David Moffat, SVP, Marine Imaging Systems at ION GEOPHYSICAL CORP (IO), sold 13,963 shares at $6.35 ($89K) on 2013-05-10, disclosed to the SEC on 2013-05-14.
Open-market sale of $89k IO by SVP, Marine Imaging Systems. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.