3M CEO exercises RSUs, withholds shares for taxes

3M CO Chairman & CEO William M. Brown reported routine equity compensation activity involving company stock.

Rhea-AI Filing Summary

3M CO Chairman & CEO William M. Brown reported routine equity compensation activity involving company stock. He exercised restricted stock units covering 8,578 shares of 3M common stock and, in a related step, 3,912 of those shares were disposed of to cover tax obligations at a price of $142.50 per share. These tax-withholding dispositions are not open-market sales and do not reflect discretionary trading. Following the transactions, Brown directly holds 9,331 shares of 3M common stock, along with remaining restricted stock units that each represent a contingent right to receive one share of 3M common stock.

Insider Trade Summary

8,578 shares exercised/converted

Exercise 3 txns

Insider Brown William M

Role Chairman & CEO

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	8,578	$0.00	$0.00
Exercise	Common Stock	8,578	$142.50	$1.22M
Exercise Price or Tax Liability	Common Stock	3,912	$142.50	$557K

Holdings After Transaction: Restricted Stock Units — 8,579 contracts (Direct); Common Stock — 9,331 shares (Direct)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive one share of 3M common stock.
2. F2. The restricted stock units vest in three equal annual installments beginning on May 3, 2025.

Key Figures

RSUs exercised: 8,578 shares Tax-withholding shares: 3,912 shares Tax-withholding price: $142.50 per share +2 more

5 metrics

RSUs exercised 8,578 shares Restricted stock units converted to 3M common stock

Tax-withholding shares 3,912 shares Shares delivered to cover tax obligations

Tax-withholding price $142.50 per share Value used for tax-withholding disposition

Shares held after transaction 9,331 shares 3M common stock directly owned by CEO after Form 4

Remaining RSUs 8,579 units Restricted stock units outstanding after conversion event

Key Terms

restricted stock unit, tax-withholding disposition, derivative exercise/conversion, contingent right

4 terms

restricted stock unit financial

"Each restricted stock unit represents a contingent right to receive one share of 3M common stock."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

tax-withholding disposition financial

"Payment of exercise price or tax liability by delivering securities"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative exercise/conversion financial

"Exercise or conversion of derivative security"

contingent right financial

"Each restricted stock unit represents a contingent right to receive one share"

FAQ

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

What insider transactions did 3M (MMM) Chairman & CEO William M. Brown report?

William M. Brown exercised restricted stock units for 8,578 shares of 3M common stock and disposed of 3,912 shares to satisfy tax obligations. These events are part of routine equity compensation rather than open-market buying or selling activity.

Was the 3M (MMM) CEO’s Form 4 transaction an open-market sale of shares?

No. The Form 4 shows 3,912 shares disposed of as a tax-withholding transaction at $142.50 per share. This represents shares delivered to cover tax liabilities, not a discretionary open-market sale initiated by the CEO.

How many 3M (MMM) shares does CEO William M. Brown hold after this Form 4?

After these reported transactions, William M. Brown directly holds 9,331 shares of 3M common stock. This figure reflects his position following the exercise of restricted stock units and the related tax-withholding share disposition.

What do the restricted stock units in the 3M (MMM) Form 4 represent?

Each restricted stock unit represents a contingent right to receive one share of 3M common stock. The filing notes that these restricted stock units vest in three equal annual installments beginning on May 3, 2025, providing the CEO with scheduled future share delivery.

At what price were 3M (MMM) shares used for the CEO’s tax withholding?

Shares disposed of for tax withholding were valued at $142.50 per share. A total of 3,912 shares were used to satisfy tax obligations related to the equity award, according to the Form 4 transaction details.

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

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Accepted by SEC EDGAR 05/04/2026 - 04:06 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).

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^*

Brown William M

(Last) (First) (Middle)

3M CENTER

(Street)

ST. PAUL MINNESOTA 55144

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
3M CO [ MMM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026

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	05/01/2026		M		8,578	A	$142.5	13,243	D
Common Stock	05/01/2026		F		3,912	D	$142.5	9,331	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
Restricted Stock Units	(1)	05/01/2026		M			8,578	(2)	(2)	Common Stock	8,578	$0	8,579	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of 3M common stock.

2. The restricted stock units vest in three equal annual installments beginning on May 3, 2025.

	Patricia L. Meagher, attorney-in-fact for William M. Brown	05/04/2026
	** 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)