Jennifer M. Johnson - 31 Dec 2025 Form 4 Insider Report for THERMO FISHER SCIENTIFIC INC. (TMO)

Role: Director
Signature: /s/ Melodie T. Morin, Attorney-in-Fact for Jennifer M. Johnson
Issuer symbol: TMO
Transactions as of: 31 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 05 Jan 2026, 17:03:58 UTC
Previous filing: 29 Dec 2025
Next filing: 12 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
JOHNSON JENNIFER M	Director	168 THIRD AVENUE, WALTHAM	/s/ Melodie T. Morin, Attorney-in-Fact for Jennifer M. Johnson	05 Jan 2026	0001010270

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		+54	+10%		595	31 Dec 2025	Common Stock	54		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 December 31, 2025, at a price of $579.45 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 December 31, 2025, at a price of $579.45 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.

Remarks:

1) Exhibit List: Exhibit 24 - Power of Attorney 2) Reporting Person is the President, Chief Executive Officer and a Director of Franklin Resources, Inc., a global investment management organization operating as Franklin Templeton?. Franklin Templeton subsidiaries manage investment products and client accounts that hold equity securities of the Issuer in the ordinary course of business. Reporting Person disclaims beneficial ownership of such securities.