TMO
HealthcareThermo Fisher Scientific Inc.
$466.50-9.39 (-1.97%)
Prev Close
$475.89
Open
$478.93
High
$481.58
Low
$464.87
Volume
1.87M
Market Cap
$176.79B
P/E
26.30
Div Yield
0.00%
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 31 insider sales totaling $118.41M. The most recent insider transaction was by Shafer Michael D (officer: Executive Vice President), who sold $802.5K worth of shares on Mar 12, 2026. Thermo Fisher Scientific Inc. operates in the Healthcare sector, within the Medical - Diagnostics & Research industry, with a market cap of $176.79B.
Buys (12M)
0
$0.00
Sells (12M)
31
$118.41M
Net Activity
Net Seller
$118.41M
Active Insiders
10
last 12 mo
TMO Price Chart
TMO Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| 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 |
| Mar 5, 2026↗ | CASPER MARC N | director, officer: Chairman & CEO | Sell | 19,400 | $507.87 | $9.85M | 128,565 |
| Feb 11, 2026↗ | Pettiti Gianluca | officer: Executive Vice President | Sell | 400 | $541.20 | $216.5K | 20,752.2 |
| 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 | 423 | $491.19 | $207.8K | 0 |
| Sep 2, 2025↗ | Lagarde Michel | Executive Vice President & COO | Sell | 961 | $489.84 | $470.7K | 0 |
| Sep 2, 2025↗ | Lowery Frederick M. | Executive Vice President | Sell | 668 | $489.53 | $327.0K | 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 | 384 | $529.11 | $203.2K | 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 |
| Mar 4, 2025↗ | Pettiti Gianluca | Executive Vice President | Sell | 1,292 | $529.31 | $683.9K | 0 |
| Mar 4, 2025↗ | Shafer Michael D | Executive Vice President | Sell | 2,771 | $530.11 | $1.47M | 0 |
| Mar 4, 2025↗ | Williamson Stephen | Sr. VP and CFO | Sell | 1,616 | $529.07 | $855.0K | 0 |
| Feb 26, 2025↗ | Lowery Frederick M. | Executive Vice President | Sell | 18,300 | $531.81 | $9.73M | 0 |
| Feb 21, 2025↗ | Chai Nelson | Director | Buy | 20 | $551.90 | $11.0K | 0 |
| Feb 21, 2025↗ | Chai Nelson | Director | Sell | 16 | $528.09 | $8.4K | 0 |
| Feb 5, 2025↗ | Pettiti Gianluca | Executive Vice President | Sell | 300 | $585.59 | $175.7K | 0 |
| Feb 5, 2025↗ | Williamson Stephen | Sr. VP and CFO | Sell | 19,650 | $589.36 | $11.58M | 0 |
TMO Insider Buying Activity
The following table shows recent insider purchases of Thermo Fisher Scientific Inc. (TMO) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Feb 21, 2025↗ | Chai Nelson | Director | Buy | 20 | $551.90 | $11.0K | 0 |
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 |
|---|---|---|---|---|---|---|---|
| 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 |
| Mar 5, 2026↗ | CASPER MARC N | director, officer: Chairman & CEO | Sell | 19,400 | $507.87 | $9.85M | 128,565 |
| Feb 11, 2026↗ | Pettiti Gianluca | officer: Executive Vice President | Sell | 400 | $541.20 | $216.5K | 20,752.2 |
| 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 | 423 | $491.19 | $207.8K | 0 |
| Sep 2, 2025↗ | Lagarde Michel | Executive Vice President & COO | Sell | 961 | $489.84 | $470.7K | 0 |
| Sep 2, 2025↗ | Lowery Frederick M. | Executive Vice President | Sell | 668 | $489.53 | $327.0K | 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 | 384 | $529.11 | $203.2K | 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 |
| Mar 4, 2025↗ | Pettiti Gianluca | Executive Vice President | Sell | 1,292 | $529.31 | $683.9K | 0 |
| Mar 4, 2025↗ | Shafer Michael D | Executive Vice President | Sell | 2,771 | $530.11 | $1.47M | 0 |
| Mar 4, 2025↗ | Williamson Stephen | Sr. VP and CFO | Sell | 1,616 | $529.07 | $855.0K | 0 |
| Feb 26, 2025↗ | Lowery Frederick M. | Executive Vice President | Sell | 18,300 | $531.81 | $9.73M | 0 |
| Feb 21, 2025↗ | Chai Nelson | Director | Sell | 16 | $528.09 | $8.4K | 0 |
| Feb 5, 2025↗ | Pettiti Gianluca | Executive Vice President | Sell | 300 | $585.59 | $175.7K | 0 |
| Feb 5, 2025↗ | Williamson Stephen | Sr. VP and CFO | Sell | 19,650 | $589.36 | $11.58M | 0 |
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