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 | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $912,802 | -6.2% | 6,762 | -1.9% | 0.01% | -14.3% |
| Q3 2021 | $973,229 | +4.2% | 6,895 | -5.5% | 0.01% | +7.7% |
| Q2 2021 | $934,379 | -20.6% | 7,293 | -20.8% | 0.01% | -27.8% |
| Q1 2021 | $1,177,468 | -26.7% | 9,204 | +2.9% | 0.02% | -25.0% |
| Q4 2020 | $1,606,430 | -19.9% | 8,942 | -2.2% | 0.02% | -31.4% |
| Q3 2020 | $2,005,133 | -6.5% | 9,140 | -4.6% | 0.04% | -7.9% |
| Q2 2020 | $2,144,324 | +102.7% | 9,584 | -11.4% | 0.04% | +72.7% |
| Q1 2020 | $1,057,815 | +23.8% | 10,815 | -5.0% | 0.02% | +57.1% |
| Q4 2019 | $854,592 | +18.4% | 11,390 | -3.2% | 0.01% | +16.7% |
| Q3 2019 | $721,967 | +12.4% | 11,768 | +8.7% | 0.01% | +9.1% |
| Q2 2019 | $642,436 | -9.4% | 10,830 | 0.0% | 0.01% | -15.4% |
| Q1 2019 | $709,040 | +34.1% | 10,830 | 0.0% | 0.01% | +18.2% |
| Q4 2018 | $528,721 | -24.1% | 10,830 | +1.3% | 0.01% | -8.3% |
| Q3 2018 | $696,407 | -99.9% | 10,686 | 0.0% | 0.01% | 0.0% |
| Q2 2018 | $710,619,000 | +48.8% | 10,686 | +15.9% | 0.01% | +71.4% |
| Q1 2018 | $477,688,000 | +119322.0% | 9,220 | 0.0% | 0.01% | +40.0% |
| Q4 2017 | $400,000 | -53.5% | 9,220 | -53.0% | 0.01% | 0.0% |
| Q3 2017 | $860,000 | +61.7% | 19,607 | 0.0% | 0.01% | +25.0% |
| Q2 2017 | $532,000 | +19.8% | 19,607 | 0.0% | 0.00% | +33.3% |
| Q1 2017 | $444,000 | -1.1% | 19,607 | -6.4% | 0.00% | 0.0% |
| Q4 2016 | $449,000 | -3.0% | 20,948 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $463,000 | +23.8% | 20,948 | 0.0% | 0.00% | 0.0% |
| Q2 2016 | $374,000 | +3.3% | 20,948 | 0.0% | 0.00% | 0.0% |
| Q1 2016 | $362,000 | -18.5% | 20,948 | 0.0% | 0.00% | 0.0% |
| Q4 2015 | $444,000 | +12.4% | 20,948 | 0.0% | 0.00% | 0.0% |
| Q3 2015 | $395,000 | -17.9% | 20,948 | 0.0% | 0.00% | 0.0% |
| Q2 2015 | $481,000 | -20.5% | 20,948 | -6.6% | 0.00% | -25.0% |
| Q1 2015 | $605,000 | -6.6% | 22,419 | 0.0% | 0.00% | 0.0% |
| Q4 2014 | $648,000 | +7.6% | 22,419 | 0.0% | 0.00% | 0.0% |
| Q3 2014 | $602,000 | +21.4% | 22,419 | 0.0% | 0.00% | +33.3% |
| Q2 2014 | $496,000 | -19.0% | 22,419 | 0.0% | 0.00% | -25.0% |
| Q1 2014 | $612,000 | -11.7% | 22,419 | 0.0% | 0.00% | -20.0% |
| Q4 2013 | $693,000 | +8.8% | 22,419 | 0.0% | 0.01% | 0.0% |
| Q3 2013 | $637,000 | +11.4% | 22,419 | 0.0% | 0.01% | 0.0% |
| Q2 2013 | $572,000 | – | 22,419 | – | 0.01% | – |
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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% |