SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 207 filers reported holding SPARK THERAPEUTICS INC in Q1 2019. The put-call ratio across all filers is 5.87 and the average weighting 1.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $24,041,000 | -2.9% | 247,891 | +2.5% | 1.08% | -10.9% |
| Q2 2019 | $24,751,000 | +105.9% | 241,750 | +129.0% | 1.22% | +79.8% |
| Q1 2019 | $12,022,000 | +200266.7% | 105,569 | +102394.2% | 0.68% | – |
| Q3 2018 | $6,000 | -97.0% | 103 | -95.4% | 0.00% | -100.0% |
| Q3 2017 | $198,000 | -38.5% | 2,220 | -58.8% | 0.02% | -40.0% |
| Q2 2017 | $322,000 | +110.5% | 5,387 | +46.5% | 0.03% | +36.4% |
| Q3 2015 | $153,000 | -31.1% | 3,678 | 0.0% | 0.02% | -29.0% |
| Q2 2015 | $222,000 | – | 3,678 | – | 0.03% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sofinnova Management VIII, L.L.C. | 904,986 | $45,159,000 | 25.41% |
| Casdin Capital, LLC | 128,500 | $6,412,000 | 5.30% |
| Rock Springs Capital Management LP | 625,000 | $31,188,000 | 2.09% |
| Bain Capital Public Equity Management, LLC | 656,226 | $32,746,000 | 1.14% |
| Ghost Tree Capital, LLC | 80,000 | $3,992,000 | 0.96% |
| Baker Brothers Advisors | 1,318,341 | $65,785,000 | 0.64% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 283,000 | $14,122,000 | 0.58% |
| Eventide Asset Management | 150,000 | $7,485,000 | 0.49% |
| Endurant Capital Management LP | 14,800 | $739,000 | 0.30% |
| HIGHLAND CAPITAL MANAGEMENT LP | 112,000 | $5,589,000 | 0.26% |