IMPERVA INC

CUSIP: 45321L100 Class: COM

ProShare Advisors LLC's Holding History (CIK: 0001357955)

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

Q4 2018
Shares 3,724 Value ($000) $207 Avg Close — Range —
Q2 2018
Shares 4,590 Value ($000) $221 Avg Close — Range —
Q4 2017
Shares 5,055 Value ($000) $201 Avg Close — Range —
Q4 2015
Shares 3,864 Value ($000) $245 Avg Close — Range —
Q2 2015
Shares 3,350 Value ($000) $227 Avg Close — Range —
Q4 2014
Shares 4,747 Value ($000) $235 Avg Close — Range —
Q3 2014
Shares 8,781 Value ($000) $252 Avg Close — Range —
Q2 2014
Shares 10,775 Value ($000) $282 Avg Close — Range —
Q1 2014
Shares 20,435 Value ($000) $1,138 Avg Close — Range —
Q3 2013
Shares 12,755 Value ($000) $536 Avg Close — Range —
Q2 2013
Shares 6,733 Value ($000) $303 Avg Close — Range —