IMPERVA INC

CUSIP: 45321L100 Class: COM

BlueCrest Capital Management Ltd's Holding History (CIK: 0001610880)

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

Q4 2018
Shares 18,400 Value ($000) $1,025 Avg Close — Range —
Q3 2018
Shares 7,113 Value ($000) $330 Avg Close — Range —
Q1 2018
Shares 8,697 Value ($000) $377 Avg Close — Range —
Q3 2016
Shares 9,600 Value ($000) $516 Avg Close — Range —
Q1 2016
Shares 6,239 Value ($000) $315 Avg Close — Range —
Q1 2015
Shares 7,001 Value ($000) $299 Avg Close — Range —