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 | $522 | +16.8% | 15,752 | +140.4% | 0.00% | -50.0% |
| Q2 2023 | $447 | +40.6% | 6,552 | 0.0% | 0.00% | 0.0% |
| Q1 2023 | $318 | -19.5% | 6,552 | 0.0% | 0.00% | 0.0% |
| Q4 2022 | $395 | -99.9% | 6,552 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $397,000 | +123.0% | 6,552 | 0.0% | 0.00% | +100.0% |
| Q2 2022 | $178,000 | -25.8% | 6,552 | 0.0% | 0.00% | 0.0% |
| Q1 2022 | $240,000 | -41.3% | 6,552 | -20.8% | 0.00% | -50.0% |
| Q4 2021 | $409,000 | -47.7% | 8,273 | -24.7% | 0.00% | -33.3% |
| Q3 2021 | $782,000 | +38.4% | 10,984 | 0.0% | 0.00% | +50.0% |
| Q2 2021 | $565,000 | +104.7% | 10,984 | 0.0% | 0.00% | +100.0% |
| Q1 2021 | $276,000 | +109.1% | 10,984 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $132,000 | +20.0% | 10,984 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $110,000 | -4.3% | 10,984 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $115,000 | -2.5% | 10,984 | 0.0% | 0.00% | 0.0% |
| Q1 2020 | $118,000 | +8.3% | 10,984 | +58.9% | 0.00% | 0.0% |
| Q4 2019 | $109,000 | +101.9% | 6,913 | 0.0% | 0.00% | – |
| Q3 2019 | $54,000 | -26.0% | 6,913 | 0.0% | 0.00% | – |
| Q2 2019 | $73,000 | -13.1% | 6,913 | 0.0% | 0.00% | -100.0% |
| Q1 2019 | $84,000 | +18.3% | 6,913 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $71,000 | -21.1% | 6,913 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $90,000 | -10.9% | 6,913 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $101,000 | -60.2% | 6,913 | 0.0% | 0.00% | -50.0% |
| Q1 2018 | $254,000 | -1.9% | 6,913 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $259,000 | -42.2% | 6,913 | 0.0% | 0.00% | -33.3% |
| Q3 2017 | $448,000 | +19.8% | 6,913 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $374,000 | -3.1% | 6,913 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $386,000 | +11.6% | 6,913 | -1.7% | 0.00% | 0.0% |
| Q4 2016 | $346,000 | -19.9% | 7,031 | -2.3% | 0.00% | -25.0% |
| Q3 2016 | $432,000 | +43.0% | 7,199 | -16.8% | 0.00% | +33.3% |
| Q2 2016 | $302,000 | -22.6% | 8,648 | -8.7% | 0.00% | 0.0% |
| Q1 2016 | $390,000 | -49.0% | 9,473 | -15.7% | 0.00% | -50.0% |
| Q4 2015 | $765,000 | +50.3% | 11,231 | 0.0% | 0.01% | +50.0% |
| Q3 2015 | $509,000 | -22.9% | 11,231 | -10.4% | 0.00% | -20.0% |
| Q2 2015 | $660,000 | +25.5% | 12,528 | -9.1% | 0.01% | +25.0% |
| Q1 2015 | $526,000 | +83.9% | 13,780 | 0.0% | 0.00% | +100.0% |
| Q4 2014 | $286,000 | – | 13,780 | – | 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% |