PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 197 filers reported holding PROTHENA CORP PLC in Q2 2023. The put-call ratio across all filers is 1.55 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $443,659 | +1.4% | 9,195 | +43.5% | 0.20% | +2.5% |
| Q2 2023 | $437,402 | -38.1% | 6,406 | -56.0% | 0.20% | -65.2% |
| Q1 2023 | $706,305 | -19.6% | 14,572 | 0.0% | 0.58% | +10.4% |
| Q4 2022 | $877,963 | +85.2% | 14,572 | +12.5% | 0.52% | +73.1% |
| Q1 2022 | $474,000 | -65.8% | 12,953 | -53.9% | 0.30% | -72.7% |
| Q4 2021 | $1,387,000 | +212.4% | 28,078 | -36.8% | 1.10% | +240.7% |
| Q3 2020 | $444,000 | – | 44,414 | – | 0.32% | – |
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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% |