ZOGENIX INC

CUSIP: 98978L105 Class: CMN

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

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

Q1 2015
Shares 66,270 Value ($000) $91 Avg Close — Range —
Q4 2014
Shares 84,670 Value ($000) $116 Avg Close — Range —
Q3 2014
Shares 294,500 Value ($000) $339 Avg Close — Range —
Q2 2014
Shares 21,700 Value ($000) $44 Avg Close — Range —
Q1 2014
Shares 24,304 Value ($000) $69 Avg Close — Range —
Q4 2013
Shares 45,104 Value ($000) $155 Avg Close — Range —