PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 196 filers reported holding PROTHENA CORP PLC in Q4 2021. The put-call ratio across all filers is 0.55 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,481,709 | +44.8% | 30,709 | +45.5% | 0.00% | +100.0% |
| Q1 2023 | $1,023,104 | -72.8% | 21,108 | -66.2% | 0.00% | -75.0% |
| Q4 2022 | $3,759,359 | +59.8% | 62,396 | +60.8% | 0.00% | +33.3% |
| Q3 2022 | $2,353,000 | +98.2% | 38,808 | -11.2% | 0.00% | +200.0% |
| Q2 2022 | $1,187,000 | -33.8% | 43,715 | -10.9% | 0.00% | -50.0% |
| Q1 2022 | $1,794,000 | -52.9% | 49,067 | -36.4% | 0.00% | -50.0% |
| Q4 2021 | $3,811,000 | +286.9% | 77,148 | +193.5% | 0.00% | +100.0% |
| Q4 2017 | $985,000 | +364.6% | 26,285 | +704.6% | 0.00% | +100.0% |
| Q3 2017 | $212,000 | – | 3,267 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $702,355,000 | 20.73% |
| Prosight Management, LP | 321,093 | $19,468,000 | 10.43% |
| First Light Asset Management, LLC | 1,538,678 | $93,290,000 | 9.44% |
| Palo Alto Investors LP | 1,649,777 | $100,026,000 | 7.91% |
| Finepoint Capital LP | 305,400 | $18,516,000 | 6.09% |
| Birchview Capital, LP | 118,945 | $7,212,000 | 5.08% |
| DCF Advisers, LLC | 68,000 | $4,123,000 | 2.66% |
| Avidity Partners Management LP | 1,967,000 | $119,259,000 | 2.42% |
| SILVERARC CAPITAL MANAGEMENT, LLC | 110,000 | $6,669,000 | 2.26% |
| DCF Advisers, LLC | 52,500 | $3,183,000 | 2.06% |