Stephen Williamson - 25 Feb 2026 Form 4 Insider Report for THERMO FISHER SCIENTIFIC INC. (TMO)

Role
Sr. VP and CFO
Signature
/s/ Melodie T. Morin, Attorney-in-Fact for Stephen Williamson
Issuer symbol
TMO
Transactions as of
25 Feb 2026
Net transactions value
$0
Form type
4
Filing time
27 Feb 2026, 17:13:37 UTC
Previous filing
06 Jan 2026
Next filing
02 Mar 2026
SEC
View on sec.gov

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Quoteable Key Fact

"Stephen Williamson filed Form 4 for THERMO FISHER SCIENTIFIC INC. (TMO) on 27 Feb 2026."

Quick Takeaways

  • This page summarizes Stephen Williamson's Form 4 filing for THERMO FISHER SCIENTIFIC INC. (TMO).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Filing timestamp: 27 Feb 2026, 17:13.

What Changed

  • Previous filing in this sequence was filed on 06 Jan 2026.
  • Current net transaction value: $0.

Why This Matters

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Official SEC Source

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

See Original Filing

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Williamson Stephen Sr. VP and CFO 168 THIRD AVENUE, WALTHAM /s/ Melodie T. Morin, Attorney-in-Fact for Stephen Williamson 27 Feb 2026 0001648929

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TMO Common Stock Award $0 +1,534 +4.8% $0.000000 33,421 25 Feb 2026 Direct F1
holding TMO Common Stock 12,674 25 Feb 2026 By SLAT F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares represent a performance-based restricted stock unit award granted on February 19, 2025. On February 25, 2026, the Compensation Committee certified achievement of the applicable performance criteria. The award vests in three equal tranches on February 28, 2026, 2027 and 2028, in accordance with the terms of the award agreement.
F2 The reporting person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein.

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