ZOGENIX INC

CUSIP: 98978L105 Class: CMN

GILDER GAGNON HOWE & CO LLC's Holding History (CIK: 0000902464)

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

Q3 2014
Shares 260,815 Value ($000) $300 Avg Close — Range —
Q2 2014
Shares 9,094,107 Value ($000) $18,279 Avg Close — Range —
Q1 2014
Shares 12,198,160 Value ($000) $34,704 Avg Close — Range —