GULFMARK OFFSHORE CMN STOCK's ticker is and the CUSIP is 402629908. A total of 1 filers reported holding GULFMARK OFFSHORE CMN STOCK in Q3 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2017 | $0 | -100.0% | 5 | -92.4% | 0.00% | – |
| Q3 2016 | $2,000 | +100.0% | 66 | +29.4% | 0.00% | – |
| Q2 2016 | $1,000 | -75.0% | 51 | +64.5% | 0.00% | – |
| Q1 2016 | $4,000 | – | 31 | +520.0% | 0.00% | – |
| Q4 2015 | $0 | – | 5 | +25.0% | 0.00% | – |
| Q3 2015 | $0 | – | 4 | -66.7% | 0.00% | – |
| Q2 2015 | $0 | – | 12 | -65.7% | 0.00% | – |
| Q1 2015 | $0 | – | 35 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SIMPLEX TRADING, LLC | 66 | $2,000 | 0.00% |