There have been 50 recent insider transactions recorded for Thermo Fisher Scientific Inc. (TMO), including 20 buys and 27 sells. Total insider buying was valued at $37.23M and total insider selling at $48.28M.
Notable insiders with recent activity include Johnson Jennifer M, Sperling Scott M, Lynch Karen S. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — TMO
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-03-28 |
Johnson Jennifer M |
Director |
RSU Award |
66 |
- |
- |
661 |
| 2026-03-28 |
Sperling Scott M |
Director |
RSU Award |
90 |
- |
- |
17,592 |
| 2026-03-28 |
Lynch Karen S |
Director |
RSU Award |
66 |
- |
- |
291 |
| 2026-03-28 |
Weisler Dion J |
Director |
RSU Award |
79 |
- |
- |
2,718 |
| 2026-03-28 |
Keith R. Alexandra |
Director |
RSU Award |
66 |
- |
- |
1,270 |
| 2026-03-11 |
Shafer Michael D |
Executive Vice President |
Informative Sell |
1,607 |
$499.40 |
$802.54K |
20,950 |
| 2026-03-05 |
Casper Marc N |
Chairman & CEO |
Option Exercise (Sell) |
4,000 |
$309.63 |
$1.24M |
40,550 |
| 2026-03-04 |
Casper Marc N |
Chairman & CEO |
Option Exercise (Sell) |
5,000 |
$309.63 |
$1.55M |
44,550 |
| 2026-03-03 |
Casper Marc N |
Chairman & CEO |
Option Exercise (Sell) |
5,000 |
$309.63 |
$1.55M |
49,550 |
| 2026-03-01 |
Meyer James |
Sr. Vice President & CFO |
Unknown |
6,851 |
$513.68 |
$3.52M |
- |
| 2026-02-28 |
Casper Marc N |
Chairman & CEO |
Tax Withholding of RSU |
1,211 |
$521.11 |
$631.06K |
123,925 |
| 2026-02-28 |
Lagarde Michel |
Executive Vice President |
Tax Withholding of RSU |
360 |
$521.11 |
$187.6K |
85,151 |
| 2026-02-28 |
Williamson Stephen |
Retiring Sr. VP and CFO |
Tax Withholding of RSU |
247 |
$521.11 |
$128.71K |
32,499 |
| 2026-02-28 |
Britt Lisa P. |
Sr. VP and Chief HR Officer |
Tax Withholding of RSU |
85 |
$521.11 |
$44.29K |
14,784 |
| 2026-02-28 |
Lowery Frederick M. |
Executive Vice President |
Tax Withholding of RSU |
264 |
$521.11 |
$137.57K |
15,044 |
| 2026-02-28 |
Holmes Joseph R. |
VP & Chief Accounting Officer |
Tax Withholding of RSU |
4 |
$521.11 |
$2.08K |
2,966 |
| 2026-02-28 |
Pettiti Gianluca |
President & COO |
Tax Withholding of RSU |
332 |
$521.11 |
$173.01K |
25,451 |
| 2026-02-28 |
Shafer Michael D |
Executive Vice President |
Tax Withholding of RSU |
252 |
$521.11 |
$131.32K |
22,557 |
| 2026-02-25 |
Casper Marc N |
Chairman & CEO |
RSU Award |
32,109 |
$513.68 |
$16.49M |
32,109 |
| 2026-02-25 |
Lagarde Michel |
Executive Vice President & COO |
RSU Award |
2,231 |
- |
- |
86,348 |
| 2026-02-25 |
Williamson Stephen |
Sr. VP and CFO |
RSU Award |
1,534 |
- |
- |
33,421 |
| 2026-02-25 |
Britt Lisa P. |
Sr. VP and Chief HR Officer |
RSU Award |
5,139 |
$513.68 |
$2.64M |
5,139 |
| 2026-02-25 |
Lowery Frederick M. |
Executive Vice President |
RSU Award |
1,638 |
- |
- |
15,941 |
| 2026-02-25 |
Holmes Joseph R. |
VP & Chief Accounting Officer |
RSU Award |
985 |
$513.68 |
$505.97K |
985 |
| 2026-02-25 |
Pettiti Gianluca |
Executive Vice President |
RSU Award |
16,270 |
$513.68 |
$8.36M |
16,270 |
| 2026-02-25 |
Shafer Michael D |
Executive Vice President |
RSU Award |
13,698 |
$513.68 |
$7.04M |
13,698 |
| 2026-02-25 |
Shropshire Thomas B Jr. |
SVP and General Counsel |
RSU Award |
4,281 |
$513.68 |
$2.2M |
4,281 |
| 2026-02-09 |
Pettiti Gianluca |
Executive Vice President |
Informative Sell |
400 |
$541.20 |
$216.48K |
20,752 |
| 2025-12-31 |
Johnson Jennifer M |
Director |
RSU Award |
54 |
- |
- |
595 |
| 2025-12-31 |
Sperling Scott M |
Director |
RSU Award |
73 |
- |
- |
17,502 |
| 2025-12-31 |
Lynch Karen S |
Director |
RSU Award |
54 |
- |
- |
225 |
| 2025-12-31 |
Weisler Dion J |
Director |
RSU Award |
65 |
- |
- |
2,639 |
| 2025-12-31 |
Keith R. Alexandra |
Director |
RSU Award |
54 |
- |
- |
1,204 |
| 2025-12-10 |
Sperling Scott M |
Director |
Gift (Given) |
4,386 |
- |
- |
68,980 |
| 2025-12-04 |
Lagarde Michel |
Executive Vice President & COO |
Option Exercise (Sell) |
18,637 |
$105.17 |
$1.96M |
- |
| 2025-12-03 |
Lagarde Michel |
Executive Vice President & COO |
Option Exercise (Sell) |
68,000 |
$105.17 |
$7.15M |
18,637 |
| 2025-12-02 |
Lowery Frederick M. |
Executive Vice President |
Option Exercise (Sell) |
6,912 |
$253.99 |
$1.76M |
- |
| 2025-12-02 |
Shropshire Thomas B Jr. |
SVP and General Counsel |
Tax Withholding of RSU |
337 |
$580.37 |
$195.58K |
5,080 |
| 2025-12-02 |
Lagarde Michel |
Executive Vice President & COO |
Informative Sell |
30,000 |
$581.92 |
$17.46M |
29,480 |
| 2025-12-01 |
Lowery Frederick M. |
Executive Vice President |
Option Exercise (Sell) |
6,913 |
$253.99 |
$1.76M |
6,912 |
| 2025-11-25 |
Shafer Michael D |
Executive Vice President |
Option Exercise (Sell) |
2,250 |
$294.02 |
$661.55K |
- |
| 2025-11-14 |
Williamson Stephen |
Sr. VP and CFO |
Gift (Given) |
433 |
- |
- |
31,887 |
| 2025-11-13 |
Lagarde Michel |
Executive Vice President & COO |
Option Exercise (Sell) |
4,638 |
$253.99 |
$1.18M |
- |
| 2025-11-12 |
Britt Lisa P. |
Sr. VP and Chief HR Officer |
Informative Sell |
1,058 |
$588.27 |
$622.38K |
13,087 |
| 2025-11-10 |
Pettiti Gianluca |
Executive Vice President |
Option Exercise (Sell) |
725 |
$253.99 |
$184.14K |
- |
| 2025-11-07 |
Britt Lisa P. |
Sr. VP and Chief HR Officer |
Option Exercise (Sell) |
8,475 |
$253.99 |
$2.15M |
- |
| 2025-10-27 |
Casper Marc N |
Chairman & CEO |
Option Exercise (Sell) |
7,250 |
$253.99 |
$1.84M |
- |
| 2025-10-24 |
Casper Marc N |
Chairman & CEO |
Option Exercise (Sell) |
17,104 |
$253.99 |
$4.34M |
7,250 |
| 2025-10-24 |
Pettiti Gianluca |
Executive Vice President |
Informative Sell |
400 |
$574.15 |
$229.66K |
21,152 |
| 2025-09-27 |
Johnson Jennifer M |
Director |
RSU Award |
67 |
- |
- |
541 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
