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 | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $71,334,000 | -24.9% | 397,071 | -8.3% | 0.10% | -32.7% |
| Q3 2020 | $95,020,000 | +575.2% | 433,132 | +588.6% | 0.15% | +476.9% |
| Q2 2020 | $14,073,000 | +793.5% | 62,901 | +290.7% | 0.03% | +550.0% |
| Q1 2020 | $1,575,000 | +6.9% | 16,100 | -28.4% | 0.00% | +33.3% |
| Q1 2019 | $1,473,000 | +343.7% | 22,500 | +341.2% | 0.00% | +200.0% |
| Q3 2018 | $332,000 | -61.8% | 5,100 | -61.0% | 0.00% | -50.0% |
| Q2 2018 | $870,000 | -66.8% | 13,082 | -86.4% | 0.00% | -75.0% |
| Q2 2017 | $2,620,000 | – | 96,520 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| ORACLE INVESTMENT MANAGEMENT INC | 1,090,309 | $139,483,000 | 20.89% |
| Birchview Capital, LP | 58,644 | $7,502,000 | 4.45% |
| Brown Capital Management | 2,266,241 | $289,920,000 | 2.16% |
| RTW INVESTMENTS, LP | 878,533 | $112,391,000 | 1.76% |
| INVESTMENT MANAGEMENT OF VIRGINIA LLC | 51,610 | $6,602,000 | 1.33% |
| AMERICAN CAPITAL MANAGEMENT INC | 316,217 | $40,454,000 | 1.22% |
| Senvest Management, LLC | 278,037 | $35,569,000 | 1.12% |
| Cannell & Co. | 274,444 | $35,110,000 | 1.10% |
| Fairpointe Capital LLC | 5,637 | $721,000 | 1.09% |
| First Light Asset Management, LLC | 110,170 | $14,094,000 | 0.93% |