PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 187 filers reported holding PROTHENA CORP PLC in Q3 2022. The put-call ratio across all filers is 0.81 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $740,300 | -28.6% | 15,343 | +1.1% | 0.01% | -25.0% |
| Q2 2023 | $1,036,490 | +23.0% | 15,180 | -12.7% | 0.01% | +14.3% |
| Q1 2023 | $842,893 | -81.7% | 17,390 | -77.1% | 0.01% | -83.3% |
| Q3 2022 | $4,595,000 | +122.1% | 75,795 | -0.6% | 0.04% | +162.5% |
| Q2 2022 | $2,069,000 | -42.7% | 76,216 | -22.5% | 0.02% | +77.8% |
| Q1 2018 | $3,609,000 | +23.4% | 98,323 | +26.1% | 0.01% | +28.6% |
| Q4 2017 | $2,924,000 | -37.2% | 77,984 | +8.6% | 0.01% | -36.4% |
| Q3 2017 | $4,654,000 | +51.4% | 71,841 | +26.4% | 0.01% | +37.5% |
| Q2 2017 | $3,074,000 | -13.5% | 56,814 | -10.8% | 0.01% | -20.0% |
| Q1 2017 | $3,555,000 | +17.1% | 63,707 | +3.2% | 0.01% | +11.1% |
| Q4 2016 | $3,037,000 | -36.5% | 61,758 | -22.6% | 0.01% | -40.0% |
| Q3 2016 | $4,785,000 | +86.0% | 79,796 | +8.4% | 0.02% | +87.5% |
| Q2 2016 | $2,573,000 | -41.3% | 73,584 | -31.0% | 0.01% | -42.9% |
| Q1 2016 | $4,386,000 | -7.5% | 106,572 | +53.1% | 0.01% | 0.0% |
| Q4 2015 | $4,741,000 | -50.1% | 69,612 | -66.8% | 0.01% | -51.7% |
| Q3 2015 | $9,503,000 | -7.7% | 209,591 | +7.2% | 0.03% | +16.0% |
| Q2 2015 | $10,300,000 | +41.3% | 195,538 | +2.3% | 0.02% | +47.1% |
| Q1 2015 | $7,287,000 | +74.1% | 191,066 | -5.2% | 0.02% | +70.0% |
| Q4 2014 | $4,185,000 | -12.3% | 201,582 | -6.4% | 0.01% | -9.1% |
| Q3 2014 | $4,773,000 | -12.9% | 215,405 | -11.4% | 0.01% | -21.4% |
| Q2 2014 | $5,479,000 | -46.1% | 243,011 | -8.4% | 0.01% | -51.7% |
| Q1 2014 | $10,159,000 | +52.4% | 265,175 | +5.5% | 0.03% | +45.0% |
| Q4 2013 | $6,666,000 | – | 251,345 | – | 0.02% | – |
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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% |