Lam Research (LRCX): Chief Legal Officer sold ~$930K

~$930K

Approx. value · 4,000 sh @ $232.50

55K

Holds after · shares reported

Traded

Mar 2, 2026

Filed

Mar 3, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Dec 29, 2025CongressDisclosed purchase of LRCX — reported range $50,001 - $100,000
2. Jan 8, 2026Congress · 2 peopleMembers of Congress: 3 sales
3. Jan 16, 2026CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
4. Jan 28, 2026Company filing · Form 8-K · ResultsReported its results
5. Jan 30, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On February 3, 2026, the Board of Directors (the “Board”) of Lam Research Corporation (the “Company”), pursuant to applicable provisions of the Company’s Amended and Restated Bylaws, appointed Anirudh Devgan, Ph.D., age 56, as a director of the Company, effective immediately.”
6. Jan 30, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On February 3, 2026, Lam Research Corporation (the “Company”) filed a Current Report on Form 8-K (the “Initial Form 8-K”) wherein it reported that it had issued a press release (the “Exhibit 99.2 Press Release”) announcing the retirement of Patrick J. Lord, Ph.D. and the appointment of Seshasayee (Sesha) Varadarajan as the Company’s executive vice president and chief operating officer.”
7. Feb 3, 2026CongressDisclosed purchase of LRCX — reported range $15,001 - $50,000
8. Feb 6, 2026Insider · 1 personInsiders: 2 sales (~$7.9M)
9. Feb 26, 2026Congress · 1 personMembers of Congress: 2 sales
10. Mar 2, 2026 · this disclosureInsiderOfficer sold ~$930K of LRCX shares in the open market

What came next

1. Mar 2, 2026Insider · Their largest sale since 2013CFO sold ~$9.28M of LRCX shares in the open market
2. Mar 4, 2026Insider · 2 peopleInsiders: 2 sales (~$11.5M)
3. Mar 12, 2026CongressDisclosed purchase of LRCX — reported range $1,001 - $15,000
4. Mar 27, 20265% stakeThe Vanguard Group reported a passive stake (13G)
5. Apr 22, 2026Company filing · Form 8-K · ResultsReported its results
6. Apr 27, 2026InsiderOfficer sold ~$1.55M of LRCX shares in the open market
7. Apr 27, 2026Congress · 1 personMembers of Congress: 2 sales
8. Apr 30, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
9. May 1, 2026InsiderOfficer sold ~$4.64M of LRCX shares in the open market
10. Jun 1, 2026InsiderOfficer sold ~$2.37M of LRCX shares in the open market
11. Jun 5, 2026CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
12. Jun 11, 2026Insider · 1 personInsiders: 26 sales (~$19.1M)
13. Jun 12, 2026Insider · 1 personInsiders: 17 sales (~$20.0M)

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Lam Research

For Lam Research, OQRO holds 12 insider filings (SEC Form 4 or Form 144), 2 Congress trade reports and 97 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its LRCX page.

Other recent filings by Ava Harter, Chief Legal Officer

• SEC Form 4 at Lam Research (LRCX)Sep 1, 2026
• SEC Form 4 at Lam Research (LRCX)Apr 28, 2026
• SEC Form 4 at Lam Research (LRCX)Mar 5, 2026
• SEC Form 4 at Lam Research (LRCX)Oct 28, 2025
• SEC Form 4 at Lam Research (LRCX)Oct 28, 2025

The full history of Ava Harter, Chief Legal Officer is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Lam Research

• House Clerk periodic transaction reportOct 29, 2026
• SEC Form 4Oct 26, 2026
• SEC Form 144Oct 23, 2026
• SEC Form 4Sep 10, 2026
• SEC Form 4Sep 10, 2026
• SEC Form 144Sep 9, 2026

Everything OQRO holds on this company is on its LRCX page.