IMPERVA INC

CUSIP: 45321L100 Class: COM

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

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

Q4 2018
Shares 46,683 Value ($000) $2,600 Avg Close Range
Q3 2018
Shares 31,523 Value ($000) $1,464 Avg Close Range
Q2 2018
Shares 33,741 Value ($000) $1,628 Avg Close Range
Q1 2018
Shares 31,663 Value ($000) $1,371 Avg Close Range
Q4 2017
Shares 32,688 Value ($000) $1,298 Avg Close Range
Q3 2017
Shares 38,671 Value ($000) $1,678 Avg Close Range
Q2 2017
Shares 37,916 Value ($000) $1,814 Avg Close Range
Q1 2017
Shares 34,529 Value ($000) $1,417 Avg Close Range
Q4 2016
Shares 34,168 Value ($000) $1,312 Avg Close Range
Q3 2016
Shares 30,879 Value ($000) $1,659 Avg Close Range
Q2 2016
Shares 29,728 Value ($000) $1,279 Avg Close Range
Q1 2016
Shares 27,916 Value ($000) $1,410 Avg Close Range
Q4 2015
Shares 27,111 Value ($000) $1,716 Avg Close Range
Q3 2015
Shares 24,231 Value ($000) $1,587 Avg Close Range
Q2 2015
Shares 23,147 Value ($000) $1,567 Avg Close Range
Q1 2015
Shares 20,307 Value ($000) $867 Avg Close Range
Q4 2014
Shares 17,312 Value ($000) $856 Avg Close Range
Q3 2014
Shares 17,862 Value ($000) $513 Avg Close Range
Q2 2014
Shares 17,952 Value ($000) $470 Avg Close Range
Q1 2014
Shares 17,393 Value ($000) $969 Avg Close Range
Q4 2013
Shares 18,563 Value ($000) $893 Avg Close Range
Q3 2013
Shares 18,753 Value ($000) $788 Avg Close Range
Q2 2013
Shares 18,774 Value ($000) $846 Avg Close Range