QUIDEL CORP's ticker is QDEL and the CUSIP is 74838J101. A total of 352 filers reported holding QUIDEL CORP in Q1 2021. The put-call ratio across all filers is 1.24 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $1,000 | 0.0% | 10 | +150.0% | 0.00% | – |
| Q4 2021 | $1,000 | -93.8% | 4 | -96.4% | 0.00% | -100.0% |
| Q3 2021 | $16,000 | +23.1% | 111 | +3.7% | 0.00% | 0.0% |
| Q2 2021 | $13,000 | 0.0% | 107 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $13,000 | +225.0% | 107 | +328.0% | 0.00% | – |
| Q4 2020 | $4,000 | -75.0% | 25 | -67.5% | 0.00% | -100.0% |
| Q3 2020 | $16,000 | -27.3% | 77 | -23.8% | 0.00% | -50.0% |
| Q2 2020 | $22,000 | +57.1% | 101 | -31.8% | 0.00% | +100.0% |
| Q1 2020 | $14,000 | +55.6% | 148 | -58.0% | 0.00% | 0.0% |
| Q1 2014 | $9,000 | -10.0% | 352 | 0.0% | 0.00% | 0.0% |
| Q4 2013 | $10,000 | +11.1% | 352 | +16.6% | 0.00% | 0.0% |
| Q3 2013 | $9,000 | +28.6% | 302 | 0.0% | 0.00% | -75.0% |
| Q2 2013 | $7,000 | – | 302 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| ORACLE INVESTMENT MANAGEMENT INC | 906,655 | $127,974,000 | 15.93% |
| Birchview Capital, LP | 59,684 | $8,424,000 | 5.73% |
| Senvest Management, LLC | 864,827 | $122,070,000 | 3.49% |
| LGT CAPITAL PARTNERS LTD. | 773,146 | $109,130,000 | 3.29% |
| Brown Capital Management | 2,666,553 | $376,384,000 | 3.08% |
| INVESTMENT MANAGEMENT OF VIRGINIA LLC | 81,664 | $11,527,000 | 2.22% |
| GAGNON SECURITIES LLC | 100,625 | $14,203,000 | 2.11% |
| AMERICAN CAPITAL MANAGEMENT INC | 315,068 | $44,472,000 | 1.19% |
| ArrowMark Colorado Holdings LLC | 995,677 | $140,540,000 | 1.10% |
| Cannell & Co. | 246,487 | $34,792,000 | 1.06% |