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 | $9,117,000 | -64.3% | 81,068 | -59.4% | 0.04% | -68.1% |
| Q2 2021 | $25,570,000 | +102.0% | 199,578 | +101.7% | 0.11% | +98.2% |
| Q1 2021 | $12,656,000 | +457.8% | 98,931 | +683.2% | 0.06% | +470.0% |
| Q4 2020 | $2,269,000 | +86.4% | 12,631 | +127.7% | 0.01% | +66.7% |
| Q3 2020 | $1,217,000 | -25.7% | 5,548 | -24.3% | 0.01% | -25.0% |
| Q2 2020 | $1,639,000 | +146.5% | 7,325 | +7.7% | 0.01% | +100.0% |
| Q1 2020 | $665,000 | -4.7% | 6,803 | -40.2% | 0.00% | 0.0% |
| Q3 2019 | $698,000 | +3.4% | 11,375 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $675,000 | -9.4% | 11,375 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $745,000 | +44.4% | 11,375 | +7.6% | 0.00% | +33.3% |
| Q4 2018 | $516,000 | -25.0% | 10,575 | +0.1% | 0.00% | -25.0% |
| Q3 2018 | $688,000 | -2.0% | 10,560 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $702,000 | +27.6% | 10,560 | -0.6% | 0.00% | +33.3% |
| Q1 2018 | $550,000 | +19.6% | 10,620 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $460,000 | -12.7% | 10,620 | -45.3% | 0.00% | 0.0% |
| Q2 2017 | $527,000 | – | 19,420 | – | 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% |