IMPERVA INC

CUSIP: 45321L100 Class: COM

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2018
Shares 3,488 Value ($000) $194 Avg Close — Range —
Q1 2018
Shares 764 Value ($000) $33 Avg Close — Range —
Q4 2017
Shares 897 Value ($000) $35 Avg Close — Range —
Q2 2017
Shares 4,089 Value ($000) $195 Avg Close — Range —
Q4 2016
Shares 11,623 Value ($000) $446 Avg Close — Range —
Q3 2016
Shares 17,018 Value ($000) $914 Avg Close — Range —
Q2 2016
Shares 22,780 Value ($000) $979 Avg Close — Range —
Q1 2016
Shares 3,985 Value ($000) $201 Avg Close — Range —