SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 121 filers reported holding SPARK THERAPEUTICS INC in Q4 2016. The put-call ratio across all filers is 0.53 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $3,434,000 | +10.2% | 68,841 | +32.7% | 0.00% | 0.0% |
| Q3 2016 | $3,116,000 | +597.1% | 51,867 | +492.3% | 0.00% | – |
| Q2 2016 | $447,000 | +212.6% | 8,757 | +80.8% | 0.00% | – |
| Q1 2016 | $143,000 | +25.4% | 4,843 | +92.6% | 0.00% | – |
| Q4 2015 | $114,000 | -97.1% | 2,515 | -97.3% | 0.00% | -100.0% |
| Q3 2015 | $3,887,000 | -60.2% | 93,132 | -42.5% | 0.00% | -60.0% |
| Q2 2015 | $9,758,000 | -50.8% | 161,910 | -36.8% | 0.01% | -54.5% |
| Q1 2015 | $19,851,000 | – | 256,143 | – | 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% |