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 2021 | $2,635,000 | -30.1% | 20,601 | -1.8% | 0.56% | -30.5% |
| Q4 2020 | $3,770,000 | -43.4% | 20,983 | -30.9% | 0.81% | -30.4% |
| Q3 2020 | $6,657,000 | +36883.3% | 30,345 | +10015.0% | 1.16% | +29025.0% |
| Q3 2019 | $18,000 | 0.0% | 300 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $18,000 | -10.0% | 300 | 0.0% | 0.00% | -20.0% |
| Q1 2019 | $20,000 | +33.3% | 300 | 0.0% | 0.01% | +25.0% |
| Q4 2018 | $15,000 | -25.0% | 300 | 0.0% | 0.00% | -20.0% |
| Q3 2018 | $20,000 | 0.0% | 300 | 0.0% | 0.01% | 0.0% |
| Q2 2018 | $20,000 | +25.0% | 300 | 0.0% | 0.01% | +25.0% |
| Q1 2018 | $16,000 | +23.1% | 300 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $13,000 | 0.0% | 300 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $13,000 | +62.5% | 300 | 0.0% | 0.00% | +33.3% |
| Q2 2017 | $8,000 | +14.3% | 300 | 0.0% | 0.00% | +50.0% |
| Q1 2017 | $7,000 | +16.7% | 300 | 0.0% | 0.00% | 0.0% |
| Q4 2016 | $6,000 | -14.3% | 300 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $7,000 | +40.0% | 300 | 0.0% | 0.00% | 0.0% |
| Q2 2016 | $5,000 | 0.0% | 300 | 0.0% | 0.00% | 0.0% |
| Q1 2016 | $5,000 | -16.7% | 300 | 0.0% | 0.00% | 0.0% |
| Q4 2015 | $6,000 | 0.0% | 300 | 0.0% | 0.00% | 0.0% |
| Q3 2015 | $6,000 | -14.3% | 300 | 0.0% | 0.00% | -33.3% |
| Q2 2015 | $7,000 | -12.5% | 300 | 0.0% | 0.00% | 0.0% |
| Q1 2015 | $8,000 | -11.1% | 300 | 0.0% | 0.00% | 0.0% |
| Q4 2014 | $9,000 | +12.5% | 300 | 0.0% | 0.00% | 0.0% |
| Q3 2014 | $8,000 | +14.3% | 300 | 0.0% | 0.00% | 0.0% |
| Q2 2014 | $7,000 | -12.5% | 300 | 0.0% | 0.00% | -25.0% |
| Q1 2014 | $8,000 | -11.1% | 300 | 0.0% | 0.00% | 0.0% |
| Q4 2013 | $9,000 | 0.0% | 300 | 0.0% | 0.00% | 0.0% |
| Q3 2013 | $9,000 | +12.5% | 300 | 0.0% | 0.00% | 0.0% |
| Q2 2013 | $8,000 | – | 300 | – | 0.00% | – |
Download | ||||||
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% |