PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 187 filers reported holding PROTHENA CORP PLC in Q3 2022. The put-call ratio across all filers is 0.81 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $19,397,997 | -31.4% | 402,031 | -2.9% | 0.00% | -33.3% |
| Q2 2023 | $28,272,358 | +78.0% | 414,065 | +26.3% | 0.00% | +50.0% |
| Q1 2023 | $15,885,000 | +65071.9% | 327,718 | -19.0% | 0.00% | -33.3% |
| Q4 2022 | $24,374 | -99.9% | 404,551 | +43.4% | 0.00% | +50.0% |
| Q3 2022 | $17,109,000 | +119.9% | 282,182 | -1.5% | 0.00% | +100.0% |
| Q2 2022 | $7,780,000 | -15.6% | 286,579 | +13.7% | 0.00% | 0.0% |
| Q1 2022 | $9,221,000 | -13.3% | 252,140 | +17.1% | 0.00% | 0.0% |
| Q4 2021 | $10,638,000 | +946.0% | 215,342 | +1407.4% | 0.00% | – |
| Q3 2021 | $1,017,000 | +29.2% | 14,286 | -6.8% | 0.00% | – |
| Q2 2021 | $787,000 | +168.6% | 15,328 | +31.5% | 0.00% | – |
| Q1 2021 | $293,000 | -28.4% | 11,659 | -65.7% | 0.00% | – |
| Q4 2020 | $409,000 | +178.2% | 33,991 | +129.8% | 0.00% | – |
| Q3 2020 | $147,000 | +2.1% | 14,789 | +7.7% | 0.00% | – |
| Q2 2020 | $144,000 | -18.6% | 13,738 | -16.8% | 0.00% | – |
| Q1 2020 | $177,000 | -84.9% | 16,512 | -77.7% | 0.00% | – |
| Q4 2019 | $1,174,000 | +47.9% | 74,127 | -26.8% | 0.00% | – |
| Q3 2019 | $794,000 | -58.5% | 101,283 | -46.6% | 0.00% | – |
| Q2 2019 | $1,913,000 | -7.5% | 189,645 | +11.2% | 0.00% | – |
| Q1 2019 | $2,069,000 | +302.5% | 170,561 | +242.1% | 0.00% | – |
| Q4 2018 | $514,000 | -61.3% | 49,861 | -50.9% | 0.00% | – |
| Q3 2018 | $1,329,000 | +1016.8% | 101,599 | +1145.1% | 0.00% | – |
| Q2 2018 | $119,000 | -96.6% | 8,160 | -91.4% | 0.00% | -100.0% |
| Q1 2018 | $3,498,000 | -10.5% | 95,292 | -8.6% | 0.00% | 0.0% |
| Q4 2017 | $3,910,000 | -41.8% | 104,285 | +5.1% | 0.00% | 0.0% |
| Q3 2017 | $6,721,000 | +23.0% | 99,200 | -1.8% | 0.00% | 0.0% |
| Q2 2017 | $5,465,000 | +8.7% | 100,975 | +12.0% | 0.00% | 0.0% |
| Q1 2017 | $5,029,000 | +11.7% | 90,153 | -1.6% | 0.00% | 0.0% |
| Q4 2016 | $4,504,000 | -19.9% | 91,580 | -2.3% | 0.00% | 0.0% |
| Q3 2016 | $5,624,000 | +83.6% | 93,780 | +7.0% | 0.00% | 0.0% |
| Q2 2016 | $3,064,000 | -17.8% | 87,640 | -3.2% | 0.00% | 0.0% |
| Q1 2016 | $3,727,000 | -36.5% | 90,556 | +5.0% | 0.00% | 0.0% |
| Q4 2015 | $5,873,000 | +34.6% | 86,223 | -10.4% | 0.00% | 0.0% |
| Q3 2015 | $4,362,000 | -3.9% | 96,198 | +11.6% | 0.00% | 0.0% |
| Q2 2015 | $4,541,000 | +26.5% | 86,226 | -8.4% | 0.00% | 0.0% |
| Q1 2015 | $3,590,000 | +96.9% | 94,125 | +7.2% | 0.00% | – |
| Q4 2014 | $1,823,000 | +601.2% | 87,825 | +794.3% | 0.00% | – |
| Q4 2013 | $260,000 | -16.1% | 9,820 | -35.8% | 0.00% | – |
| Q3 2013 | $310,000 | – | 15,292 | – | 0.00% | – |
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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% |