IMPERVA INC

CUSIP: 45321L100 Class: COM

PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.'s Holding History (CIK: 0001166152)

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

Q4 2015
Shares 7,500 Value ($000) $475 Avg Close — Range —
Q3 2015
Shares 7,500 Value ($000) $491 Avg Close — Range —