QUIDEL CORP

CUSIP: 74838J101 Class: COMMON STOCK

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q3 2021
Shares 45,025 Value ($000) $6,355 Avg Close — Range —
Q2 2021
Shares 16,802 Value ($000) $2,152 Avg Close — Range —
Q4 2020
Shares 34,376 Value ($000) $6,176 Avg Close — Range —
Q3 2020
Shares 1,257 Value ($000) $276 Avg Close — Range —
Q1 2020
Shares 12,209 Value ($000) $1,194 Avg Close — Range —
Q4 2019
Shares 24,084 Value ($000) $1,807 Avg Close — Range —
Q3 2019
Shares 140,776 Value ($000) $8,637 Avg Close — Range —
Q2 2019
Shares 292,509 Value ($000) $17,351 Avg Close — Range —
Q1 2019
Shares 311,720 Value ($000) $20,408 Avg Close — Range —
Q4 2018
Shares 376,434 Value ($000) $18,378 Avg Close — Range —
Q4 2015
Shares 41,642 Value ($000) $883 Avg Close — Range —