INTEGRYS ENERGY GROUP INC

CUSIP: 45822P105 Class: COM

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q1 2015
Shares 31,501 Value ($000) $2,265 Avg Close — Range —
Q4 2014
Shares 34,587 Value ($000) $2,690 Avg Close — Range —
Q3 2014
Shares 32,711 Value ($000) $2,123 Avg Close — Range —
Q2 2014
Shares 29,942 Value ($000) $2,125 Avg Close — Range —
Q1 2014
Shares 28,001 Value ($000) $1,665 Avg Close — Range —
Q4 2013
Shares 13,732 Value ($000) $749 Avg Close — Range —
Q3 2013
Shares 10,772 Value ($000) $601 Avg Close — Range —
Q2 2013
Shares 321 Value ($000) $18 Avg Close — Range —