Thermo Fisher Scientific Inc. Insider Trading

TMO

Last 12 months

Insiders sold $146M and bought nothing on the open market.

52% of the selling was scheduled in advance under 10b5-1 plans. Executive Vice President & COO Michel Lagarde sold $36.1M on Dec 3, 2025, 49% of their stake, outside a plan. The last open-market buy by an executive or director was in Dec 2024.

Net open-market

−$146M

0 buys · 25 sales

Under a 10b5-1 plan

52%

of the value sold

Insiders who bought / sold

0 / 7

executives and directors

Last open-market buy

Dec 2024

Dec 9, 2024

Get an email when TMO's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 28	Lisa P. Britt Sr. VP and Chief HR Officer	SoldNo plan	2,831	$706.45	$2M	20%	Form 4
Aug 31	Gianluca Pettiti President & COO	Sold10b5-1 plan 2 parts	4,133	$614.38 average	$2.54M	15%	Form 4
Aug 24	Marc N Casper Chairman & CEO	Sold10b5-1 plan 4 parts	275	$627.05 average	172K	0.2%	Form 4
Aug 20 – 21	Marc N Casper Chairman & CEO	Sold10b5-1 plan 14 parts	20,000	$628.09 average	$12.6M	12%	Form 4
Aug 19	Lisa P. Britt Sr. VP and Chief HR Officer	SoldNo plan	11,440	$613.12	$7.01M	44%	Form 4
Aug 11	Michael D Shafer Executive Vice President	Sold10b5-1 plan 2 parts	25,500	$600.00 average	$15.3M	55%	Form 4
Aug 7	Joseph R. Holmes VP & Chief Accounting Officer	SoldNo plan	420	$584.81	246K	12%	Form 4
Aug 7	Marc N Casper Chairman & CEO	Sold10b5-1 plan 27 parts	4,883	$586.12 average	$2.86M	3.4%	Form 4
Aug 6	Marc N Casper Chairman & CEO	Sold10b5-1 plan 18 parts	15,000	$574.46 average	$8.62M	10%	Form 4
Aug 6	Lisa P. Britt Sr. VP and Chief HR Officer	SoldNo plan	5,850	$580.00	$3.39M	28%	Form 4
Aug 5	Marc N Casper Chairman & CEO	Sold10b5-1 plan 22 parts	15,000	$575.23 average	$8.63M	10%	Form 4
Jul 27	Gianluca Pettiti President & COO	Sold10b5-1 plan	400	$565.00	226K	1.6%	Form 4
Apr 27	Gianluca Pettiti President & COO	Sold10b5-1 plan	400	$462.66	185K	1.6%	Form 4
Mar 11	Michael D Shafer Executive Vice President	Sold10b5-1 plan	1,607	$499.40	803K	7.1%	Form 4
Mar 5	Marc N Casper Chairman & CEO	Sold10b5-1 plan 13 parts	4,000	$514.82 average	$2.06M	2.5%	Form 4
Mar 3 – 4	Marc N Casper Chairman & CEO	Sold10b5-1 plan 20 parts	10,000	$507.75 average	$5.08M	6.1%	Form 4
Feb 9	Gianluca Pettiti Executive Vice President	Sold10b5-1 plan	400	$541.20	216K	1.9%	Form 4
Dec 4, 2025	Michel Lagarde Executive Vice President & COO	SoldNo plan	22,046	$563.56	$12.4M	21%	Form 4
Dec 2, 2025 – Dec 3, 2025	Michel Lagarde Executive Vice President & COO	SoldNo plan 3 parts	62,000	$582.68 average	$36.1M	49%	Form 4
Dec 1, 2025 – Dec 2, 2025	Frederick M. Lowery Executive Vice President	Sold10b5-1 plan 2 parts	13,825	$589.81 average	$8.15M	47%	Form 4
Nov 25, 2025	Michael D Shafer Executive Vice President	Sold10b5-1 plan 2 parts	10,725	$600.00 average	$6.43M	36%	Form 4
Nov 13, 2025	Michel Lagarde Executive Vice President & COO	SoldNo plan	4,638	$594.42	$2.76M	16%	Form 4
Nov 12, 2025	Lisa P. Britt Sr. VP and Chief HR Officer	SoldNo plan	1,058	$588.27	622K	7.5%	Form 4
Nov 10, 2025	Gianluca Pettiti Executive Vice President	Sold10b5-1 plan 2 parts	2,975	$580.00 average	$1.73M	12%	Form 4
Nov 7, 2025	Lisa P. Britt Sr. VP and Chief HR Officer	SoldNo plan 2 parts	10,225	$571.62 average	$5.84M	42%	Form 4
Oct 24, 2025 – Oct 27, 2025	Marc N Casper Chairman & CEO	Sold10b5-1 plan 16 parts	24,354	$571.33 average	$13.9M	14%	Form 4
Oct 24, 2025	Gianluca Pettiti Executive Vice President	Sold10b5-1 plan	400	$574.15	230K	1.9%	Form 4
Sep 5, 2025	Marc N Casper Chairman & CEO	Sold10b5-1 plan 3 parts	400	$500.50 average	200K	0.3%	Form 4
Aug 29, 2025	Joseph R. Holmes VP & Chief Accounting Officer	SoldNo plan 2 parts	385	$492.63 average	190K	14%	Form 4
Aug 22, 2025	Marc N Casper Chairman & CEO	Sold10b5-1 plan 3 parts	10,000	$500.96 average	$5.01M	6.4%	Form 4
Aug 19, 2025 – Aug 20, 2025	Marc N Casper Chairman & CEO	Sold10b5-1 plan 3 parts	496	$500.09 average	248K	0.3%	Form 4
Aug 6, 2025 – Aug 7, 2025	Marc N Casper Chairman & CEO	Sold10b5-1 plan 20 parts	18,000	$452.99 average	$8.15M	11%	Form 4
Jul 25, 2025	Gianluca Pettiti Executive Vice President	Sold10b5-1 plan	400	$479.98	192K	1.8%	Form 4
May 12, 2025	Gianluca Pettiti Executive Vice President	Sold10b5-1 plan	400	$411.11	164K	1.7%	Form 4
Apr 28, 2025	Gianluca Pettiti Executive Vice President	Sold10b5-1 plan	300	$429.93	129K	1.3%	Form 4
Mar 10, 2025	Michael A Boxer SVP and General Counsel	SoldNo plan	3,775	$532.53	$2.01M	26%	Form 4
Mar 4, 2025 – Mar 5, 2025	Marc N Casper Chairman & CEO	Sold10b5-1 plan 17 parts	18,000	$518.16 average	$9.33M	11%	Form 4
Mar 3, 2025	Michael D Shafer Executive Vice President	Sold10b5-1 plan	1,780	$530.92	945K	8.5%	Form 4
Feb 24, 2025	Frederick M. Lowery Executive Vice President	Sold10b5-1 plan	18,300	$531.81	$9.73M	50%	Form 4
Feb 19, 2025	Nelson Chai Director	SoldNo plan	16	$528.09	8K	0.1%	Form 4

Oct 28No plan
Lisa P. Britt
Sr. VP and Chief HR Officer · sold 2,831 at $706.45
$2M
20% of stake
Aug 3110b5-1 plan
Gianluca Pettiti
President & COO · sold 4,133 at avg $614.38
$2.54M
15% of stake
Aug 2410b5-1 plan
Marc N Casper
Chairman & CEO · sold 275 at avg $627.05
172K
0.2% of stake
Aug 20 – 2110b5-1 plan
Marc N Casper
Chairman & CEO · sold 20,000 at avg $628.09
$12.6M
12% of stake
Aug 19No plan
Lisa P. Britt
Sr. VP and Chief HR Officer · sold 11,440 at $613.12
$7.01M
44% of stake
Aug 1110b5-1 plan
Michael D Shafer
Executive Vice President · sold 25,500 at avg $600.00
$15.3M
55% of stake
Aug 7No plan
Joseph R. Holmes
VP & Chief Accounting Officer · sold 420 at $584.81
246K
12% of stake
Aug 710b5-1 plan
Marc N Casper
Chairman & CEO · sold 4,883 at avg $586.12
$2.86M
3.4% of stake
Aug 610b5-1 plan
Marc N Casper
Chairman & CEO · sold 15,000 at avg $574.46
$8.62M
10% of stake
Aug 6No plan
Lisa P. Britt
Sr. VP and Chief HR Officer · sold 5,850 at $580.00
$3.39M
28% of stake
Aug 510b5-1 plan
Marc N Casper
Chairman & CEO · sold 15,000 at avg $575.23
$8.63M
10% of stake
Jul 2710b5-1 plan
Gianluca Pettiti
President & COO · sold 400 at $565.00
226K
1.6% of stake
Apr 2710b5-1 plan
Gianluca Pettiti
President & COO · sold 400 at $462.66
185K
1.6% of stake
Mar 1110b5-1 plan
Michael D Shafer
Executive Vice President · sold 1,607 at $499.40
803K
7.1% of stake
Mar 510b5-1 plan
Marc N Casper
Chairman & CEO · sold 4,000 at avg $514.82
$2.06M
2.5% of stake
Mar 3 – 410b5-1 plan
Marc N Casper
Chairman & CEO · sold 10,000 at avg $507.75
$5.08M
6.1% of stake
Feb 910b5-1 plan
Gianluca Pettiti
Executive Vice President · sold 400 at $541.20
216K
1.9% of stake
Dec 4, 2025No plan
Michel Lagarde
Executive Vice President & COO · sold 22,046 at $563.56
$12.4M
21% of stake
Dec 2, 2025 – Dec 3, 2025No plan
Michel Lagarde
Executive Vice President & COO · sold 62,000 at avg $582.68
$36.1M
49% of stake
Dec 1, 2025 – Dec 2, 202510b5-1 plan
Frederick M. Lowery
Executive Vice President · sold 13,825 at avg $589.81
$8.15M
47% of stake
Nov 25, 202510b5-1 plan
Michael D Shafer
Executive Vice President · sold 10,725 at avg $600.00
$6.43M
36% of stake
Nov 13, 2025No plan
Michel Lagarde
Executive Vice President & COO · sold 4,638 at $594.42
$2.76M
16% of stake
Nov 12, 2025No plan
Lisa P. Britt
Sr. VP and Chief HR Officer · sold 1,058 at $588.27
622K
7.5% of stake
Nov 10, 202510b5-1 plan
Gianluca Pettiti
Executive Vice President · sold 2,975 at avg $580.00
$1.73M
12% of stake
Nov 7, 2025No plan
Lisa P. Britt
Sr. VP and Chief HR Officer · sold 10,225 at avg $571.62
$5.84M
42% of stake
Oct 24, 2025 – Oct 27, 202510b5-1 plan
Marc N Casper
Chairman & CEO · sold 24,354 at avg $571.33
$13.9M
14% of stake
Oct 24, 202510b5-1 plan
Gianluca Pettiti
Executive Vice President · sold 400 at $574.15
230K
1.9% of stake
Sep 5, 202510b5-1 plan
Marc N Casper
Chairman & CEO · sold 400 at avg $500.50
200K
0.3% of stake
Aug 29, 2025No plan
Joseph R. Holmes
VP & Chief Accounting Officer · sold 385 at avg $492.63
190K
14% of stake
Aug 22, 202510b5-1 plan
Marc N Casper
Chairman & CEO · sold 10,000 at avg $500.96
$5.01M
6.4% of stake
Aug 19, 2025 – Aug 20, 202510b5-1 plan
Marc N Casper
Chairman & CEO · sold 496 at avg $500.09
248K
0.3% of stake
Aug 6, 2025 – Aug 7, 202510b5-1 plan
Marc N Casper
Chairman & CEO · sold 18,000 at avg $452.99
$8.15M
11% of stake
Jul 25, 202510b5-1 plan
Gianluca Pettiti
Executive Vice President · sold 400 at $479.98
192K
1.8% of stake
May 12, 202510b5-1 plan
Gianluca Pettiti
Executive Vice President · sold 400 at $411.11
164K
1.7% of stake
Apr 28, 202510b5-1 plan
Gianluca Pettiti
Executive Vice President · sold 300 at $429.93
129K
1.3% of stake
Mar 10, 2025No plan
Michael A Boxer
SVP and General Counsel · sold 3,775 at $532.53
$2.01M
26% of stake
Mar 4, 2025 – Mar 5, 202510b5-1 plan
Marc N Casper
Chairman & CEO · sold 18,000 at avg $518.16
$9.33M
11% of stake
Mar 3, 202510b5-1 plan
Michael D Shafer
Executive Vice President · sold 1,780 at $530.92
945K
8.5% of stake
Feb 24, 202510b5-1 plan
Frederick M. Lowery
Executive Vice President · sold 18,300 at $531.81
$9.73M
50% of stake
Feb 19, 2025No plan
Nelson Chai
Director · sold 16 at $528.09
8K
0.1% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch TMO, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

TMO is in 339 US ETFs. The largest of them, with TMO's weight in each:

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Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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