Vahid Vahedi - 27 Feb 2026 Form 4 Insider Report for LAM RESEARCH CORP (LRCX)

Reporting relationship: Senior Vice President
Issuer ticker: LRCX
Reported as of: 27 Feb 2026
Net transaction value: -$7,712,289
SEC form: 4
Accepted by SEC: 02 Mar 2026, 18:13:38 UTC
Prior SEC filing: 05 Feb 2026
Source filing: View source filing
Reporting owner signature: Marta Woods by Power of Attorney

Key filing fact

Vahid Vahedi filed Form 4 for LAM RESEARCH CORP (LRCX) on 02 Mar 2026.

Key facts

This page summarizes Vahid Vahedi's Form 4 filing for LAM RESEARCH CORP (LRCX).
6 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 02 Mar 2026, 18:13.

Change

Previous filing in this sequence was filed on 05 Feb 2026.
Current net transaction value: -$7,712,289.

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 0001707826 Primary reporting owner

Vahedi Vahid

Relationship: Senior Vice President
Address: C/O LAM RESEARCH CORPORATION, 4650 CUSHING PARKWAY, FREMONT
Signature: Marta Woods by Power of Attorney
Signature date: 02 Mar 2026

Reported non-derivative transactions

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

LRCX transaction

Common Stock

Award

Transaction value: $0
Shares: +9,053
Change %: +3%
Price: $0.000000
Shares after: 309,870
Date: 27 Feb 2026
Ownership: Direct
Footnotes: F1, F2

LRCX transaction

Common Stock

Tax liability

Transaction value: $5,771,236
Shares: -24,675
Change %: -8%
Price: $233.89
Shares after: 285,195
Date: 27 Feb 2026
Ownership: Direct
Footnotes: F2, F3

LRCX transaction

Common Stock

Tax liability

Transaction value: $700,267
Shares: -2,994
Change %: -1%
Price: $233.89
Shares after: 282,201
Date: 27 Feb 2026
Ownership: Direct
Footnotes: F2, F3

LRCX transaction

Common Stock

Tax liability

Transaction value: $449,770
Shares: -1,923
Change %: -0.68%
Price: $233.89
Shares after: 280,278
Date: 27 Feb 2026
Ownership: Direct
Footnotes: F2, F3

LRCX transaction

Common Stock

Tax liability

Transaction value: $791,016
Shares: -3,382
Change %: -1.2%
Price: $233.89
Shares after: 276,896
Date: 27 Mar 2026
Ownership: Direct
Footnotes: F2, F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

LRCX transaction Derivative

Market-based Performance Restricted Stock Unit

Award

Transaction value: $0
Shares: +11,065
Change %
Price: $0.000000
Shares after: 11,065
Date: 27 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 11,065
Exercise price: $0.000000
Footnotes: F4

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

The restricted stock units will vest in three equal installments on 02/27/2027, 02/27/2028, and 02/27/2029.

Footnote F2

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

Footnote F3

Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations.

Footnote F4

The Market-based performance restricted stock units will vest between 0% and 150% on 2/27/2029. The performance of this award is based on the percentile ranking of Lam Research's Total Shareholder Return relative to the Total Shareholder Return of the companies in the PHLX Semiconductor Total Return Index during the performance period of 02/2/2026 through 02/01/2029.