ZOGENIX INC

CUSIP: 98978L105 Class: CMN

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q2 2015
Shares 280,099 Value ($000) $471 Avg Close — Range —
Q1 2015
Shares 226,674 Value ($000) $311 Avg Close — Range —
Q4 2014
Shares 226,674 Value ($000) $311 Avg Close — Range —
Q3 2014
Shares 225,705 Value ($000) $260 Avg Close — Range —
Q2 2014
Shares 224,318 Value ($000) $451 Avg Close — Range —
Q1 2014
Shares 178,318 Value ($000) $507 Avg Close — Range —
Q4 2013
Shares 178,318 Value ($000) $613 Avg Close — Range —
Q3 2013
Shares 128,918 Value ($000) $240 Avg Close — Range —
Q2 2013
Shares 124,946 Value ($000) $214 Avg Close — Range —
Q1 2013
Shares 94,618 Value ($000) $170 Avg Close — Range —