SPARK THERAPEUTICS INC's ticker is ONCE and the CUSIP is 84652J103. A total of 207 filers reported holding SPARK THERAPEUTICS INC in Q1 2019. The put-call ratio across all filers is 5.87 and the average weighting 1.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $9,256,000 | -39.4% | 95,436 | -36.0% | 0.01% | -33.3% |
| Q2 2019 | $15,266,000 | +139.9% | 149,111 | +166.8% | 0.01% | +125.0% |
| Q1 2019 | $6,363,000 | +1040.3% | 55,882 | +292.1% | 0.00% | – |
| Q4 2018 | $558,000 | -47.0% | 14,252 | -26.1% | 0.00% | -100.0% |
| Q3 2018 | $1,052,000 | +130.2% | 19,294 | +250.0% | 0.00% | – |
| Q2 2018 | $457,000 | -57.2% | 5,512 | -65.7% | 0.00% | -100.0% |
| Q1 2018 | $1,069,000 | +375.1% | 16,071 | +266.6% | 0.00% | – |
| Q4 2017 | $225,000 | -55.1% | 4,384 | -22.0% | 0.00% | – |
| Q3 2017 | $501,000 | +377.1% | 5,621 | +219.0% | 0.00% | – |
| Q2 2017 | $105,000 | -53.9% | 1,762 | -59.1% | 0.00% | – |
| Q1 2017 | $228,000 | +20.6% | 4,310 | +13.9% | 0.00% | – |
| Q4 2016 | $189,000 | -81.1% | 3,785 | -77.3% | 0.00% | -100.0% |
| Q3 2016 | $1,001,000 | -89.5% | 16,683 | -91.0% | 0.00% | -91.7% |
| Q2 2016 | $9,513,000 | +20140.4% | 186,055 | +11307.4% | 0.01% | – |
| Q1 2016 | $47,000 | -98.6% | 1,631 | -97.8% | 0.00% | -100.0% |
| Q4 2015 | $3,383,000 | -80.3% | 75,169 | -82.1% | 0.00% | -81.0% |
| Q3 2015 | $17,185,000 | +1782.3% | 419,142 | +2655.2% | 0.02% | +2000.0% |
| Q2 2015 | $913,000 | +11312.5% | 15,213 | +14251.9% | 0.00% | – |
| Q1 2015 | $8,000 | – | 106 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Casdin Capital, LLC | 93,500 | $5,616,000 | 4.55% |
| Rock Springs Capital Management LP | 625,000 | $37,538,000 | 2.35% |
| Bain Capital Public Equity Management, LLC | 367,314 | $22,061,000 | 1.43% |
| EcoR1 Capital, LLC | 68,600 | $4,120,000 | 1.26% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 368,000 | $22,102,000 | 1.03% |
| Baker Brothers Advisors | 1,318,341 | $79,180,000 | 0.72% |
| Eventide Asset Management | 150,000 | $9,009,000 | 0.55% |
| FEDERATED HERMES, INC. | 1,633,900 | $98,132,000 | 0.28% |
| Iguana Healthcare Management, LLC | 25,000 | $1,502,000 | 0.27% |
| BAILARD, INC. | 40,600 | $2,442,000 | 0.22% |