SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 164 filers reported holding SPARK THERAPEUTICS INC in Q4 2017. The put-call ratio across all filers is 1.37 and the average weighting 0.3%.
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 ↓ |
|---|---|---|---|
| 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% |