SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2019 | $14,000 | +16.7% | 120 | -60.0% | 0.00% | 0.0% |
| Q4 2018 | $12,000 | -33.3% | 300 | -6.5% | 0.00% | 0.0% |
| Q3 2018 | $18,000 | -28.0% | 321 | +7.0% | 0.00% | -50.0% |
| Q2 2018 | $25,000 | +25.0% | 300 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $20,000 | +33.3% | 300 | 0.0% | 0.00% | +100.0% |
| Q4 2017 | $15,000 | -44.4% | 300 | 0.0% | 0.00% | -66.7% |
| Q3 2017 | $27,000 | +50.0% | 300 | 0.0% | 0.00% | +50.0% |
| Q2 2017 | $18,000 | – | 300 | – | 0.00% | – |
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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% |