Alcatel-Lucent announced today that Ben Verwaayen is resigning after serving four years as CEO of the Franco-American network equipment maker. The imminent resignation of Verwaayen, who will stay on while the company's board searches for a replacement, was previously reported by The Wall Street Journal. "Alcatel-Lucent has been an enormous part of my life," Verwaayen said in a company statement. "It was therefore a difficult decision to not seek a further term, but it was clear to me that now is an appropriate moment for the Board to seek fresh leadership to take the company forward." Verwaayen, the former head of BT Group, was tapped in September 2008 to be chief executive in a bid to turn around the fortunes of Alcatel-Lucent. The company has lost more than half its value since the two rivals merged in December 2006. The Paris-based telecommunications equipment maker soon embarked on a significant restructuring as it tried to position itself to dominate telecom infrastructure in a post-recession world.