What is the net share effect of Michael D. Shafer’s Thermo Fisher (TMO) transactions?

Across the reported trades, he exercised options into and acquired 25,500 shares, then sold 25,500 shares, for a net reported 25,500-share disposition according to the transaction summary’s net-sell share count.

Thermo Fisher Scientific (TMO) EVP exercises options, then sells 25,500 shares

Q: How many Thermo Fisher (TMO) shares did Michael D. Shafer sell and at what price?

He sold 25,500 shares of Thermo Fisher common stock at $600.00 per share on August 11, 2026 . These sales followed same-day option exercises and were made under a Rule 10b5-1 trading plan adopted on December 11, 2025.

Q: What option grants did Michael D. Shafer exercise in Thermo Fisher (TMO)?

He exercised options for 11,200 shares at a strike price of $309.63 and 14,300 shares at $418.32 . The options vested in four equal installments on February 25, 2021, 2022, 2023, and 2024 before being exercised.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Thermo Fisher Scientific Executive Vice President Michael D. Shafer reported option exercises and stock sales. On August 11, 2026, he exercised options for 25,500 shares of common stock at strike prices of $309.63 and $418.32 per share and acquired the same number of shares. He then sold 25,500 shares at $600.00 per share pursuant to a Rule 10b5-1 trading plan adopted on December 11, 2025. A footnote states his holdings include an additional 44.079 shares acquired under the employee stock purchase plan on May 15, 2026, and the options exercised had vested in four equal installments from February 25, 2021 through February 25, 2024.

Insider Trade Summary 10b5-1

Exercise and Sale: 25,500 shares ($5.85M approx. pre-tax spread)

Exercise and Sale 6 txns

Insider Shafer Michael D

Role Executive Vice President

Sold 25,500 shs ($15.30M)

Approx. gross sale proceeds $15.30M

Approx. exercise cost $9.45M

Approx. pre-tax spread $5.85M

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy) ^F3	11,200	$0.00	$0.00
Exercise	Stock Option (Right to Buy)	14,300	$0.00	$0.00
Exercise	Common Stock ^F1	11,200	$309.63	$3.47M
Sale	Common Stock ^F2	11,200	$600.00	$6.72M
Exercise	Common Stock	14,300	$418.32	$5.98M
Sale	Common Stock ^F2	14,300	$600.00	$8.58M

Holdings After Transaction: Stock Option (Right to Buy) — 0 shares (Direct); Common Stock — 20,994.0336 shares (Direct)

Footnotes (3)

F1. Includes 44.079 shares acquired under the Issuer's employee's stock purchase plan on May 15, 2026.
F2. 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.
F3. The options vested in four equal installments on February 25, 2021, 2022, 2023, and 2024.

Key Figures

Shares sold: 25,500 shares Sale price: $600.00 per share Option strike price 1: $309.63 per share +4 more

7 metrics

Shares sold 25,500 shares Common stock sales on August 11, 2026

Sale price $600.00 per share Price for 25,500 common shares sold on August 11, 2026

Option strike price 1 $309.63 per share Exercise price for 11,200 stock options

Option strike price 2 $418.32 per share Exercise price for 14,300 stock options

Options exercised 25,500 options Total stock options converted to common stock on August 11, 2026

Rule 10b5-1 plan adoption date December 11, 2025 Plan governing reported sales

ESPP shares 44.079 shares Shares acquired under employee stock purchase plan on May 15, 2026

Key Terms

Rule 10b5-1 trading plan, Stock Option (Right to Buy), exercise or conversion of derivative security, employee's stock purchase plan

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) with an exercise price"

exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

employee's stock purchase plan financial

"shares acquired under the Issuer's employee's stock purchase plan"

FAQ

What did Thermo Fisher (TMO) executive Michael D. Shafer report in this Form 4?

Michael D. Shafer reported option exercises and stock sales. He exercised options into 25,500 Thermo Fisher shares and sold 25,500 shares on August 11, 2026, all under a pre-arranged Rule 10b5-1 plan.

How many Thermo Fisher (TMO) shares did Michael D. Shafer sell and at what price?

He sold 25,500 shares of Thermo Fisher common stock at $600.00 per share on August 11, 2026. These sales followed same-day option exercises and were made under a Rule 10b5-1 trading plan adopted on December 11, 2025.

What option grants did Michael D. Shafer exercise in Thermo Fisher (TMO)?

He exercised options for 11,200 shares at a strike price of $309.63 and 14,300 shares at $418.32. The options vested in four equal installments on February 25, 2021, 2022, 2023, and 2024 before being exercised.

Were Michael D. Shafer’s Thermo Fisher (TMO) stock sales under a Rule 10b5-1 plan?

Yes. A footnote states the reported transactions were effected under a Rule 10b5-1 trading plan adopted by Michael D. Shafer on December 11, 2025. Such plans pre-schedule trades, reducing the significance of trade timing as an information signal.

Does the Thermo Fisher (TMO) Form 4 mention shares from an employee stock purchase plan?

Yes. A footnote explains that Shafer’s direct holdings include 44.079 additional shares acquired under Thermo Fisher’s employee stock purchase plan on May 15, 2026. This figure is part of his reported common stock ownership context.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/13/2026 - 04:02 PM Accepted by SEC EDGAR 08/13/2026 - 04:01 PM

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^*

Shafer Michael D

(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)
	Executive Vice President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/11/2026		M		11,200	A	$309.63	32,194.0336⁽¹⁾	D
Common Stock	08/11/2026		S⁽²⁾		11,200	D	$600	20,994.0336	D
Common Stock	08/11/2026		M		14,300	A	$418.32	35,294.0336	D
Common Stock	08/11/2026		S⁽²⁾		14,300	D	$600	20,994.0336	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)	$309.63	08/11/2026		M			11,200	⁽³⁾	02/25/2027	Common Stock	11,200	$0	0	D
Stock Option (Right to Buy)	$418.32	08/11/2026		M			14,300	03/09/2024	09/09/2027	Common Stock	14,300	$0	0	D

Explanation of Responses:

1. Includes 44.079 shares acquired under the Issuer's employee's stock purchase plan on May 15, 2026.

2. 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.

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

Remarks:

	/s/ Melodie T. Morin, Attorney-in-Fact for Michael D. Shafer	08/13/2026
	** 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)

Source: View Original Filing on SEC EDGAR