3M Company

CUSIP: 88579y101 Class: COM

Chesley Taft & Associates LLC's Holding History (CIK: 0001164632)

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

Q2 2017
Shares 85,190 Value ($000) $17,736 Avg Close — Range —
Q1 2017
Shares 86,805 Value ($000) $16,608 Avg Close — Range —
Q4 2016
Shares 88,201 Value ($000) $15,750 Avg Close — Range —
Q3 2016
Shares 88,881 Value ($000) $15,663 Avg Close — Range —
Q2 2016
Shares 90,199 Value ($000) $15,796 Avg Close — Range —
Q1 2016
Shares 90,111 Value ($000) $15,015 Avg Close — Range —
Q4 2015
Shares 90,698 Value ($000) $13,663 Avg Close — Range —
Q3 2015
Shares 91,541 Value ($000) $12,978 Avg Close — Range —
Q2 2015
Shares 91,631 Value ($000) $14,139 Avg Close — Range —
Q1 2015
Shares 91,606 Value ($000) $15,110 Avg Close — Range —
Q4 2014
Shares 92,201 Value ($000) $15,150 Avg Close — Range —
Q3 2014
Shares 92,311 Value ($000) $13,079 Avg Close — Range —
Q2 2014
Shares 93,754 Value ($000) $13,429 Avg Close — Range —
Q1 2014
Shares 94,073 Value ($000) $12,762 Avg Close — Range —
Q4 2013
Shares 90,548 Value ($000) $12,699 Avg Close — Range —
Q3 2013
Shares 91,419 Value ($000) $10,916 Avg Close — Range —
Q2 2013
Shares 92,240 Value ($000) $10,086 Avg Close — Range —