PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 141 filers reported holding PROTHENA CORP PLC in Q4 2019. The put-call ratio across all filers is 0.03 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,175,708 | +96.6% | 24,367 | +178.3% | 0.00% | +200.0% |
| Q2 2023 | $597,928 | -75.6% | 8,757 | -82.7% | 0.00% | -80.0% |
| Q1 2023 | $2,447,153 | -16.4% | 50,488 | +4.5% | 0.01% | -44.4% |
| Q3 2022 | $2,928,000 | +197.3% | 48,295 | +249.2% | 0.01% | +125.0% |
| Q3 2021 | $985,000 | +13.6% | 13,829 | -59.9% | 0.00% | 0.0% |
| Q1 2021 | $867,000 | +7.2% | 34,487 | -48.8% | 0.00% | +33.3% |
| Q4 2020 | $809,000 | +93.1% | 67,395 | +71.8% | 0.00% | 0.0% |
| Q1 2020 | $419,000 | -87.5% | 39,231 | -81.5% | 0.00% | -87.0% |
| Q4 2019 | $3,358,000 | +327.8% | 212,100 | +227.7% | 0.02% | +283.3% |
| Q1 2019 | $785,000 | -81.5% | 64,720 | -84.3% | 0.01% | -80.6% |
| Q4 2018 | $4,247,000 | +78.4% | 412,284 | +126.5% | 0.03% | +138.5% |
| Q3 2018 | $2,380,000 | +195.3% | 182,020 | +229.2% | 0.01% | +225.0% |
| Q2 2018 | $806,000 | +32.3% | 55,300 | +239.3% | 0.00% | +33.3% |
| Q4 2017 | $609,000 | – | 16,300 | – | 0.00% | – |
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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% |