Lisa P. Britt - 19 Aug 2026 Form 4 Insider Report for THERMO FISHER SCIENTIFIC INC. (TMO)

Reporting relationship: Sr. VP and Chief HR Officer
Issuer ticker: TMO
Reported as of: 19 Aug 2026
Net transaction value: -$7,014,093
SEC form: 4
Accepted by SEC: 20 Aug 2026, 16:02:02 UTC
Prior SEC filing: 07 Aug 2026
Next SEC filing: 01 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ Melodie T. Morin, Attorney-in-Fact for Lisa P. Britt

Key filing fact

Lisa P. Britt filed Form 4 for THERMO FISHER SCIENTIFIC INC. (TMO) on 20 Aug 2026.

Key facts

This page summarizes Lisa P. Britt's Form 4 filing for THERMO FISHER SCIENTIFIC INC. (TMO).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 20 Aug 2026, 16:02.

Change

Previous filing in this sequence was filed on 07 Aug 2026.
Current net transaction value: -$7,014,093.

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 0001676320 Primary reporting owner

Britt Lisa P.

Relationship: Sr. VP and Chief HR Officer
Address: 168 THIRD AVENUE, WALTHAM
Signature: /s/ Melodie T. Morin, Attorney-in-Fact for Lisa P. Britt
Signature date: 20 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: +11,440
Change %: +77%
Price: $418.32^*
Shares after: 26,224
Date: 19 Aug 2026
Ownership: Direct

TMO transaction

Common Stock

Sale

Transaction value: $7,014,093
Shares: -11,440
Change %: -44%
Price: $613.12
Shares after: 14,784
Date: 19 Aug 2026
Ownership: Direct
Footnotes: F1

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: -11,440
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 19 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 11,440
Exercise price: $418.32

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $613.09 to $613.49, inclusive. The reporting person undertakes to provide to Thermo Fisher Scientific Inc. ("TMO"), any security holder of TMO or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.