PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 193 filers reported holding PROTHENA CORP PLC in Q3 2021. The put-call ratio across all filers is 0.62 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $198,742 | -15.0% | 4,119 | +20.3% | 0.01% | -11.1% |
| Q2 2023 | $233,722 | +53.5% | 3,423 | +8.9% | 0.01% | +50.0% |
| Q1 2023 | $152,293 | -5.8% | 3,142 | +7.1% | 0.01% | 0.0% |
| Q4 2022 | $161,663 | -0.8% | 2,934 | +8.6% | 0.01% | -14.3% |
| Q3 2022 | $163,000 | +123.3% | 2,702 | 0.0% | 0.01% | +133.3% |
| Q2 2022 | $73,000 | -26.3% | 2,702 | 0.0% | 0.00% | -25.0% |
| Q1 2022 | $99,000 | -25.6% | 2,702 | 0.0% | 0.00% | 0.0% |
| Q4 2021 | $133,000 | -30.7% | 2,702 | 0.0% | 0.00% | -42.9% |
| Q3 2021 | $192,000 | +45.5% | 2,702 | +4.9% | 0.01% | +40.0% |
| Q2 2021 | $132,000 | +103.1% | 2,577 | 0.0% | 0.01% | +150.0% |
| Q1 2021 | $65,000 | +109.7% | 2,577 | 0.0% | 0.00% | +100.0% |
| Q4 2020 | $31,000 | -3.1% | 2,577 | -20.7% | 0.00% | 0.0% |
| Q3 2020 | $32,000 | -5.9% | 3,249 | 0.0% | 0.00% | -50.0% |
| Q2 2020 | $34,000 | -2.9% | 3,249 | 0.0% | 0.00% | 0.0% |
| Q1 2020 | $35,000 | -31.4% | 3,249 | 0.0% | 0.00% | 0.0% |
| Q4 2019 | $51,000 | +104.0% | 3,249 | 0.0% | 0.00% | +100.0% |
| Q3 2019 | $25,000 | -26.5% | 3,249 | 0.0% | 0.00% | -50.0% |
| Q2 2019 | $34,000 | -12.8% | 3,249 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $39,000 | +18.2% | 3,249 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $33,000 | -21.4% | 3,249 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $42,000 | -10.6% | 3,249 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $47,000 | -60.5% | 3,249 | 0.0% | 0.00% | -66.7% |
| Q1 2018 | $119,000 | -2.5% | 3,249 | 0.0% | 0.01% | 0.0% |
| Q4 2017 | $122,000 | -38.7% | 3,249 | 0.0% | 0.01% | -33.3% |
| Q3 2017 | $199,000 | +13.1% | 3,249 | 0.0% | 0.01% | 0.0% |
| Q2 2017 | $176,000 | +5.4% | 3,249 | +8.3% | 0.01% | +12.5% |
| Q1 2017 | $167,000 | – | 2,999 | – | 0.01% | – |
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% |