IMPERVA INC

CUSIP: 45321L100 Class: COM

Zurcher Kantonalbank (Zurich Cantonalbank)'s Holding History (CIK: 0001368163)

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

Q4 2018
Shares 8,344 Value ($000) $465 Avg Close — Range —
Q3 2018
Shares 26,275 Value ($000) $1,220 Avg Close — Range —
Q2 2018
Shares 26,975 Value ($000) $1,302 Avg Close — Range —
Q1 2018
Shares 29,805 Value ($000) $1,291 Avg Close — Range —
Q4 2017
Shares 31,705 Value ($000) $1,259 Avg Close — Range —
Q3 2017
Shares 28,290 Value ($000) $1,228 Avg Close — Range —
Q2 2017
Shares 1,088 Value ($000) $52 Avg Close — Range —
Q1 2017
Shares 27,201 Value ($000) $1,117 Avg Close — Range —
Q4 2016
Shares 21,432 Value ($000) $823 Avg Close — Range —
Q3 2016
Shares 32,802 Value ($000) $1,762 Avg Close — Range —
Q2 2016
Shares 24,354 Value ($000) $1,047 Avg Close — Range —
Q1 2016
Shares 23,132 Value ($000) $1,168 Avg Close — Range —
Q4 2015
Shares 31,432 Value ($000) $1,990 Avg Close — Range —
Q3 2015
Shares 51,463 Value ($000) $3,370 Avg Close — Range —
Q2 2015
Shares 16,122 Value ($000) $1,091 Avg Close — Range —
Q1 2015
Shares 184 Value ($000) $8 Avg Close — Range —