IMPERVA INC

CUSIP: 45321L100 Class: COM

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q3 2018
Shares 511,761 Value ($000) $23,771 Avg Close — Range —
Q2 2018
Shares 424,501 Value ($000) $20,482 Avg Close — Range —
Q1 2018
Shares 332,821 Value ($000) $14,411 Avg Close — Range —
Q4 2017
Shares 341,412 Value ($000) $13,554 Avg Close — Range —
Q3 2017
Shares 657,005 Value ($000) $28,514 Avg Close — Range —
Q2 2017
Shares 567,542 Value ($000) $27,157 Avg Close — Range —
Q1 2017
Shares 646,006 Value ($000) $26,519 Avg Close — Range —
Q4 2016
Shares 650,761 Value ($000) $24,989 Avg Close — Range —
Q3 2016
Shares 306,440 Value ($000) $16,459 Avg Close — Range —
Q2 2016
Shares 471,732 Value ($000) $20,289 Avg Close — Range —
Q1 2016
Shares 472,771 Value ($000) $23,875 Avg Close — Range —
Q4 2015
Shares 423,031 Value ($000) $26,782 Avg Close — Range —
Q3 2015
Shares 437,854 Value ($000) $28,671 Avg Close — Range —
Q2 2015
Shares 553,063 Value ($000) $37,442 Avg Close — Range —
Q1 2015
Shares 552,693 Value ($000) $26,214 Avg Close — Range —
Q4 2014
Shares 446,483 Value ($000) $22,070 Avg Close — Range —
Q3 2014
Shares 416,487 Value ($000) $11,966 Avg Close — Range —
Q2 2014
Shares 190,566 Value ($000) $4,989 Avg Close — Range —
Q1 2014
Shares 315,494 Value ($000) $17,573 Avg Close — Range —
Q4 2013
Shares 338,952 Value ($000) $16,314 Avg Close — Range —
Q3 2013
Shares 260,820 Value ($000) $10,960 Avg Close — Range —