IMPERVA INC

CUSIP: 45321L100 Class: COM

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2018
Shares 5,446 Value ($000) $303 Avg Close — Range —
Q2 2018
Shares 4,210 Value ($000) $203 Avg Close — Range —
Q4 2017
Shares 5,294 Value ($000) $210 Avg Close — Range —
Q3 2017
Shares 5,975 Value ($000) $259 Avg Close — Range —
Q2 2017
Shares 7,114 Value ($000) $340 Avg Close — Range —
Q1 2017
Shares 6,583 Value ($000) $270 Avg Close — Range —
Q4 2016
Shares 5,985 Value ($000) $230 Avg Close — Range —
Q3 2016
Shares 6,420 Value ($000) $345 Avg Close — Range —
Q2 2016
Shares 6,489 Value ($000) $279 Avg Close — Range —
Q1 2016
Shares 6,586 Value ($000) $333 Avg Close — Range —
Q4 2015
Shares 6,845 Value ($000) $433 Avg Close — Range —
Q3 2015
Shares 6,563 Value ($000) $430 Avg Close — Range —
Q2 2015
Shares 6,573 Value ($000) $445 Avg Close — Range —
Q1 2015
Shares 6,316 Value ($000) $270 Avg Close — Range —
Q4 2014
Shares 6,457 Value ($000) $319 Avg Close — Range —