Lam Research (LRCX): Politician trade (Senate), $1K

$1,001–$15,000
Reported range · official band, not an exact amount: 116 days
Disclosure lag

Traded: Mar 27, 2026
Disclosed: Jul 21, 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.

Jan 8, 2026CongressDisclosed partial sale of LRCX — reported range $1,001 - $15,000
Jan 16, 2026CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
Jan 28, 2026Company filing · Form 8-K · ResultsReported its results
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.”
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.”
Feb 3, 2026CongressDisclosed purchase of LRCX — reported range $15,001 - $50,000
Feb 6, 2026Insider · 1 personInsiders: 2 sales (~$7.9M)
Feb 26, 2026Congress · 1 personMembers of Congress: 2 sales
Mar 2, 2026Insider · 2 peopleInsiders: 2 sales (~$10.2M)
Mar 4, 2026Insider · 2 peopleInsiders: 2 sales (~$11.5M)
Mar 12, 2026CongressDisclosed purchase of LRCX — reported range $1,001 - $15,000
Mar 27, 2026 · this disclosureCongressDisclosed purchase of LRCX — reported range $1,001 - $15,000

What came next

Mar 27, 20265% stakeThe Vanguard Group reported a passive stake (13G)
Apr 22, 2026Company filing · Form 8-K · ResultsReported its results
Apr 27, 2026InsiderOfficer sold ~$1.55M of LRCX shares in the open market
Apr 27, 2026Congress · 1 personMembers of Congress: 2 sales
Apr 30, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
May 1, 2026InsiderOfficer sold ~$4.64M of LRCX shares in the open market
Jun 1, 2026InsiderOfficer sold ~$2.37M of LRCX shares in the open market
Jun 5, 2026CongressDisclosed sale of LRCX — reported range $1,001 - $15,000
Jun 11, 2026Insider · 1 personInsiders: 26 sales (~$19.1M)
Jun 12, 2026Insider · 1 personInsiders: 17 sales (~$20.0M)
Jul 2, 2026InsiderCEO sold ~$11.7M of LRCX shares in the open market
Jul 13, 2026Insider · Their largest sale since 2019Director sold ~$6.12M of LRCX shares in the open market

How to read Senate eFD 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 11 insider filings (SEC Form 4 or Form 144), 2 Congress trade reports and 134 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 Sen. Alan Armstrong

The full history of Sen. Alan Armstrong is on the profile page.

Other disclosures at Lam Research

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

Lam Research (LRCX)Sen. Alan Armstrong disclosed a purchase $1K–$15K