ZOGENIX INC

CUSIP: 98978L105 Class: CMN

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q1 2015
Shares 23,368 Value ($000) $32 Avg Close — Range —
Q4 2013
Shares 111,999 Value ($000) $385 Avg Close — Range —