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 | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $12,671,000 | +256.9% | 130,654 | +276.8% | 0.01% | +400.0% |
| Q2 2019 | $3,550,000 | -68.0% | 34,675 | -64.5% | 0.00% | -80.0% |
| Q1 2019 | $11,110,000 | +3382.8% | 97,557 | +1096.4% | 0.01% | – |
| Q4 2018 | $319,000 | -37.2% | 8,154 | -12.5% | 0.00% | – |
| Q3 2018 | $508,000 | -52.2% | 9,319 | -27.4% | 0.00% | – |
| Q2 2018 | $1,062,000 | -85.8% | 12,830 | -88.6% | 0.00% | -100.0% |
| Q1 2018 | $7,486,000 | +167.8% | 112,424 | +106.8% | 0.00% | +200.0% |
| Q4 2017 | $2,795,000 | -59.5% | 54,355 | -29.8% | 0.00% | -66.7% |
| Q3 2017 | $6,901,000 | +512.3% | 77,401 | +310.5% | 0.00% | +200.0% |
| Q2 2017 | $1,127,000 | +424.2% | 18,856 | +368.6% | 0.00% | – |
| Q1 2017 | $215,000 | -90.2% | 4,024 | -90.8% | 0.00% | -100.0% |
| Q4 2016 | $2,194,000 | +278.3% | 43,978 | +355.2% | 0.00% | – |
| Q3 2016 | $580,000 | +52.6% | 9,661 | +30.1% | 0.00% | – |
| Q2 2016 | $380,000 | -92.6% | 7,424 | -95.7% | 0.00% | -100.0% |
| Q1 2016 | $5,129,000 | +211.8% | 173,808 | +378.9% | 0.00% | +200.0% |
| Q4 2015 | $1,645,000 | +568.7% | 36,296 | +515.9% | 0.00% | – |
| Q3 2015 | $246,000 | +1950.0% | 5,893 | +2846.5% | 0.00% | – |
| Q2 2015 | $12,000 | -85.4% | 200 | -81.0% | 0.00% | – |
| Q1 2015 | $82,000 | – | 1,051 | – | 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% |