Thermo Fisher (NYSE: TMO) HR chief reports new stock and option awards

Rhea-AI Filing Summary

Thermo Fisher Scientific senior vice president and chief HR officer Lisa P. Britt reported equity awards that increase her direct ownership in the company. She received a grant of stock options for 5,139 shares at an exercise price of $0.00 per option, along with grants of 872 and 1,173 shares of common stock.

The common stock relates to a performance-based restricted stock unit award originally granted on February 19, 2025, for which the compensation committee determined on February 25, 2026, that the performance criteria were satisfied. One-third of these shares vest on February 28, 2026 and 2027, with the remaining third vesting on February 28, 2028 subject to adjustment based on total shareholder return CAGR versus a peer group over the period from January 1, 2025 through December 31, 2027. The option award vests in four equal annual installments beginning on February 28, 2027.

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

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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 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)
	Sr. VP and Chief HR Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

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	02/25/2026		A		872(1)	A	$0	13,959.227	D
Common Stock	02/25/2026		A		1,173	A	$0	15,132.227	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
Stock Option (Right to Buy)	$513.68	02/25/2026		A		5,139		(2)	02/25/2036	Common Stock	5,139	$0	5,139	D

Explanation of Responses:

1. Shares represent a performance-based restricted stock unit award granted on February 19, 2025. The Company's Compensation Committee determined on February 25, 2026, that the performance criteria related to this award were satisfied. One-third of the shares vest on February 28, 2026 and 2027. The remaining one-third will vest on February 28, 2028, and is subject to adjustment (positive or negative) for long-term performance which is based on the comparison of the Company's total shareholder return compound annual growth rate ("CAGR") to the total shareholder return CAGR of each of the companies in the peer group, as specified within the award agreement, over the measurement period starting on January 1, 2025, through to December 31, 2027.

2. The option vests in four equal annual installments beginning on February 28, 2027.

	/s/ Melodie T. Morin, Attorney-in-Fact for Lisa P. Britt	02/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What did Thermo Fisher (TMO) executive Lisa P. Britt report in this Form 4?

Lisa P. Britt reported equity awards that increased her direct ownership in Thermo Fisher. She received 5,139 stock options at a zero exercise price and two common stock grants of 872 and 1,173 shares tied to prior performance-based awards and vesting schedules.

How many stock options did Lisa P. Britt acquire in Thermo Fisher (TMO)?

She acquired stock options covering 5,139 shares of Thermo Fisher common stock. These options were granted at an exercise price of $0.00 and vest in four equal annual installments starting February 28, 2027, providing staged potential future exercisability over several years.

What common stock awards were reported by Lisa P. Britt in Thermo Fisher (TMO)?

She reported two common stock acquisitions of 872 and 1,173 shares. These shares arise from a performance-based restricted stock unit award whose performance criteria were certified as achieved, and they vest in tranches from 2026 through 2028 under the award’s terms.

What performance conditions apply to Lisa P. Britt’s Thermo Fisher (TMO) RSU award?

The RSU award’s remaining one-third tranche vesting on February 28, 2028 is subject to adjustment. The adjustment depends on Thermo Fisher’s total shareholder return CAGR versus a specified peer group over the period from January 1, 2025 to December 31, 2027.

When do Lisa P. Britt’s Thermo Fisher (TMO) equity awards vest?

One-third of the performance-based RSU shares vest on February 28, 2026, and another third on February 28, 2027. The final third vests on February 28, 2028 subject to TSR-based adjustment, while the stock options vest in four equal annual installments starting February 28, 2027.

Does this Thermo Fisher (TMO) Form 4 show buying or selling on the open market?

The Form 4 reflects equity awards classified as grants or other acquisitions, not open-market buying or selling. All transactions are coded as award-related acquisitions, consistent with compensation arrangements and vesting of performance-based restricted stock units and stock options.