SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 166 filers reported holding SPARK THERAPEUTICS INC in Q1 2018. The put-call ratio across all filers is 1.09 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2017 | $8,833,000 | – | 171,800 | – | 0.47% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Casdin Capital, LLC | 170,000 | $5,017,000 | 5.76% |
| Rock Springs Capital Management LP | 580,500 | $17,131,000 | 1.44% |
| Opus Point Partners Management, LLC | 31,500 | $930,000 | 0.72% |
| Bain Capital Public Equity Management, LLC | 424,114 | $12,516,000 | 0.46% |
| Baker Brothers Advisors | 1,262,382 | $37,253,000 | 0.39% |
| MARINER INVESTMENT GROUP LLC | 34,350 | $1,014,000 | 0.28% |
| Eventide Asset Management | 150,000 | $4,427,000 | 0.25% |
| Virtus ETF Advisers LLC | 5,251 | $155,000 | 0.21% |
| EMERALD ADVISERS, LLC | 123,970 | $3,658,000 | 0.18% |
| Endurant Capital Management LP | 17,500 | $516,000 | 0.17% |