QUIDEL CORP's ticker is QDEL and the CUSIP is 74838J101. A total of 159 filers reported holding QUIDEL CORP in Q4 2018. The put-call ratio across all filers is 0.22 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $7,000 | -12.5% | 65 | +14.0% | 0.00% | – |
| Q4 2021 | $8,000 | +166.7% | 57 | +147.8% | 0.00% | – |
| Q3 2021 | $3,000 | 0.0% | 23 | 0.0% | 0.00% | – |
| Q2 2021 | $3,000 | 0.0% | 23 | 0.0% | 0.00% | – |
| Q1 2021 | $3,000 | -85.7% | 23 | -80.2% | 0.00% | – |
| Q4 2020 | $21,000 | -16.0% | 116 | 0.0% | 0.00% | – |
| Q3 2020 | $25,000 | -99.5% | 116 | -99.5% | 0.00% | -100.0% |
| Q2 2020 | $5,060,000 | +128.8% | 22,616 | 0.0% | 0.02% | +77.8% |
| Q1 2020 | $2,212,000 | +332.0% | 22,616 | +231.3% | 0.01% | +350.0% |
| Q4 2019 | $512,000 | -7.6% | 6,827 | -24.4% | 0.00% | 0.0% |
| Q3 2019 | $554,000 | +3.7% | 9,027 | +0.3% | 0.00% | 0.0% |
| Q2 2019 | $534,000 | +6.0% | 9,000 | +16.9% | 0.00% | 0.0% |
| Q1 2019 | $504,000 | -55.9% | 7,700 | -67.1% | 0.00% | -60.0% |
| Q4 2018 | $1,142,000 | – | 23,400 | – | 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% |