PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 197 filers reported holding PROTHENA CORP PLC in Q4 2021. The put-call ratio across all filers is 0.55 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,471,625 | +139.7% | 30,500 | +81.5% | 0.01% | +200.0% |
| Q1 2022 | $614,000 | -76.5% | 16,800 | -68.2% | 0.00% | -66.7% |
| Q4 2021 | $2,608,000 | +1294.7% | 52,800 | +182.4% | 0.01% | +500.0% |
| Q3 2020 | $187,000 | -76.0% | 18,700 | -74.9% | 0.00% | -83.3% |
| Q2 2020 | $779,000 | -2.3% | 74,500 | 0.0% | 0.01% | -33.3% |
| Q1 2020 | $797,000 | -54.6% | 74,500 | -32.8% | 0.01% | +12.5% |
| Q4 2019 | $1,754,000 | – | 110,800 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 9,426,640 | $73,905,000 | 9.33% |
| GREAT POINT PARTNERS LLC | 2,066,041 | $16,198,000 | 1.49% |
| LONESTAR CAPITAL MANAGEMENT LLC | 300,000 | $2,352,000 | 0.78% |
| TANG CAPITAL MANAGEMENT LLC | 423,823 | $3,323,000 | 0.57% |
| Palo Alto Investors LP | 1,004,449 | $7,875,000 | 0.52% |
| Orbimed Advisors | 3,022,117 | $23,693,000 | 0.45% |
| Kerrisdale Advisers, LLC | 61,640 | $483,000 | 0.30% |
| Endurant Capital Management LP | 86,407 | $677,000 | 0.24% |
| Campbell & CO Investment Adviser LLC | 47,901 | $376,000 | 0.14% |
| Boxer Capital, LLC | 79,598 | $624,000 | 0.04% |