Applied Materials (AMAT)Sen. Alan Armstrong disclosed a purchase $15K–$50K

$15,001–$50,000

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.

1. Feb 12, 2026Company filing · Form 8-K · ResultsReported its results
2. Feb 17, 2026InsiderCFO sold ~$1.81M of AMAT shares in the open market
3. Feb 23, 2026Insider · 1 personInsiders: 2 sales (~$1.5M)
4. Feb 24, 2026InsiderOfficer sold ~$202K of AMAT shares in the open market
5. Feb 25, 2026InsiderDirector sold ~$979K of AMAT shares in the open market
6. Feb 27, 2026CongressDisclosed partial sale of AMAT — reported range $1,001 - $15,000
7. Mar 26, 20265% stakeThe Vanguard Group reported a passive stake (13G)
8. Mar 27, 2026 · this disclosureCongressDisclosed purchase of AMAT — reported range $15,001 - $50,000

What came next

1. Apr 29, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
2. May 14, 2026Company filing · Form 8-K · ResultsReported its results
3. May 22, 2026InsiderOfficer sold ~$116K of AMAT shares in the open market
4. May 26, 2026InsiderDirector sold ~$508K of AMAT shares in the open market
5. Jun 3, 2026InsiderCFO sold ~$1.25M of AMAT shares in the open market
6. Jun 4, 2026Insider · 1 personInsiders: 4 sales (~$25.3M)
7. Jun 15, 2026Insider · 3 peopleInsiders: 4 sales (~$18.1M)
8. Jun 16, 2026Insider · 3 peopleInsiders: 18 sales (~$62.5M)
9. Jun 18, 2026InsiderOfficer sold ~$6.34M of AMAT shares in the open market
10. Jun 29, 2026Insider · 1 personInsiders: 2 sales (~$40.8M)
11. Jun 30, 2026Insider · 1 personInsiders: 2 sales (~$14.7M)
12. Jul 10, 2026CongressDisclosed partial sale of AMAT — reported range $1,001 - $15,000

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 Applied Materials

For Applied Materials, OQRO holds 4 insider filings (SEC Form 4 or Form 144), 9 Congress trade reports and 155 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 AMAT page.

Other recent filings by Sen. Alan Armstrong

• Senate eFD periodic transaction report at Williams Companies (WMB)Sep 17, 2026
• Senate eFD periodic transaction report at Williams Companies (WMB)Sep 17, 2026
• Senate eFD periodic transaction report at KKR & Co. (KKR)Jul 21, 2026
• Senate eFD periodic transaction report at Globe Life (GL)Jul 21, 2026
• Senate eFD periodic transaction report at Copart (CPRT)Jul 21, 2026

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

How this filing works

• The STOCK Act

Other disclosures at Applied Materials

• House Clerk periodic transaction reportOct 7, 2026
• SEC Form 4Oct 6, 2026
• House Clerk periodic transaction reportSep 14, 2026
• SEC Form 4Sep 10, 2026
• SEC Form 144Sep 8, 2026
• House Clerk periodic transaction reportAug 27, 2026

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