MMM Form 144: Upcoming 6,165-share insider sale flagged

Rhea-AI Filing Summary

3M Company (MMM) has filed a Form 144 signalling a planned insider sale of common stock.

• The insider intends to sell 6,165 shares through Fidelity Brokerage Services on or after 08-07-2025.
• Based on the filing, the aggregate market value is $925,860.32, or roughly $150.2 per share.
• The stake equates to just 0.0012% of the 532.63 million shares outstanding, indicating an immaterial dilution effect.
• The shares originated from an employee stock option granted on 02-02-2016 and will be paid for in cash.
• No additional sales by the filer occurred during the past three months, and the signer affirms no undisclosed adverse information.

The filing is routine, provides transparency on a modest insider disposition, and is unlikely to affect 3M’s share price or capital structure materially.

Insights

Securities Analyst

TL;DR: Small insider sale (0.0012% float); routine option exercise, negligible valuation impact.

The proposed disposition of 6,165 shares—worth about $0.93 million—is insignificant relative to 3M’s >$50 billion market cap. Option-related sales are common and do not necessarily indicate negative sentiment. With no other recent sales disclosed and a cash payment, the transaction is standard housekeeping. I view the filing as informational only, with limited liquidity or sentiment implications.

Corporate Governance Expert

TL;DR: Filing enhances transparency; governance impact minimal.

Form 144 compliance shows the insider is following SEC rules, reducing regulatory risk. Because the percentage sold is de minimis, there is no control shift or governance concern. The absence of undisclosed adverse information certification helps mitigate insider-information worries. Overall, the event is non-impactful for governance metrics.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	6165	925860.32	532629702	08/07/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/07/2025	Option Granted - 02/02/2016	Issuer			6165	08/07/2025	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

How many 3M (MMM) shares are being sold under this Form 144?

The filing covers 6,165 common shares.

What is the estimated market value of the planned 3M insider sale?

The aggregate value stated is $925,860.32.

When is the earliest sale date for the MMM shares?

The approximate sale date disclosed is 08-07-2025.

What percentage of 3M’s shares outstanding does this sale represent?

Roughly 0.0012% of the 532.63 million shares outstanding.

Were there any other insider sales by this filer in the past three months?

No. The filer reported "Nothing to Report" for the prior three-month period.

How were the shares acquired by the insider?

They were obtained via an employee stock option granted on 02-02-2016, paid for in cash.