SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 102 filers reported holding SPARK THERAPEUTICS INC in Q4 2015. The put-call ratio across all filers is 0.54 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $3,840,000 | -15.9% | 76,945 | +1.2% | 0.00% | -33.3% |
| Q3 2016 | $4,566,000 | +40.1% | 76,023 | +19.3% | 0.01% | +50.0% |
| Q2 2016 | $3,260,000 | +248.7% | 63,750 | +101.2% | 0.00% | +300.0% |
| Q1 2016 | $935,000 | -23.9% | 31,687 | +16.8% | 0.00% | -50.0% |
| Q4 2015 | $1,229,000 | +8.7% | 27,119 | +0.0% | 0.00% | 0.0% |
| Q3 2015 | $1,131,000 | -36.1% | 27,112 | -7.7% | 0.00% | 0.0% |
| Q2 2015 | $1,771,000 | -30.1% | 29,378 | -10.2% | 0.00% | -33.3% |
| Q1 2015 | $2,535,000 | – | 32,715 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Casdin Capital, LLC | 93,500 | $5,616,000 | 4.55% |
| Rock Springs Capital Management LP | 625,000 | $37,538,000 | 2.35% |
| Bain Capital Public Equity Management, LLC | 367,314 | $22,061,000 | 1.43% |
| EcoR1 Capital, LLC | 68,600 | $4,120,000 | 1.26% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 368,000 | $22,102,000 | 1.03% |
| Baker Brothers Advisors | 1,318,341 | $79,180,000 | 0.72% |
| Eventide Asset Management | 150,000 | $9,009,000 | 0.55% |
| FEDERATED HERMES, INC. | 1,633,900 | $98,132,000 | 0.28% |
| Iguana Healthcare Management, LLC | 25,000 | $1,502,000 | 0.27% |
| BAILARD, INC. | 40,600 | $2,442,000 | 0.22% |