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 | $24,559,000 | +1.9% | 218,378 | +22.4% | 0.08% | +10.4% |
| Q4 2021 | $24,091,000 | +19.9% | 178,466 | +25.4% | 0.08% | +10.0% |
| Q3 2021 | $20,085,000 | +147.4% | 142,293 | +124.6% | 0.07% | +150.0% |
| Q2 2021 | $8,119,000 | +417.8% | 63,368 | +416.9% | 0.03% | +300.0% |
| Q1 2021 | $1,568,000 | +32.2% | 12,259 | +85.7% | 0.01% | +40.0% |
| Q4 2020 | $1,186,000 | -87.5% | 6,603 | -84.7% | 0.01% | -86.5% |
| Q3 2020 | $9,495,000 | -21.1% | 43,284 | -19.5% | 0.04% | -39.3% |
| Q2 2020 | $12,033,000 | +285.8% | 53,779 | +68.6% | 0.06% | +205.0% |
| Q1 2020 | $3,119,000 | -61.6% | 31,893 | -70.5% | 0.02% | -25.9% |
| Q4 2019 | $8,123,000 | +36.3% | 108,265 | +11.5% | 0.03% | +22.7% |
| Q3 2019 | $5,958,000 | -42.3% | 97,126 | -44.2% | 0.02% | -40.5% |
| Q2 2019 | $10,334,000 | +144.8% | 174,205 | +170.1% | 0.04% | +131.2% |
| Q1 2019 | $4,222,000 | -14.3% | 64,489 | -14.7% | 0.02% | -11.1% |
| Q3 2018 | $4,929,000 | +185.7% | 75,641 | +191.7% | 0.02% | +157.1% |
| Q2 2018 | $1,725,000 | – | 25,935 | – | 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% |