PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 201 filers reported holding PROTHENA CORP PLC in Q4 2022. The put-call ratio across all filers is 0.29 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2022 | $1,598,000 | +43.2% | 26,366 | -35.8% | 1.59% | +57.8% |
| Q2 2022 | $1,116,000 | -26.9% | 41,092 | -1.5% | 1.01% | -3.3% |
| Q1 2022 | $1,526,000 | -16.8% | 41,735 | +12.5% | 1.04% | -13.4% |
| Q4 2021 | $1,834,000 | +3.6% | 37,112 | +49.4% | 1.20% | +6.9% |
| Q3 2021 | $1,770,000 | +7.3% | 24,849 | -22.6% | 1.13% | +6.8% |
| Q2 2021 | $1,650,000 | +42.2% | 32,104 | -30.5% | 1.05% | +34.1% |
| Q1 2021 | $1,160,000 | +24.1% | 46,188 | -40.6% | 0.79% | +26.4% |
| Q4 2020 | $935,000 | – | 77,813 | – | 0.62% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $558,941,510 | 18.85% |
| Finepoint Capital LP | 349,300 | $16,853,725 | 8.39% |
| Palo Alto Investors LP | 1,657,458 | $79,972,349 | 7.57% |
| Birchview Capital, LP | 169,574 | $8,181,946 | 6.96% |
| First Light Asset Management, LLC | 1,494,039 | $72,087,382 | 6.85% |
| DCF Advisers, LLC | 82,950 | $4,002,338 | 2.18% |
| Prosight Management, LP | 126,202 | $6,089,247 | 1.93% |
| PFM Health Sciences, LP | 836,571 | $40,364,551 | 1.90% |
| SECTORAL ASSET MANAGEMENT INC | 172,407 | $8,318,638 | 1.62% |
| Boxer Capital, LLC | 625,000 | $30,156,250 | 1.60% |