PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 157 filers reported holding PROTHENA CORP PLC in Q2 2021. The put-call ratio across all filers is 0.47 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $10,596,810 | -29.1% | 219,623 | +0.4% | 0.03% | -29.5% |
| Q2 2023 | $14,939,801 | -8.0% | 218,802 | -34.7% | 0.04% | -12.0% |
| Q1 2023 | $16,237,111 | -13.5% | 334,993 | +7.5% | 0.05% | -21.9% |
| Q4 2022 | $18,767,875 | +83.8% | 311,500 | +85.0% | 0.06% | +56.1% |
| Q3 2022 | $10,210,000 | +276.5% | 168,400 | +68.6% | 0.04% | +272.7% |
| Q2 2022 | $2,712,000 | -57.1% | 99,900 | -42.3% | 0.01% | -56.0% |
| Q1 2022 | $6,327,000 | -33.7% | 173,000 | -10.5% | 0.02% | -34.2% |
| Q4 2021 | $9,544,000 | -17.2% | 193,200 | +19.3% | 0.04% | -25.5% |
| Q3 2021 | $11,532,000 | +32.9% | 161,900 | -4.1% | 0.05% | +30.8% |
| Q2 2021 | $8,678,000 | +212.4% | 168,800 | -36.4% | 0.04% | +116.7% |
| Q2 2020 | $2,778,000 | -49.7% | 265,573 | -48.5% | 0.02% | -60.0% |
| Q1 2020 | $5,522,000 | +8.2% | 516,043 | +60.1% | 0.04% | +66.7% |
| Q4 2019 | $5,102,000 | +566.1% | 322,300 | +1807.1% | 0.03% | +350.0% |
| Q3 2015 | $766,000 | -76.5% | 16,900 | -72.7% | 0.01% | -73.9% |
| Q2 2015 | $3,266,000 | – | 62,000 | – | 0.02% | – |
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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% |