ZOGENIX INC

CUSIP: 98978L105 Class: CMN

BRIDGEWAY CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001107261)

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

Q2 2015
Shares 597,130 Value ($000) $1,003 Avg Close — Range —
Q1 2015
Shares 522,130 Value ($000) $715 Avg Close — Range —
Q4 2014
Shares 421,700 Value ($000) $578 Avg Close — Range —
Q3 2014
Shares 421,700 Value ($000) $485 Avg Close — Range —
Q2 2014
Shares 154,900 Value ($000) $311 Avg Close — Range —
Q1 2014
Shares 157,100 Value ($000) $447 Avg Close — Range —
Q4 2013
Shares 328,400 Value ($000) $1,130 Avg Close — Range —
Q3 2013
Shares 328,400 Value ($000) $608 Avg Close — Range —
Q2 2013
Shares 256,200 Value ($000) $438 Avg Close — Range —