Neuberger Berman Group LLC raised its position in Ion Geophysical Corporation (NYSE:IO) by 4.0% during the first quarter, according to its most recent filing with the Securities and Exchange Commission (SEC). The fund owned 186,140 shares of the oil and gas company’s stock after buying an additional 7,090 shares during the period. Neuberger Berman Group LLC owned about 1.58% of Ion Geophysical Corporation worth $903,000 as of its most recent filing with the SEC.