PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 140 filers reported holding PROTHENA CORP PLC in Q4 2020. The put-call ratio across all filers is 0.56 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,560,357 | -58.9% | 32,339 | -58.7% | 0.00% | -73.3% |
| Q1 2023 | $3,795,637 | +1042.1% | 78,309 | +1319.7% | 0.02% | +1400.0% |
| Q4 2022 | $332,339 | +1.9% | 5,516 | -16.5% | 0.00% | 0.0% |
| Q4 2021 | $326,000 | -75.5% | 6,606 | -74.5% | 0.00% | -80.0% |
| Q2 2021 | $1,331,000 | +271.8% | 25,886 | +81.8% | 0.01% | +150.0% |
| Q1 2021 | $358,000 | +67.3% | 14,236 | -20.0% | 0.00% | 0.0% |
| Q4 2020 | $214,000 | +35.4% | 17,799 | +18.2% | 0.00% | -33.3% |
| Q2 2020 | $158,000 | -47.3% | 15,064 | -46.2% | 0.00% | -62.5% |
| Q1 2020 | $300,000 | -78.6% | 28,023 | -68.4% | 0.01% | 0.0% |
| Q4 2019 | $1,404,000 | +372.7% | 88,699 | +133.9% | 0.01% | +166.7% |
| Q3 2019 | $297,000 | -81.0% | 37,927 | -74.3% | 0.00% | -80.0% |
| Q2 2019 | $1,561,000 | +180.8% | 147,648 | +221.8% | 0.02% | +150.0% |
| Q1 2019 | $556,000 | +200.5% | 45,876 | +155.4% | 0.01% | +200.0% |
| Q4 2018 | $185,000 | -73.9% | 17,961 | -66.9% | 0.00% | -75.0% |
| Q3 2018 | $710,000 | +174.1% | 54,259 | +1257.5% | 0.01% | +60.0% |
| Q3 2017 | $259,000 | -50.6% | 3,997 | -73.4% | 0.01% | -84.8% |
| Q2 2016 | $524,000 | +56.9% | 15,000 | +206.1% | 0.03% | -10.8% |
| Q4 2015 | $334,000 | – | 4,900 | – | 0.04% | – |
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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% |