SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 181 filers reported holding SPARK THERAPEUTICS INC in Q3 2018. The put-call ratio across all filers is 1.88 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $3,477,000 | -31.7% | 35,847 | -27.9% | 0.00% | -50.0% |
| Q2 2019 | $5,090,000 | +7069.0% | 49,719 | +7880.6% | 0.00% | – |
| Q1 2019 | $71,000 | -85.1% | 623 | -94.9% | 0.00% | – |
| Q4 2018 | $477,000 | -19.0% | 12,195 | +13.0% | 0.00% | – |
| Q3 2018 | $589,000 | -15.4% | 10,795 | +28.3% | 0.00% | – |
| Q2 2018 | $696,000 | +8.8% | 8,413 | -12.5% | 0.00% | – |
| Q1 2018 | $640,000 | +34.5% | 9,620 | +4.0% | 0.00% | – |
| Q4 2017 | $476,000 | -82.3% | 9,250 | -69.4% | 0.00% | -100.0% |
| Q3 2017 | $2,695,000 | +628.4% | 30,222 | +389.4% | 0.00% | – |
| Q2 2017 | $370,000 | -22.9% | 6,175 | -31.3% | 0.00% | – |
| Q1 2017 | $480,000 | +175.9% | 8,990 | +158.3% | 0.00% | – |
| Q4 2016 | $174,000 | -82.4% | 3,480 | -78.8% | 0.00% | -100.0% |
| Q3 2016 | $986,000 | +70.9% | 16,407 | +45.5% | 0.00% | – |
| Q2 2016 | $577,000 | +2408.7% | 11,280 | +1346.2% | 0.00% | – |
| Q1 2016 | $23,000 | -36.1% | 780 | -1.1% | 0.00% | – |
| Q4 2015 | $36,000 | +9.1% | 789 | -0.3% | 0.00% | – |
| Q3 2015 | $33,000 | +22.2% | 791 | +75.8% | 0.00% | – |
| Q2 2015 | $27,000 | -95.1% | 450 | -93.7% | 0.00% | – |
| Q1 2015 | $554,000 | – | 7,149 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sofinnova Management VIII, L.L.C. | 904,986 | $45,159,000 | 25.41% |
| Casdin Capital, LLC | 128,500 | $6,412,000 | 5.30% |
| Rock Springs Capital Management LP | 625,000 | $31,188,000 | 2.09% |
| Bain Capital Public Equity Management, LLC | 656,226 | $32,746,000 | 1.14% |
| Ghost Tree Capital, LLC | 80,000 | $3,992,000 | 0.96% |
| Baker Brothers Advisors | 1,318,341 | $65,785,000 | 0.64% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 283,000 | $14,122,000 | 0.58% |
| Eventide Asset Management | 150,000 | $7,485,000 | 0.49% |
| Endurant Capital Management LP | 14,800 | $739,000 | 0.30% |
| HIGHLAND CAPITAL MANAGEMENT LP | 112,000 | $5,589,000 | 0.26% |