Luc Seraphin - Apr 1, 2025 Form 4 Insider Report for RAMBUS INC (RMBS)

Signature
/s/Brian Wu, by power of attorney
Stock symbol
RMBS
Transactions as of
Apr 1, 2025
Transactions value $
-$778,841
Form type
4
Date filed
4/3/2025, 02:50 PM
Previous filing
Mar 26, 2025
Next filing
Apr 8, 2025

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RMBS Common Stock Award $0 +55.1K +17.94% $0.00 362K Apr 1, 2025 Direct F1
transaction RMBS Common Stock Tax liability -$270K -5.16K -1.43% $52.29 357K Apr 1, 2025 Direct F2
transaction RMBS Common Stock Sale -$509K -10K -2.8% $50.88 347K Apr 1, 2025 Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 The shares are represented by RSUs which vest in four equal annual installments beginning on April 1, 2026 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock.
F2 The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.
F3 The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.175 to $51.41, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.