LYTIR

Company · TMO

Thermo Fisher Scientific Inc

Name as listed on its exchange; filed with the SEC as THERMO FISHER SCIENTIFIC INC.

Nasdaq's symbol directory lists TMO on the New York Stock Exchange as “Thermo Fisher Scientific Inc Common Stock”.

In the 12 months to Nov 8, 2026: insiders sold on 14 occasions ($63.7M); 13 planned-sale notices; 1 filing by holders of 5% or more; 3 congressional trade disclosures; 3 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $63.7M in total.Apr: Insider sales $185KJul: Insider sales $226KAug: Insider sales $61.3MOct: Insider sales $2.0MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $63.7M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Marc N. Casper, Chairman & CEO sold on 6 days all under a 10b5-1 plan latest Aug 24, 2026 sold $32.8M
  2. Michael D. Shafer, Executive Vice President sold on 1 day all under a 10b5-1 plan latest Aug 11, 2026 sold $15.3M
  3. Lisa P. Britt, Sr. VP and Chief HR Officer sold on 3 days latest Oct 28, 2026 sold $12.4M
  4. Gianluca Pettiti, President & COO sold on 3 days all under a 10b5-1 plan latest Aug 31, 2026 sold $3.0M
  5. Holmes Joseph R., VP & Chief Accounting Officer sold on 1 day latest Aug 7, 2026 sold $246K
Every trade (14)
  1. SELLLisa P. Britt, Sr. VP and Chief HR Officer sold Oct 28, 2026 2,831 shares filing $2.0M
  2. SELLGianluca Pettiti, President & COO sold Aug 31, 2026 4,133 shares 2 legs combined 10b5-1 plan (scheduled) filing $2.5M
  3. SELLMarc N. Casper, Chairman & CEO sold Aug 24, 2026 275 shares 4 legs combined 10b5-1 plan (scheduled) filing $172K
  4. SELLMarc N. Casper, Chairman & CEO sold Aug 21, 2026 10,000 shares 5 legs combined 10b5-1 plan (scheduled) filing $6.3M
  5. SELLMarc N. Casper, Chairman & CEO sold Aug 20, 2026 10,000 shares 9 legs combined 10b5-1 plan (scheduled) filing $6.3M
  6. SELLLisa P. Britt, Sr. VP and Chief HR Officer sold Aug 19, 2026 11,440 shares filing $7.0M
  7. SELLMichael D. Shafer, Executive Vice President sold Aug 11, 2026 25,500 shares 2 legs combined 10b5-1 plan (scheduled) filing $15.3M
  8. SELLMarc N. Casper, Chairman & CEO sold Aug 7, 2026 4,883 shares 27 legs combined 10b5-1 plan (scheduled) filing $2.9M
  9. SELLHolmes Joseph R., VP & Chief Accounting Officer sold Aug 7, 2026 420 shares filing $246K
  10. SELLMarc N. Casper, Chairman & CEO sold Aug 6, 2026 15,000 shares 18 legs combined 10b5-1 plan (scheduled) filing $8.6M
  11. SELLLisa P. Britt, Sr. VP and Chief HR Officer sold Aug 6, 2026 5,850 shares filing $3.4M
  12. SELLMarc N. Casper, Chairman & CEO sold Aug 5, 2026 15,000 shares 22 legs combined 10b5-1 plan (scheduled) filing $8.6M
  13. SELLGianluca Pettiti, President & COO sold Jul 27, 2026 400 shares 10b5-1 plan (scheduled) filing $226K
  14. SELLGianluca Pettiti, President & COO sold Apr 27, 2026 400 shares 10b5-1 plan (scheduled) filing $185K

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. Britt Lisa P. filed Oct 28, 2026 Officer 2,831 shares planned sale date 10/28/2026 filing $2.0M
  2. Pettiti Gianluca filed Aug 31, 2026 Officer 4,133 shares planned sale date 08/31/2026 filing $2.5M
  3. CASPER MARC N filed Aug 24, 2026 Officer 275 shares planned sale date 08/24/2026 filing $172K
  4. CASPER MARC N filed Aug 21, 2026 Officer 10,000 shares planned sale date 08/21/2026 filing $6.3M
  5. CASPER MARC N filed Aug 20, 2026 Officer 10,000 shares planned sale date 08/20/2026 filing $6.3M
  6. Britt Lisa P. filed Aug 19, 2026 Officer 11,440 shares planned sale date 08/19/2026 filing $7.0M
  7. Shafer Michael D filed Aug 11, 2026 Officer 25,500 shares planned sale date 08/11/2026 filing $15.3M
  8. CASPER MARC N filed Aug 7, 2026 Officer 4,883 shares planned sale date 08/07/2026 filing $2.8M
  9. Holmes Joseph R. filed Aug 7, 2026 Officer 420 shares planned sale date 08/07/2026 filing $246K
  10. CASPER MARC N filed Aug 6, 2026 Officer 15,000 shares planned sale date 08/06/2026 filing $8.7M
  11. Britt Lisa P. filed Aug 6, 2026 Officer 5,850 shares planned sale date 08/06/2026 filing $3.4M
  12. CASPER MARC N filed Aug 5, 2026 Officer 15,000 shares planned sale date 08/05/2026 filing $8.5M
  13. Pettiti Gianluca filed Jul 27, 2026 Officer 400 shares planned sale date 07/27/2026 filing $226K

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. FMR LLC filed Nov 5, 2026 Schedule 13G passive 22,261,362 shares filing 6%

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. Dan Newhouse (R-WA04): Sale Jul 10, 2026 reported Jul 17, 2026 one of 31 trades the member reported that day House Stocks (including ADRs) owner: spouse $1,001 - $15,000
  2. Dwight Evans (D-PA03): Sale May 7, 2026 reported May 15, 2026 one of 5 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  3. Alan Armstrong (R-OK): Purchase Mar 27, 2026 reported Jul 21, 2026 one of 703 trades the member reported that day Senate Stock $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Departure or appointment of directors or officers filing Oct 30, 2026
  2. Results of operations and financial condition filing Oct 21, 2026
  3. Results of operations and financial condition filing Jul 23, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.