QUIDEL CORP's ticker is and the CUSIP is 74838J901. A total of 4 filers reported holding QUIDEL CORP in Q3 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $4,745,000 | +5.6% | 42,200 | +26.7% | 0.00% | -20.0% |
| Q4 2021 | $4,495,000 | +37.1% | 33,300 | +30.6% | 0.01% | +66.7% |
| Q3 2021 | $3,279,000 | +4.5% | 25,500 | +4.1% | 0.00% | 0.0% |
| Q2 2021 | $3,138,000 | +158.3% | 24,500 | +25689.5% | 0.00% | +50.0% |
| Q1 2021 | $1,215,000 | -74.9% | 95 | -64.8% | 0.00% | -66.7% |
| Q4 2020 | $4,850,000 | -30.9% | 270 | -15.6% | 0.01% | -40.0% |
| Q3 2020 | $7,020,000 | +56.1% | 320 | +59.2% | 0.01% | +42.9% |
| Q2 2020 | $4,497,000 | +1384.2% | 201 | +548.4% | 0.01% | +600.0% |
| Q1 2020 | $303,000 | +450.9% | 31 | +244.4% | 0.00% | – |
| Q3 2019 | $55,000 | +22.2% | 9 | +28.6% | 0.00% | – |
| Q1 2019 | $45,000 | -79.5% | 7 | -84.4% | 0.00% | -100.0% |
| Q4 2018 | $219,000 | +125.8% | 45 | +200.0% | 0.00% | – |
| Q3 2018 | $97,000 | -54.2% | 15 | -53.1% | 0.00% | -100.0% |
| Q2 2018 | $212,000 | – | 32 | +966.7% | 0.00% | – |
| Q1 2018 | $0 | -100.0% | 3 | -90.6% | 0.00% | -100.0% |
| Q4 2017 | $42,000 | +147.1% | 32 | +113.3% | 0.00% | +100.0% |
| Q3 2017 | $17,000 | +750.0% | 15 | +87.5% | 0.00% | – |
| Q2 2017 | $2,000 | +100.0% | 8 | -11.1% | 0.00% | – |
| Q1 2017 | $1,000 | 0.0% | 9 | 0.0% | 0.00% | – |
| Q4 2016 | $1,000 | – | 9 | +50.0% | 0.00% | – |
| Q3 2015 | $0 | -100.0% | 6 | -83.8% | 0.00% | – |
| Q2 2015 | $2,000 | – | 37 | +3600.0% | 0.00% | – |
| Q4 2014 | $0 | – | 1 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 30,600 | $4,319,000 | 0.01% |
| SIMPLEX TRADING, LLC | 25,500 | $3,279,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| WELLS FARGO & COMPANY/MN | 7,400 | $1,045,000 | 0.00% |