SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 164 filers reported holding SPARK THERAPEUTICS INC in Q4 2017. The put-call ratio across all filers is 1.37 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2017 | $403,000 | – | 4,520 | – | 0.09% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sofinnova Management VIII, L.L.C. | 699,430 | $37,308,000 | 19.68% |
| Casdin Capital, LLC | 135,000 | $7,201,000 | 4.25% |
| Ghost Tree Capital, LLC | 200,000 | $10,668,000 | 1.99% |
| Rock Springs Capital Management LP | 625,000 | $33,338,000 | 1.92% |
| Bain Capital Public Equity Management, LLC | 228,517 | $12,190,000 | 0.86% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 283,000 | $15,095,000 | 0.58% |
| Baker Brothers Advisors | 1,318,341 | $70,320,000 | 0.58% |
| Eventide Asset Management | 150,000 | $8,001,000 | 0.53% |
| FOX RUN MANAGEMENT, L.L.C. | 17,700 | $944,000 | 0.38% |
| FEDERATED HERMES, INC. | 1,363,200 | $72,713,000 | 0.21% |