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 | $8,318,638 | -19.8% | 172,407 | +13.5% | 1.62% | -6.3% |
| Q2 2023 | $10,368,181 | +74.3% | 151,848 | +23.7% | 1.73% | +51.1% |
| Q1 2023 | $5,949,693 | -14.3% | 122,750 | +6.6% | 1.14% | -14.8% |
| Q4 2022 | $6,940,800 | +0.6% | 115,200 | -37.4% | 1.34% | +55.8% |
| Q4 2017 | $6,901,000 | -45.6% | 184,063 | -6.0% | 0.86% | -47.3% |
| Q3 2017 | $12,689,000 | +55.2% | 195,909 | +29.7% | 1.64% | +82.9% |
| Q2 2017 | $8,175,000 | +3.9% | 151,046 | +7.1% | 0.89% | -2.7% |
| Q1 2017 | $7,869,000 | +29.4% | 141,046 | +14.1% | 0.92% | +36.4% |
| Q4 2016 | $6,082,000 | -18.2% | 123,646 | -0.2% | 0.67% | -7.7% |
| Q3 2016 | $7,433,000 | +21.7% | 123,946 | -29.1% | 0.73% | +15.7% |
| Q2 2016 | $6,109,000 | -62.7% | 174,746 | -56.1% | 0.63% | -20.3% |
| Q1 2016 | $16,386,000 | – | 398,100 | – | 0.79% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,284,280 | $557,443,000 | 17.76% |
| Prosight Management, LP | 441,000 | $21,785,000 | 13.04% |
| First Light Asset Management, LLC | 1,622,941 | $80,173,000 | 5.74% |
| Palo Alto Investors LP | 1,685,282 | $83,253,000 | 5.32% |
| Birchview Capital, LP | 40,247 | $1,988,000 | 1.28% |
| DCF Advisers, LLC | 60,000 | $2,964,000 | 1.20% |
| HighVista Strategies LLC | 28,078 | $1,387,000 | 1.10% |
| APOGEM CAPITAL LLC | 33,212 | $1,641,000 | 1.08% |
| Redmile Group, LLC | 765,675 | $37,824,000 | 0.86% |
| Rock Springs Capital Management LP | 647,730 | $31,998,000 | 0.74% |