PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 142 filers reported holding PROTHENA CORP PLC in Q2 2020. The put-call ratio across all filers is 716.50 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,175,708 | +96.6% | 24,367 | +178.3% | 0.00% | +200.0% |
| Q2 2023 | $597,928 | -75.6% | 8,757 | -82.7% | 0.00% | -80.0% |
| Q1 2023 | $2,447,153 | -16.4% | 50,488 | +4.5% | 0.01% | -44.4% |
| Q3 2022 | $2,928,000 | +197.3% | 48,295 | +249.2% | 0.01% | +125.0% |
| Q3 2021 | $985,000 | +13.6% | 13,829 | -59.9% | 0.00% | 0.0% |
| Q1 2021 | $867,000 | +7.2% | 34,487 | -48.8% | 0.00% | +33.3% |
| Q4 2020 | $809,000 | +93.1% | 67,395 | +71.8% | 0.00% | 0.0% |
| Q1 2020 | $419,000 | -87.5% | 39,231 | -81.5% | 0.00% | -87.0% |
| Q4 2019 | $3,358,000 | +327.8% | 212,100 | +227.7% | 0.02% | +283.3% |
| Q1 2019 | $785,000 | -81.5% | 64,720 | -84.3% | 0.01% | -80.6% |
| Q4 2018 | $4,247,000 | +78.4% | 412,284 | +126.5% | 0.03% | +138.5% |
| Q3 2018 | $2,380,000 | +195.3% | 182,020 | +229.2% | 0.01% | +225.0% |
| Q2 2018 | $806,000 | +32.3% | 55,300 | +239.3% | 0.00% | +33.3% |
| Q4 2017 | $609,000 | – | 16,300 | – | 0.00% | – |
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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% |