PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 130 filers reported holding PROTHENA CORP PLC in Q2 2018. The put-call ratio across all filers is 1.91 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $229,525 | -98.0% | 4,757 | -97.2% | 0.00% | -97.2% |
| Q2 2023 | $11,645,973 | +103.8% | 170,562 | +44.7% | 0.04% | +80.0% |
| Q1 2023 | $5,713,498 | +300.2% | 117,877 | +397.4% | 0.02% | +300.0% |
| Q4 2022 | $1,427,744 | -53.6% | 23,697 | -53.3% | 0.01% | -64.3% |
| Q3 2022 | $3,075,000 | +154.8% | 50,716 | +14.1% | 0.01% | +180.0% |
| Q2 2022 | $1,207,000 | +45.6% | 44,436 | -35.6% | 0.01% | +25.0% |
| Q4 2020 | $829,000 | +18.9% | 69,023 | -1.0% | 0.00% | +33.3% |
| Q3 2020 | $697,000 | -1.0% | 69,723 | +3.6% | 0.00% | -25.0% |
| Q2 2020 | $704,000 | -6.1% | 67,323 | -4.0% | 0.00% | -20.0% |
| Q1 2020 | $750,000 | -38.1% | 70,123 | -8.4% | 0.01% | +25.0% |
| Q4 2019 | $1,212,000 | +61.0% | 76,567 | -20.3% | 0.00% | +33.3% |
| Q3 2019 | $753,000 | -55.5% | 96,023 | -40.0% | 0.00% | -50.0% |
| Q2 2019 | $1,692,000 | +9.1% | 160,066 | +25.2% | 0.01% | 0.0% |
| Q1 2019 | $1,551,000 | +19.4% | 127,874 | +1.4% | 0.01% | 0.0% |
| Q4 2018 | $1,299,000 | -36.6% | 126,074 | -19.5% | 0.01% | -14.3% |
| Q3 2018 | $2,050,000 | -35.6% | 156,706 | -28.3% | 0.01% | -46.2% |
| Q2 2018 | $3,184,000 | – | 218,406 | – | 0.01% | – |
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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% |