ZOGENIX INC

CUSIP: 98978L204 Class: COM NEW

Atika Capital Management LLC's Holding History (CIK: 0001599731)

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

Q4 2019
Shares 68,000 Value ($000) $3,545 Avg Close — Range —
Q3 2019
Shares 43,000 Value ($000) $1,722 Avg Close — Range —
Q2 2019
Shares 40,000 Value ($000) $1,911 Avg Close — Range —
Q1 2019
Shares 76,000 Value ($000) $4,181 Avg Close — Range —
Q4 2018
Shares 40,000 Value ($000) $1,458 Avg Close — Range —
Q3 2018
Shares 51,000 Value ($000) $2,530 Avg Close — Range —
Q2 2018
Shares 50,000 Value ($000) $2,210 Avg Close — Range —
Q1 2018
Shares 50,000 Value ($000) $2,002 Avg Close — Range —
Q4 2017
Shares 54,000 Value ($000) $2,162 Avg Close — Range —
Q3 2017
Shares 40,000 Value ($000) $1,402 Avg Close — Range —
Q2 2017
Shares 29,000 Value ($000) $420 Avg Close — Range —
Q1 2017
Shares 67,000 Value ($000) $727 Avg Close — Range —