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3M CO (NYSE: MMM) Sr VP & CAO sells 924 shares at $169.4201

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

3M CO Senior Vice President & CAO Theresa E. Reinseth reported an open-market sale of 924 shares of 3M common stock on July 23, 2026 at an average price of $169.4201 per share. After this sale she directly holds 2,615.1084 shares, including shares acquired under 3M's Dividend Reinvestment Plan, and indirectly holds 574 shares through a 401k/paesop trust. These transactions are not reported as being made under a Rule 10b5-1 trading plan.

Positive

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Negative

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Insider Reinseth Theresa E
Role Sr Vice President & CAO
Sold 924 shs ($157K)
Type Security Shares Price Value
Sale Common Stock F1 924 $169.4201 $157K
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 2,615.1084 shares (Direct); Common Stock — 574 shares (Indirect, By 401k/paesop Trust)
Footnotes (1)
  1. F1. Includes shares acquired pursuant to 3M's Dividend Reinvestment Plan.
Shares sold 924 shares Open-market or private sale of 3M common stock on July 23, 2026
Sale price per share $169.4201 Average price for the 924-share sale of 3M common stock
Direct holdings after sale 2,615.1084 shares Direct 3M common stock held by Theresa Reinseth after the reported sale
Indirect 401k/paesop holdings 574 shares Indirect 3M shares held through a 401k/paesop trust
Rule 10b5-1 trading plan regulatory
"Transactions are not reported under 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.
Dividend Reinvestment Plan financial
"Includes shares acquired pursuant to 3M's Dividend Reinvestment Plan"
A dividend reinvestment plan lets shareholders automatically use cash dividends to buy more shares of the same company instead of receiving the money. It matters to investors because it turns regular payouts into a steady way to grow ownership and take advantage of compound returns—like having your savings automatically buy additional slices of a pie over time—while often reducing transaction costs and smoothing purchase timing.
401k/paesop Trust financial
"Indirect ownership listed as By 401k/paesop Trust"

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

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FAQ

What insider transaction did 3M (MMM) report for Theresa Reinseth?
Theresa Reinseth reported selling 924 shares of 3M common stock on July 23, 2026 at an average price of $169.4201 per share. The transaction is coded as a sale in an open-market or private transaction of non-derivative common stock.

How many 3M (MMM) shares does Theresa Reinseth hold after the sale?
After the reported sale, Theresa Reinseth directly holds 2,615.1084 3M common shares and indirectly holds 574 shares through a 401k/paesop trust. The direct holdings figure includes shares acquired through 3M's Dividend Reinvestment Plan.

At what price were Theresa Reinseth's 3M (MMM) shares sold?
The reported sale by Theresa Reinseth was executed at an average price of $169.4201 per share for 924 shares of 3M common stock. This price reflects the per-share consideration for the non-derivative transaction on July 23, 2026.

Are Theresa Reinseth's 3M (MMM) transactions under a Rule 10b5-1 plan?
The filing indicates the transactions are not reported as being made under a Rule 10b5-1 trading plan. The document-level Rule 10b5-1 checkbox is not affirmed, and no footnotes describe these trades as pursuant to any pre-arranged trading arrangement.

What types of ownership are reported for Theresa Reinseth's 3M (MMM) shares?
Theresa Reinseth reports both direct and indirect ownership. She directly owns 2,615.1084 common shares, including Dividend Reinvestment Plan shares, and indirectly owns 574 shares held “By 401k/paesop Trust”, classified as indirect ownership.
SEC Form 4
FORM 4UNITED 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 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Sr Vice President & CAO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/23/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock07/23/2026S924D$169.42012,615.1084(1)D
Common Stock574IBy 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Includes shares acquired pursuant to 3M's Dividend Reinvestment Plan.
/s/ Patricia L. Meagher, attorney-in-fact for Theresa E. Reinseth07/24/2026
** Signature of Reporting PersonDate
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