QUIDEL CORP

CUSIP: 74838J101 Class: COMMON STOCK

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q1 2022
Shares 317,543 Value ($000) $35,711 Avg Close — Range —
Q4 2021
Shares 297,509 Value ($000) $40,161 Avg Close — Range —
Q3 2021
Shares 294,192 Value ($000) $41,526 Avg Close — Range —
Q2 2021
Shares 210,592 Value ($000) $26,981 Avg Close — Range —
Q1 2021
Shares 206,103 Value ($000) $26,367 Avg Close — Range —
Q4 2020
Shares 191,171 Value ($000) $34,344 Avg Close — Range —
Q3 2020
Shares 187,221 Value ($000) $41,073 Avg Close — Range —
Q2 2020
Shares 188,521 Value ($000) $42,180 Avg Close — Range —
Q1 2020
Shares 232,767 Value ($000) $22,767 Avg Close — Range —
Q4 2019
Shares 227,933 Value ($000) $17,102 Avg Close — Range —
Q3 2019
Shares 221,710 Value ($000) $13,602 Avg Close — Range —
Q2 2019
Shares 237,301 Value ($000) $14,077 Avg Close — Range —
Q1 2019
Shares 238,444 Value ($000) $15,611 Avg Close — Range —
Q4 2018
Shares 248,429 Value ($000) $12,129 Avg Close — Range —
Q3 2018
Shares 246,663 Value ($000) $16,076 Avg Close — Range —
Q2 2018
Shares 168,788 Value ($000) $11,225 Avg Close — Range —
Q1 2018
Shares 193,461 Value ($000) $10,024 Avg Close — Range —
Q4 2017
Shares 192,647 Value ($000) $8,352 Avg Close — Range —
Q3 2017
Shares 181,804 Value ($000) $7,974 Avg Close — Range —
Q2 2017
Shares 174,788 Value ($000) $4,744 Avg Close — Range —
Q1 2017
Shares 120,582 Value ($000) $2,730 Avg Close — Range —
Q4 2016
Shares 114,102 Value ($000) $2,445 Avg Close — Range —
Q3 2016
Shares 108,163 Value ($000) $2,390 Avg Close — Range —
Q2 2016
Shares 103,229 Value ($000) $1,844 Avg Close — Range —
Q1 2016
Shares 101,447 Value ($000) $1,751 Avg Close — Range —
Q4 2015
Shares 99,410 Value ($000) $2,108 Avg Close — Range —
Q3 2015
Shares 89,408 Value ($000) $1,689 Avg Close — Range —
Q2 2015
Shares 83,594 Value ($000) $1,919 Avg Close — Range —
Q1 2015
Shares 80,981 Value ($000) $2,185 Avg Close — Range —
Q4 2014
Shares 77,108 Value ($000) $2,230 Avg Close — Range —
Q3 2014
Shares 74,366 Value ($000) $1,999 Avg Close — Range —
Q2 2014
Shares 76,584 Value ($000) $1,694 Avg Close — Range —
Q1 2014
Shares 76,894 Value ($000) $2,100 Avg Close — Range —
Q4 2013
Shares 74,617 Value ($000) $2,305 Avg Close — Range —
Q3 2013
Shares 71,668 Value ($000) $2,015 Avg Close — Range —
Q2 2013
Shares 68,076 Value ($000) $1,801 Avg Close — Range —