IMPAX LABORATORIES INC

CUSIP: 45256B101 Class: CMN

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q2 2016
Shares 8,729 Value ($000) $252 Avg Close — Range —
Q1 2016
Shares 56,090 Value ($000) $1,796 Avg Close — Range —
Q4 2015
Shares 76,624 Value ($000) $3,276 Avg Close — Range —
Q1 2015
Shares 6,270 Value ($000) $294 Avg Close — Range —
Q2 2014
Shares 242,396 Value ($000) $7,269 Avg Close — Range —