ING U S INC

CUSIP: 45685E106 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q1 2014
Shares 136,260 Value ($000) $4,942 Avg Close — Range —
Q4 2013
Shares 135,760 Value ($000) $4,772 Avg Close — Range —
Q3 2013
Shares 134,860 Value ($000) $3,939 Avg Close — Range —
Q2 2013
Shares 130,643 Value ($000) $3,535 Avg Close — Range —