Thermo Fisher Scientific (TMO)Sen. Alan Armstrong disclosed a purchase $1K–$15K

$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.

1. Jan 27, 2026Layoff notice · 5781 Van Allen Way Carlsbad CA 92008Layoff notice filed in CA: 173 employees
2. Jan 29, 2026Company filing · Form 8-K · ResultsReported its results
3. Feb 9, 2026Company filing · Form 8-K · Material agreement, Other newsSigned an important agreement, and reported other company news
4. Feb 9, 2026InsiderOfficer sold ~$216K of TMO shares in the open market
5. Mar 3, 2026Insider · 1 personInsiders: 12 sales (~$2.5M)
6. Mar 4, 2026Insider · 1 personInsiders: 8 sales (~$2.6M)
7. Mar 5, 2026Insider · 1 personInsiders: 13 sales (~$2.1M)
8. Mar 11, 2026InsiderOfficer sold ~$803K of TMO shares in the open market
9. Mar 27, 2026 · this disclosureCongressDisclosed purchase of TMO — reported range $1,001 - $15,000

What came next

1. Mar 27, 20265% stakeThe Vanguard Group reported a passive stake (13G)
2. Mar 27, 2026Federal contract · $4.5M obligatedDepartment of Commerce awarded Thermo Fisher Scientific: $4.49M obligated to date
3. Apr 23, 2026Company filing · Form 8-K · ResultsReported its results
4. Apr 27, 2026InsiderOfficer sold ~$185K of TMO shares in the open market
5. Apr 30, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
6. May 7, 2026CongressDisclosed partial sale of TMO — reported range $1,001 - $15,000
7. Jun 4, 2026Federal contract · $1.6M obligatedDepartment of Defense awarded Thermo Fisher Scientific: $1.57M obligated to date
8. Jun 9, 2026Federal contract · $1.5M obligatedDepartment of Agriculture awarded Thermo Fisher Scientific: $1.5M obligated to date
9. Jul 10, 2026CongressDisclosed sale of TMO — reported range $1,001 - $15,000
10. Jul 21, 2026Government · Federal Register noticeGranting of Requests for Early Termination of the Waiting Period Under the Premerger Notification Rules
11. Jul 23, 2026Company filing · Form 8-K · ResultsReported its results
12. Jul 24, 2026FDAFDA device clearance: Thermo Scientific Oxoid Cefepime/Zidebactam Disc (30/30 µg) FPZ60

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 Thermo Fisher Scientific

For Thermo Fisher Scientific, OQRO holds 93 insider filings (SEC Form 4 or Form 144), 3 Congress trade reports, 143 fund holdings reports (13F) and 6 federal contract awards 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 TMO 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 Thermo Fisher Scientific

• USAspending.gov award recordSep 30, 2026
• USAspending.gov award recordSep 30, 2026
• USAspending.gov award recordSep 29, 2026
• USAspending.gov award recordSep 29, 2026
• USAspending.gov award recordSep 9, 2026
• SEC Form 4Sep 1, 2026

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