QUIDEL CORP

CUSIP: 74838J101 Class: COMMON STOCK

FIRST TRUST ADVISORS LP's Holding History (CIK: 0001125816)

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

Q1 2022
Shares 254,834 Value ($000) $28,659 Avg Close — Range —
Q4 2021
Shares 260,558 Value ($000) $35,173 Avg Close — Range —
Q3 2021
Shares 261,459 Value ($000) $36,905 Avg Close — Range —
Q2 2021
Shares 47,158 Value ($000) $6,042 Avg Close — Range —
Q1 2021
Shares 65,110 Value ($000) $8,330 Avg Close — Range —
Q4 2020
Shares 121,262 Value ($000) $21,785 Avg Close — Range —
Q3 2020
Shares 129,211 Value ($000) $28,346 Avg Close — Range —
Q2 2020
Shares 34,366 Value ($000) $7,689 Avg Close — Range —
Q1 2020
Shares 26,822 Value ($000) $2,623 Avg Close — Range —
Q4 2019
Shares 16,115 Value ($000) $1,209 Avg Close — Range —
Q3 2019
Shares 25,253 Value ($000) $1,549 Avg Close — Range —
Q2 2019
Shares 60,741 Value ($000) $3,603 Avg Close — Range —
Q1 2019
Shares 36,609 Value ($000) $2,397 Avg Close — Range —
Q4 2018
Shares 43,967 Value ($000) $2,146 Avg Close — Range —
Q3 2018
Shares 82,489 Value ($000) $5,376 Avg Close — Range —
Q2 2018
Shares 75,028 Value ($000) $4,989 Avg Close — Range —
Q1 2018
Shares 45,305 Value ($000) $2,347 Avg Close — Range —
Q4 2017
Shares 65,208 Value ($000) $2,827 Avg Close — Range —