SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 157 filers reported holding SPARK THERAPEUTICS INC in Q4 2018. The put-call ratio across all filers is 3.09 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2019 | $2,249,000 | +277.3% | 19,751 | +29.7% | 4.78% | +4591.2% |
| Q4 2018 | $596,000 | +7.6% | 15,231 | +49.9% | 0.10% | +78.9% |
| Q3 2018 | $554,000 | -29.3% | 10,162 | +7.2% | 0.06% | -91.8% |
| Q2 2018 | $784,000 | -41.2% | 9,477 | -52.7% | 0.69% | -40.1% |
| Q1 2018 | $1,333,000 | +22.3% | 20,024 | -5.5% | 1.16% | -15.4% |
| Q4 2017 | $1,090,000 | +110.0% | 21,196 | +264.3% | 1.37% | +1854.3% |
| Q3 2017 | $519,000 | +56.3% | 5,818 | +4.8% | 0.07% | +40.0% |
| Q2 2017 | $332,000 | +16.1% | 5,552 | +3.6% | 0.05% | -2.0% |
| Q1 2017 | $286,000 | +18.2% | 5,361 | +10.6% | 0.05% | -29.2% |
| Q4 2016 | $242,000 | -23.7% | 4,847 | -8.2% | 0.07% | -52.9% |
| Q3 2016 | $317,000 | +17.4% | 5,281 | 0.0% | 0.15% | -23.5% |
| Q2 2016 | $270,000 | +74.2% | 5,281 | +0.6% | 0.20% | -6.5% |
| Q1 2016 | $155,000 | – | 5,251 | – | 0.21% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Casdin Capital, LLC | 93,500 | $5,616,000 | 4.55% |
| Rock Springs Capital Management LP | 625,000 | $37,538,000 | 2.35% |
| Bain Capital Public Equity Management, LLC | 367,314 | $22,061,000 | 1.43% |
| EcoR1 Capital, LLC | 68,600 | $4,120,000 | 1.26% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 368,000 | $22,102,000 | 1.03% |
| Baker Brothers Advisors | 1,318,341 | $79,180,000 | 0.72% |
| Eventide Asset Management | 150,000 | $9,009,000 | 0.55% |
| FEDERATED HERMES, INC. | 1,633,900 | $98,132,000 | 0.28% |
| Iguana Healthcare Management, LLC | 25,000 | $1,502,000 | 0.27% |
| BAILARD, INC. | 40,600 | $2,442,000 | 0.22% |