3M CO (MMM) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-07-22 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: 3M CO (MMM) CIK: 0000066740 --- Reporting Owner --- Name: Goralski Christian T JR CIK: 0001973503 Role: Officer (Group President) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-07-22 | Code: M (Exercise of derivative) Shares: +4,902 | Price: $154.69 Total Value: $758,290.38 Shares Owned After: 11,873.28 | Ownership: D (Direct) [Transaction #2] Security: Common Stock Date: 2026-07-22 | Code: S (Open market sale) Shares: -4,902 | Price: $170.46 Total Value: $835,577.27 Shares Owned After: 6,971.28 | Ownership: D (Direct) Footnotes: [F1] Includes shares acquired under 3M's General Employee Stock Purchase Plan. --- Derivative Transactions --- [Transaction #1] Security: Non-qualified Stock Option (Right to Buy) Date: 2026-07-22 | Code: M (Exercise of derivative) Shares: -4,902 | Price: $0.00 Exercisable: N/A | Expires: 2027-02-06 Shares Owned After: 0 | Ownership: D (Direct) --- Footnotes (Complete Index) --- F1: Includes shares acquired under 3M's General Employee Stock Purchase Plan. --- Signature --- /s/ /s/ Patricia L. Meagher, attorney-in-fact for Christian T. Goralski, Jr. (2026-07-23)