Thermo Fisher HR chief withholds 394 shares at $622

THERMO FISHER SCIENTIFIC INC.

Rhea-AI Filing Summary

THERMO FISHER SCIENTIFIC INC. (TMO) reported that officer Lisa P. Britt, Sr. VP and Chief HR Officer, had four code F transactions on 2026-08-28, in which a total of 393.569 shares of common stock were delivered or withheld to pay the exercise price or tax liability at $622.18 per share.

Insider Trade Summary

Exercise Price or Tax Liability: 393.569 shares

Exercise Price or Tax Liability 4 txns

Insider Britt Lisa P.

Role Sr. VP and Chief HR Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	87.03	$622.18	$54K
Exercise Price or Tax Liability	Common Stock	116.04	$622.18	$72K
Exercise Price or Tax Liability	Common Stock	105.403	$622.18	$66K
Exercise Price or Tax Liability	Common Stock	85.096	$622.18	$53K

Holdings After Transaction: Common Stock — 14,390.579 shares (Direct)

Key Figures

Shares delivered/withheld (transaction 1): 87.0300 shares Shares delivered/withheld (transaction 2): 116.0400 shares Shares delivered/withheld (transaction 3): 105.4030 shares +3 more

6 metrics

Shares delivered/withheld (transaction 1) 87.0300 shares Code F disposition of Common Stock on 2026-08-28 at $622.1800 per share

Shares delivered/withheld (transaction 2) 116.0400 shares Code F disposition of Common Stock on 2026-08-28 at $622.1800 per share

Shares delivered/withheld (transaction 3) 105.4030 shares Code F disposition of Common Stock on 2026-08-28 at $622.1800 per share

Shares delivered/withheld (transaction 4) 85.0960 shares Code F disposition of Common Stock on 2026-08-28 at $622.1800 per share

Total shares for exercise price or tax liability 393.569 shares Sum of four code F exercise-price-or-tax-liability dispositions on 2026-08-28

Reported price per share $622.1800 per share Price field for all four Common Stock transactions on 2026-08-28

Key Terms

Form 4, exercise-price-or-tax-liability disposition, Payment of exercise price or tax liability by delivering or withholding securities

3 terms

Form 4 regulatory

"The Form 4 lists Lisa P. Britt as the reporting person"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

exercise-price-or-tax-liability disposition financial

"transaction_action: exercise-price-or-tax-liability disposition"

Payment of exercise price or tax liability by delivering or withholding securities financial

"transaction_code_description: Payment of exercise price or tax liability"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Who is the insider involved in the latest Form 4 for TMO?

The Form 4 lists Lisa P. Britt, who serves as Sr. VP and Chief HR Officer of Thermo Fisher Scientific Inc., as the reporting person for the disclosed common stock transactions.

What type of transactions did Lisa P. Britt report in this TMO Form 4?

All reported transactions are code F dispositions, described as payment of exercise price or tax liability by delivering or withholding securities, involving Thermo Fisher Scientific Inc. common stock.

How many TMO shares were delivered or withheld in total in this filing?

Across four transactions on 2026-08-28, a total of 393.569 shares of Thermo Fisher Scientific Inc. common stock were delivered or withheld to cover the exercise price or tax liability.

What price per share is reported for the TMO Form 4 transactions?

Each of the four reported transactions uses a price of $622.18 per share for Thermo Fisher Scientific Inc. common stock in connection with the exercise-price-or-tax-liability dispositions.

Were the TMO Form 4 transactions under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is unchecked (false), indicating the reported transactions were not affirmed as being made pursuant to a Rule 10b5-1 trading plan.

Does the Form 4 show Lisa P. Britt’s TMO share balance after these transactions?

For each reported transaction, the field for total shares following transaction is null, so this Form 4 does not state Lisa P. Britt’s post-transaction share holdings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/01/2026 - 04:11 PM EDT Accepted by SEC EDGAR 09/01/2026 - 04:10 PM EDT 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

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^*

Britt Lisa P.

(Last) (First) (Middle)

168 THIRD AVENUE

(Street)

WALTHAM MASSACHUSETTS 02451

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	Sr. VP and Chief HR Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/28/2026

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

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

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

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	08/28/2026		F		87.03	D	$622.18	14,697.118	D
Common Stock	08/28/2026		F		116.04	D	$622.18	14,581.078	D
Common Stock	08/28/2026		F		105.403	D	$622.18	14,475.675	D
Common Stock	08/28/2026		F		85.096	D	$622.18	14,390.579	D

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:

Remarks:

	/s/ Melodie T. Morin, Attorney-in-Fact for Lisa P. Britt	09/01/2026
	** 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.
* Form 4: SEC 1474 (03-26)