3M CO

Ticker: MMM CUSIP: 88579Y101 Class: COM

Port Capital LLC's Holding History (CIK: 0001729212)

Note: Option positions (PUT/CALL) are excluded.

Q2 2019

Shares 3,865 Value ($000) $670 Avg Close $120.63 Range $104.94 - $143.52

Q1 2019

Shares 3,820 Value ($000) $794 Avg Close $131.07 Range $118.62 - $138.19

Q4 2018

Shares 4,739 Value ($000) $903 Avg Close $128.25 Range $114.72 - $140.01

Q3 2018

Shares 6,345 Value ($000) $1,337 Avg Close $132.20 Range $121.95 - $140.35

Q2 2018

Shares 6,362 Value ($000) $1,252 Avg Close $130.14 Range $121.67 - $140.90

Q1 2018

Shares 6,232 Value ($000) $1,368 Avg Close $150.16 Range $136.48 - $164.13

Q4 2017

Shares 6,332 Value ($000) $1,490 Avg Close $144.97 Range $132.04 - $154.32

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	3,865	$670	$120.63	$104.94 - $143.52
Q1 2019	3,820	$794	$131.07	$118.62 - $138.19
Q4 2018	4,739	$903	$128.25	$114.72 - $140.01
Q3 2018	6,345	$1,337	$132.20	$121.95 - $140.35
Q2 2018	6,362	$1,252	$130.14	$121.67 - $140.90
Q1 2018	6,232	$1,368	$150.16	$136.48 - $164.13
Q4 2017	6,332	$1,490	$144.97	$132.04 - $154.32