Stephen Williamson - 28 Feb 2025 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: 28 Feb 2025
Net transactions value: -$854,981
Form type: 4
Filing time: 04 Mar 2025, 16:38:53 UTC
Previous filing: 21 Feb 2025
Next filing: 03 Apr 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TMO	Common Stock	Tax liability	$308,949	-584	-1.7%	$528.96	34,136	28 Feb 2025	Direct	F1
transaction	TMO	Common Stock	Tax liability	$546,032	-1,032	-3%	$528.96	33,103	28 Feb 2025	Direct
holding	TMO	Common Stock						12,674	28 Feb 2025	By SLAT	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reflects a downward adjustment of 518 shares of a performance-based restricted stock unit award granted on February 23, 2022. On February 22, 2023, the reporting person reported the acquisition of the performance-based restricted stock unit award. One-third of the shares vested on February 28, 2023, one-third of the shares vested on February 28, 2024, and the remaining one-third vested on February 28, 2025, subject to adjustment based on the Company's relative total shareholder return ("TSR") over the measurement period starting on January 1, 2022, through to December 31, 2024. As a result of the Company's relative TSR, the third tranche was adjusted downward by 30%. As such, the reporting person received 518 less shares than the amount initially reported.
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.

Content

Reflects a downward adjustment of 518 shares of a performance-based restricted stock unit award granted on February 23, 2022. On February 22, 2023, the reporting person reported the acquisition of the performance-based restricted stock unit award. One-third of the shares vested on February 28, 2023, one-third of the shares vested on February 28, 2024, and the remaining one-third vested on February 28, 2025, subject to adjustment based on the Company's relative total shareholder return ("TSR") over the measurement period starting on January 1, 2022, through to December 31, 2024. As a result of the Company's relative TSR, the third tranche was adjusted downward by 30%. As such, the reporting person received 518 less shares than the amount initially reported.

The reporting person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein.