INTEGRYS ENERGY GROUP INC

CUSIP: 45822P105 Class: COM

Municipal Employees' Retirement System of Michigan's Holding History (CIK: 0001588873)

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

Q1 2015
Shares 2,400 Value ($000) $173 Avg Close — Range —
Q4 2014
Shares 2,800 Value ($000) $218 Avg Close — Range —
Q3 2014
Shares 2,800 Value ($000) $181 Avg Close — Range —
Q2 2014
Shares 2,700 Value ($000) $192 Avg Close — Range —
Q1 2014
Shares 2,700 Value ($000) $161 Avg Close — Range —
Q4 2013
Shares 2,600 Value ($000) $141 Avg Close — Range —
Q3 2013
Shares 2,600 Value ($000) $145 Avg Close — Range —