QUIDEL CORP

CUSIP: 74838J101 Class: COMMON STOCK

VESTOR CAPITAL, LLC's Holding History (CIK: 0001132699)

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

Q4 2021
Shares 300 Value ($000) $40 Avg Close — Range —
Q3 2021
Shares 300 Value ($000) $42 Avg Close — Range —
Q4 2020
Shares 300 Value ($000) $54 Avg Close — Range —