Form 4 Tracker
THERMO FISHER SCIENTIFIC INC.
TMO

65 insider filings · Latest: Sep 26, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Aug 6, 2025Aug 6 8:55 PMCASPER MARC N
Proposed Sale
10,000$451.82$4.5M—

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Jul 25, 2025Jul 25 4:12 PMPettiti Gianluca
Proposed Sale
400$479.98$192.0K—

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May 12, 2025May 12 2:33 PMPettiti Gianluca
Proposed Sale
400$411.11$164.4K—

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Apr 28, 2025Apr 28 1:41 PMPettiti Gianluca
Proposed Sale
300$429.93$129.0K—

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Mar 10, 2025Mar 10 6:42 PMBoxer Michael A
Proposed Sale
3,776$532.45$2.0M—

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Mar 5, 2025Mar 5 9:11 PMCASPER MARC N
Proposed Sale
8,000$520.02$4.2M—

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Mar 4, 2025Mar 4 3:28 PMCASPER MARC N
Proposed Sale
10,000$523.02$5.2M—

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Mar 3, 2025Mar 3 2:51 PMShafer Michael D
Proposed Sale
1,780$530.92$945.0K—

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Feb 24, 2025Feb 24 2:42 PMLowery Frederick M.
Proposed Sale
18,300$531.81$9.7M—

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Feb 4, 2025Feb 5 9:20 PMWilliamson Stephen
Proposed Sale
9,825$585.59$5.8M—

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Feb 3, 2025Feb 5 9:12 PMWilliamson Stephen
Proposed Sale
9,825$593.13$5.8M—

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Feb 4, 2025Feb 4 3:28 PMWilliamson Stephen
Proposed Sale
9,825$585.59$5.8M—

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Feb 4, 2025Feb 4 3:21 PMPettiti Gianluca
Proposed Sale
300$585.59$175.7K—

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Feb 3, 2025Feb 3 4:28 PMWilliamson Stephen
Proposed Sale
9,825$593.13$5.8M—

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Dec 3, 2024Dec 3 10:32 PMCASPER MARC N
Proposed Sale
10,000$532.19$5.3M—

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Dec 2, 2024Dec 2 10:09 PMCASPER MARC N
Proposed Sale
10,000$530.26$5.3M—

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Nov 8, 2024Nov 8 9:53 PMCASPER MARC N
Proposed Sale
9,000$552.86$5.0M—

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Nov 7, 2024Nov 7 9:54 PMCASPER MARC N
Proposed Sale
10,000$557.76$5.6M—

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Nov 6, 2024Nov 6 10:03 PMCASPER MARC N
Proposed Sale
10,000$558.12$5.6M—

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Nov 1, 2024Nov 1 8:16 PMCASPER MARC N
Proposed Sale
5,850$557.89$3.3M—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Sep 26, 2026Sep 29 8:14 PMDion J WeislerDirector
Grant/Award
55.56—2,846.55(D)

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Sep 26, 2026Sep 29 8:13 PMScott M SperlingDirector
Grant/Award
62.96—17,737.6(D)

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Sep 26, 2026Sep 29 8:13 PMKaren S LynchDirector
Grant/Award
46.3—398.7(D)

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Sep 26, 2026Sep 29 8:13 PMAlexandra R. KeithDirector
Grant/Award
46.3—1,377.65(D)

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Sep 26, 2026Sep 29 8:13 PMJennifer M JohnsonDirector
Grant/Award
46.3—768.52(D)

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Aug 31, 2026Sep 1 8:10 PMGianluca PettitiPresident & COO
Option Exercise
3,733$309.637,467(D)

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Aug 24, 2026Aug 26 8:01 PMMarc N CasperDirector, Chairman & CEO
Option Exercise
275$309.630(D)

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Aug 21, 2026Aug 24 8:02 PMMarc N CasperDirector, Chairman & CEO
Option Exercise
10,000$309.63275(D)

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Aug 20, 2026Aug 24 8:02 PMMarc N CasperDirector, Chairman & CEO
Option Exercise
10,000$309.6310,275(D)

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Aug 19, 2026Aug 20 8:02 PMLisa P. BrittSr. VP and Chief HR Officer
Option Exercise
11,440$418.320(D)

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Aug 11, 2026Aug 13 8:01 PMMichael D ShaferExecutive Vice President
Option Exercise
25,500$418.320(D)

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Aug 7, 2026Aug 10 8:09 PMJoseph R. HolmesVP & Chief Accounting Officer
Option Exercise
420$309.63140(D)

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Aug 7, 2026Aug 10 8:09 PMMarc N CasperDirector, Chairman & CEO
Option Exercise
275$309.6320,275(D)

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Aug 6, 2026Aug 7 9:32 PMLisa P. BrittSr. VP and Chief HR Officer
Option Exercise
5,850$309.630(D)

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Aug 6, 2026Aug 7 9:26 PMMarc N CasperDirector, Chairman & CEO
Option Exercise
10,000$309.6320,550(D)

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Aug 5, 2026Aug 7 9:26 PMMarc N CasperDirector, Chairman & CEO
Option Exercise
10,000$309.6330,550(D)

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Jun 27, 2026Jun 30 9:23 PMScott M SperlingDirector
Grant/Award
82.84—17,674.64(D)

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Jun 27, 2026Jun 30 9:20 PMAlexandra R. KeithDirector
Grant/Award
60.91—1,331.35(D)

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Jun 27, 2026Jun 30 9:19 PMDion J WeislerDirector
Grant/Award
73.1—2,790.99(D)

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Jun 27, 2026Jun 30 9:17 PMKaren S LynchDirector
Grant/Award
60.91—352.4(D)

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