ZOGENIX INC

CUSIP: 98978L105 Class: CMN

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q2 2015
Shares 10,799 Value ($000) $18 Avg Close — Range —
Q1 2015
Shares 8,999 Value ($000) $12 Avg Close — Range —