Michael D. Shafer - 11 Aug 2026 Form 4 Insider Report for THERMO FISHER SCIENTIFIC INC. (TMO)

Reporting relationship: Executive Vice President
Issuer ticker: TMO
Reported as of: 11 Aug 2026
Net transaction value: -$15,300,000
SEC form: 4
Accepted by SEC: 13 Aug 2026, 16:01:52 UTC
Prior SEC filing: 12 Mar 2026
Next SEC filing: 01 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ Melodie T. Morin, Attorney-in-Fact for Michael D. Shafer

Filing notes and source

Key filing fact

Michael D. Shafer filed Form 4 for THERMO FISHER SCIENTIFIC INC. (TMO) on 13 Aug 2026.

Key facts

This page summarizes Michael D. Shafer's Form 4 filing for THERMO FISHER SCIENTIFIC INC. (TMO).
6 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 13 Aug 2026, 16:01.

Change

Previous filing in this sequence was filed on 12 Mar 2026.
Current net transaction value: -$15,300,000.

Research use

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.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002020619 Primary reporting owner

Shafer Michael D

Relationship: Executive Vice President
Address: 168 THIRD AVENUE, WALTHAM
Signature: /s/ Melodie T. Morin, Attorney-in-Fact for Michael D. Shafer
Signature date: 13 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TMO transaction

Common Stock

Options Exercise

Transaction value
Shares: +11,200
Change %: +53%
Price: $309.63^*
Shares after: 32,194
Date: 11 Aug 2026
Ownership: Direct
Footnotes: F1

TMO transaction

Common Stock

Sale

Transaction value: $6,720,000
Shares: -11,200
Change %: -35%
Price: $600.00
Shares after: 20,994
Date: 11 Aug 2026
Ownership: Direct
Footnotes: F2

TMO transaction

Common Stock

Options Exercise

Transaction value
Shares: +14,300
Change %: +68%
Price: $418.32^*
Shares after: 35,294
Date: 11 Aug 2026
Ownership: Direct

TMO transaction

Common Stock

Sale

Transaction value: $8,580,000
Shares: -14,300
Change %: -41%
Price: $600.00
Shares after: 20,994
Date: 11 Aug 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

TMO transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -11,200
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 11 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 11,200
Exercise price: $309.63
Footnotes: F3

TMO transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -14,300
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 11 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 14,300
Exercise price: $418.32

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

Includes 44.079 shares acquired under the Issuer's employee's stock purchase plan on May 15, 2026.

Footnote F2

The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 11, 2025.

Footnote F3

The options vested in four equal installments on February 25, 2021, 2022, 2023, and 2024.