PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 195 filers reported holding PROTHENA CORP PLC in Q4 2023. The put-call ratio across all filers is 0.73 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2024 | $972 | -66.9% | 47,107 | -22.6% | 0.01% | -75.0% |
| Q3 2023 | $2,936 | -99.7% | 60,853 | +44.2% | 0.03% | +100.0% |
| Q2 2022 | $1,146,000 | -55.7% | 42,213 | -40.3% | 0.01% | -57.6% |
| Q1 2022 | $2,586,000 | -67.9% | 70,702 | -56.6% | 0.03% | -60.2% |
| Q4 2021 | $8,045,000 | +4179.3% | 162,858 | +937.8% | 0.08% | +4050.0% |
| Q4 2020 | $188,000 | -20.0% | 15,692 | -33.2% | 0.00% | -60.0% |
| Q3 2020 | $235,000 | +79.4% | 23,500 | +88.2% | 0.01% | +66.7% |
| Q2 2020 | $131,000 | – | 12,488 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,284,280 | $580,125,000 | 21.68% |
| Prosight Management, LP | 422,000 | $21,695,000 | 13.57% |
| First Light Asset Management, LLC | 1,927,829 | $99,110,000 | 5.95% |
| Palo Alto Investors LP | 1,731,482 | $89,015,000 | 4.90% |
| DCF Advisers, LLC | 61,750 | $3,175,000 | 1.12% |
| APOGEM CAPITAL LLC | 32,104 | $1,650,000 | 1.05% |
| EAM Global Investors LLC | 70,255 | $3,612,000 | 1.00% |
| Rock Springs Capital Management LP | 950,091 | $48,844,000 | 0.96% |
| Atika Capital Management LLC | 234,000 | $12,030,000 | 0.95% |
| Birchview Capital, LP | 30,247 | $1,555,000 | 0.93% |