PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 189 filers reported holding PROTHENA CORP PLC in Q1 2023. The put-call ratio across all filers is 0.56 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $3,390,512 | +93.5% | 49,656 | +37.3% | 0.63% | +82.6% |
| Q1 2023 | $1,752,481 | -45.5% | 36,156 | -32.2% | 0.34% | -48.3% |
| Q4 2022 | $3,214,097 | -1.2% | 53,346 | -0.5% | 0.66% | -5.9% |
| Q3 2022 | $3,252,000 | -29.4% | 53,637 | -17.0% | 0.71% | -9.0% |
| Q3 2021 | $4,605,000 | -14.3% | 64,650 | -38.2% | 0.78% | -6.4% |
| Q2 2021 | $5,375,000 | +247.0% | 104,550 | +69.6% | 0.83% | +256.2% |
| Q1 2021 | $1,549,000 | -64.3% | 61,657 | -3.3% | 0.23% | -59.0% |
| Q4 2015 | $4,342,000 | +70.7% | 63,746 | +13.6% | 0.57% | +40.9% |
| Q3 2015 | $2,543,000 | -59.0% | 56,093 | -52.4% | 0.40% | -44.5% |
| Q2 2015 | $6,205,000 | +404.5% | 117,809 | +265.3% | 0.73% | +411.3% |
| Q1 2015 | $1,230,000 | – | 32,250 | – | 0.14% | – |
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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% |