PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 139 filers reported holding PROTHENA CORP PLC in Q2 2015. The put-call ratio across all filers is 0.53 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2017 | $7,685,000 | +97.8% | 205,000 | +241.7% | 0.90% | +62.8% |
| Q3 2017 | $3,886,000 | +79.5% | 60,000 | +50.0% | 0.55% | +50.5% |
| Q2 2017 | $2,165,000 | +5.8% | 40,000 | -11.4% | 0.37% | +41.0% |
| Q3 2015 | $2,046,000 | -66.3% | 45,133 | -60.8% | 0.26% | -56.1% |
| Q2 2015 | $6,064,000 | +80.4% | 115,133 | +30.6% | 0.59% | +69.7% |
| Q1 2015 | $3,361,000 | +158.5% | 88,133 | +40.7% | 0.35% | +58.4% |
| Q4 2014 | $1,300,000 | +96.1% | 62,632 | +109.4% | 0.22% | +169.5% |
| Q3 2014 | $663,000 | -68.5% | 29,907 | -45.6% | 0.08% | -83.0% |
| Q1 2014 | $2,107,000 | +58.9% | 55,000 | +10.0% | 0.48% | +30.4% |
| Q4 2013 | $1,326,000 | – | 50,000 | – | 0.37% | – |
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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% |