Cyberonics shares owned by SpiderRock Trading
Quarter-by-quarter ownership of Cyberonics shares owned by SpiderRock Trading
from 13F filings
Historical chart of SpiderRock Trading investment in Cyberonics
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Quarterly reported holdings in Cyberonics by SpiderRock Trading
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2010-12-31 | $0 | 617 | 0.00 |