INTEGRYS ENERGY GROUP INC

CUSIP: 45822P105 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q1 2015
Shares 1,180,498 Value ($000) $85,019 Avg Close — Range —
Q4 2014
Shares 1,223,186 Value ($000) $95,225 Avg Close — Range —
Q3 2014
Shares 1,096,679 Value ($000) $71,087 Avg Close — Range —
Q2 2014
Shares 1,135,816 Value ($000) $80,791 Avg Close — Range —
Q1 2014
Shares 1,086,105 Value ($000) $64,786 Avg Close — Range —
Q4 2013
Shares 1,117,177 Value ($000) $60,785 Avg Close — Range —
Q3 2013
Shares 1,130,963 Value ($000) $63,209 Avg Close — Range —
Q2 2013
Shares 1,181,280 Value ($000) $69,141 Avg Close — Range —