X0306 4 2021-10-29 0000066740 3M CO MMM 0001194945 WOERTZ PATRICIA A 77 WEST WACKER DRIVE SUITE 4600 CHICAGO IL 60601 1 Common Stock 2021-10-29 4 A 0 215.434 179.87 A 4693.124 I By Corporation Common Stock 2580 D This non-employee director has elected to defer all or a portion of compensation otherwise payable in cash or stock to a common stock equivalents account under the terms of 3M's Compensation Plan for Non-employee Directors and has no voting or investment powers with respect to such account. Includes acquisition of deferred dividend reinvestment shares pursuant to 3M's Compensation Plan for Non-Employee Directors. /s/ Patricia L. Meagher, attorney-in-fact for Patricia A. Woertz 2021-10-29