QUIDEL CORP's ticker is QDEL and the CUSIP is 74838J101. A total of 390 filers reported holding QUIDEL CORP in Q4 2020. The put-call ratio across all filers is 1.38 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $653,000 | -14.9% | 5,809 | +2.3% | 0.00% | -25.0% |
| Q4 2021 | $767,000 | +38.9% | 5,681 | +45.3% | 0.00% | +33.3% |
| Q3 2021 | $552,000 | +15.0% | 3,909 | +4.4% | 0.00% | 0.0% |
| Q2 2021 | $480,000 | -7.5% | 3,743 | -7.7% | 0.00% | 0.0% |
| Q1 2021 | $519,000 | -37.9% | 4,057 | -12.8% | 0.00% | -40.0% |
| Q4 2020 | $836,000 | -12.6% | 4,651 | +6.6% | 0.01% | -28.6% |
| Q3 2020 | $957,000 | -1.9% | 4,362 | 0.0% | 0.01% | -12.5% |
| Q2 2020 | $976,000 | +199.4% | 4,362 | +30.8% | 0.01% | +166.7% |
| Q1 2020 | $326,000 | +46.2% | 3,336 | +12.2% | 0.00% | +50.0% |
| Q4 2019 | $223,000 | +81.3% | 2,974 | +48.3% | 0.00% | +100.0% |
| Q3 2019 | $123,000 | +3.4% | 2,005 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $119,000 | -9.2% | 2,005 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $131,000 | +13.9% | 2,005 | -14.8% | 0.00% | 0.0% |
| Q4 2018 | $115,000 | -12.9% | 2,353 | +16.5% | 0.00% | 0.0% |
| Q3 2018 | $132,000 | -1.5% | 2,020 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $134,000 | +8.1% | 2,020 | -15.3% | 0.00% | 0.0% |
| Q1 2018 | $124,000 | +20.4% | 2,385 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $103,000 | +27.2% | 2,385 | +29.4% | 0.00% | 0.0% |
| Q3 2017 | $81,000 | +62.0% | 1,843 | 0.0% | 0.00% | – |
| Q2 2017 | $50,000 | +19.0% | 1,843 | 0.0% | 0.00% | – |
| Q1 2017 | $42,000 | +7.7% | 1,843 | 0.0% | 0.00% | – |
| Q4 2016 | $39,000 | -4.9% | 1,843 | 0.0% | 0.00% | – |
| Q3 2016 | $41,000 | +46.4% | 1,843 | +16.7% | 0.00% | – |
| Q2 2016 | $28,000 | +3.7% | 1,579 | 0.0% | 0.00% | – |
| Q1 2016 | $27,000 | -18.2% | 1,579 | 0.0% | 0.00% | – |
| Q4 2015 | $33,000 | +312.5% | 1,579 | +292.8% | 0.00% | – |
| Q3 2015 | $8,000 | +100.0% | 402 | +143.6% | 0.00% | – |
| Q2 2015 | $4,000 | 0.0% | 165 | 0.0% | 0.00% | – |
| Q1 2015 | $4,000 | – | 165 | – | 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% |