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 | $337,000 | -51.7% | 2,997 | -42.0% | 0.01% | -44.0% |
| Q4 2021 | $698,000 | +31.9% | 5,170 | +25.2% | 0.02% | +108.3% |
| Q2 2021 | $529,000 | -47.4% | 4,130 | -47.4% | 0.01% | -50.0% |
| Q1 2021 | $1,005,000 | +75.4% | 7,854 | +146.1% | 0.02% | +100.0% |
| Q4 2020 | $573,000 | -60.3% | 3,192 | -51.5% | 0.01% | -62.5% |
| Q3 2020 | $1,444,000 | +120.5% | 6,584 | +124.9% | 0.03% | +128.6% |
| Q2 2020 | $655,000 | +42.1% | 2,927 | -58.5% | 0.01% | +27.3% |
| Q1 2019 | $461,000 | +34.0% | 7,045 | 0.0% | 0.01% | +37.5% |
| Q4 2018 | $344,000 | -6.5% | 7,045 | +24.8% | 0.01% | 0.0% |
| Q3 2018 | $368,000 | -1.9% | 5,645 | 0.0% | 0.01% | -11.1% |
| Q2 2018 | $375,000 | -76.7% | 5,645 | -81.9% | 0.01% | -76.9% |
| Q1 2018 | $1,612,000 | +19.5% | 31,111 | 0.0% | 0.04% | +25.8% |
| Q4 2017 | $1,349,000 | -23.9% | 31,111 | -23.0% | 0.03% | -22.5% |
| Q3 2017 | $1,773,000 | -3.1% | 40,423 | -40.0% | 0.04% | -2.4% |
| Q2 2017 | $1,829,000 | – | 67,377 | – | 0.04% | – |
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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% |