TMO insider trades & Congress trades
Thermo Fisher Scientific Inc.: public insider filings and Congress disclosures, in one place.
Bourse has recorded 93 open-market insider transactions in Thermo Fisher Scientific Inc. (TMO) (0 purchases with code P and 93 sales with code S), the most recent on October 28, 2026.
In the last 90 days: 0 purchases by 0 insiders ($0) and 22 sales by 3 ($24.3M).
Members of Congress have disclosed 9 trades in TMO (7 purchases, 2 sales), the latest transaction dated November 20, 2020. Congress filings can arrive up to 45 days after the trade.
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Oct 28, 2026 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 2,831 | $706.45 | $2.00M | – |
| Aug 31, 2026 | Pettiti Gianluca | President & COO | Sell | 400 | $614.38 | $246K | +0.1% |
| Aug 31, 2026 | Pettiti Gianluca | President & COO | Sell | 3,733 | $614.38 | $2.29M | +0.1% |
| Aug 24, 2026 | Casper Marc N | Chairman & CEO | Sell | 101 | $625.41 | $63K | +0.1% |
| Aug 24, 2026 | Casper Marc N | Chairman & CEO | Sell | 33 | $626.59 | $21K | +0.1% |
| Aug 24, 2026 | Casper Marc N | Chairman & CEO | Sell | 79 | $628.01 | $50K | +0.1% |
| Aug 24, 2026 | Casper Marc N | Chairman & CEO | Sell | 62 | $628.74 | $39K | +0.1% |
| Aug 21, 2026 | Casper Marc N | Chairman & CEO | Sell | 2,727 | $625.46 | $1.71M | +0.1% |
| Aug 21, 2026 | Casper Marc N | Chairman & CEO | Sell | 3,014 | $626.51 | $1.89M | +0.1% |
| Aug 21, 2026 | Casper Marc N | Chairman & CEO | Sell | 1,791 | $627.39 | $1.12M | +0.1% |
| Aug 21, 2026 | Casper Marc N | Chairman & CEO | Sell | 2,147 | $628.61 | $1.35M | +0.1% |
| Aug 21, 2026 | Casper Marc N | Chairman & CEO | Sell | 321 | $629.10 | $202K | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 909 | $625.45 | $569K | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 821 | $626.83 | $515K | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 1,314 | $627.66 | $825K | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 2,601 | $628.82 | $1.64M | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 1,250 | $629.85 | $787K | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 1,035 | $630.87 | $653K | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 1,430 | $632.01 | $904K | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 560 | $632.94 | $354K | +0.1% |
| Aug 20, 2026 | Casper Marc N | Chairman & CEO | Sell | 80 | $633.99 | $51K | +0.1% |
| Aug 19, 2026 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 11,440 | $613.12 | $7.01M | +0.0% |
| Aug 11, 2026 | Shafer Michael D | Executive Vice President | Sell | 11,200 | $600.00 | $6.72M | +0.0% |
| Aug 11, 2026 | Shafer Michael D | Executive Vice President | Sell | 14,300 | $600.00 | $8.58M | +0.0% |
| Aug 7, 2026 | Holmes Joseph R. | VP & Chief Accounting Officer | Sell | 420 | $584.81 | $246K | +0.0% |
| Aug 7, 2026 | Casper Marc N | Chairman & CEO | Sell | 6 | $577.37 | $3K | +0.0% |
| Aug 7, 2026 | Casper Marc N | Chairman & CEO | Sell | 4 | $579.26 | $2K | +0.0% |
| Aug 7, 2026 | Casper Marc N | Chairman & CEO | Sell | 2 | $579.27 | $1K | +0.0% |
| Aug 7, 2026 | Casper Marc N | Chairman & CEO | Sell | 4 | $580.71 | $2K | +0.0% |
| Aug 7, 2026 | Casper Marc N | Chairman & CEO | Sell | 3 | $580.72 | $2K | +0.0% |
Showing the 30 most recent of 93 transactions.
Congress trades
Disclosures under the STOCK Act. Amounts are reported as ranges; some trades are made by a spouse or dependent child.
| Traded | Member | Party | Type | Amount | Disclosed | Filing |
|---|---|---|---|---|---|---|
| Nov 20, 2020 | Thomas R Carper | Senate | Buy | $1,001 - $15,000 | – | Source |
| Feb 28, 2019 | John F Reed | Senate | Sell | $1,001 - $15,000 | – | Source |
| Jun 4, 2018 | Susan M Collins | Senate | Buy | $1,001 - $15,000 | – | Source |
| Mar 9, 2018 | John F Reed | Senate | Sell | $1,001 - $15,000 | – | Source |
| Aug 31, 2017 | Thomas R Carper | Senate | Buy | $1,001 - $15,000 | – | Source |
| Mar 6, 2017 | John F Reed | Senate | Buy | $1,001 - $15,000 | – | Source |
| Nov 23, 2016 | John F Reed | Senate | Buy | $1,001 - $15,000 | – | Source |
| Sep 22, 2016 | John F Reed | Senate | Buy | $1,001 - $15,000 | – | Source |
| Sep 12, 2016 | John F Reed | Senate | Buy | $1,001 - $15,000 | – | Source |
Data as of November 12, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
See all the latest insider trades. New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
See these filings as they land
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