INTEGRYS ENERGY GROUP INC

CUSIP: 45822P105 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q1 2015
Shares 26,854 Value ($000) $1,934 Avg Close — Range —
Q4 2014
Shares 32,320 Value ($000) $2,516 Avg Close — Range —
Q3 2014
Shares 32,395 Value ($000) $2,100 Avg Close — Range —
Q2 2014
Shares 32,375 Value ($000) $2,303 Avg Close — Range —
Q1 2014
Shares 15,320 Value ($000) $914 Avg Close — Range —
Q4 2013
Shares 15,233 Value ($000) $829 Avg Close — Range —
Q3 2013
Shares 16,255 Value ($000) $908 Avg Close — Range —
Q2 2013
Shares 16,112 Value ($000) $943 Avg Close — Range —