PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 196 filers reported holding PROTHENA CORP PLC in Q4 2021. The put-call ratio across all filers is 0.55 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 | $697,952,870 | 21.24% |
| Prosight Management, LP | 330,000 | $19,882,500 | 10.84% |
| First Light Asset Management, LLC | 1,535,599 | $92,519,840 | 8.59% |
| Palo Alto Investors LP | 1,658,577 | $99,929,264 | 8.52% |
| Finepoint Capital LP | 322,900 | $19,455 | 6.29% |
| Birchview Capital, LP | 127,195 | $7,663 | 5.41% |
| Avidity Partners Management LP | 2,953,000 | $177,918,250 | 3.85% |
| DCF Advisers, LLC | 74,100 | $4,464,525 | 3.02% |
| PFM Health Sciences, LP | 875,464 | $52,746,706 | 1.89% |
| SECTORAL ASSET MANAGEMENT INC | 115,200 | $6,940,800 | 1.34% |