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 | ||||
|---|---|---|---|---|---|---|
| Q4 2018 | $422,000 | -64.9% | 10,772 | -51.1% | 0.02% | -59.1% |
| Q3 2018 | $1,203,000 | -34.1% | 22,046 | 0.0% | 0.04% | -36.2% |
| Q2 2018 | $1,825,000 | +24.3% | 22,046 | 0.0% | 0.07% | +21.1% |
| Q1 2018 | $1,468,000 | -26.2% | 22,046 | -43.0% | 0.06% | -26.0% |
| Q4 2017 | $1,990,000 | -8.2% | 38,706 | +59.3% | 0.08% | 0.0% |
| Q3 2017 | $2,167,000 | +49.2% | 24,300 | 0.0% | 0.08% | +42.6% |
| Q2 2017 | $1,452,000 | +12.0% | 24,300 | 0.0% | 0.05% | +8.0% |
| Q1 2017 | $1,296,000 | +6.8% | 24,300 | 0.0% | 0.05% | -3.8% |
| Q4 2016 | $1,213,000 | – | 24,300 | – | 0.05% | – |
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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% |