

Post-transaction holdings 9,019 shares Total common shares held directly after grant

Grant price per share $0.00 per share Equity compensation award, no cash consideration

Vesting date April 1, 2027 RSUs vest on April 1, 2027 or next business day

Key Terms

restricted stock units, RSUs, contingent right, grant, award, or other acquisition

4 terms

restricted stock units financial

"The shares are represented by restricted stock units, or RSUs, all of which vest April 1, 2027"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

RSUs financial

"restricted stock units, or RSUs, all of which vest April 1, 2027"

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

contingent right financial

"Each RSU represents the contingent right to receive one share of RMBS common stock"

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

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

What insider transaction did RAMBUS INC (RMBS) report for Steven Laub?

RAMBUS INC reported that director Steven Laub received a grant of 2,223 restricted stock units. These RSUs are a form of equity compensation and will convert into common shares once they vest, rather than reflecting an open-market stock purchase or sale.

How many RAMBUS INC (RMBS) shares does Steven Laub hold after this Form 4?

After the reported grant, Steven Laub holds 9,019 shares of RAMBUS INC common stock directly. This total includes the impact of the new 2,223-share RSU award, which is scheduled to vest in the future according to the award terms.

What are the vesting terms of Steven Laub’s RSU grant at RAMBUS INC (RMBS)?

The 2,223 restricted stock units granted to Steven Laub vest on April 1, 2027, or the first business day thereafter. Once vested, each RSU entitles him to receive one share of RAMBUS INC common stock, aligning his compensation with long-term shareholder value.

Was the RAMBUS INC (RMBS) Form 4 transaction a stock purchase or sale?

The Form 4 shows an acquisition via equity grant, not a market trade. Steven Laub received 2,223 restricted stock units as compensation, with no cash price per share, so this filing does not represent an open-market purchase or sale of RMBS shares.

What does a transaction code “A” mean in the RAMBUS INC (RMBS) Form 4?

Transaction code “A” on the Form 4 indicates a grant, award, or other acquisition of securities. In this case, Steven Laub received 2,223 restricted stock units, reflecting a stock-based compensation award rather than a discretionary trade in RAMBUS INC common stock.

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

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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^*

LAUB STEVEN

(Last) (First) (Middle)

C/O RAMBUS INC.

4453 NORTH FIRST STREET, 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)
04/01/2026

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	04/01/2026		A		2,223(1)	A	$0	9,019	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. The shares are represented by restricted stock units, or RSUs, all of which vest April 1, 2027 or the first business day thereafter. Each RSU represents the contingent right to receive one share of RMBS common stock.

	/s/ Brian Wu, by power of attorney	04/03/2026
	** 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)