PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 145 filers reported holding PROTHENA CORP PLC in Q1 2016. The put-call ratio across all filers is 1.24 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,091,078 | -19.1% | 22,613 | +14.5% | 0.00% | 0.0% |
| Q2 2023 | $1,348,939 | +1.8% | 19,756 | -27.8% | 0.00% | 0.0% |
| Q1 2023 | $1,325,703 | +0.5% | 27,351 | +24.9% | 0.00% | 0.0% |
| Q4 2022 | $1,319,354 | +33.7% | 21,898 | +34.5% | 0.00% | 0.0% |
| Q3 2022 | $987,000 | +83.1% | 16,279 | -18.1% | 0.00% | – |
| Q2 2022 | $539,000 | -34.0% | 19,873 | -11.1% | 0.00% | – |
| Q1 2022 | $817,000 | -32.9% | 22,344 | -9.3% | 0.00% | -100.0% |
| Q4 2021 | $1,217,000 | -46.0% | 24,624 | -22.2% | 0.00% | 0.0% |
| Q3 2021 | $2,254,000 | +102.9% | 31,648 | +46.4% | 0.00% | 0.0% |
| Q2 2021 | $1,111,000 | +120.9% | 21,612 | +8.0% | 0.00% | – |
| Q1 2021 | $503,000 | +52.9% | 20,018 | -26.9% | 0.00% | – |
| Q4 2020 | $329,000 | -3.8% | 27,381 | -20.0% | 0.00% | – |
| Q3 2020 | $342,000 | -52.3% | 34,228 | -50.1% | 0.00% | -100.0% |
| Q2 2020 | $717,000 | -14.3% | 68,540 | -12.3% | 0.00% | 0.0% |
| Q1 2020 | $837,000 | -36.3% | 78,191 | -5.8% | 0.00% | 0.0% |
| Q4 2019 | $1,313,000 | +8.7% | 82,984 | -46.2% | 0.00% | 0.0% |
| Q3 2019 | $1,208,000 | -54.6% | 154,234 | -38.8% | 0.00% | -50.0% |
| Q2 2019 | $2,663,000 | -21.0% | 252,109 | -9.3% | 0.00% | 0.0% |
| Q1 2019 | $3,369,000 | +893.8% | 277,998 | +743.0% | 0.00% | – |
| Q4 2018 | $339,000 | -93.0% | 32,979 | -91.1% | 0.00% | -100.0% |
| Q3 2018 | $4,869,000 | +101.2% | 372,317 | +124.0% | 0.00% | 0.0% |
| Q2 2018 | $2,420,000 | -74.1% | 166,177 | -34.8% | 0.00% | -75.0% |
| Q1 2018 | $9,348,000 | +7.8% | 254,703 | +10.0% | 0.00% | -33.3% |
| Q4 2017 | $8,674,000 | -20.2% | 231,468 | +37.8% | 0.01% | -14.3% |
| Q3 2017 | $10,875,000 | +65.4% | 167,931 | +38.2% | 0.01% | +40.0% |
| Q2 2017 | $6,575,000 | +45.0% | 121,518 | +49.4% | 0.01% | +66.7% |
| Q1 2017 | $4,533,000 | +15.1% | 81,323 | +1.5% | 0.00% | 0.0% |
| Q4 2016 | $3,938,000 | -35.1% | 80,093 | -20.9% | 0.00% | -25.0% |
| Q3 2016 | $6,068,000 | +137.7% | 101,231 | +38.5% | 0.00% | +100.0% |
| Q2 2016 | $2,553,000 | -2.5% | 73,094 | +14.7% | 0.00% | 0.0% |
| Q1 2016 | $2,619,000 | -92.0% | 63,716 | -86.8% | 0.00% | -91.3% |
| Q4 2015 | $32,822,000 | +192.5% | 481,920 | +94.7% | 0.02% | +155.6% |
| Q3 2015 | $11,222,000 | +218.5% | 247,558 | +270.0% | 0.01% | +350.0% |
| Q2 2015 | $3,523,000 | +35.8% | 66,913 | -1.7% | 0.00% | 0.0% |
| Q1 2015 | $2,594,000 | +155.3% | 68,066 | +38.9% | 0.00% | +100.0% |
| Q4 2014 | $1,016,000 | -48.7% | 49,012 | -45.2% | 0.00% | 0.0% |
| Q3 2014 | $1,981,000 | -14.6% | 89,517 | -13.0% | 0.00% | -50.0% |
| Q2 2014 | $2,319,000 | +271.0% | 102,928 | +529.9% | 0.00% | – |
| Q1 2014 | $625,000 | +49.9% | 16,340 | +3.5% | 0.00% | – |
| Q4 2013 | $417,000 | -53.9% | 15,792 | -64.8% | 0.00% | -100.0% |
| Q3 2013 | $904,000 | – | 44,800 | – | 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% |