X0306 4 2017-02-09 0000066740 3M CO MMM 0001263739 THULIN INGE G 3M CENTER ST. PAUL MN 55144-1000 1 1 Chairman, President & CEO Common Stock 2017-02-09 4 M 0 50792 77.18 A 249539 D Common Stock 2017-02-09 4 S 0 100 177.09 D 249439 D Common Stock 2017-02-09 4 S 0 92 177.10 D 249347 D Common Stock 2017-02-09 4 S 0 400 177.105 D 248947 D Common Stock 2017-02-09 4 S 0 200 177.11 D 248747 D Common Stock 2017-02-09 4 S 0 300 177.18 D 248447 D Common Stock 2017-02-09 4 S 0 200 177.19 D 248247 D Common Stock 2017-02-09 4 S 0 1000 177.21 D 247247 D Common Stock 2017-02-09 4 S 0 500 177.23 D 246747 D Common Stock 2017-02-09 4 S 0 400 177.24 D 246347 D Common Stock 2017-02-09 4 S 0 100 177.241 D 246247 D Common Stock 2017-02-09 4 S 0 100 177.251 D 246147 D Common Stock 2017-02-09 4 S 0 600 177.26 D 245547 D Common Stock 2017-02-09 4 S 0 577 177.27 D 244970 D Common Stock 2017-02-09 4 S 0 319 177.28 D 244651 D Common Stock 2017-02-09 4 S 0 565 177.29 D 244086 D Common Stock 2017-02-09 4 S 0 738 177.30 D 243348 D Common Stock 2017-02-09 4 S 0 1101 177.31 D 242247 D Common Stock 2017-02-09 4 S 0 280 177.311 D 241967 D Common Stock 2017-02-09 4 S 0 700 177.32 D 241267 D Common Stock 2017-02-09 4 S 0 601 177.33 D 240666 D Common Stock 2017-02-09 4 S 0 588 177.34 D 240078 D Common Stock 2017-02-09 4 S 0 200 177.345 D 239878 D Common Stock 2017-02-09 4 S 0 320 177.35 D 239558 D Common Stock 2017-02-09 4 S 0 100 177.351 D 239458 D Common Stock 2017-02-09 4 S 0 2200 177.365 D 237258 D Common Stock 2017-02-09 4 S 0 700 177.36 D 236558 D Common Stock 2017-02-09 4 S 0 1294 177.37 D 235264 D Common Stock 2017-02-09 4 S 0 405 177.38 D 234859 D 1 of 3 /s/ Sheila B. Claugherty, attorney-in-fact for Inge G. Thulin 2017-02-10