PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 189 filers reported holding PROTHENA CORP PLC in Q1 2023. The put-call ratio across all filers is 0.56 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $49,734,846 | -30.0% | 1,030,774 | -1.0% | 0.00% | -50.0% |
| Q2 2023 | $71,057,698 | +55.2% | 1,040,681 | +10.2% | 0.00% | +100.0% |
| Q1 2023 | $45,782,628 | -12.7% | 944,556 | +8.6% | 0.00% | 0.0% |
| Q4 2022 | $52,425,573 | +7.0% | 870,134 | +7.7% | 0.00% | 0.0% |
| Q3 2022 | $48,987,000 | +117.6% | 807,960 | -2.5% | 0.00% | 0.0% |
| Q2 2022 | $22,510,000 | -29.7% | 829,076 | -5.3% | 0.00% | 0.0% |
| Q1 2022 | $32,009,000 | -28.1% | 875,300 | -2.9% | 0.00% | 0.0% |
| Q4 2021 | $44,519,000 | -28.0% | 901,204 | +3.8% | 0.00% | -50.0% |
| Q3 2021 | $61,862,000 | +76.7% | 868,478 | +27.5% | 0.00% | +100.0% |
| Q2 2021 | $35,016,000 | +143.8% | 681,096 | +19.1% | 0.00% | – |
| Q1 2021 | $14,360,000 | +98.0% | 571,676 | -5.3% | 0.00% | – |
| Q4 2020 | $7,252,000 | +26.4% | 603,811 | +5.2% | 0.00% | – |
| Q3 2020 | $5,736,000 | -29.1% | 574,147 | -25.7% | 0.00% | – |
| Q2 2020 | $8,087,000 | -4.6% | 773,222 | -2.4% | 0.00% | – |
| Q1 2020 | $8,476,000 | -30.3% | 792,253 | +3.1% | 0.00% | – |
| Q4 2019 | $12,165,000 | +82.1% | 768,497 | -9.8% | 0.00% | – |
| Q3 2019 | $6,682,000 | -22.3% | 852,259 | +4.8% | 0.00% | – |
| Q2 2019 | $8,597,000 | -12.2% | 813,376 | +0.7% | 0.00% | – |
| Q1 2019 | $9,796,000 | +37.1% | 807,559 | +16.4% | 0.00% | – |
| Q4 2018 | $7,145,000 | -28.9% | 693,657 | -9.7% | 0.00% | – |
| Q3 2018 | $10,051,000 | -35.3% | 768,435 | -27.8% | 0.00% | -100.0% |
| Q2 2018 | $15,528,000 | -43.5% | 1,065,015 | +42.3% | 0.00% | 0.0% |
| Q1 2018 | $27,482,000 | -0.8% | 748,604 | +1.3% | 0.00% | 0.0% |
| Q4 2017 | $27,693,000 | -41.6% | 738,669 | +0.9% | 0.00% | -50.0% |
| Q3 2017 | $47,424,000 | +22.9% | 732,198 | +2.7% | 0.00% | 0.0% |
| Q2 2017 | $38,592,000 | -1.2% | 713,084 | +1.9% | 0.00% | 0.0% |
| Q1 2017 | $39,045,000 | +31.8% | 699,858 | +16.2% | 0.00% | 0.0% |
| Q4 2016 | $29,624,000 | -16.5% | 602,227 | +1.7% | 0.00% | 0.0% |
| Q3 2016 | $35,495,000 | +73.9% | 591,879 | +1.4% | 0.00% | +100.0% |
| Q2 2016 | $20,410,000 | -12.7% | 583,806 | +2.8% | 0.00% | -50.0% |
| Q1 2016 | $23,382,000 | -34.0% | 568,084 | +9.2% | 0.00% | 0.0% |
| Q4 2015 | $35,419,000 | +53.4% | 520,034 | +2.1% | 0.00% | +100.0% |
| Q3 2015 | $23,096,000 | -4.8% | 509,392 | +10.6% | 0.00% | -50.0% |
| Q2 2015 | $24,253,000 | +61.5% | 460,483 | +17.0% | 0.00% | +100.0% |
| Q1 2015 | $15,014,000 | +92.7% | 393,645 | +4.9% | 0.00% | 0.0% |
| Q4 2014 | $7,790,000 | -12.6% | 375,253 | -6.7% | 0.00% | 0.0% |
| Q3 2014 | $8,913,000 | +10.7% | 402,226 | +12.6% | 0.00% | 0.0% |
| Q2 2014 | $8,053,000 | -13.4% | 357,116 | +47.2% | 0.00% | 0.0% |
| Q1 2014 | $9,296,000 | +108.3% | 242,657 | +44.2% | 0.00% | – |
| Q4 2013 | $4,463,000 | +85.0% | 168,270 | +41.1% | 0.00% | – |
| Q3 2013 | $2,412,000 | +560.8% | 119,234 | +321.9% | 0.00% | – |
| Q2 2013 | $365,000 | – | 28,260 | – | 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% |