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 | $6,031,540 | -32.3% | 125,006 | -4.2% | 0.11% | -27.7% |
| Q2 2023 | $8,907,741 | +35.8% | 130,459 | -3.6% | 0.16% | +15.7% |
| Q1 2023 | $6,557,070 | -20.9% | 135,281 | -1.7% | 0.13% | -26.0% |
| Q4 2022 | $8,288,653 | -2.4% | 137,571 | -1.8% | 0.18% | -7.2% |
| Q3 2022 | $8,494,000 | +116.6% | 140,096 | -3.0% | 0.20% | +126.7% |
| Q2 2022 | $3,921,000 | -26.0% | 144,426 | -0.3% | 0.09% | -8.5% |
| Q1 2022 | $5,297,000 | -29.1% | 144,834 | -4.2% | 0.09% | -27.1% |
| Q4 2021 | $7,470,000 | -30.9% | 151,214 | -0.4% | 0.13% | -35.2% |
| Q3 2021 | $10,811,000 | +2.1% | 151,776 | -26.3% | 0.20% | +4.2% |
| Q2 2021 | $10,586,000 | +50.7% | 205,918 | -26.3% | 0.19% | +42.5% |
| Q1 2021 | $7,023,000 | +89.2% | 279,560 | -9.5% | 0.13% | +78.7% |
| Q4 2020 | $3,711,000 | +12.2% | 308,980 | -6.7% | 0.08% | -5.1% |
| Q3 2020 | $3,307,000 | -7.8% | 331,010 | -3.5% | 0.08% | -10.2% |
| Q2 2020 | $3,587,000 | -3.9% | 342,911 | -1.7% | 0.09% | -22.1% |
| Q1 2020 | $3,734,000 | -41.0% | 348,956 | -12.7% | 0.11% | -18.7% |
| Q4 2019 | $6,329,000 | +328.2% | 399,787 | +112.1% | 0.14% | +297.1% |
| Q3 2019 | $1,478,000 | -29.4% | 188,468 | -4.9% | 0.04% | -28.6% |
| Q2 2019 | $2,094,000 | -20.0% | 198,103 | -8.2% | 0.05% | -16.9% |
| Q1 2019 | $2,619,000 | +27.5% | 215,894 | +8.2% | 0.06% | +11.3% |
| Q4 2018 | $2,054,000 | -34.0% | 199,444 | -16.1% | 0.05% | -18.5% |
| Q3 2018 | $3,110,000 | -22.4% | 237,760 | -13.5% | 0.06% | -20.7% |
| Q2 2018 | $4,010,000 | -66.0% | 275,019 | -14.3% | 0.08% | -64.5% |
| Q1 2018 | $11,779,000 | -7.6% | 320,874 | -5.6% | 0.23% | -5.7% |
| Q4 2017 | $12,742,000 | -45.3% | 339,864 | -5.5% | 0.24% | -43.0% |
| Q3 2017 | $23,298,000 | +16.6% | 359,704 | -2.6% | 0.43% | +12.0% |
| Q2 2017 | $19,988,000 | -7.6% | 369,333 | -4.7% | 0.38% | -7.0% |
| Q1 2017 | $21,623,000 | +8.3% | 387,583 | -4.5% | 0.41% | +2.5% |
| Q4 2016 | $19,970,000 | -22.5% | 405,972 | -5.6% | 0.40% | -22.1% |
| Q3 2016 | $25,782,000 | +69.0% | 429,922 | -1.5% | 0.52% | +57.1% |
| Q2 2016 | $15,257,000 | -16.0% | 436,417 | -1.1% | 0.33% | -15.4% |
| Q1 2016 | $18,166,000 | -10.0% | 441,344 | +48.9% | 0.39% | -8.3% |
| Q4 2015 | $20,194,000 | – | 296,484 | – | 0.42% | – |
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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% |