ZOGENIX INC

CUSIP: 98978L204 Class: COM NEW

Palo Alto Investors LP's Holding History (CIK: 0001306923)

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

Q4 2021
Shares 183,800 Value ($000) $2,987 Avg Close — Range —
Q3 2021
Shares 214,700 Value ($000) $3,261 Avg Close — Range —
Q2 2021
Shares 214,700 Value ($000) $3,710 Avg Close — Range —
Q1 2021
Shares 214,700 Value ($000) $4,191 Avg Close — Range —
Q4 2020
Shares 214,700 Value ($000) $4,292 Avg Close — Range —
Q3 2020
Shares 163,600 Value ($000) $2,933 Avg Close — Range —
Q2 2020
Shares 104,100 Value ($000) $2,812 Avg Close — Range —
Q1 2020
Shares 29,500 Value ($000) $730 Avg Close — Range —
Q4 2019
Shares 29,500 Value ($000) $1,538 Avg Close — Range —
Q3 2019
Shares 29,500 Value ($000) $1,181 Avg Close — Range —
Q2 2019
Shares 29,500 Value ($000) $1,410 Avg Close — Range —
Q1 2019
Shares 29,500 Value ($000) $1,623 Avg Close — Range —
Q4 2018
Shares 29,500 Value ($000) $1,076 Avg Close — Range —
Q3 2018
Shares 29,500 Value ($000) $1,463 Avg Close — Range —
Q2 2018
Shares 29,500 Value ($000) $1,304 Avg Close — Range —
Q1 2018
Shares 29,500 Value ($000) $1,181 Avg Close — Range —
Q4 2017
Shares 29,500 Value ($000) $1,181 Avg Close — Range —
Q3 2017
Shares 29,500 Value ($000) $1,034 Avg Close — Range —
Q2 2017
Shares 29,500 Value ($000) $428 Avg Close — Range —
Q1 2017
Shares 29,500 Value ($000) $320 Avg Close — Range —
Q4 2016
Shares 29,500 Value ($000) $358 Avg Close — Range —
Q3 2016
Shares 29,500 Value ($000) $337 Avg Close — Range —
Q2 2016
Shares 29,500 Value ($000) $237 Avg Close — Range —
Q1 2016
Shares 28,600 Value ($000) $264 Avg Close — Range —
Q4 2015
Shares 28,600 Value ($000) $422 Avg Close — Range —
Q3 2015
Shares 27,800 Value ($000) $375 Avg Close — Range —