QUIDEL CORP's ticker is QDEL and the CUSIP is 74838J101. A total of 317 filers reported holding QUIDEL CORP in Q3 2021. The put-call ratio across all filers is 0.85 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $436,000 | -61.7% | 20,484 | -37.1% | 0.02% | -52.1% |
| Q4 2021 | $1,139,000 | +1379.2% | 32,579 | +225.8% | 0.05% | +1100.0% |
| Q3 2021 | $77,000 | -75.9% | 10,000 | +41.4% | 0.00% | -71.4% |
| Q2 2021 | $320,000 | -44.7% | 7,071 | -74.2% | 0.01% | -51.7% |
| Q1 2021 | $579,000 | +38.2% | 27,357 | +399.0% | 0.03% | +45.0% |
| Q4 2020 | $419,000 | -40.9% | 5,482 | -49.4% | 0.02% | -53.5% |
| Q3 2020 | $709,000 | +1237.7% | 10,841 | +3513.7% | 0.04% | +975.0% |
| Q2 2020 | $53,000 | -81.1% | 300 | -93.8% | 0.00% | -71.4% |
| Q1 2020 | $281,000 | -4.4% | 4,860 | +24.0% | 0.01% | -22.2% |
| Q4 2019 | $294,000 | +583.7% | 3,920 | +335.6% | 0.02% | +350.0% |
| Q4 2018 | $43,000 | -41.9% | 900 | -47.3% | 0.00% | +33.3% |
| Q3 2017 | $74,000 | 0.0% | 1,708 | -58.0% | 0.00% | 0.0% |
| Q2 2017 | $74,000 | +1750.0% | 4,062 | +212.5% | 0.00% | – |
| Q1 2017 | $4,000 | -75.0% | 1,300 | -66.7% | 0.00% | -100.0% |
| Q4 2016 | $16,000 | -33.3% | 3,900 | +105.3% | 0.00% | 0.0% |
| Q3 2016 | $24,000 | +41.2% | 1,900 | +90.0% | 0.00% | 0.0% |
| Q2 2016 | $17,000 | -50.0% | 1,000 | -59.6% | 0.00% | -50.0% |
| Q1 2016 | $34,000 | – | 2,478 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| ORACLE INVESTMENT MANAGEMENT INC | 1,759,421 | $316,080,000 | 39.61% |
| Birchview Capital, LP | 58,644 | $10,535,000 | 6.07% |
| Trellus Management Company, LLC | 39,810 | $7,152,000 | 5.90% |
| MANA Advisors LLC | 1,364 | $245,000 | 4.53% |
| Cannell & Co. | 493,107 | $88,587,000 | 2.94% |
| Brown Capital Management | 2,282,444 | $410,041,000 | 2.83% |
| Trellus Management Company, LLC | 15,000 | $2,695,000 | 2.22% |
| GAGNON SECURITIES LLC | 58,936 | $10,588,000 | 1.69% |
| PREMIER ASSET MANAGEMENT LLC | 40,470 | $7,270,000 | 1.49% |
| Millrace Asset Group, Inc. | 11,926 | $2,143,000 | 1.49% |