TMO
Thermo Fisher Scientific Inc.$695.46-13.94 (-1.97%)Prev Close$709.18·MCap$253.24B·P/E38.23·Vol1.37M·Yield0.00%
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
24
$133.80M
◆
Net Activity
Net Seller
$133.80M
●
Active Insiders
8
last 12 mo
Over the past 12 months, insider activity at Thermo Fisher Scientific Inc. (TMO) has been exclusively selling, with 0 insider purchases totaling $0.00 and 24 insider sales totaling $133.80M. The most recent insider transaction was by Britt Lisa P. (officer: Sr. VP and Chief HR Officer), who sold $2.00M worth of shares on Oct 30, 2026. Thermo Fisher Scientific Inc. operates in the Healthcare sector, within the Medical - Diagnostics & Research industry, with a market cap of $253.24B.
TMO Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Oct 30, 2026 | Britt Lisa P. | officer: Sr. VP and Chief HR Officer | Sell | 2,831 | $706.45 | $2.00M | 11,560 |
| Sep 1, 2026 | Pettiti Gianluca | officer: President & COO | Sell | 3,733 | $614.38 | $2.29M | 23,216 |
| Aug 26, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 275 | $627.05 | $172.4K | 124,099 |
| Aug 24, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 20,000 | $628.09 | $12.56M | 133,016 |
| Aug 20, 2026 | Britt Lisa P. | officer: Sr. VP and Chief HR Officer | Sell | 11,440 | $613.12 | $7.01M | 14,784-44% |
| Aug 13, 2026 | Shafer Michael D | officer: Executive Vice President | Sell | 14,300 | $600.00 | $8.58M | 20,994-41% |
| Aug 10, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 4,764 | $586.25 | $2.79M | 124,194 |
| Aug 10, 2026 | Holmes Joseph R. | officer: VP & Chief Accounting Officer | Sell | 420 | $584.81 | $245.6K | 2,966 |
| Aug 7, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 29,520 | $574.91 | $16.97M | 133,768 |
| Aug 7, 2026 | Britt Lisa P. | officer: Sr. VP and Chief HR Officer | Sell | 5,850 | $580.00 | $3.39M | 14,784-28% |
| Jul 28, 2026 | Pettiti Gianluca | officer: President & COO | Sell | 400 | $565.00 | $226.0K | 24,651 |
| Apr 29, 2026 | Pettiti Gianluca | officer: President & COO | Sell | 400 | $462.66 | $185.1K | 25,051 |
| Mar 12, 2026 | Shafer Michael D | officer: Executive Vice President | Sell | 1,607 | $499.40 | $802.5K | 20,950 |
| Mar 9, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 4,000 | $514.82 | $2.06M | 127,905 |
| Feb 11, 2026 | Pettiti Gianluca | officer: Executive Vice President | Sell | 400 | $541.20 | $216.5K | 20,752 |
| Dec 5, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 22,046 | $563.56 | $12.42M | 0 |
| Dec 4, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 62,000 | $582.68 | $36.13M | 0 |
| Dec 3, 2025 | Lowery Frederick M. | Executive Vice President | Sell | 13,825 | $589.81 | $8.15M | 0 |
| Dec 3, 2025 | Shropshire Thomas B Jr. | SVP and General Counsel | Sell | 337 | $581.19 | $195.9K | 0 |
| Nov 26, 2025 | Shafer Michael D | Executive Vice President | Sell | 10,725 | $600.00 | $6.43M | 0 |
| Nov 14, 2025 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 1,058 | $588.03 | $622.1K | 0 |
| Nov 14, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 4,638 | $594.42 | $2.76M | 0 |
| Nov 12, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 2,975 | $580.00 | $1.73M | 0 |
| Nov 10, 2025 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 10,225 | $571.62 | $5.84M | 0 |
| Oct 28, 2025 | CASPER MARC N | Chairman & CEO | Sell | 24,354 | $571.33 | $13.91M | 0 |
| Oct 28, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 400 | $574.15 | $229.7K | 0 |
| Sep 9, 2025 | CASPER MARC N | Chairman & CEO | Sell | 400 | $500.50 | $200.2K | 0 |
| Sep 2, 2025 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 329 | $489.42 | $161.0K | 0 |
| Sep 2, 2025 | CASPER MARC N | Chairman & CEO | Sell | 1,412 | $489.51 | $691.2K | 0 |
| Sep 2, 2025 | Holmes Joseph R. | VP & Chief Accounting Officer | Sell | 412 | $491.40 | $202.5K | 0 |
| Sep 2, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 537 | $489.90 | $263.1K | 0 |
| Sep 2, 2025 | Lowery Frederick M. | Executive Vice President | Sell | 481 | $489.83 | $235.6K | 0 |
| Sep 2, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 814 | $490.16 | $399.0K | 0 |
| Sep 2, 2025 | Shafer Michael D | Executive Vice President | Sell | 597 | $490.64 | $292.9K | 0 |
| Sep 2, 2025 | Williamson Stephen | Sr. VP and CFO | Sell | 784 | $489.29 | $383.6K | 0 |
| Aug 26, 2025 | CASPER MARC N | Chairman & CEO | Sell | 10,000 | $500.96 | $5.01M | 0 |
| Aug 21, 2025 | CASPER MARC N | Chairman & CEO | Sell | 496 | $500.09 | $248.0K | 0 |
| Aug 7, 2025 | CASPER MARC N | Chairman & CEO | Sell | 18,000 | $452.99 | $8.15M | 0 |
| Jul 28, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 400 | $479.98 | $192.0K | 0 |
| May 22, 2025 | WEISLER DION J | Director | Sell | 54 | $394.81 | $21.3K | 0 |
| May 13, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 400 | $411.11 | $164.4K | 0 |
| Apr 30, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 300 | $429.93 | $129.0K | 0 |
| Mar 11, 2025 | Boxer Michael A | SVP and General Counsel | Sell | 3,775 | $532.59 | $2.01M | 0 |
| Mar 6, 2025 | CASPER MARC N | Chairman & CEO | Sell | 18,000 | $518.16 | $9.33M | 0 |
| Mar 4, 2025 | Boxer Michael A | SVP and General Counsel | Sell | 129 | $527.98 | $68.1K | 0 |
| Mar 4, 2025 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 396 | $528.95 | $209.5K | 0 |
| Mar 4, 2025 | CASPER MARC N | Chairman & CEO | Sell | 5,347 | $529.05 | $2.83M | 0 |
| Mar 4, 2025 | Holmes Joseph R. | VP & Chief Accounting Officer | Sell | 97 | $533.55 | $51.8K | 0 |
| Mar 4, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 1,558 | $529.09 | $824.3K | 0 |
| Mar 4, 2025 | Lowery Frederick M. | Executive Vice President | Sell | 1,497 | $528.93 | $791.8K | 0 |
Showing 1–50 of 126
1 / 3
TMO Insider Buying Activity
The following table shows recent insider purchases of Thermo Fisher Scientific Inc. (TMO) stock reported via SEC Form 4 filings.
No insider buying activity found for TMO in the last 12 months.
TMO Insider Selling Activity
The following table shows recent insider sales of Thermo Fisher Scientific Inc. (TMO) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Oct 30, 2026 | Britt Lisa P. | officer: Sr. VP and Chief HR Officer | Sell | 2,831 | $706.45 | $2.00M | 11,560 |
| Sep 1, 2026 | Pettiti Gianluca | officer: President & COO | Sell | 3,733 | $614.38 | $2.29M | 23,216 |
| Aug 26, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 275 | $627.05 | $172.4K | 124,099 |
| Aug 24, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 20,000 | $628.09 | $12.56M | 133,016 |
| Aug 20, 2026 | Britt Lisa P. | officer: Sr. VP and Chief HR Officer | Sell | 11,440 | $613.12 | $7.01M | 14,784-44% |
| Aug 13, 2026 | Shafer Michael D | officer: Executive Vice President | Sell | 14,300 | $600.00 | $8.58M | 20,994-41% |
| Aug 10, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 4,764 | $586.25 | $2.79M | 124,194 |
| Aug 10, 2026 | Holmes Joseph R. | officer: VP & Chief Accounting Officer | Sell | 420 | $584.81 | $245.6K | 2,966 |
| Aug 7, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 29,520 | $574.91 | $16.97M | 133,768 |
| Aug 7, 2026 | Britt Lisa P. | officer: Sr. VP and Chief HR Officer | Sell | 5,850 | $580.00 | $3.39M | 14,784-28% |
| Jul 28, 2026 | Pettiti Gianluca | officer: President & COO | Sell | 400 | $565.00 | $226.0K | 24,651 |
| Apr 29, 2026 | Pettiti Gianluca | officer: President & COO | Sell | 400 | $462.66 | $185.1K | 25,051 |
| Mar 12, 2026 | Shafer Michael D | officer: Executive Vice President | Sell | 1,607 | $499.40 | $802.5K | 20,950 |
| Mar 9, 2026 | CASPER MARC N | director, officer: Chairman & CEO | Sell | 4,000 | $514.82 | $2.06M | 127,905 |
| Feb 11, 2026 | Pettiti Gianluca | officer: Executive Vice President | Sell | 400 | $541.20 | $216.5K | 20,752 |
| Dec 5, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 22,046 | $563.56 | $12.42M | 0 |
| Dec 4, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 62,000 | $582.68 | $36.13M | 0 |
| Dec 3, 2025 | Lowery Frederick M. | Executive Vice President | Sell | 13,825 | $589.81 | $8.15M | 0 |
| Dec 3, 2025 | Shropshire Thomas B Jr. | SVP and General Counsel | Sell | 337 | $581.19 | $195.9K | 0 |
| Nov 26, 2025 | Shafer Michael D | Executive Vice President | Sell | 10,725 | $600.00 | $6.43M | 0 |
| Nov 14, 2025 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 1,058 | $588.03 | $622.1K | 0 |
| Nov 14, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 4,638 | $594.42 | $2.76M | 0 |
| Nov 12, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 2,975 | $580.00 | $1.73M | 0 |
| Nov 10, 2025 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 10,225 | $571.62 | $5.84M | 0 |
| Oct 28, 2025 | CASPER MARC N | Chairman & CEO | Sell | 24,354 | $571.33 | $13.91M | 0 |
| Oct 28, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 400 | $574.15 | $229.7K | 0 |
| Sep 9, 2025 | CASPER MARC N | Chairman & CEO | Sell | 400 | $500.50 | $200.2K | 0 |
| Sep 2, 2025 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 329 | $489.42 | $161.0K | 0 |
| Sep 2, 2025 | CASPER MARC N | Chairman & CEO | Sell | 1,412 | $489.51 | $691.2K | 0 |
| Sep 2, 2025 | Holmes Joseph R. | VP & Chief Accounting Officer | Sell | 412 | $491.40 | $202.5K | 0 |
| Sep 2, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 537 | $489.90 | $263.1K | 0 |
| Sep 2, 2025 | Lowery Frederick M. | Executive Vice President | Sell | 481 | $489.83 | $235.6K | 0 |
| Sep 2, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 814 | $490.16 | $399.0K | 0 |
| Sep 2, 2025 | Shafer Michael D | Executive Vice President | Sell | 597 | $490.64 | $292.9K | 0 |
| Sep 2, 2025 | Williamson Stephen | Sr. VP and CFO | Sell | 784 | $489.29 | $383.6K | 0 |
| Aug 26, 2025 | CASPER MARC N | Chairman & CEO | Sell | 10,000 | $500.96 | $5.01M | 0 |
| Aug 21, 2025 | CASPER MARC N | Chairman & CEO | Sell | 496 | $500.09 | $248.0K | 0 |
| Aug 7, 2025 | CASPER MARC N | Chairman & CEO | Sell | 18,000 | $452.99 | $8.15M | 0 |
| Jul 28, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 400 | $479.98 | $192.0K | 0 |
| May 22, 2025 | WEISLER DION J | Director | Sell | 54 | $394.81 | $21.3K | 0 |
| May 13, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 400 | $411.11 | $164.4K | 0 |
| Apr 30, 2025 | Pettiti Gianluca | Executive Vice President | Sell | 300 | $429.93 | $129.0K | 0 |
| Mar 11, 2025 | Boxer Michael A | SVP and General Counsel | Sell | 3,775 | $532.59 | $2.01M | 0 |
| Mar 6, 2025 | CASPER MARC N | Chairman & CEO | Sell | 18,000 | $518.16 | $9.33M | 0 |
| Mar 4, 2025 | Boxer Michael A | SVP and General Counsel | Sell | 129 | $527.98 | $68.1K | 0 |
| Mar 4, 2025 | Britt Lisa P. | Sr. VP and Chief HR Officer | Sell | 396 | $528.95 | $209.5K | 0 |
| Mar 4, 2025 | CASPER MARC N | Chairman & CEO | Sell | 5,347 | $529.05 | $2.83M | 0 |
| Mar 4, 2025 | Holmes Joseph R. | VP & Chief Accounting Officer | Sell | 97 | $533.55 | $51.8K | 0 |
| Mar 4, 2025 | Lagarde Michel | Executive Vice President & COO | Sell | 1,558 | $529.09 | $824.3K | 0 |
| Mar 4, 2025 | Lowery Frederick M. | Executive Vice President | Sell | 1,497 | $528.93 | $791.8K | 0 |
TMO Insiders
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