GULFMARK OFFSHORE INC's ticker is and the CUSIP is 402629958. A total of 1 filers reported holding GULFMARK OFFSHORE INC in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2017 | $11,000 | 0.0% | 50 | -12.3% | 0.00% | -100.0% |
| Q4 2016 | $11,000 | +83.3% | 57 | +14.0% | 0.00% | – |
| Q3 2016 | $6,000 | -72.7% | 50 | -47.9% | 0.00% | -100.0% |
| Q1 2016 | $22,000 | -89.2% | 96 | -82.8% | 0.00% | -87.5% |
| Q4 2015 | $204,000 | +126.7% | 558 | +572.3% | 0.02% | +128.6% |
| Q3 2015 | $90,000 | +221.4% | 83 | -16.2% | 0.01% | +250.0% |
| Q2 2015 | $28,000 | -80.8% | 99 | 0.0% | 0.00% | -88.2% |
| Q1 2015 | $146,000 | +69.8% | 99 | 0.0% | 0.02% | +70.0% |
| Q4 2014 | $86,000 | – | 99 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Marathon Trading Investment Management LLC | 50,000 | $580,000 | 0.02% |
| SIMPLEX TRADING, LLC | 99 | $28,000 | 0.00% |
| Citadel Advisors | 70,500 | $818,000 | 0.00% |