ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044108.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2015 | $0 | – | 881 | 0.0% | 0.00% | – |
| Q3 2015 | $0 | -100.0% | 881 | +3.4% | 0.00% | – |
| Q2 2015 | $1,000 | 0.0% | 852 | +74.2% | 0.00% | – |
| Q1 2015 | $1,000 | 0.0% | 489 | 0.0% | 0.00% | – |
| Q4 2014 | $1,000 | 0.0% | 489 | 0.0% | 0.00% | – |
| Q3 2014 | $1,000 | -50.0% | 489 | 0.0% | 0.00% | – |
| Q2 2014 | $2,000 | 0.0% | 489 | -6.0% | 0.00% | – |
| Q1 2014 | $2,000 | +100.0% | 520 | +111.4% | 0.00% | – |
| Q3 2013 | $1,000 | -83.3% | 246 | -78.5% | 0.00% | – |
| Q2 2013 | $6,000 | – | 1,146 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
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