Bethany Mayer - Nov 7, 2025 Form 4 Insider Report for LAM RESEARCH CORP (LRCX)

Role
Director
Signature
Marta Woods by Power of Attorney
Stock symbol
LRCX
Transactions as of
Nov 7, 2025
Transactions value $
-$4,786
Form type
4
Date filed
11/10/2025, 04:27 PM
Previous filing
Nov 4, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Mayer Bethany Director C/O LAM RESEARCH CORPORATION, 4650 CUSHING PARKWAY, FREMONT Marta Woods by Power of Attorney 2025-11-10 0001405693

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction LRCX Common Stock Award $0 +1.64K +98.97% $0.00 3.29K Nov 7, 2025 Direct F1
transaction LRCX Common Stock Sale -$4.79K -30 -0.91% $159.52 3.26K Nov 7, 2025 Direct F1, F2
transaction LRCX Common Stock Gift $0 -1.62K -49.8% $0.00 1.64K Nov 10, 2025 Direct F1, F3
transaction LRCX Common Stock Gift $0 +1.62K +5.61% $0.00 30.6K Nov 10, 2025 By Trust F3
* 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 amount reported includes shares subject to unvested restricted stock units.
F2 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 12, 2024
F3 On November 10, 2025, the reporting person transferred 1,622 shares of LRCX common stock to the Mayer Family Trust for no consideration. The reporting person is trustee of the trust, and the reporting person and members of her immediate family are the sole beneficiaries of the trust. The reporting person remains the beneficial owner of the securities held by the trust.