Thermo Fisher COO sells 4,133 shares at $614.38

THERMO FISHER SCIENTIFIC INC.

Rhea-AI Filing Summary

THERMO FISHER SCIENTIFIC INC. (TMO) insider Gianluca Pettiti, President & COO, reported an option exercise and related share sales. On August 31, 2026, he exercised 3,733 stock options at an exercise price of $309.63 per share, increasing his option holdings to 7,467 options. He acquired 3,733 common shares from the exercise and sold a total of 4,133 common shares at $614.38 per share pursuant to a Rule 10b5-1 trading plan adopted on June 2, 2026. On August 28, 2026, a total of 1,034.692 shares of common stock were delivered or withheld at $622.18 per share for payment of exercise price or tax liability.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 8 txns

Insider Pettiti Gianluca

Role President & COO

Sold 4,133 shs ($2.54M)

Approx. gross sale proceeds $2.54M

Approx. exercise cost $1.16M

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy) F2	3,733	$0.00	$0.00
Sale	Common Stock F1	400	$614.38	$246K
Exercise	Common Stock	3,733	$309.63	$1.16M
Sale	Common Stock F1	3,733	$614.38	$2.29M
Exercise Price or Tax Liability	Common Stock	212.256	$622.18	$132K
Exercise Price or Tax Liability	Common Stock	303.639	$622.18	$189K
Exercise Price or Tax Liability	Common Stock	249.003	$622.18	$155K
Exercise Price or Tax Liability	Common Stock	269.794	$622.18	$168K

Holdings After Transaction: Stock Option (Right to Buy) — 7,467 contracts (Direct); Common Stock — 23,216.14 shares (Direct)

Footnotes (2)

1. F1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2026.
2. F2. The option vested in four equal installments on February 25, 2021, 2022, 2023 and 2024.

Key Figures

Options exercised: 3,733 shares Option exercise price: $309.63 per share Common shares sold: 4,133 shares +4 more

7 metrics

Options exercised 3,733 shares Stock options exercised on August 31, 2026

Option exercise price $309.63 per share Exercise price of stock options converted into common stock

Common shares sold 4,133 shares 400 + 3,733 common shares sold on August 31, 2026

Sale price $614.38 per share Price for common stock sales on August 31, 2026

Shares for exercise price or tax liability 1,034.692 shares Code F dispositions on August 28, 2026

Price for exercise price or tax liability dispositions $622.18 per share Value used for code F common stock dispositions on August 28, 2026

Options outstanding after exercise 7,467 options Stock Option (Right to Buy) position following the reported transaction

Key Terms

Rule 10b5-1 trading plan, Stock Option (Right to Buy), Exercise or conversion of derivative security, Payment of exercise price or tax liability by delivering or withholding securities

4 terms

Rule 10b5-1 trading plan regulatory

"transactions were effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

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

"transaction_code_description: Payment of exercise price or tax liability"

FAQ

What did TMO President & COO Gianluca Pettiti report in this Form 4?

He reported exercising 3,733 stock options at $309.63 per share, acquiring 3,733 common shares, and selling a total of 4,133 common shares at $614.38 per share, along with share dispositions to cover exercise price or tax liabilities.

How many Thermo Fisher (TMO) shares did Gianluca Pettiti sell?

He reported selling 400 common shares and an additional 3,733 common shares, for a total of 4,133 shares, at a price of $614.38 per share, in open market or private transactions under a Rule 10b5-1 trading plan.

What options did Gianluca Pettiti exercise in Thermo Fisher (TMO)?

He exercised 3,733 stock options with an exercise price of $309.63 per share, relating to common stock. After this transaction, 7,467 stock options remained outstanding from that grant, which vested in four equal installments from 2021 through 2024.

Were Gianluca Pettiti’s Thermo Fisher (TMO) share sales under a Rule 10b5-1 plan?

Yes. The filing states the reported sale transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by Gianluca Pettiti on June 2, 2026, indicating they followed a pre-arranged trading program.

How many Thermo Fisher (TMO) shares were used for tax or exercise payments?

On August 28, 2026, a total of 1,034.692 common shares were delivered or withheld at $622.18 per share, reported as payment of exercise price or tax liability associated with equity awards.

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

X

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^*

Pettiti Gianluca

(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)
	President & COO

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		212.256	D	$622.18	24,438.576	D
Common Stock	08/28/2026		F		303.639	D	$622.18	24,134.937	D
Common Stock	08/28/2026		F		249.003	D	$622.18	23,885.934	D
Common Stock	08/28/2026		F		269.794	D	$622.18	23,616.14	D
Common Stock	08/31/2026		S(1)		400	D	$614.38	23,216.14	D
Common Stock	08/31/2026		M		3,733	A	$309.63	26,949.14	D
Common Stock	08/31/2026		S(1)		3,733	D	$614.38	23,216.14	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)	$309.63	08/31/2026		M			3,733	(2)	02/25/2027	Common Stock	3,733	$0	7,467	D

Explanation of Responses:

1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2026.

2. The option vested in four equal installments on February 25, 2021, 2022, 2023 and 2024.

Remarks:

	/s/ Melodie T. Morin, Attorney-in-Fact for Gianluca Pettiti	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)