ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044108.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2015 | $14,000 | -93.5% | 27,542 | -95.0% | 0.00% | -100.0% |
| Q3 2015 | $214,000 | -66.4% | 549,929 | -7.4% | 0.00% | -50.0% |
| Q2 2015 | $636,000 | -45.2% | 594,158 | +11.1% | 0.00% | -33.3% |
| Q1 2015 | $1,161,000 | -23.5% | 534,876 | -3.0% | 0.00% | -25.0% |
| Q4 2014 | $1,517,000 | +1066.9% | 551,668 | +1087.3% | 0.00% | – |
| Q3 2014 | $130,000 | -27.4% | 46,466 | +9.9% | 0.00% | – |
| Q2 2014 | $179,000 | -21.5% | 42,284 | -21.8% | 0.00% | -100.0% |
| Q1 2014 | $228,000 | +29.5% | 54,057 | +1.1% | 0.00% | 0.0% |
| Q4 2013 | $176,000 | +4.1% | 53,467 | +65.1% | 0.00% | 0.0% |
| Q3 2013 | $169,000 | -46.9% | 32,388 | -38.7% | 0.00% | 0.0% |
| Q2 2013 | $318,000 | – | 52,832 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
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