PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 190 filers reported holding PROTHENA CORP PLC in Q3 2023. The put-call ratio across all filers is 1.91 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $72,087,382 | -29.6% | 1,494,039 | -0.4% | 6.85% | -14.7% |
| Q2 2023 | $102,428,808 | +39.8% | 1,500,129 | -0.7% | 8.03% | +21.7% |
| Q1 2023 | $73,246,313 | -20.8% | 1,511,168 | -1.6% | 6.60% | -23.2% |
| Q4 2022 | $92,519,840 | -0.8% | 1,535,599 | -0.2% | 8.59% | -9.0% |
| Q3 2022 | $93,290,000 | +77.3% | 1,538,678 | -20.6% | 9.44% | +54.2% |
| Q2 2022 | $52,622,000 | -21.7% | 1,938,183 | +5.4% | 6.12% | +3.3% |
| Q1 2022 | $67,236,000 | -16.1% | 1,838,548 | +13.3% | 5.93% | +3.3% |
| Q4 2021 | $80,173,000 | -22.3% | 1,622,941 | +12.0% | 5.74% | -15.6% |
| Q3 2021 | $103,247,000 | +4.2% | 1,449,494 | -24.8% | 6.80% | +14.4% |
| Q2 2021 | $99,110,000 | +34.4% | 1,927,829 | -34.3% | 5.95% | +21.6% |
| Q1 2021 | $73,745,000 | +198.6% | 2,935,707 | +42.8% | 4.89% | +167.7% |
| Q4 2020 | $24,698,000 | – | 2,056,453 | – | 1.83% | – |
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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% |