Spark Investment Management LLC reduced its position in shares of Ion Geophysical Corporation (NYSE:IO) by 41.7% during the first quarter, Holdings Channel reports. The fund owned 64,678 shares of the oil and gas company’s stock after selling 46,322 shares during the period. Spark Investment Management LLC’s holdings in Ion Geophysical Corporation were worth $313,000 at the end of the most recent quarter.
A number of other hedge funds and other institutional investors also recently added to or reduced their stakes in IO. Oxford Asset Management boosted its position in Ion Geophysical Corporation by 24.8% in the fourth quarter. Oxford Asset Management now owns 88,911 shares of the oil and gas company’s stock worth $533,000 after buying an additional 17,673 shares during the last quarter. Dimensional Fund Advisors LP boosted its position in Ion Geophysical Corporation by 0.6% in the fourth quarter. Dimensional Fund Advisors LP now owns 267,254 shares of the oil and gas company’s stock worth $1,604,000 after buying an additional 1,508 shares during the last quarter. Renaissance Technologies LLC boosted its position in Ion Geophysical Corporation by 69.6% in the fourth quarter. Renaissance Technologies LLC now owns 259,106 shares of the oil and gas company’s stock worth $1,555,000 after buying an additional 106,324 shares during the last quarter. Norges Bank bought a new position in Ion Geophysical Corporation during the fourth quarter worth $508,000. Finally, Algert Global LLC boosted its position in Ion Geophysical Corporation by 90.3% in the first quarter. Algert Global LLC now owns 42,959 shares of the oil and gas company’s stock worth $208,000 after buying an additional 20,380 shares during the last quarter. Hedge funds and other institutional investors own 35.73% of the company’s stock.