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 | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $215,700 | -89.1% | 3,159 | -92.3% | 0.00% | -91.7% |
| Q1 2023 | $1,982,423 | -19.2% | 40,900 | +0.4% | 0.01% | -14.3% |
| Q4 2022 | $2,453,320 | +128.4% | 40,719 | +129.8% | 0.01% | +133.3% |
| Q3 2022 | $1,074,000 | +214.0% | 17,720 | +40.9% | 0.01% | +200.0% |
| Q2 2022 | $342,000 | +12.9% | 12,580 | +52.0% | 0.00% | -33.3% |
| Q1 2022 | $303,000 | -85.6% | 8,274 | -80.6% | 0.00% | -85.0% |
| Q4 2021 | $2,105,000 | -30.1% | 42,605 | +0.8% | 0.02% | -47.4% |
| Q3 2021 | $3,010,000 | +112.7% | 42,262 | +53.5% | 0.04% | +137.5% |
| Q2 2021 | $1,415,000 | +226.8% | 27,530 | +59.9% | 0.02% | +166.7% |
| Q1 2021 | $433,000 | +84.3% | 17,221 | -26.8% | 0.01% | +100.0% |
| Q3 2020 | $235,000 | +89.5% | 23,519 | +97.9% | 0.00% | +50.0% |
| Q2 2020 | $124,000 | +65.3% | 11,886 | +69.3% | 0.00% | 0.0% |
| Q1 2020 | $75,000 | -67.9% | 7,019 | -52.5% | 0.00% | -50.0% |
| Q4 2019 | $234,000 | +105.3% | 14,776 | +1.2% | 0.00% | +100.0% |
| Q3 2019 | $114,000 | -76.4% | 14,604 | -68.1% | 0.00% | -77.8% |
| Q2 2019 | $484,000 | +183.0% | 45,753 | +224.8% | 0.01% | +50.0% |
| Q1 2019 | $171,000 | +48.7% | 14,088 | +25.8% | 0.01% | +20.0% |
| Q4 2018 | $115,000 | -59.9% | 11,198 | +111.1% | 0.01% | -72.2% |
| Q2 2017 | $287,000 | -15.3% | 5,305 | +6.6% | 0.02% | -10.0% |
| Q4 2015 | $339,000 | +334.6% | 4,978 | +188.9% | 0.02% | +400.0% |
| Q3 2015 | $78,000 | +25.8% | 1,723 | +46.4% | 0.00% | +33.3% |
| Q2 2015 | $62,000 | – | 1,177 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $558,941,510 | 18.85% |
| Finepoint Capital LP | 349,300 | $16,853,725 | 8.39% |
| Palo Alto Investors LP | 1,657,458 | $79,972,349 | 7.57% |
| Birchview Capital, LP | 169,574 | $8,181,946 | 6.96% |
| First Light Asset Management, LLC | 1,494,039 | $72,087,382 | 6.85% |
| DCF Advisers, LLC | 82,950 | $4,002,338 | 2.18% |
| Prosight Management, LP | 126,202 | $6,089,247 | 1.93% |
| PFM Health Sciences, LP | 836,571 | $40,364,551 | 1.90% |
| SECTORAL ASSET MANAGEMENT INC | 172,407 | $8,318,638 | 1.62% |
| Boxer Capital, LLC | 625,000 | $30,156,250 | 1.60% |