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[Form 4] 3M CO Insider Trading Activity

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

3M senior executive Theresa E. Reinseth reported option exercises and share sales. On February 11, 2026, she exercised 3,349 non-qualified stock options at $154.69 per share, receiving an equal number of 3M common shares. That same day, she sold multiple blocks of common stock in open-market transactions at prices ranging from about $172.72 to $172.79 per share. After these transactions, she directly owned 2,584.5834 3M shares and indirectly held 565 shares through a 401k/paesop trust, which includes shares acquired under 3M's Dividend Reinvestment Plan.

Positive

  • None.

Negative

  • None.
Insider Reinseth Theresa E
Role Sr Vice President & CAO
Sold 5,145 shs ($889K)
Type Security Shares Price Value
Exercise Non-qualified Stock Option (Right to Buy) 3,349 $0.00 --
Sale Common Stock 1,796 $172.7901 $310K
Exercise Common Stock 3,349 $154.69 $518K
Sale Common Stock 1,123 $172.72 $194K
Sale Common Stock 1,946 $172.73 $336K
Sale Common Stock 240 $172.74 $41K
Sale Common Stock 40 $172.75 $7K
holding Common Stock -- -- --
Holdings After Transaction: Non-qualified Stock Option (Right to Buy) — 0 shares (Direct); Common Stock — 2,584.583 shares (Direct); Common Stock — 565 shares (Indirect, By 401k/paesop Trust)
Footnotes (1)
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Form 4 Insider Transactions: What Each Field Means →
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*
Reinseth Theresa E
(Last) (First) (Middle)
3M CENTER
(Street)
ST. PAUL MN 55144
(City) (State) (Zip)
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)
Sr Vice President & CAO
3. Date of Earliest Transaction (Month/Day/Year)
02/11/2026
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 02/11/2026 S 1,796 D $172.7901 2,584.5834 D
Common Stock 02/11/2026 M 3,349 A $154.69 5,933.5834 D
Common Stock 02/11/2026 S 1,123 D $172.72 4,810.5834 D
Common Stock 02/11/2026 S 1,946 D $172.73 2,864.5834 D
Common Stock 02/11/2026 S 240 D $172.74 2,624.5834 D
Common Stock 02/11/2026 S 40 D $172.75 2,584.5834(1) D
Common Stock 565 I By 401k/paesop Trust
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
Non-qualified Stock Option (Right to Buy) $154.69 02/11/2026 M 3,349 02/07/2018 02/07/2027 Common Stock 3,349 $0 0 D
Explanation of Responses:
1. Includes shares acquired pursuant to 3M's Dividend Reinvestment Plan.
/s/ Patricia L. Meagher, attorney-in-fact for Theresa E. Reinseth 02/12/2026
** 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.

Source: View Original Filing on SEC EDGAR