INTEGRYS ENERGY GROUP INC

CUSIP: 45822P105 Class: COM

PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO's Holding History (CIK: 0000315297)

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

Q1 2015
Shares 16,088 Value ($000) $1,159 Avg Close — Range —
Q4 2014
Shares 16,023 Value ($000) $1,247 Avg Close — Range —
Q3 2014
Shares 16,067 Value ($000) $1,041 Avg Close — Range —
Q2 2014
Shares 16,092 Value ($000) $1,145 Avg Close — Range —
Q1 2014
Shares 16,097 Value ($000) $960 Avg Close — Range —
Q4 2013
Shares 16,106 Value ($000) $876 Avg Close — Range —
Q3 2013
Shares 16,061 Value ($000) $898 Avg Close — Range —
Q2 2013
Shares 16,061 Value ($000) $940 Avg Close — Range —