PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 146 filers reported holding PROTHENA CORP PLC in Q1 2021. The put-call ratio across all filers is 0.25 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $3,083,175 | +51.5% | 63,900 | +114.4% | 0.05% | +30.6% |
| Q2 2023 | $2,034,744 | -3.5% | 29,800 | -14.9% | 0.04% | +9.1% |
| Q4 2022 | $2,108,750 | -72.2% | 35,000 | -72.0% | 0.03% | -68.6% |
| Q3 2022 | $7,578,000 | +391.8% | 125,000 | +316.7% | 0.10% | +425.0% |
| Q2 2021 | $1,541,000 | +97.6% | 30,000 | -3.2% | 0.02% | +25.0% |
| Q1 2021 | $780,000 | – | 31,000 | – | 0.02% | – |
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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% |