Lam Research (LRCX): Rep. Byron Donalds (FL19) disclosed a purchase $1K–$15K

$1,001–$15,000

Reported range · official band, not an exact amount

29 days

Disclosure lag

Traded

Aug 7, 2025

Disclosed

Sep 5, 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. May 12, 2025CongressDisclosed sale of LRCX — reported range $15,001 - $50,000
4. May 13, 2025CongressDisclosed purchase of LRCX — reported range $15,001 - $50,000
5. Jul 18, 2025Congress · 1 personMembers of Congress: 2 sales
6. Aug 7, 2025 · this disclosureCongressDisclosed purchase of LRCX — reported range $1,001 - $15,000

What came next

1. Aug 7, 2025CongressDisclosed purchase of LRCX — reported range $1,001 - $15,000
2. Aug 13, 2025CongressDisclosed purchase of LRCX — reported range $1,001 - $15,000
3. Aug 28, 2025CongressDisclosed partial sale of LRCX — reported range $15,001 - $50,000
4. Sep 3, 2025CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
5. Sep 8, 2025Company filing · Form 8-K · Auditor changeChanged its auditor
6. Sep 22, 2025Congress · 1 personMembers of Congress: 2 sales
7. Sep 23, 2025CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
8. Oct 13, 2025Insider · Their largest sale since 2019Officer sold ~$7.25M of LRCX shares in the open market
9. Oct 22, 2025Company filing · Form 8-K · ResultsReported its results
10. Oct 27, 2025Insider · 1 personInsiders: 2 sales (~$1.4M)
11. Nov 3, 2025InsiderDirector sold ~$208K of LRCX shares in the open market
12. 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)
13. Nov 7, 2025InsiderDirector sold ~$4.8K of LRCX shares in the open market
14. Nov 14, 2025InsiderCFO sold ~$6.04M of LRCX shares in the open market
15. 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

How to read House Clerk periodic transaction report

The STOCK Act is a 2012 US law that requires members of Congress, and some senior staff, to publicly report their stock trades, and those of their spouse and dependent children, within 45 days.

Full guide: What is the STOCK Act?

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 Rep. Byron Donalds (FL19)

• House Clerk periodic transaction report at Howmet Aerospace (HWM)Sep 15, 2026
• House Clerk periodic transaction report at Howmet Aerospace (HWM)Sep 15, 2026
• House Clerk periodic transaction report at Netflix (NFLX)Sep 15, 2026
• House Clerk periodic transaction report at Netflix (NFLX)Sep 15, 2026
• House Clerk periodic transaction report at Parker Hannifin (PH)Sep 15, 2026

The full history of Rep. Byron Donalds (FL19) is on the profile page.

How this filing works

• The STOCK Act

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.