Thermo Fisher EVP reports tax-share dispositions

Thermo Fisher Scientific Executive Vice President Frederick M. Lowery reported several Form 4 transactions in common stock dated February 28, 2026.

Rhea-AI Filing Summary

Thermo Fisher Scientific Executive Vice President Frederick M. Lowery reported several Form 4 transactions in common stock dated February 28, 2026. He disposed of shares through tax-withholding transactions at $521.11 per share, a method used to cover tax liabilities on equity awards rather than open-market selling. Following these dispositions, he directly held 15,308.3954 shares of common stock. The filing also shows indirect holdings of common stock through a 401(k) plan and a limited liability company. A footnote states he acquired 0.037 shares under the 401(k) plan between February 26 and February 28, 2026, and that he disclaims beneficial ownership of indirectly held securities except for any pecuniary interest.

Insider Trade Summary

Exercise Price or Tax Liability: 896.968 shares

Exercise Price or Tax Liability 5 txns

Insider Lowery Frederick M.

Role Executive Vice President

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	111.281	$521.11	$58K
Exercise Price or Tax Liability	Common Stock	521.696	$521.11	$272K
Exercise Price or Tax Liability	Common Stock	263.991	$521.11	$138K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 15,044.4044 shares (Direct); Common Stock — 1,186.721 shares (Indirect, by 401K); Common Stock — 5.036 shares (Indirect, by Limited Liability Company)

Footnotes (2)

1. F1. Between February 26, 2026 and February 28, 2026, the reporting person acquired .037 shares of TMO common stock under the TMO 401(k) plan.
2. 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.

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Accepted by SEC EDGAR 03/02/2026 - 04:01 PM EST Learn about SEC filing dates

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

X

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^*

Lowery Frederick M.

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/28/2026

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
Common Stock	02/28/2026		F		111.281	D	$521.11	15,830.0914	D
Common Stock	02/28/2026		F		521.696	D	$521.11	15,308.3954	D
Common Stock	02/28/2026		F		263.991	D	$521.11	15,044.4044	D
Common Stock								1,186.721(1)	I	by 401K
Common Stock								5.036	I	by Limited Liability Company(2)

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

Explanation of Responses:

1. Between February 26, 2026 and February 28, 2026, the reporting person acquired .037 shares of TMO common stock under the TMO 401(k) plan.

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

	/s/ Melodie T. Morin, Attorney-in-Fact for Frederick M. Lowery	03/02/2026
	** 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.