3M CO

Ticker: MMM CUSIP: 88579Y101 Class: COM

Winthrop Partners - WNY, LLC's Holding History (CIK: 0001734109)

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

Q3 2019

Shares 4,136 Value ($000) $679,958 Avg Close $110.63 Range $102.36 - $123.65

Q2 2019

Shares 4,881 Value ($000) $846,072 Avg Close $120.63 Range $104.94 - $143.52

Q1 2019

Shares 5,108 Value ($000) $1,082,589 Avg Close $131.07 Range $118.62 - $138.19

Q4 2018

Shares 8,048 Value ($000) $1,533,465 Avg Close $128.25 Range $114.72 - $140.01

Q3 2018

Shares 8,198 Value ($000) $1,727,400 Avg Close $132.20 Range $121.95 - $140.35

Q2 2018

Shares 9,183 Value ($000) $1,806,479 Avg Close $130.14 Range $121.67 - $140.90

Q1 2018

Shares 9,301 Value ($000) $1,979,345 Avg Close $150.16 Range $136.48 - $164.13

Q4 2017

Shares 9,236 Value ($000) $2,229,108 Avg Close $144.97 Range $132.04 - $154.32

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	4,136	$679,958	$110.63	$102.36 - $123.65
Q2 2019	4,881	$846,072	$120.63	$104.94 - $143.52
Q1 2019	5,108	$1,082,589	$131.07	$118.62 - $138.19
Q4 2018	8,048	$1,533,465	$128.25	$114.72 - $140.01
Q3 2018	8,198	$1,727,400	$132.20	$121.95 - $140.35
Q2 2018	9,183	$1,806,479	$130.14	$121.67 - $140.90
Q1 2018	9,301	$1,979,345	$150.16	$136.48 - $164.13
Q4 2017	9,236	$2,229,108	$144.97	$132.04 - $154.32