ZOGENIX INC

CUSIP: 98978L105 Class: CMN

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q2 2015
Shares 4,186 Value ($000) $7 Avg Close — Range —
Q1 2015
Shares 5,586 Value ($000) $8 Avg Close — Range —
Q4 2014
Shares 196,734 Value ($000) $270 Avg Close — Range —
Q3 2014
Shares 16,313 Value ($000) $19 Avg Close — Range —
Q1 2014
Shares 54,990 Value ($000) $156 Avg Close — Range —
Q4 2013
Shares 75,579 Value ($000) $260 Avg Close — Range —