SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 1 filers reported holding SPARK THERAPEUTICS INC in Q4 2019. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $886,000 | +8.4% | 9,132 | +14.5% | 0.00% | 0.0% |
| Q2 2019 | $817,000 | +75.7% | 7,976 | +95.6% | 0.00% | – |
| Q1 2019 | $465,000 | +97.0% | 4,077 | -32.2% | 0.00% | – |
| Q4 2018 | $236,000 | +33.3% | 6,011 | +84.8% | 0.00% | – |
| Q3 2018 | $177,000 | +669.6% | 3,253 | +1045.4% | 0.00% | – |
| Q2 2018 | $23,000 | +475.0% | 284 | +365.6% | 0.00% | – |
| Q1 2018 | $4,000 | -96.9% | 61 | -97.5% | 0.00% | – |
| Q4 2017 | $127,000 | +2440.0% | 2,461 | +3934.4% | 0.00% | – |
| Q3 2017 | $5,000 | +25.0% | 61 | 0.0% | 0.00% | – |
| Q2 2017 | $4,000 | -55.6% | 61 | -62.6% | 0.00% | – |
| Q1 2017 | $9,000 | 0.0% | 163 | 0.0% | 0.00% | – |
| Q4 2016 | $9,000 | +125.0% | 163 | +167.2% | 0.00% | – |
| Q3 2016 | $4,000 | +33.3% | 61 | 0.0% | 0.00% | – |
| Q2 2016 | $3,000 | – | 61 | – | 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% |