Thermo Fisher (TMO) director reports 53.93 phantom stock units at $579.45

Rhea-AI Filing Summary

Thermo Fisher Scientific director reports deferred stock units grant

A Thermo Fisher Scientific Inc. director, R. Alexandra Keith, reported an acquisition of 53.93 phantom stock units on December 31, 2025 under the company’s Deferred Compensation Plan for Directors. These units are credited based on the closing stock price at quarter end, which was $579.45 per unit, and each unit is convertible into one share of common stock. Following this transaction, the director beneficially owns 1,204.42 phantom stock units, which will be distributed in stock after the director’s service ends or if there is a change of control.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Keith R. Alexandra

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock Units	53.93	$0.00	--

Holdings After Transaction: Phantom Stock Units — 1,204.42 shares (Direct)

Footnotes (1)

1. 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.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Keith R. Alexandra

(Last) (First) (Middle)

168 THIRD AVENUE

(Street)

WALTHAM MA 02451

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
THERMO FISHER SCIENTIFIC INC. [ TMO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/31/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Phantom Stock Units	(1)	12/31/2025		A		53.93		(2)	(2)	Common Stock	53.93	(2)	1,204.42	D

Explanation of Responses:

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

2. 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:

Exhibit List: Exhibit 24 - Power of Attorney

	/s/ Melodie T. Morin, Attorney-in-Fact for R. Alexandra Keith	01/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction did Thermo Fisher Scientific (TMO) report for the director?

The director reported acquiring 53.93 phantom stock units of Thermo Fisher Scientific Inc. on December 31, 2025 under the Deferred Compensation Plan for Directors.

How are the Thermo Fisher (TMO) director’s phantom stock units valued?

The 53.93 phantom stock units were credited at a price of $579.45 per unit, based on the closing price of Thermo Fisher Scientific common stock at the quarter end.

What is the conversion ratio for the Thermo Fisher (TMO) phantom stock units?

Each phantom stock unit held by the director is convertible into one share of common stock on a 1-for-1 basis.

When will the Thermo Fisher (TMO) director receive the shares from the phantom stock units?

The shares underlying the phantom stock units are distributable as stock upon cessation of the director’s service for any reason or upon a change of control of the company.

How many Thermo Fisher (TMO) phantom stock units does the director own after this transaction?

After the reported acquisition, the director beneficially owns 1,204.42 phantom stock units of Thermo Fisher Scientific Inc.

What plan governs the Thermo Fisher (TMO) director’s phantom stock units?

The phantom stock units are credited under Thermo Fisher Scientific’s Deferred Compensation Plan for Directors, where directors’ retainers are deferred quarterly as common stock units.