3M Company

CUSIP: 88579y101 Class: COM

GARDNER RUSSO & QUINN LLC's Holding History (CIK: 0000860643)

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

Q4 2017
Shares 1,500 Value ($000) $353 Avg Close — Range —
Q3 2017
Shares 1,525 Value ($000) $320 Avg Close — Range —
Q2 2017
Shares 1,525 Value ($000) $317 Avg Close — Range —
Q1 2017
Shares 1,525 Value ($000) $292 Avg Close — Range —
Q4 2016
Shares 1,525 Value ($000) $272 Avg Close — Range —
Q3 2016
Shares 1,525 Value ($000) $269 Avg Close — Range —
Q2 2016
Shares 1,525 Value ($000) $267 Avg Close — Range —
Q1 2016
Shares 1,425 Value ($000) $237 Avg Close — Range —
Q4 2015
Shares 1,600 Value ($000) $241 Avg Close — Range —
Q3 2015
Shares 1,600 Value ($000) $227 Avg Close — Range —