Silicon Graphics (SGI -12%) gets hit after announcing its CEO and president, Mark Barrenechea,...

|About: Silicon Graphics Inc. (SGI)|By:, SA News Editor

Silicon Graphics (SGI -12%) gets hit after announcing its CEO and president, Mark Barrenechea, has resigned effective January, 2012. The company names board chairman Ronald Verdoorn as interim CEO while a search is conducted for a permanent replacement.