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 | $360,138 | -20.9% | 7,464 | +12.0% | 0.00% | 0.0% |
| Q2 2023 | $455,223 | +61.8% | 6,667 | +14.8% | 0.00% | +100.0% |
| Q1 2023 | $281,368 | -13.3% | 5,805 | +7.8% | 0.00% | -50.0% |
| Q4 2022 | $324,507 | +27.3% | 5,386 | +28.0% | 0.00% | 0.0% |
| Q3 2022 | $255,000 | +34.2% | 4,208 | -39.9% | 0.00% | +100.0% |
| Q2 2022 | $190,000 | -25.8% | 7,006 | 0.0% | 0.00% | 0.0% |
| Q1 2022 | $256,000 | -36.9% | 7,006 | -14.8% | 0.00% | -50.0% |
| Q4 2021 | $406,000 | +18.4% | 8,226 | +71.0% | 0.00% | 0.0% |
| Q3 2021 | $343,000 | +220.6% | 4,811 | +130.5% | 0.00% | +100.0% |
| Q2 2021 | $107,000 | +105.8% | 2,087 | 0.0% | 0.00% | – |
| Q1 2021 | $52,000 | +108.0% | 2,087 | 0.0% | 0.00% | – |
| Q4 2020 | $25,000 | +19.0% | 2,087 | 0.0% | 0.00% | – |
| Q3 2020 | $21,000 | -4.5% | 2,087 | 0.0% | 0.00% | – |
| Q2 2020 | $22,000 | 0.0% | 2,087 | 0.0% | 0.00% | – |
| Q1 2020 | $22,000 | -33.3% | 2,087 | 0.0% | 0.00% | – |
| Q4 2019 | $33,000 | +106.2% | 2,087 | 0.0% | 0.00% | – |
| Q3 2019 | $16,000 | -27.3% | 2,087 | 0.0% | 0.00% | – |
| Q2 2019 | $22,000 | -12.0% | 2,087 | 0.0% | 0.00% | – |
| Q1 2019 | $25,000 | -24.2% | 2,087 | -34.8% | 0.00% | – |
| Q4 2018 | $33,000 | -21.4% | 3,200 | 0.0% | 0.00% | – |
| Q3 2018 | $42,000 | -10.6% | 3,200 | 0.0% | 0.00% | – |
| Q2 2018 | $47,000 | -59.8% | 3,200 | 0.0% | 0.00% | -100.0% |
| Q1 2018 | $117,000 | -2.5% | 3,200 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $120,000 | -22.1% | 3,200 | +34.7% | 0.00% | 0.0% |
| Q3 2017 | $154,000 | +19.4% | 2,375 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $129,000 | +180.4% | 2,375 | +187.5% | 0.00% | – |
| Q1 2017 | $46,000 | +12.2% | 826 | 0.0% | 0.00% | – |
| Q4 2016 | $41,000 | -18.0% | 826 | 0.0% | 0.00% | -100.0% |
| Q3 2016 | $50,000 | +100.0% | 826 | +16.5% | 0.00% | – |
| Q2 2016 | $25,000 | -13.8% | 709 | 0.0% | 0.00% | – |
| Q1 2016 | $29,000 | -39.6% | 709 | 0.0% | 0.00% | -100.0% |
| Q4 2015 | $48,000 | +242.9% | 709 | +122.3% | 0.00% | – |
| Q3 2015 | $14,000 | +55.6% | 319 | +85.5% | 0.00% | – |
| Q2 2015 | $9,000 | – | 172 | – | 0.00% | – |
Download | ||||||
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% |