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 | $1,381,000 | +169.7% | 12,279 | +223.5% | 0.00% | – |
| Q4 2021 | $512,000 | -12.5% | 3,796 | -8.4% | 0.00% | – |
| Q3 2021 | $585,000 | -82.4% | 4,143 | -84.0% | 0.00% | -100.0% |
| Q2 2021 | $3,318,000 | -36.3% | 25,896 | -36.4% | 0.00% | -40.0% |
| Q1 2021 | $5,206,000 | +311.5% | 40,697 | +478.2% | 0.01% | +400.0% |
| Q4 2020 | $1,265,000 | +47.8% | 7,038 | +80.4% | 0.00% | 0.0% |
| Q3 2020 | $856,000 | -64.5% | 3,901 | -63.8% | 0.00% | -66.7% |
| Q2 2020 | $2,412,000 | +335.4% | 10,781 | +90.2% | 0.00% | +200.0% |
| Q1 2020 | $554,000 | +156.5% | 5,668 | +74.8% | 0.00% | – |
| Q2 2018 | $216,000 | – | 3,243 | – | 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% |