Scott M. Sperling - Sep 27, 2025 Form 4 Insider Report for THERMO FISHER SCIENTIFIC INC. (TMO)

Role: Director
Signature: /s/ Melodie T. Morin, Attorney-in-Fact for Scott M. Sperling
Stock symbol: TMO
Transactions as of: Sep 27, 2025
Transactions value $: $0
Form type: 4
Date filed: 9/30/2025, 04:17 PM
Previous filing: Jul 1, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SPERLING SCOTT M	Director	C/O THOMAS H. LEE PARTNERS, L.P., 100 FEDERAL STREET, 36TH FLOOR, BOSTON	/s/ Melodie T. Morin, Attorney-in-Fact for Scott M. Sperling	2025-09-30	0001214212

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	TMO	Phantom Stock Units	Award		+91.6	+0.53%		17.4K	Sep 27, 2025	Common Stock	91.6		Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Convertible into Common Stock on a 1-for-1 basis.
F2	Represents stock units credited to the Reporting Person's account as of September 27, 2025, at a price of $464.24 per unit pursuant to the Issuer's Deferred Compensation Plan for Directors (the "Plan"). Directors' retainers are deferred quarterly under the Plan as Common Stock units based on the closing price of the stock as of the quarter end. The shares are distributable as stock upon cessation of director service (for any reason) or a change of control.

Content

Convertible into Common Stock on a 1-for-1 basis.

Represents stock units credited to the Reporting Person's account as of September 27, 2025, at a price of $464.24 per unit pursuant to the Issuer's Deferred Compensation Plan for Directors (the "Plan"). Directors' retainers are deferred quarterly under the Plan as Common Stock units based on the closing price of the stock as of the quarter end. The shares are distributable as stock upon cessation of director service (for any reason) or a change of control.