TMO
THERMO FISHER SCIENTIFIC INC.
Latest Form 4:Sale$172KbyCASPER MARC N (Chairman & CEO) · filed Aug 26, 2026
THERMO FISHER SCIENTIFIC INC. (TMO) has 65 SEC Form 4 filings (272 transaction rows) in the rolling window, disclosed by 7 distinct insiders. Most recent filing: Aug 26, 2026.
The most active filer is Chairman & CEO CASPER MARC N with 12 filings. Insiders have net sold $67.1M over the trailing 6 months.
- Industry:Medical - Diagnostics & Research
- CEO:Marc N. Casper
- Employees:125,000
- HQ:Waltham, MA, US
- IPO:1980-03-17
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$156.0M
reported sales (SEC code S)
Unique Insiders
7
in the rolling window
Market Cap
$231.5B
latest known value
| Source | ||||||
|---|---|---|---|---|---|---|
| Chairman & CEO | Sale | 275 | $172K | Aug 26 | SEC ↗ | |
| Chairman & CEO | Sale | 10,000 | $6.3M | Aug 24 | SEC ↗ | |
| Chairman & CEO | Sale | 10,000 | $6.3M | Aug 24 | SEC ↗ | |
| Sr. VP and Chief HR Officer | Sale | 11,440 | $7.0M | Aug 20 | SEC ↗ | |
Shafer Michael DFirst in 5 months | Executive Vice President | Sale | 25,500 | $15.3M | Aug 13 | SEC ↗ |
Holmes Joseph R.First in 11 months | VP & Chief Accounting Officer | Sale | 420 | $246K | Aug 10 | SEC ↗ |
| Chairman & CEO | Sale | 4,883 | $2.9M | Aug 10 | SEC ↗ | |
Britt Lisa P.First in 9 months | Sr. VP and Chief HR Officer | Sale | 5,850 | $3.4M | Aug 7 | SEC ↗ |
| Chairman & CEO | Sale | 15,000 | $8.6M | Aug 7 | SEC ↗ | |
CASPER MARC NFirst in 5 months | Chairman & CEO | Sale | 15,000 | $8.6M | Aug 7 | SEC ↗ |
Pettiti GianlucaFirst in 3 months | President & COO | Sale | 400 | $226K | Jul 28 | SEC ↗ |
| President & COO | Sale | 400 | $185K | Apr 29 | SEC ↗ | |
Shafer Michael DFirst in 4 months | Executive Vice President | Sale | 1,607 | $803K | Mar 12 | SEC ↗ |
| Chairman & CEO | Sale | 4,000 | $2.1M | Mar 9 | SEC ↗ | |
CASPER MARC NFirst in 4 months | Chairman & CEO | Sale | 5,000 | $2.5M | Mar 5 | SEC ↗ |
CASPER MARC NFirst in 4 months | Chairman & CEO | Sale | 5,000 | $2.6M | Mar 5 | SEC ↗ |
Pettiti GianlucaFirst in 3 months | Executive Vice President | Sale | 400 | $216K | Feb 11 | SEC ↗ |
| Executive Vice President & COO | Sale | 22,046 | $12.4M | Dec 5 | SEC ↗ | |
| Executive Vice President & COO | Sale | 30,000 | $17.5M | Dec 4 | SEC ↗ | |
| Executive Vice President & COO | Sale | 32,000 | $18.7M | Dec 4 | SEC ↗ | |
Lowery Frederick M.First filing | Executive Vice President | Sale | 6,913 | $4.1M | Dec 3 | SEC ↗ |
Lowery Frederick M.First filing | Executive Vice President | Sale | 6,912 | $4.0M | Dec 3 | SEC ↗ |
Shafer Michael DFirst filing | Executive Vice President | Sale | 10,725 | $6.4M | Nov 26 | SEC ↗ |
Lagarde MichelFirst filing | Executive Vice President & COO | Sale | 4,638 | $2.8M | Nov 14 | SEC ↗ |
| Sr. VP and Chief HR Officer | Sale | 1,057.577 | $622K | Nov 14 | SEC ↗ | |
| Executive Vice President | Sale | 2,975 | $1.7M | Nov 12 | SEC ↗ | |
Britt Lisa P.First filing | Sr. VP and Chief HR Officer | Sale | 10,225 | $5.8M | Nov 10 | SEC ↗ |
| Chairman & CEO | Sale | 17,104 | $9.8M | Oct 28 | SEC ↗ | |
| Chairman & CEO | Sale | 7,250 | $4.1M | Oct 28 | SEC ↗ | |
Pettiti GianlucaFirst filing | Executive Vice President | Sale | 400 | $230K | Oct 28 | SEC ↗ |
CASPER MARC NFirst filing | Chairman & CEO | Sale | 400 | $200K | Sep 9 | SEC ↗ |
Holmes Joseph R.First filing | VP & Chief Accounting Officer | Sale | 385 | $190K | Sep 2 | SEC ↗ |
Congress trading TMO
See timeline →- RRep. Michael RulliSale$1,001 - $15,0002024-12-12
- RRep. Dan NewhouseSale$1,001 - $15,0002026-07-10
- DRep. Dwight EvansSale$1,001 - $15,0002026-05-07
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Related companies
THERMO FISHER SCIENTIFIC INC. is in the Manufacturing sector.