SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 102 filers reported holding SPARK THERAPEUTICS INC in Q4 2015. The put-call ratio across all filers is 0.54 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2019 | $22,000 | -99.6% | 221 | -99.5% | 0.00% | -100.0% |
| Q1 2019 | $4,926,000 | +644.1% | 43,259 | +155.5% | 0.01% | +600.0% |
| Q4 2018 | $662,000 | +15.5% | 16,932 | +61.2% | 0.00% | 0.0% |
| Q3 2018 | $573,000 | +41.1% | 10,506 | +72.1% | 0.00% | -88.9% |
| Q1 2018 | $406,000 | -52.4% | 6,106 | -63.2% | 0.02% | -51.4% |
| Q4 2017 | $853,000 | +302.4% | 16,596 | +316.4% | 0.04% | +311.1% |
| Q1 2017 | $212,000 | +3433.3% | 3,986 | +2989.9% | 0.01% | – |
| Q4 2016 | $6,000 | -85.0% | 129 | -80.9% | 0.00% | -100.0% |
| Q3 2016 | $40,000 | +135.3% | 675 | +11.2% | 0.00% | +200.0% |
| Q1 2016 | $17,000 | -90.6% | 607 | -84.8% | 0.00% | -92.9% |
| Q4 2015 | $180,000 | – | 3,990 | – | 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% |