IMPERVA INC

CUSIP: 45321L100 Class: COM

Asset Management One Co., Ltd.'s Holding History (CIK: 0001068855)

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

Q4 2018
Shares 20,360 Value ($000) $1,133 Avg Close — Range —
Q3 2018
Shares 14,920 Value ($000) $693 Avg Close — Range —
Q2 2018
Shares 9,130 Value ($000) $441 Avg Close — Range —
Q1 2018
Shares 8,090 Value ($000) $350 Avg Close — Range —
Q4 2017
Shares 14,893 Value ($000) $592 Avg Close — Range —
Q3 2017
Shares 26,364 Value ($000) $1,145 Avg Close — Range —
Q2 2017
Shares 26,245 Value ($000) $1,258 Avg Close — Range —
Q1 2017
Shares 25,899 Value ($000) $1,061 Avg Close — Range —
Q4 2016
Shares 25,948 Value ($000) $984 Avg Close — Range —
Q3 2016
Shares 7,451 Value ($000) $394 Avg Close — Range —