SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 117 filers reported holding SPARK THERAPEUTICS INC in Q2 2016. The put-call ratio across all filers is 0.13 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2018 | $12,000 | -25.0% | 300 | 0.0% | 0.01% | -10.0% |
| Q3 2018 | $16,000 | -36.0% | 300 | 0.0% | 0.01% | -44.4% |
| Q2 2018 | $25,000 | +25.0% | 300 | 0.0% | 0.02% | +125.0% |
| Q1 2018 | $20,000 | +150.0% | 300 | +100.0% | 0.01% | +300.0% |
| Q4 2017 | $8,000 | -38.5% | 150 | 0.0% | 0.00% | -50.0% |
| Q3 2017 | $13,000 | +44.4% | 150 | 0.0% | 0.00% | +33.3% |
| Q2 2017 | $9,000 | +12.5% | 150 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $8,000 | +14.3% | 150 | 0.0% | 0.00% | 0.0% |
| Q4 2016 | $7,000 | -22.2% | 150 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $9,000 | +12.5% | 150 | 0.0% | 0.00% | -25.0% |
| Q2 2016 | $8,000 | +100.0% | 150 | 0.0% | 0.00% | +100.0% |
| Q1 2016 | $4,000 | -42.9% | 150 | 0.0% | 0.00% | -50.0% |
| Q4 2015 | $7,000 | +16.7% | 150 | 0.0% | 0.00% | +33.3% |
| Q3 2015 | $6,000 | -33.3% | 150 | 0.0% | 0.00% | -25.0% |
| Q2 2015 | $9,000 | – | 150 | – | 0.00% | – |
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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% |