This table provides information about the institutional ownership of Ion Geophysical Corporation (IO). We have compiled data on the 4 institutions that hold shares in the stock, with a total of 47,367 shares, which have been reported (via 13F filing form) to have a value of $0.

Holding Report Date shares Held Holding Value (Reported) Last Trade Trade History

Track Institutional and Insider Activities on IO

Follow ION Geophysical Corporation and customize your updates to receive the information that matters most to you.

Institutional Portfolio Updates

Receive a notification when an Institution or Guru buys or sells IO shares.

Notify only if

Insider Trading

Get notified when an Ion Geophysical Corporation insider buys or sells IO shares.

Notify only if

News

Receive news related to ION Geophysical Corporation

Track Activities on IO