Lam Research (LRCX): Chief Legal Officer sold ~$472K

~$472K

Approx. value · 3,000 sh @ $157.48

57K

Holds after · shares reported

Traded

Oct 27, 2025

Filed

Oct 28, 2025

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. Oct 29, 2024CongressDisclosed purchase of LRCX — reported range $1,001 - $15,000
2. Feb 4, 2025CongressDisclosed partial sale of LRCX — reported range $1,001 - $15,000
3. Jul 18, 2025Congress · 1 personMembers of Congress: 2 sales
4. Aug 7, 2025Congress · 1 personMembers of Congress: 2 purchases
5. Aug 13, 2025CongressDisclosed purchase of LRCX — reported range $1,001 - $15,000
6. Aug 28, 2025CongressDisclosed partial sale of LRCX — reported range $15,001 - $50,000
7. Sep 3, 2025CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
8. Sep 8, 2025Company filing · Form 8-K · Auditor changeChanged its auditor
9. Sep 22, 2025Congress · 1 personMembers of Congress: 2 sales
10. Sep 23, 2025CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
11. Oct 13, 2025Insider · Their largest sale since 2019Officer sold ~$7.25M of LRCX shares in the open market
12. Oct 22, 2025Company filing · Form 8-K · ResultsReported its results
13. Oct 27, 2025 · this disclosureInsiderOfficer sold ~$472K of LRCX shares in the open market

What came next

1. Oct 27, 2025InsiderOfficer sold ~$946K of LRCX shares in the open market
2. Nov 3, 2025InsiderDirector sold ~$208K of LRCX shares in the open market
3. Nov 4, 2025Company filing · Form 8-K · Shareholder rights, Executive changeChanged a top executive or board member, and changed the rights of its shareholders (and 2 more items)
4. Nov 7, 2025InsiderDirector sold ~$4.8K of LRCX shares in the open market
5. Nov 14, 2025InsiderCFO sold ~$6.04M of LRCX shares in the open market
6. Nov 20, 2025Government · Federal Register noticePhasedown of Hydrofluorocarbons: Notice of 2026 Allowance Allocations for Production and Consumption of Regulated Substances Under the American Innovation and Manufacturing Act of 2020, and Notice of Final Actions Establishing Administrative Consequences
7. Dec 17, 2025Insider · 1 personInsiders: 2 sales (~$26.8M)
8. Dec 29, 2025CongressDisclosed purchase of LRCX — reported range $50,001 - $100,000
9. Jan 8, 2026Congress · 2 peopleMembers of Congress: 3 sales
10. Jan 16, 2026CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
11. Jan 28, 2026Company filing · Form 8-K · ResultsReported its results
12. 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.”
13. 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.”
14. Feb 3, 2026CongressDisclosed purchase of LRCX — reported range $15,001 - $50,000
15. Feb 6, 2026Insider · 1 personInsiders: 2 sales (~$7.9M)

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)Mar 3, 2026
• 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.