INTEGRYS ENERGY GROUP INC

CUSIP: 45822P105 Class: COM

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q1 2015
Shares 42,576 Value ($000) $3,066 Avg Close — Range —
Q4 2014
Shares 37,200 Value ($000) $2,896 Avg Close — Range —
Q3 2014
Shares 87,700 Value ($000) $5,685 Avg Close — Range —
Q2 2014
Shares 60,600 Value ($000) $4,310 Avg Close — Range —