IMPERVA INC

CUSIP: 45321L100 Class: COM

TEACHER RETIREMENT SYSTEM OF TEXAS's Holding History (CIK: 0000796848)

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

Q2 2018
Shares 6,304 Value ($000) $304 Avg Close Range
Q1 2018
Shares 6,400 Value ($000) $277 Avg Close Range
Q4 2017
Shares 9,914 Value ($000) $394 Avg Close Range
Q2 2016
Shares 3,975 Value ($000) $171 Avg Close Range
Q1 2016
Shares 3,497 Value ($000) $177 Avg Close Range
Q4 2015
Shares 2,608 Value ($000) $165 Avg Close Range
Q3 2015
Shares 3,354 Value ($000) $220 Avg Close Range
Q2 2015
Shares 1,054 Value ($000) $71 Avg Close Range
Q1 2015
Shares 604 Value ($000) $26 Avg Close Range
Q4 2014
Shares 600 Value ($000) $30 Avg Close Range
Q3 2014
Shares 680 Value ($000) $20 Avg Close Range
Q2 2014
Shares 719 Value ($000) $19 Avg Close Range
Q1 2014
Shares 588 Value ($000) $33 Avg Close Range
Q4 2013
Shares 601 Value ($000) $29 Avg Close Range
Q3 2013
Shares 1,998 Value ($000) $84 Avg Close Range
Q2 2013
Shares 1,065 Value ($000) $48 Avg Close Range