X0306 4 2018-01-31 0000066740 3M CO MMM 0001263739 THULIN INGE G 3M CENTER ST. PAUL MN 55144-1000 1 1 Chairman, President & CEO Common Stock 2018-01-31 4 S 0 10 251.94 D 199760.9578 D Common Stock 2018-01-31 4 S 0 210 251.95 D 199550.9578 D Common Stock 2018-01-31 4 S 0 300 251.96 D 199250.9578 D Common Stock 2018-01-31 4 S 0 19 251.97 D 199231.9578 D Common Stock 2018-01-31 4 S 0 10 251.98 D 199221.9578 D Common Stock 2018-01-31 4 S 0 287 252.00 D 198934.9578 D Common Stock 2018-01-31 4 S 0 217 252.01 D 198717.9578 D Common Stock 2018-01-31 4 S 0 10 252.02 D 198707.9578 D Common Stock 2018-01-31 4 S 0 24 252.03 D 198683.9578 D Common Stock 2018-01-31 4 S 0 1 252.04 D 198682.9578 D Common Stock 2018-01-31 4 S 0 222 252.06 D 198460.9578 D Common Stock 2018-01-31 4 S 0 179 252.08 D 198281.9578 D Common Stock 2018-01-31 4 S 0 31 252.09 D 198250.9578 D Common Stock 2018-01-31 4 S 0 410 252.10 D 197840.9578 D Common Stock 2018-01-31 4 S 0 810 252.11 D 197030.9578 D Common Stock 2018-01-31 4 S 0 429 252.12 D 196601.9578 D Common Stock 2018-01-31 4 S 0 210 252.13 D 196391.9578 D Common Stock 2018-01-31 4 S 0 102 252.14 D 196289.9578 D Common Stock 2018-01-31 4 S 0 10 252.16 D 196279.9578 D Common Stock 2018-01-31 4 S 0 201 252.17 D 196078.9578 D Common Stock 2018-01-31 4 S 0 10 252.18 D 196068.9578 D Common Stock 2018-01-31 4 S 0 110 252.19 D 195958.9578 D Common Stock 2018-01-31 4 S 0 1 252.20 D 195957.9578 D Common Stock 2018-01-31 4 S 0 298 252.21 D 195659.9578 D Common Stock 2018-01-31 4 S 0 300 252.23 D 195359.9578 D Common Stock 2018-01-31 4 S 0 600 252.24 D 194759.9578 D Common Stock 2018-01-31 4 S 0 220 252.25 D 194539.9578 D Common Stock 2018-01-31 4 S 0 200 252.26 D 194339.9578 D Common Stock 2018-01-31 4 S 0 7 252.27 D 194332.9578 D 3 of 4 /s/ Sheila B. Claugherty, attorney-in-fact for Inge G. Thulin 2018-02-01