THERMO FISHER SCIENTIFIC INC. (TMO)

Latest Insider Confidence Score

2026Q1

44.4
Bearish

Company insider confidence (by quarter)

2018Q1 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Durbin Patrick M President 38,868 Aug 29, 2019
Casper Marc N CEO 30,908 Oct 28, 2025
Lowery Frederick M. President 29,373.24 Dec 3, 2025
Herrema Gregory J. President 26,967 Aug 29, 2019
Lewent Judy C — 18,187 May 23, 2019

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 3, 2026 Mar 5, 2026 CASPER MARC N CEO Sell 46.9 -10,000 -0.39% ✓ $5.1M
Feb 28, 2026 Mar 2, 2026 CASPER MARC N CEO Sell 17.5 -4,684 -2.94% ✗ $2.4M
Feb 28, 2026 Mar 2, 2026 Britt Lisa P. Sr. VP and Chief HR Officer Sell 22.5 -348 -1.16% ✗ $181.4K
Feb 28, 2026 Mar 2, 2026 Holmes Joseph R. VP & Chief Accounting Officer Sell 32.5 -116 -0.96% ✗ $60.8K
Feb 28, 2026 Mar 2, 2026 Lagarde Michel President Sell 30.0 -1,196 -0.70% ✗ $623.6K
Feb 28, 2026 Mar 2, 2026 Pettiti Gianluca COO Sell 20.0 -1,073 -4.05% ✗ $559.4K
Feb 28, 2026 Mar 2, 2026 Williamson Stephen CFO Sell 20.0 -921 -2.00% ✗ $480.4K
Feb 28, 2026 Mar 2, 2026 Shafer Michael D President Sell 20.0 -815 -1.17% ✗ $425.1K
Feb 28, 2026 Mar 2, 2026 Lowery Frederick M. President Sell 20.0 -896 -5.24% ✗ $467.4K
Feb 25, 2026 Feb 27, 2026 Williamson Stephen CFO Neutral 82.5 +1,534 3.44% ✗ -
Feb 25, 2026 Feb 27, 2026 Lagarde Michel COO Neutral 82.5 +2,231 2.65% ✗ -
Feb 25, 2026 Feb 27, 2026 Britt Lisa P. Sr. VP and Chief HR Officer Neutral 90.0 +2,045 15.63% ✗ -
Feb 25, 2026 Feb 27, 2026 Lowery Frederick M. President Neutral 90.0 +1,638 10.57% ✗ -
Feb 25, 2026 Feb 27, 2026 Shropshire Thomas B Jr. SVP and General Counsel Neutral 90.0 +978 19.25% ✗ -
Feb 25, 2026 Feb 27, 2026 Shafer Michael D President Neutral 90.0 +4,698 25.16% ✗ -
Feb 25, 2026 Feb 27, 2026 Holmes Joseph R. VP & Chief Accounting Officer Neutral 90.0 +770 33.29% ✗ -
Feb 25, 2026 Feb 27, 2026 Pettiti Gianluca President Neutral 90.0 +5,772 27.81% ✗ -
Feb 25, 2026 Feb 27, 2026 CASPER MARC N CEO Neutral 90.0 +14,848 10.26% ✗ -
Feb 9, 2026 Feb 11, 2026 Pettiti Gianluca President Sell 46.3 -400 -1.89% ✓ $216.5K
Dec 31, 2025 Jan 5, 2026 Lynch Karen S Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Jan 5, 2026 Keith R. Alexandra Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Jan 5, 2026 SPERLING SCOTT M Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Jan 5, 2026 WEISLER DION J Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Jan 5, 2026 JOHNSON JENNIFER M Director Neutral 52.5 - 0.00% ✗ -
Dec 10, 2025 Dec 11, 2025 SPERLING SCOTT M Director Neutral 27.5 -4,386 -5.98% ✗ -
Dec 4, 2025 Dec 5, 2025 Lagarde Michel COO Sell 15.0 -22,046 -20.77% ✗ $12.4M
Dec 2, 2025 Dec 4, 2025 Lagarde Michel COO Sell 15.0 -62,000 -27.56% ✗ $36.1M
Dec 2, 2025 Dec 3, 2025 Shropshire Thomas B Jr. SVP and General Counsel Sell 22.5 -337 -6.23% ✗ $195.9K
Dec 1, 2025 Dec 3, 2025 Lowery Frederick M. President Sell 3.8 -13,825 -31.61% ✓ $8.2M
Nov 25, 2025 Nov 26, 2025 Shafer Michael D President Sell 8.8 -10,725 -22.26% ✓ $6.4M
Nov 14, 2025 Nov 17, 2025 Williamson Stephen CFO Neutral 37.5 -433 -0.96% ✗ -
Nov 12, 2025 Nov 14, 2025 Britt Lisa P. Sr. VP and Chief HR Officer Sell 20.0 -1,057 -7.48% ✗ $622.1K
Nov 13, 2025 Nov 14, 2025 Lagarde Michel COO Sell 17.5 -4,638 -16.49% ✗ $2.8M
Nov 10, 2025 Nov 12, 2025 Pettiti Gianluca President Sell 27.5 -2,975 -6.57% ✓ $1.7M
Nov 7, 2025 Nov 10, 2025 Britt Lisa P. Sr. VP and Chief HR Officer Sell 16.3 -10,225 -26.55% ✗ $5.8M
Oct 24, 2025 Oct 28, 2025 Pettiti Gianluca President Sell 45.0 -400 -1.86% ✓ $229.7K
Oct 24, 2025 Oct 28, 2025 CASPER MARC N CEO Sell 37.5 -24,354 -1.25% ✓ $13.9M
Sep 27, 2025 Sep 30, 2025 WEISLER DION J Director Neutral 52.5 - 0.00% ✗ -
Sep 27, 2025 Sep 30, 2025 SPERLING SCOTT M Director Neutral 52.5 - 0.00% ✗ -
Sep 27, 2025 Sep 30, 2025 Keith R. Alexandra Director Neutral 52.5 - 0.00% ✗ -
Sep 27, 2025 Sep 30, 2025 Lynch Karen S Director Neutral 52.5 - 0.00% ✗ -
Sep 27, 2025 Sep 30, 2025 JOHNSON JENNIFER M Director Neutral 52.5 - 0.00% ✗ -
Sep 5, 2025 Sep 9, 2025 CASPER MARC N CEO Sell 48.8 -400 -0.28% ✓ $200.2K
Aug 28, 2025 Sep 2, 2025 CASPER MARC N CEO Sell 30.0 -1,411 -0.54% ✗ $691.2K
Aug 28, 2025 Sep 2, 2025 Williamson Stephen CFO Sell 30.0 -783 -0.54% ✗ $383.6K
Aug 28, 2025 Sep 2, 2025 Shafer Michael D President Sell 30.0 -598 -0.78% ✗ $292.9K
Aug 28, 2025 Sep 2, 2025 Lowery Frederick M. President Sell 20.0 -667 -1.11% ✗ $327K
Aug 28, 2025 Sep 2, 2025 Lagarde Michel COO Sell 30.0 -961 -1.00% ✗ $470.7K
Aug 28, 2025 Sep 2, 2025 Holmes Joseph R. VP & Chief Accounting Officer Sell 22.5 -421 -2.88% ✗ $207.8K
Aug 28, 2025 Sep 2, 2025 Pettiti Gianluca President Sell 20.0 -814 -3.64% ✗ $399K
Aug 28, 2025 Sep 2, 2025 Britt Lisa P. Sr. VP and Chief HR Officer Sell 22.5 -328 -2.03% ✗ $161K
Aug 22, 2025 Aug 26, 2025 CASPER MARC N CEO Sell 26.3 -10,000 -6.41% ✓ $5M
Aug 19, 2025 Aug 21, 2025 CASPER MARC N CEO Sell 50.0 -496 -0.13% ✓ $248K
Aug 6, 2025 Aug 7, 2025 CASPER MARC N CEO Sell 41.3 -18,000 -0.75% ✓ $8.2M
Jul 25, 2025 Jul 28, 2025 Pettiti Gianluca President Sell 45.0 -400 -1.76% ✓ $192K
Jun 28, 2025 Jul 1, 2025 WEISLER DION J Director Neutral 52.5 - 0.00% ✗ -
Jun 28, 2025 Jul 1, 2025 SPERLING SCOTT M Director Neutral 52.5 - 0.00% ✗ -
Jun 28, 2025 Jul 1, 2025 Keith R. Alexandra Director Neutral 52.5 - 0.00% ✗ -
Jun 28, 2025 Jul 1, 2025 Lynch Karen S Director Neutral 52.5 - 0.00% ✗ -
Jun 28, 2025 Jul 1, 2025 JOHNSON JENNIFER M Director Neutral 52.5 - 0.00% ✗ -
Jun 2, 2025 Jun 3, 2025 Shropshire Thomas B Jr. SVP and General Counsel Neutral 90.0 +5,417 100.00% ✗ -
Jun 3, 2025 Shropshire Thomas B Jr. SVP and General Counsel Neutral 52.5 - 0.00% ✗ -
May 21, 2025 May 22, 2025 CASPER MARC N CEO Neutral 52.5 - 0.00% ✗ -
May 21, 2025 May 22, 2025 Chai Nelson Director Neutral 82.5 +565 3.96% ✗ -
May 21, 2025 May 22, 2025 CHANDY RUBY R Director Neutral 90.0 +565 23.55% ✗ -
May 21, 2025 May 22, 2025 HARRIS C MARTIN Director Neutral 85.0 +565 6.67% ✗ -
May 21, 2025 May 22, 2025 Keith R. Alexandra Director Neutral 90.0 +565 36.74% ✗ -
May 21, 2025 May 22, 2025 MULLEN JAMES C Director Neutral 90.0 +565 19.98% ✗ -
May 21, 2025 May 22, 2025 Spar Debora L Director Neutral 90.0 +565 36.55% ✗ -
May 21, 2025 May 22, 2025 Lynch Karen S Director Neutral 90.0 +565 330.41% ✗ -
May 21, 2025 May 22, 2025 JOHNSON JENNIFER M Director Neutral 90.0 +565 166.67% ✗ -
May 21, 2025 May 22, 2025 Jacks Tyler Director Neutral 85.0 +565 6.73% ✗ -
May 21, 2025 May 22, 2025 WEISLER DION J Director Sell 91.3 +511 11.33% ✗ $21.3K
May 21, 2025 May 22, 2025 SPERLING SCOTT M Director Neutral 67.5 +565 0.78% ✗ -
May 12, 2025 May 13, 2025 Pettiti Gianluca President Sell 45.0 -400 -1.73% ✓ $164.4K
Apr 28, 2025 Apr 30, 2025 Pettiti Gianluca President Sell 45.0 -300 -1.28% ✓ $129K
Mar 29, 2025 Apr 1, 2025 WEISLER DION J Director Neutral 52.5 - 0.00% ✗ -
Mar 29, 2025 Apr 1, 2025 SPERLING SCOTT M Director Neutral 52.5 - 0.00% ✗ -
Mar 29, 2025 Apr 1, 2025 Lynch Karen S Director Neutral 52.5 - 0.00% ✗ -
Mar 29, 2025 Apr 1, 2025 Keith R. Alexandra Director Neutral 52.5 - 0.00% ✗ -
Mar 29, 2025 Apr 1, 2025 JOHNSON JENNIFER M Director Neutral 52.5 - 0.00% ✗ -
Mar 10, 2025 Mar 11, 2025 Boxer Michael A SVP and General Counsel Sell 17.5 -3,775 -25.87% ✗ $2M
Mar 4, 2025 Mar 6, 2025 CASPER MARC N CEO Sell 41.3 -18,000 -0.87% ✓ $9.3M
Feb 28, 2025 Mar 4, 2025 Williamson Stephen CFO Sell 20.0 -1,616 -3.41% ✗ $855K
Feb 28, 2025 Mar 4, 2025 Shafer Michael D President Sell 20.0 -2,770 -12.56% ✓ $1.5M
Feb 28, 2025 Mar 4, 2025 Pettiti Gianluca President Sell 20.0 -1,292 -5.22% ✗ $683.9K
Feb 28, 2025 Mar 4, 2025 Lowery Frederick M. President Sell 20.0 -1,496 -8.46% ✗ $791.8K
Feb 28, 2025 Mar 4, 2025 Lagarde Michel COO Sell 20.0 -1,558 -3.02% ✗ $824.3K
Feb 28, 2025 Mar 4, 2025 Holmes Joseph R. VP & Chief Accounting Officer Sell 22.5 -97 -1.04% ✗ $51.8K
Feb 28, 2025 Mar 4, 2025 CASPER MARC N CEO Sell 17.5 -5,347 -3.53% ✗ $2.8M
Feb 28, 2025 Mar 4, 2025 Britt Lisa P. Sr. VP and Chief HR Officer Sell 22.5 -395 -1.20% ✗ $209.5K
Feb 28, 2025 Mar 4, 2025 Boxer Michael A SVP and General Counsel Sell 22.5 -384 -2.56% ✗ $203.2K
Feb 24, 2025 Feb 26, 2025 Lowery Frederick M. President Sell 3.8 -18,300 -50.27% ✓ $9.7M
Feb 19, 2025 Feb 21, 2025 CASPER MARC N CEO Neutral 90.0 +23,736 18.35% ✗ -
Feb 19, 2025 Feb 21, 2025 Britt Lisa P. Sr. VP and Chief HR Officer Neutral 90.0 +3,482 12.64% ✗ -
Feb 19, 2025 Feb 21, 2025 Boxer Michael A SVP and General Counsel Neutral 90.0 +2,611 20.81% ✗ -
Feb 19, 2025 Feb 21, 2025 Lagarde Michel COO Neutral 90.0 +9,649 56.81% ✗ -
Feb 19, 2025 Feb 21, 2025 Pettiti Gianluca President Neutral 90.0 +8,879 54.26% ✗ -
Feb 19, 2025 Feb 21, 2025 Holmes Joseph R. VP & Chief Accounting Officer Neutral 90.0 +631 35.04% ✗ -
Nov 7, 2024 Feb 21, 2025 Chai Nelson Director Buy 47.5 +4 0.03% ✗ $2.6K