PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 175 filers reported holding PROTHENA CORP PLC in Q1 2022. The put-call ratio across all filers is 0.32 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $8,102,719 | -12.1% | 167,932 | +24.3% | 0.02% | -12.0% |
| Q2 2023 | $9,222,072 | +177555.0% | 135,062 | +26.1% | 0.02% | +66.7% |
| Q1 2023 | $5,191 | +220.0% | 107,107 | +297.8% | 0.02% | +200.0% |
| Q4 2022 | $1,622 | -99.8% | 26,927 | +58.1% | 0.01% | +25.0% |
| Q3 2022 | $1,032,000 | +151.7% | 17,029 | +12.8% | 0.00% | +100.0% |
| Q2 2022 | $410,000 | -84.9% | 15,090 | -79.6% | 0.00% | -80.0% |
| Q1 2022 | $2,711,000 | +292.3% | 74,130 | +430.0% | 0.01% | +233.3% |
| Q4 2021 | $691,000 | – | 13,986 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $697,952,870 | 21.24% |
| Prosight Management, LP | 330,000 | $19,882,500 | 10.84% |
| First Light Asset Management, LLC | 1,535,599 | $92,519,840 | 8.59% |
| Palo Alto Investors LP | 1,658,577 | $99,929,264 | 8.52% |
| Finepoint Capital LP | 322,900 | $19,455 | 6.29% |
| Birchview Capital, LP | 127,195 | $7,663 | 5.41% |
| Avidity Partners Management LP | 2,953,000 | $177,918,250 | 3.85% |
| DCF Advisers, LLC | 74,100 | $4,464,525 | 3.02% |
| PFM Health Sciences, LP | 875,464 | $52,746,706 | 1.89% |
| SECTORAL ASSET MANAGEMENT INC | 115,200 | $6,940,800 | 1.34% |