Gulfmark Offshore Inc-cl A cl a shares owned by SpiderRock Trading
Quarter-by-quarter ownership of Gulfmark Offshore Inc-cl A cl a shares owned by SpiderRock Trading
from 13F filings
Historical chart of SpiderRock Trading investment in Gulfmark Offshore Inc-cl A cl a
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Quarterly reported holdings in Gulfmark Offshore Inc-cl A cl a by SpiderRock Trading
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2014-12-31 | $101k | 4.1k | 24.50 |
| 2014-09-30 | $48k | 1.5k | 32.00 |
| 2014-03-31 | $96k | 2.1k | 45.05 |
| 2013-09-30 | $0 | 2.2k | 0.00 |
| 2013-06-30 | $76k | 1.7k | 44.70 |