PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 197 filers reported holding PROTHENA CORP PLC in Q2 2023. The put-call ratio across all filers is 1.55 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2,681,688 | -20.2% | 55,579 | +12.9% | 0.00% | -33.3% |
| Q2 2023 | $3,361,628 | +40.9% | 49,233 | 0.0% | 0.00% | +50.0% |
| Q1 2023 | $2,386,324 | -19.6% | 49,233 | -0.0% | 0.00% | -33.3% |
| Q4 2022 | $2,966,771 | +355.0% | 49,241 | +105.0% | 0.00% | +200.0% |
| Q2 2022 | $652,000 | -25.8% | 24,016 | -0.1% | 0.00% | 0.0% |
| Q1 2022 | $879,000 | -4.5% | 24,045 | +29.1% | 0.00% | 0.0% |
| Q4 2021 | $920,000 | -9.5% | 18,631 | +30.6% | 0.00% | 0.0% |
| Q3 2021 | $1,017,000 | -93.5% | 14,271 | -96.6% | 0.00% | -93.3% |
| Q4 2017 | $15,597,000 | -41.4% | 416,031 | +1.3% | 0.02% | -44.4% |
| Q3 2017 | $26,602,000 | +19.3% | 410,718 | -0.3% | 0.03% | +12.5% |
| Q2 2017 | $22,292,000 | -2.4% | 411,903 | +0.6% | 0.02% | -4.0% |
| Q1 2017 | $22,851,000 | +13.4% | 409,582 | 0.0% | 0.02% | +13.6% |
| Q4 2016 | $20,147,000 | -17.6% | 409,582 | +0.4% | 0.02% | -15.4% |
| Q3 2016 | $24,462,000 | +70.6% | 407,907 | -0.5% | 0.03% | +62.5% |
| Q2 2016 | $14,338,000 | -15.2% | 410,117 | -0.1% | 0.02% | -11.1% |
| Q1 2016 | $16,904,000 | -39.0% | 410,695 | +1.0% | 0.02% | -33.3% |
| Q4 2015 | $27,699,000 | +50.9% | 406,677 | +0.5% | 0.03% | +42.1% |
| Q3 2015 | $18,352,000 | -13.3% | 404,765 | +0.8% | 0.02% | 0.0% |
| Q2 2015 | $21,159,000 | -3.7% | 401,730 | -30.3% | 0.02% | -5.0% |
| Q1 2015 | $21,980,000 | +51.1% | 576,292 | -17.8% | 0.02% | +42.9% |
| Q4 2014 | $14,548,000 | -16.9% | 700,754 | -11.3% | 0.01% | -12.5% |
| Q3 2014 | $17,510,000 | -11.2% | 790,179 | -9.7% | 0.02% | -11.1% |
| Q2 2014 | $19,727,000 | -33.2% | 874,794 | +13.5% | 0.02% | -35.7% |
| Q1 2014 | $29,527,000 | +33.5% | 770,734 | -7.6% | 0.03% | +27.3% |
| Q4 2013 | $22,114,000 | +122.1% | 833,855 | +69.5% | 0.02% | +120.0% |
| Q3 2013 | $9,955,000 | +54.1% | 492,094 | -1.7% | 0.01% | +42.9% |
| Q2 2013 | $6,462,000 | – | 500,575 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $697,952,870 | 21.24% |
| Prosight Management, LP | 330,000 | $19,882,500 | 10.84% |
| First Light Asset Management, LLC | 1,535,599 | $92,519,840 | 8.59% |
| Palo Alto Investors LP | 1,658,577 | $99,929,264 | 8.52% |
| Finepoint Capital LP | 322,900 | $19,455 | 6.29% |
| Birchview Capital, LP | 127,195 | $7,663 | 5.41% |
| Avidity Partners Management LP | 2,953,000 | $177,918,250 | 3.85% |
| DCF Advisers, LLC | 74,100 | $4,464,525 | 3.02% |
| PFM Health Sciences, LP | 875,464 | $52,746,706 | 1.89% |
| SECTORAL ASSET MANAGEMENT INC | 115,200 | $6,940,800 | 1.34% |