QUIDEL CORP

CUSIP: 74838J101 Class: COMMON STOCK

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q1 2022
Shares 6,167,296 Value ($000) $693,574 Avg Close — Range —
Q4 2021
Shares 6,108,899 Value ($000) $824,640 Avg Close — Range —
Q3 2021
Shares 6,389,366 Value ($000) $901,859 Avg Close — Range —
Q2 2021
Shares 6,558,897 Value ($000) $840,326 Avg Close — Range —
Q1 2021
Shares 6,425,323 Value ($000) $821,992 Avg Close — Range —
Q4 2020
Shares 4,261,838 Value ($000) $765,639 Avg Close — Range —
Q3 2020
Shares 4,236,715 Value ($000) $929,451 Avg Close — Range —
Q2 2020
Shares 3,786,121 Value ($000) $847,107 Avg Close — Range —
Q1 2020
Shares 4,318,372 Value ($000) $422,380 Avg Close — Range —
Q4 2019
Shares 5,717,745 Value ($000) $429,002 Avg Close — Range —
Q3 2019
Shares 6,114,865 Value ($000) $375,147 Avg Close — Range —
Q2 2019
Shares 6,521,240 Value ($000) $386,840 Avg Close — Range —
Q1 2019
Shares 6,672,209 Value ($000) $436,830 Avg Close — Range —
Q4 2018
Shares 6,654,836 Value ($000) $324,889 Avg Close — Range —
Q3 2018
Shares 6,037,851 Value ($000) $393,487 Avg Close — Range —
Q2 2018
Shares 6,097,695 Value ($000) $405,497 Avg Close — Range —
Q1 2018
Shares 4,050,946 Value ($000) $209,880 Avg Close — Range —
Q4 2017
Shares 3,379,047 Value ($000) $146,482 Avg Close — Range —
Q3 2017
Shares 3,359,097 Value ($000) $147,330 Avg Close — Range —
Q2 2017
Shares 2,509,297 Value ($000) $68,102 Avg Close — Range —
Q1 2017
Shares 2,555,217 Value ($000) $57,850 Avg Close — Range —
Q4 2016
Shares 2,657,116 Value ($000) $56,915 Avg Close — Range —
Q3 2016
Shares 2,678,516 Value ($000) $59,168 Avg Close — Range —
Q2 2016
Shares 2,688,716 Value ($000) $48,020 Avg Close — Range —
Q1 2016
Shares 2,628,252 Value ($000) $45,364 Avg Close — Range —
Q4 2015
Shares 2,597,622 Value ($000) $55,070 Avg Close — Range —
Q3 2015
Shares 2,671,540 Value ($000) $50,439 Avg Close — Range —
Q2 2015
Shares 2,634,720 Value ($000) $60,467 Avg Close — Range —
Q1 2015
Shares 2,543,140 Value ($000) $68,614 Avg Close — Range —
Q4 2014
Shares 2,668,790 Value ($000) $77,181 Avg Close — Range —
Q3 2014
Shares 2,675,290 Value ($000) $71,885 Avg Close — Range —
Q2 2014
Shares 2,690,990 Value ($000) $59,498 Avg Close — Range —
Q1 2014
Shares 2,678,290 Value ($000) $73,117 Avg Close — Range —
Q4 2013
Shares 2,680,990 Value ($000) $82,816 Avg Close — Range —
Q3 2013
Shares 2,679,890 Value ($000) $76,109 Avg Close — Range —
Q2 2013
Shares 2,676,490 Value ($000) $68,331 Avg Close — Range —