PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 143 filers reported holding PROTHENA CORP PLC in Q2 2016. The put-call ratio across all filers is 2.21 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $332 | -62.6% | 6,900 | -46.9% | 0.00% | -75.0% |
| Q2 2023 | $887 | -51.1% | 13,000 | -65.3% | 0.00% | +33.3% |
| Q1 2023 | $1,815 | +141.0% | 37,500 | +200.0% | 0.00% | 0.0% |
| Q4 2022 | $753 | -99.9% | 12,500 | -36.2% | 0.00% | -50.0% |
| Q3 2022 | $1,188,000 | +123.3% | 19,600 | 0.0% | 0.01% | +200.0% |
| Q2 2022 | $532,000 | -11.2% | 19,600 | +19.5% | 0.00% | 0.0% |
| Q1 2022 | $599,000 | -26.0% | 16,400 | 0.0% | 0.00% | -33.3% |
| Q4 2021 | $810,000 | -16.9% | 16,400 | +19.7% | 0.00% | -25.0% |
| Q3 2021 | $975,000 | +1641.1% | 13,700 | +1145.5% | 0.00% | – |
| Q2 2021 | $56,000 | -60.6% | 1,100 | -50.0% | 0.00% | -100.0% |
| Q3 2017 | $142,000 | +102.9% | 2,200 | +69.2% | 0.00% | – |
| Q2 2017 | $70,000 | -46.6% | 1,300 | -40.9% | 0.00% | -100.0% |
| Q3 2016 | $131,000 | +129.8% | 2,200 | +57.1% | 0.00% | – |
| Q1 2016 | $57,000 | -60.1% | 1,400 | -33.3% | 0.00% | -100.0% |
| Q4 2015 | $143,000 | +104.3% | 2,100 | +35.6% | 0.00% | – |
| Q3 2015 | $70,000 | -13.6% | 1,549 | 0.0% | 0.00% | – |
| Q2 2015 | $81,000 | +37.3% | 1,549 | 0.0% | 0.00% | – |
| Q1 2015 | $59,000 | +84.4% | 1,549 | 0.0% | 0.00% | – |
| Q4 2014 | $32,000 | -52.9% | 1,549 | -50.0% | 0.00% | – |
| Q3 2014 | $68,000 | -86.8% | 3,098 | -86.4% | 0.00% | -100.0% |
| Q2 2014 | $515,000 | -37.0% | 22,849 | +7.0% | 0.00% | -50.0% |
| Q1 2014 | $818,000 | +40.5% | 21,349 | -2.7% | 0.00% | +33.3% |
| Q4 2013 | $582,000 | +958.2% | 21,949 | +713.2% | 0.00% | – |
| Q3 2013 | $55,000 | -39.6% | 2,699 | -61.7% | 0.00% | – |
| Q2 2013 | $91,000 | – | 7,049 | – | 0.00% | – |
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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% |