INTEGRYS ENERGY GROUP INC

CUSIP: 45822P105 Class: COM

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q1 2015
Shares 4,308 Value ($000) $310 Avg Close — Range —
Q3 2014
Shares 2,081 Value ($000) $135 Avg Close — Range —
Q2 2014
Shares 922 Value ($000) $66 Avg Close — Range —
Q1 2014
Shares 53 Value ($000) $3 Avg Close — Range —
Q4 2013
Shares 2,213 Value ($000) $121 Avg Close — Range —
Q3 2013
Shares 466 Value ($000) $26 Avg Close — Range —
Q2 2013
Shares 616 Value ($000) $36 Avg Close — Range —