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 | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $1,728,000 | -57.3% | 12,800 | -55.4% | 0.00% | -55.6% |
| Q3 2021 | $4,051,000 | -44.5% | 28,700 | -49.6% | 0.01% | -43.8% |
| Q2 2021 | $7,303,000 | +87.8% | 57,000 | +87.5% | 0.02% | +60.0% |
| Q1 2021 | $3,889,000 | +21.6% | 30,400 | +70.8% | 0.01% | +11.1% |
| Q4 2020 | $3,198,000 | +217.3% | 17,800 | +287.0% | 0.01% | +125.0% |
| Q3 2020 | $1,008,000 | -61.6% | 4,600 | -89.6% | 0.00% | -55.6% |
| Q2 2019 | $2,625,000 | -50.2% | 44,254 | -45.1% | 0.01% | -47.1% |
| Q1 2019 | $5,274,000 | +30.6% | 80,559 | -2.6% | 0.02% | +6.2% |
| Q4 2018 | $4,037,000 | -65.1% | 82,690 | -53.4% | 0.02% | -50.0% |
| Q3 2018 | $11,573,000 | +12.7% | 177,585 | +15.0% | 0.03% | +3.2% |
| Q2 2018 | $10,271,000 | +472.2% | 154,454 | +273.1% | 0.03% | +416.7% |
| Q4 2017 | $1,795,000 | -64.6% | 41,403 | -64.2% | 0.01% | -66.7% |
| Q3 2017 | $5,070,000 | +16.7% | 115,600 | -27.8% | 0.02% | +12.5% |
| Q2 2017 | $4,344,000 | +73.7% | 160,059 | +44.9% | 0.02% | +100.0% |
| Q1 2017 | $2,501,000 | +268.9% | 110,465 | +249.2% | 0.01% | +166.7% |
| Q4 2016 | $678,000 | -19.3% | 31,638 | -16.8% | 0.00% | 0.0% |
| Q3 2016 | $840,000 | -18.9% | 38,045 | -36.6% | 0.00% | -40.0% |
| Q1 2016 | $1,036,000 | -70.1% | 60,025 | -63.3% | 0.01% | -70.6% |
| Q4 2015 | $3,469,000 | +69.1% | 163,651 | +50.6% | 0.02% | +54.5% |
| Q3 2015 | $2,052,000 | -40.9% | 108,697 | -28.1% | 0.01% | -31.2% |
| Q2 2015 | $3,470,000 | +36.0% | 151,190 | +59.8% | 0.02% | +23.1% |
| Q1 2015 | $2,552,000 | +77.8% | 94,600 | +90.7% | 0.01% | +62.5% |
| Q4 2014 | $1,435,000 | -27.3% | 49,617 | -35.8% | 0.01% | -42.9% |
| Q2 2013 | $1,974,000 | – | 77,289 | – | 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% |