X0508 4/A 2024-05-01 2024-05-03 0000066740 3M CO MMM 0001865140 Dickson Zoe L 3M CENTER ST. PAUL MN 55144 1 EVP & Chief HR Officer 0 Common Stock 2024-05-01 4 M 0 983 98.44 A 4504.2641 D Restricted Stock Units 2024-05-01 4 M 0 983 0 D Common Stock 983 984 D The original report reflected these shares as being withheld to satisfy tax withholdings in connection with the reported transaction. Tax withholdings were satisfied through other means and this amendment reflects shares actually received in connection with the reported transaction. Each restricted stock unit represents a contingent right to receive one share of 3M common stock. The final tranche of this restricted stock unit will vest on April 1, 2026. /s/ Patricia L. Meagher, attorney-in-fact for Zoe L. Dickson 2025-02-18