Bethany Mayer - 07 Nov 2025 Form 4 Insider Report for LAM RESEARCH CORP (LRCX)

Reporting relationship: Director
Issuer ticker: LRCX
Reported as of: 07 Nov 2025
Net transaction value: -$4,786
SEC form: 4
Accepted by SEC: 10 Nov 2025, 16:27:23 UTC
Prior SEC filing: 04 Nov 2025
Next SEC filing: 03 Apr 2026
Source filing: View source filing
Reporting owner signature: Marta Woods by Power of Attorney

Key filing fact

Bethany Mayer filed Form 4 for LAM RESEARCH CORP (LRCX) on 10 Nov 2025.

Key facts

This page summarizes Bethany Mayer's Form 4 filing for LAM RESEARCH CORP (LRCX).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 10 Nov 2025, 16:27.

Change

Previous filing in this sequence was filed on 04 Nov 2025.
Current net transaction value: -$4,786.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001405693 Primary reporting owner

Mayer Bethany

Relationship: Director
Address: C/O LAM RESEARCH CORPORATION, 4650 CUSHING PARKWAY, FREMONT
Signature: Marta Woods by Power of Attorney
Signature date: 10 Nov 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LRCX transaction

Common Stock

Award

Transaction value: $0
Shares: +1,635
Change %: +99%
Price: $0.000000
Shares after: 3,287
Date: 07 Nov 2025
Ownership: Direct
Footnotes: F1

LRCX transaction

Common Stock

Sale

Transaction value: $4,786
Shares: -30
Change %: -0.91%
Price: $159.52
Shares after: 3,257
Date: 07 Nov 2025
Ownership: Direct
Footnotes: F1, F2

LRCX transaction

Common Stock

Gift

Transaction value: $0
Shares: -1,622
Change %: -50%
Price: $0.000000
Shares after: 1,635
Date: 10 Nov 2025
Ownership: Direct
Footnotes: F1, F3

LRCX transaction

Common Stock

Gift

Transaction value: $0
Shares: +1,622
Change %: +5.6%
Price: $0.000000
Shares after: 30,552
Date: 10 Nov 2025
Ownership: By Trust
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

The amount reported includes shares subject to unvested restricted stock units.

Footnote F2

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 12, 2024

Footnote 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.