[Form 4] Thermo Fisher Scientific, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Gianluca Pettiti, listed as Executive Vice President of Thermo Fisher Scientific (TMO), reported multiple dispositions of Common Stock on 08/28/2025. Four separate line items show sales (transaction code F) totaling 814.702 shares at $489.74 per share, with post-transaction beneficial ownership reported as 21,552.223 to 22,167.238 shares across the entries. The Form 4 is signed by an attorney-in-fact on 09/02/2025. The filing provides name, address, role, transaction dates, codes, quantities, price, and resulting ownership figures.

Positive

• None.

Negative

• Insider disposals reported: Four sales totaling 814.702 shares at $489.74 per share on 08/28/2025 (transaction code F).
• Reduction in holdings: Post-transaction beneficial ownership figures are reported between 21,552.223 and 22,167.238 shares.

Insights

Financial Analyst

TL;DR: Insider sold 814.702 shares at $489.74 on 08/28/2025; post-sale holdings remain ~21.6K–22.2K shares.

The Form 4 documents four disposals by Executive Vice President Gianluca Pettiti using transaction code F on 08/28/2025. The aggregate disposed amount reported across the entries is 814.702 shares at $489.74 each. The filing shows the resulting beneficial ownership per line between 21,552.223 and 22,167.238 shares. This is a routine disclosure of insider selling activity; no derivative transactions or other material changes are reported.

Corporate Governance Expert

TL;DR: Proper Section 16 disclosure filed; sale reported via Form 4 and signed by attorney-in-fact.

The document identifies the reporting person, role (Executive Vice President), issuer (Thermo Fisher Scientific, TMO), and specifies transaction code F for four disposals on 08/28/2025. The form includes post-transaction beneficial ownership figures and a signature by an attorney-in-fact dated 09/02/2025, indicating procedural compliance with Section 16 reporting requirements. No amendments or additional context are provided.

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^*

Pettiti Gianluca

(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)
08/28/2025

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
Common Stock	08/28/2025		F		199.687	D	$489.74	22,167.238	D
Common Stock	08/28/2025		F		212.258	D	$489.74	21,954.98	D
Common Stock	08/28/2025		F		253.354	D	$489.74	21,701.626	D
Common Stock	08/28/2025		F		149.403	D	$489.74	21,552.223	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:

	/s/ Melodie T. Morin, Attorney-in-Fact for Gianluca Pettiti	09/02/2025
	** 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

Who filed the Form 4 for Thermo Fisher Scientific (TMO)?

The reporting person is Gianluca Pettiti, listed as Executive Vice President, with address provided in the filing.

What transactions are reported on this Form 4 for TMO?

Four dispositions (transaction code F) of Common Stock on 08/28/2025, totaling 814.702 shares at $489.74 per share.

What were Gianluca Pettiti's reported holdings after the transactions?

The filing shows post-transaction beneficial ownership amounts between 21,552.223 and 22,167.238 shares across the reported lines.

Was the Form 4 signed and when?

Yes. The form is signed by Melodie T. Morin, Attorney-in-Fact for Gianluca Pettiti dated 09/02/2025.

Does the filing report any derivative transactions?

No. Table II for derivative securities contains no entries in this filing.