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 | $549,278 | +117.4% | 11,384 | +207.6% | 0.02% | +100.0% |
| Q2 2023 | $252,704 | -63.8% | 3,701 | -74.3% | 0.01% | -65.5% |
| Q1 2023 | $698,986 | +180.6% | 14,421 | +248.8% | 0.03% | +93.3% |
| Q4 2022 | $249,134 | -69.0% | 4,135 | -81.2% | 0.02% | -51.6% |
| Q1 2022 | $804,000 | +7.8% | 21,992 | +110.1% | 0.03% | -27.9% |
| Q3 2021 | $746,000 | +34.2% | 10,469 | -3.2% | 0.04% | +19.4% |
| Q2 2021 | $556,000 | – | 10,810 | – | 0.04% | – |
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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% |