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 | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $17,979,000 | +7.9% | 270,000 | -16.7% | 0.84% | -3.0% |
| Q4 2017 | $16,660,000 | -42.3% | 324,000 | 0.0% | 0.87% | -47.0% |
| Q3 2017 | $28,888,000 | +222.4% | 324,000 | +116.0% | 1.64% | +193.4% |
| Q2 2017 | $8,961,000 | +12.0% | 150,000 | 0.0% | 0.56% | +5.3% |
| Q1 2017 | $8,001,000 | +6.9% | 150,000 | 0.0% | 0.53% | +8.8% |
| Q4 2016 | $7,485,000 | -16.9% | 150,000 | 0.0% | 0.49% | -11.5% |
| Q3 2016 | $9,009,000 | +17.5% | 150,000 | 0.0% | 0.55% | +17.3% |
| Q2 2016 | $7,670,000 | +73.3% | 150,000 | 0.0% | 0.47% | +89.9% |
| Q1 2016 | $4,427,000 | -34.9% | 150,000 | 0.0% | 0.25% | -27.4% |
| Q4 2015 | $6,797,000 | +232.4% | 150,000 | +206.1% | 0.34% | +185.7% |
| Q3 2015 | $2,045,000 | -11.2% | 49,000 | +28.3% | 0.12% | -4.8% |
| Q2 2015 | $2,302,000 | – | 38,200 | – | 0.12% | – |
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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% |