Thermo Fisher EVP sells 1,607 TMO shares

Thermo Fisher Scientific Executive Vice President Michael D. Shafer sold 1,607 shares of common stock in an open-market transaction.

Accepted by SEC EDGAR 03/12/2026 - 04:23 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Thermo Fisher Scientific Executive Vice President Michael D. Shafer sold 1,607 shares of common stock in an open-market transaction. The sale occurred at a price of $499.40 per share, and followed a pre-arranged Rule 10b5-1 trading plan adopted on December 11, 2025.

After this transaction, Shafer directly holds 20,949.9546 Thermo Fisher Scientific shares. Because the trade was executed under a Rule 10b5-1 plan, its timing reflects a preset schedule rather than a discretionary market-timing decision.

Insider Trade Summary 10b5-1

Net Seller: 1,607 shares

Net Sell 1 txn

Insider Shafer Michael D

Role Executive Vice President

Sold 1,607 shs ($803K)

Share of Position Sold 7.1%

Type	Security	Shares	Price	Value
Sale	Common Stock	1,607	$499.40	$803K

Holdings After Transaction: Common Stock — 20,949.9546 shares (Direct)

Holdings Before and After: Common Stock, 22,556.9546 to 20,949.9546 shares (Direct)

Other Insiders: 2 other insiders reported open-market sales of this stock in the 30 days up to this filing.

Footnotes (1)

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 December 11, 2025.

FAQ

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

What insider transaction did Thermo Fisher Scientific (TMO) report for Michael D. Shafer?

Thermo Fisher Scientific reported that Executive Vice President Michael D. Shafer sold 1,607 common shares. The transaction was an open-market sale at $499.40 per share, executed on March 11, 2026 as disclosed in a Form 4 insider trading report.

Was Michael D. Shafer’s Thermo Fisher (TMO) share sale under a Rule 10b5-1 plan?

Yes, the sale was executed under a Rule 10b5-1 trading plan. The footnote states the plan was adopted on December 11, 2025, indicating the trade followed a pre-arranged schedule rather than a newly timed discretionary decision by the executive.

How many Thermo Fisher (TMO) shares does Michael D. Shafer hold after the reported sale?

After the sale, Michael D. Shafer directly holds 20,949.9546 shares of Thermo Fisher common stock. This figure, disclosed in the Form 4, shows his remaining direct ownership following the 1,607-share open-market disposition on March 11, 2026.

What price did Michael D. Shafer receive per share in his Thermo Fisher (TMO) stock sale?

Michael D. Shafer’s reported sale price was $499.40 per Thermo Fisher share. The Form 4 specifies this transaction price for the 1,607 common shares sold in an open-market transaction on March 11, 2026.

What role does Michael D. Shafer hold at Thermo Fisher Scientific (TMO)?

Michael D. Shafer serves as an Executive Vice President at Thermo Fisher Scientific. His position is identified in the insider trading disclosure, providing context for the reported sale of 1,607 shares of the company’s common stock.

Does the Thermo Fisher (TMO) Form 4 show any derivative transactions for Michael D. Shafer?

No derivative transactions are listed for Michael D. Shafer in this Form 4. The filing reports only a single non-derivative open-market sale of 1,607 shares, with no options exercises, conversions, or other derivative activity disclosed.

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

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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^*

Shafer Michael D

(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)
03/11/2026

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	03/11/2026		S(1)		1,607	D	$499.4	20,949.9546	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:

1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 11, 2025.

	/s/ Melodie T. Morin, Attorney-in-Fact for Michael D. Shafer	03/12/2026
	** 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.