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 | ||||
|---|---|---|---|---|---|---|
| Q3 2018 | $216,000 | -61.6% | 3,959 | -41.7% | 0.00% | -50.0% |
| Q2 2018 | $562,000 | +21.1% | 6,796 | -2.4% | 0.00% | +33.3% |
| Q1 2018 | $464,000 | -12.8% | 6,962 | -32.7% | 0.00% | -25.0% |
| Q4 2017 | $532,000 | +136.4% | 10,348 | +310.8% | 0.00% | +300.0% |
| Q3 2017 | $225,000 | +81.5% | 2,519 | +3.6% | 0.00% | 0.0% |
| Q2 2016 | $124,000 | +96.8% | 2,432 | +14.0% | 0.00% | – |
| Q1 2016 | $63,000 | +8.6% | 2,133 | +66.9% | 0.00% | – |
| Q4 2015 | $58,000 | +31.8% | 1,278 | +21.1% | 0.00% | – |
| Q3 2015 | $44,000 | +120.0% | 1,055 | +217.8% | 0.00% | – |
| Q2 2015 | $20,000 | – | 332 | – | 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% |