Dickson Zoe L 4/A

What Happened
Zoe L. Dickson, Executive Vice President and Chief Human Resources Officer of 3M Co. (MMM), had 475.184 shares disposed to satisfy tax withholding related to a prior equity award (transaction code F). The shares were withheld at $0.00 per share (no cash proceeds reported). This filing is an amendment to update the previously estimated number of shares withheld with the actual amount.

Key Details

• Transaction date: 2026-02-02; Filing (amendment) date: 2026-02-18.
• Reported disposition: 475.184 shares withheld for taxes, price reported as $0.00, total proceeds $0.
• Shares owned after transaction: Not disclosed in the provided filing details.
• Footnote: The original Form 4 used an estimated number of shares withheld; this amendment updates the Form 4 with the actual number (F1).
• Filing type: Amended Form 4 to correct/update withholding information.

Context
Tax-withholding dispositions are routine following option exercises or restricted stock/RSU vesting and are not open-market sales — they do not generate cash proceeds for the insider and generally do not signal buying/selling sentiment. This amendment simply corrects the previously estimated withholding amount.