ZOGENIX INC

CUSIP: 98978L105 Class: CMN

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q1 2015
Shares 86,800 Value ($000) $119 Avg Close — Range —
Q4 2014
Shares 89,800 Value ($000) $123 Avg Close — Range —
Q3 2014
Shares 112,500 Value ($000) $129 Avg Close — Range —
Q2 2014
Shares 112,500 Value ($000) $226 Avg Close — Range —
Q1 2014
Shares 61,908 Value ($000) $176 Avg Close — Range —
Q4 2013
Shares 808 Value ($000) $3 Avg Close — Range —
Q3 2013
Shares 8,608 Value ($000) $16 Avg Close — Range —
Q2 2013
Shares 14,099 Value ($000) $24 Avg Close — Range —