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 | ||||
|---|---|---|---|---|---|---|
| Q2 2019 | $92,739,000 | -35.9% | 8,773,790 | -26.4% | 15.69% | +34.4% |
| Q1 2019 | $144,646,000 | +17.8% | 11,924,614 | 0.0% | 11.68% | +9.9% |
| Q4 2018 | $122,824,000 | -21.3% | 11,924,614 | 0.0% | 10.62% | -14.5% |
| Q3 2018 | $155,974,000 | -10.3% | 11,924,614 | 0.0% | 12.42% | -41.1% |
| Q2 2018 | $173,860,000 | -59.0% | 11,924,614 | +3.2% | 21.08% | -44.1% |
| Q1 2018 | $424,280,000 | -1.8% | 11,557,614 | +0.3% | 37.74% | +29.5% |
| Q4 2017 | $432,208,000 | -41.2% | 11,528,614 | +1.6% | 29.14% | -13.7% |
| Q3 2017 | $735,114,000 | +19.1% | 11,349,614 | -0.4% | 33.74% | +48.9% |
| Q2 2017 | $616,991,000 | -0.4% | 11,400,424 | +2.6% | 22.66% | -11.6% |
| Q1 2017 | $619,282,000 | +22.1% | 11,106,211 | +7.7% | 25.64% | +5.0% |
| Q4 2016 | $507,174,000 | -17.9% | 10,310,511 | +0.1% | 24.42% | -2.2% |
| Q3 2016 | $617,384,000 | +71.4% | 10,301,751 | -0.0% | 24.96% | +47.5% |
| Q2 2016 | $360,254,000 | -5.8% | 10,304,751 | +10.8% | 16.93% | -3.2% |
| Q1 2016 | $382,638,000 | -11.9% | 9,296,361 | +45.7% | 17.48% | -6.2% |
| Q4 2015 | $434,519,000 | +54.5% | 6,379,661 | +2.9% | 18.64% | +14.8% |
| Q3 2015 | $281,222,000 | -3.4% | 6,202,525 | +12.2% | 16.24% | -27.3% |
| Q2 2015 | $291,135,000 | +105.9% | 5,527,525 | +49.1% | 22.33% | +11.2% |
| Q1 2015 | $141,430,000 | +103.9% | 3,708,171 | +14.5% | 20.08% | +35.0% |
| Q4 2014 | $69,348,000 | – | 3,237,363 | – | 14.88% | – |
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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% |