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 | $3,013,247 | -27.4% | 62,451 | +2.7% | 0.00% | -40.0% |
| Q2 2023 | $4,150,741 | +153233.6% | 60,790 | +8.9% | 0.01% | +66.7% |
| Q1 2023 | $2,707 | -9.6% | 55,844 | +12.3% | 0.00% | -25.0% |
| Q4 2022 | $2,996 | -99.9% | 49,718 | +6.0% | 0.00% | 0.0% |
| Q3 2022 | $2,843,000 | +141.8% | 46,891 | +8.3% | 0.00% | +100.0% |
| Q2 2022 | $1,176,000 | -24.0% | 43,305 | +2.3% | 0.00% | 0.0% |
| Q1 2022 | $1,547,000 | -29.5% | 42,313 | -4.7% | 0.00% | -33.3% |
| Q4 2021 | $2,194,000 | -30.7% | 44,423 | +0.0% | 0.00% | -25.0% |
| Q3 2021 | $3,164,000 | +45.0% | 44,414 | +4.7% | 0.00% | +33.3% |
| Q2 2021 | $2,182,000 | +47.1% | 42,439 | -28.1% | 0.00% | +50.0% |
| Q1 2021 | $1,483,000 | +86.1% | 59,025 | -11.1% | 0.00% | +100.0% |
| Q4 2020 | $797,000 | +30.2% | 66,395 | +8.3% | 0.00% | 0.0% |
| Q3 2020 | $612,000 | -14.4% | 61,305 | -10.3% | 0.00% | 0.0% |
| Q2 2020 | $715,000 | -15.2% | 68,351 | -13.3% | 0.00% | -50.0% |
| Q1 2020 | $843,000 | -21.2% | 78,818 | +16.6% | 0.00% | 0.0% |
| Q4 2019 | $1,070,000 | +109.0% | 67,573 | +3.4% | 0.00% | +100.0% |
| Q3 2019 | $512,000 | -30.5% | 65,360 | -6.2% | 0.00% | 0.0% |
| Q2 2019 | $737,000 | -4.9% | 69,682 | +9.0% | 0.00% | -50.0% |
| Q1 2019 | $775,000 | +31.1% | 63,904 | +11.3% | 0.00% | +100.0% |
| Q4 2018 | $591,000 | +13.4% | 57,416 | +44.1% | 0.00% | 0.0% |
| Q3 2018 | $521,000 | -10.0% | 39,847 | +0.4% | 0.00% | 0.0% |
| Q2 2018 | $579,000 | -56.7% | 39,697 | +9.1% | 0.00% | -66.7% |
| Q1 2018 | $1,336,000 | -7.5% | 36,388 | -5.5% | 0.00% | 0.0% |
| Q4 2017 | $1,444,000 | -52.4% | 38,513 | -17.8% | 0.00% | -57.1% |
| Q3 2017 | $3,036,000 | +23.9% | 46,872 | +3.6% | 0.01% | +16.7% |
| Q2 2017 | $2,450,000 | +3.8% | 45,262 | +6.9% | 0.01% | 0.0% |
| Q1 2017 | $2,361,000 | +18.7% | 42,326 | +4.7% | 0.01% | +20.0% |
| Q4 2016 | $1,989,000 | -14.0% | 40,436 | +4.9% | 0.01% | -16.7% |
| Q3 2016 | $2,312,000 | +82.8% | 38,552 | +6.6% | 0.01% | +50.0% |
| Q2 2016 | $1,265,000 | -10.7% | 36,182 | +5.2% | 0.00% | 0.0% |
| Q1 2016 | $1,416,000 | -32.5% | 34,405 | +11.7% | 0.00% | -42.9% |
| Q4 2015 | $2,098,000 | +61.4% | 30,805 | +7.5% | 0.01% | +75.0% |
| Q3 2015 | $1,300,000 | -11.0% | 28,665 | +3.4% | 0.00% | -20.0% |
| Q2 2015 | $1,460,000 | +21.2% | 27,716 | -12.3% | 0.01% | +66.7% |
| Q1 2015 | $1,205,000 | +95.3% | 31,596 | +6.3% | 0.00% | +50.0% |
| Q4 2014 | $617,000 | +4.2% | 29,736 | +11.3% | 0.00% | 0.0% |
| Q3 2014 | $592,000 | +7.2% | 26,711 | +9.2% | 0.00% | 0.0% |
| Q2 2014 | $552,000 | -14.2% | 24,461 | +45.8% | 0.00% | 0.0% |
| Q1 2014 | $643,000 | +40.7% | 16,778 | -2.6% | 0.00% | +100.0% |
| Q4 2013 | $457,000 | +40.2% | 17,223 | +6.8% | 0.00% | 0.0% |
| Q3 2013 | $326,000 | +56.0% | 16,123 | -0.4% | 0.00% | 0.0% |
| Q2 2013 | $209,000 | – | 16,190 | – | 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% |