SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $2,206,000 | +325.9% | 61,739 | -47.0% | 0.18% | +350.0% |
| Q2 2019 | $518,000 | -9.1% | 116,500 | +55.5% | 0.04% | -21.6% |
| Q1 2019 | $570,000 | -58.9% | 74,900 | -10.7% | 0.05% | -42.0% |
| Q4 2018 | $1,386,000 | +687.5% | 83,858 | +127.9% | 0.09% | +700.0% |
| Q3 2018 | $176,000 | +18.9% | 36,800 | +31.4% | 0.01% | +57.1% |
| Q2 2018 | $148,000 | -85.3% | 28,000 | -73.5% | 0.01% | -86.3% |
| Q1 2018 | $1,008,000 | -75.1% | 105,700 | -23.8% | 0.05% | -70.0% |
| Q4 2017 | $4,047,000 | +953.9% | 138,760 | +684.0% | 0.17% | +750.0% |
| Q3 2015 | $384,000 | +163.0% | 17,700 | +75.2% | 0.02% | +122.2% |
| Q2 2015 | $146,000 | – | 10,100 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Twin Securities, Inc. | 290,793 | $28,201,000 | 17.00% |
| Boxer Capital, LLC | 1,650,000 | $160,017,000 | 11.60% |
| One68 Global Capital, LLC | 48,066 | $4,661,000 | 10.64% |
| EcoR1 Capital, LLC | 714,789 | $69,320,000 | 8.75% |
| Casdin Capital, LLC | 863,300 | $83,722,834,000 | 8.66% |
| STANSBERRY ASSET MANAGEMENT, LLC | 168,629 | $16,354,000 | 7.23% |
| HAVENS ADVISORS LLC | 81,300 | $7,884,000 | 7.17% |
| Chicago Capital Management, LLC | 121,000 | $11,735,000 | 6.12% |
| GARDNER LEWIS ASSET MANAGEMENT L P | 364,397 | $35,339,000 | 5.29% |
| Sandell Asset Management Corp. | 153,000 | $14,838,000 | 4.99% |