IMPERVA INC

CUSIP: 45321L100 Class: COM

TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY's Holding History (CIK: 0000714142)

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

Q1 2014
Shares 17,340 Value ($000) $966 Avg Close — Range —
Q4 2013
Shares 18,530 Value ($000) $892 Avg Close — Range —
Q3 2013
Shares 24,870 Value ($000) $1,045 Avg Close — Range —
Q2 2013
Shares 27,110 Value ($000) $1,221 Avg Close — Range —