ZOGENIX INC

CUSIP: 98978L105 Class: CMN

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q2 2015
Shares 533,500 Value ($000) $896 Avg Close — Range —
Q1 2015
Shares 615,500 Value ($000) $843 Avg Close — Range —
Q4 2014
Shares 443,300 Value ($000) $607 Avg Close — Range —
Q3 2014
Shares 494,300 Value ($000) $568 Avg Close — Range —
Q2 2014
Shares 426,300 Value ($000) $856 Avg Close — Range —
Q1 2014
Shares 237,000 Value ($000) $674 Avg Close — Range —
Q4 2013
Shares 212,200 Value ($000) $729 Avg Close — Range —
Q3 2013
Shares 20,000 Value ($000) $37 Avg Close — Range —
Q2 2013
Shares 26,000 Value ($000) $44 Avg Close — Range —