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 | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $6,355,000 | +195.3% | 45,025 | +168.0% | 0.03% | +160.0% |
| Q2 2021 | $2,152,000 | -65.2% | 16,802 | -51.1% | 0.01% | -69.7% |
| Q4 2020 | $6,176,000 | +2137.7% | 34,376 | +2634.8% | 0.03% | +1550.0% |
| Q3 2020 | $276,000 | -76.9% | 1,257 | -89.7% | 0.00% | -83.3% |
| Q1 2020 | $1,194,000 | -33.9% | 12,209 | -49.3% | 0.01% | 0.0% |
| Q4 2019 | $1,807,000 | -79.1% | 24,084 | -82.9% | 0.01% | -82.4% |
| Q3 2019 | $8,637,000 | -50.2% | 140,776 | -51.9% | 0.07% | -52.4% |
| Q2 2019 | $17,351,000 | -57.5% | 292,509 | -53.1% | 0.14% | -25.9% |
| Q1 2019 | $40,816,000 | +122.1% | 623,440 | +65.6% | 0.19% | +2.7% |
| Q4 2018 | $18,378,000 | +1981.3% | 376,434 | +804.0% | 0.19% | +2250.0% |
| Q4 2015 | $883,000 | – | 41,642 | – | 0.01% | – |
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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% |