QUIDEL CORP's ticker is QDEL and the CUSIP is 74838J101. A total of 362 filers reported holding QUIDEL CORP in Q4 2021. The put-call ratio across all filers is 0.93 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $1,381,000 | +169.7% | 12,279 | +223.5% | 0.00% | – |
| Q4 2021 | $512,000 | -12.5% | 3,796 | -8.4% | 0.00% | – |
| Q3 2021 | $585,000 | -82.4% | 4,143 | -84.0% | 0.00% | -100.0% |
| Q2 2021 | $3,318,000 | -36.3% | 25,896 | -36.4% | 0.00% | -40.0% |
| Q1 2021 | $5,206,000 | +311.5% | 40,697 | +478.2% | 0.01% | +400.0% |
| Q4 2020 | $1,265,000 | +47.8% | 7,038 | +80.4% | 0.00% | 0.0% |
| Q3 2020 | $856,000 | -64.5% | 3,901 | -63.8% | 0.00% | -66.7% |
| Q2 2020 | $2,412,000 | +335.4% | 10,781 | +90.2% | 0.00% | +200.0% |
| Q1 2020 | $554,000 | +156.5% | 5,668 | +74.8% | 0.00% | – |
| Q2 2018 | $216,000 | – | 3,243 | – | 0.00% | – |
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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% |