Bethany Mayer - 06 Nov 2026 Form 4 Insider Report for LAM RESEARCH CORP (LRCX)

Reporting relationship: Director
Issuer ticker: LRCX
Reported as of: 06 Nov 2026
Net transaction value: -$3,336
SEC form: 4
Accepted by SEC: 09 Nov 2026, 14:06:40 UTC
Prior SEC filing: 03 Nov 2026
Source filing: View source filing
Reporting owner signature: Marta Woods by Power of Attorney

Filing notes and source

Key filing fact

Bethany Mayer filed Form 4 for LAM RESEARCH CORP (LRCX) on 09 Nov 2026.

Key facts

This page summarizes Bethany Mayer's Form 4 filing for LAM RESEARCH CORP (LRCX).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 09 Nov 2026, 14:06.

Change

Previous filing in this sequence was filed on 03 Nov 2026.
Current net transaction value: -$3,336.

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: 09 Nov 2026

Reported non-derivative transactions

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

LRCX transaction

Common Stock

Award

Transaction value
Shares: +856
Change %: +93%
Price: $0.000000^*
Shares after: 1,772
Date: 06 Nov 2026
Ownership: Direct
Footnotes: F1

LRCX transaction

Common Stock

Sale

Transaction value: -$3,336
Shares: -16
Change %: -0.9%
Price: $208.50
Shares after: 1,756
Date: 06 Nov 2026
Ownership: Direct
Footnotes: F1, F2

LRCX holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 20,995
Date: 06 Nov 2026
Ownership: By Trust

^* 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 2 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, 2025.