PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 141 filers reported holding PROTHENA CORP PLC in Q3 2020. The put-call ratio across all filers is 1.19 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2024 | $2,507,037 | +86.1% | 121,465 | +123.3% | 0.00% | – |
| Q1 2024 | $1,347,389 | -80.0% | 54,396 | -70.6% | 0.00% | -100.0% |
| Q4 2023 | $6,729,986 | +2129.6% | 185,195 | +2860.3% | 0.00% | – |
| Q3 2023 | $301,852 | -91.7% | 6,256 | -88.3% | 0.00% | -100.0% |
| Q2 2023 | $3,651,273 | +288.4% | 53,475 | +175.7% | 0.00% | – |
| Q1 2023 | $939,979 | +37.6% | 19,393 | -22.9% | 0.00% | – |
| Q2 2022 | $683,000 | -78.1% | 25,168 | -70.4% | 0.00% | -100.0% |
| Q1 2022 | $3,112,000 | +39.8% | 85,100 | +88.8% | 0.00% | – |
| Q4 2021 | $2,226,000 | -80.8% | 45,068 | -72.4% | 0.00% | -100.0% |
| Q3 2021 | $11,613,000 | +81.5% | 163,049 | +31.0% | 0.00% | +33.3% |
| Q2 2021 | $6,400,000 | +581.6% | 124,500 | +232.9% | 0.00% | – |
| Q1 2021 | $939,000 | +297.9% | 37,400 | +58.5% | 0.00% | – |
| Q3 2020 | $236,000 | -49.8% | 23,592 | -47.5% | 0.00% | – |
| Q2 2020 | $470,000 | +167.0% | 44,900 | +162.4% | 0.00% | – |
| Q4 2018 | $176,000 | +15.8% | 17,111 | +64.3% | 0.00% | – |
| Q2 2018 | $152,000 | -84.5% | 10,417 | -60.9% | 0.00% | -100.0% |
| Q1 2018 | $978,000 | +142.1% | 26,630 | +327.0% | 0.00% | +200.0% |
| Q3 2017 | $404,000 | +38.4% | 6,237 | +15.5% | 0.00% | 0.0% |
| Q2 2017 | $292,000 | -40.0% | 5,400 | -38.2% | 0.00% | -50.0% |
| Q1 2017 | $487,000 | +109.9% | 8,731 | +156.6% | 0.00% | +100.0% |
| Q4 2015 | $232,000 | – | 3,402 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,284,280 | $580,125,000 | 21.68% |
| Prosight Management, LP | 422,000 | $21,695,000 | 13.57% |
| First Light Asset Management, LLC | 1,927,829 | $99,110,000 | 5.95% |
| Palo Alto Investors LP | 1,731,482 | $89,015,000 | 4.90% |
| DCF Advisers, LLC | 61,750 | $3,175,000 | 1.12% |
| APOGEM CAPITAL LLC | 32,104 | $1,650,000 | 1.05% |
| EAM Global Investors LLC | 70,255 | $3,612,000 | 1.00% |
| Rock Springs Capital Management LP | 950,091 | $48,844,000 | 0.96% |
| Atika Capital Management LLC | 234,000 | $12,030,000 | 0.95% |
| Birchview Capital, LP | 30,247 | $1,555,000 | 0.93% |