QUIDEL CORP's ticker is QDEL and the CUSIP is 74838J101. A total of 354 filers reported holding QUIDEL CORP in Q1 2022. The put-call ratio across all filers is 1.18 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $554,000 | -57.9% | 4,929 | -49.4% | 0.01% | -52.6% |
| Q4 2021 | $1,316,000 | -5.4% | 9,748 | -1.1% | 0.02% | -9.5% |
| Q3 2021 | $1,391,000 | +7.8% | 9,856 | -2.1% | 0.02% | +10.5% |
| Q2 2021 | $1,290,000 | -51.2% | 10,072 | -51.2% | 0.02% | -53.7% |
| Q1 2021 | $2,642,000 | -29.7% | 20,651 | -1.3% | 0.04% | -33.9% |
| Q4 2020 | $3,760,000 | -16.4% | 20,928 | +2.1% | 0.06% | -25.3% |
| Q3 2020 | $4,496,000 | -22.6% | 20,493 | -21.0% | 0.08% | -26.5% |
| Q2 2020 | $5,807,000 | +216.3% | 25,955 | +38.2% | 0.11% | +156.8% |
| Q1 2020 | $1,836,000 | +170.0% | 18,774 | +107.3% | 0.04% | +266.7% |
| Q4 2019 | $680,000 | +18.7% | 9,057 | -3.0% | 0.01% | +9.1% |
| Q3 2019 | $573,000 | -7.1% | 9,334 | -10.3% | 0.01% | 0.0% |
| Q2 2019 | $617,000 | -11.9% | 10,401 | -2.7% | 0.01% | -8.3% |
| Q1 2019 | $700,000 | +32.6% | 10,694 | -1.1% | 0.01% | +9.1% |
| Q4 2018 | $528,000 | +37.1% | 10,809 | +82.9% | 0.01% | +83.3% |
| Q3 2018 | $385,000 | +1183.3% | 5,909 | +1193.0% | 0.01% | +500.0% |
| Q2 2018 | $30,000 | – | 457 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| ORACLE INVESTMENT MANAGEMENT INC | 1,795,462 | $393,889,000 | 51.91% |
| Birchview Capital, LP | 117,288 | $25,730,000 | 8.60% |
| Asymmetry Capital Management, L.P. | 39,314 | $8,625,000 | 5.54% |
| Trellus Management Company, LLC | 19,000 | $4,168,000 | 4.27% |
| Brown Capital Management | 2,305,481 | $505,776,000 | 4.19% |
| Trellus Management Company, LLC | 16,910 | $3,710,000 | 3.80% |
| Cannell & Co. | 460,146 | $100,947,000 | 3.71% |
| Soleus Capital Management, L.P. | 30,751 | $6,746,000 | 3.58% |
| GAGNON SECURITIES LLC | 57,725 | $12,664,000 | 2.70% |
| Parian Global Management LP | 30,800 | $6,757,000 | 2.14% |