AIRGAS INC

CUSIP: 009363102 Class: COM

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q1 2016
Shares 22,421 Value ($000) $3,176 Avg Close — Range —
Q4 2015
Shares 22,221 Value ($000) $3,074 Avg Close — Range —
Q3 2015
Shares 24,321 Value ($000) $2,173 Avg Close — Range —
Q2 2015
Shares 26,321 Value ($000) $2,784 Avg Close — Range —
Q1 2015
Shares 26,121 Value ($000) $2,772 Avg Close — Range —
Q4 2014
Shares 27,721 Value ($000) $3,193 Avg Close — Range —
Q3 2014
Shares 27,521 Value ($000) $3,045 Avg Close — Range —
Q2 2014
Shares 27,421 Value ($000) $2,986 Avg Close — Range —
Q1 2014
Shares 27,121 Value ($000) $2,889 Avg Close — Range —
Q4 2013
Shares 27,021 Value ($000) $3,022 Avg Close — Range —
Q3 2013
Shares 26,921 Value ($000) $2,855 Avg Close — Range —
Q2 2013
Shares 26,721 Value ($000) $2,551 Avg Close — Range —