Roger Moody, Ann Wallin, Sheli Rosenberg

Nanosphere announced that CFO Roger Moody notified the firm this week that he will step down from his position with the firm on Feb. 11. Nanosphere has appointed Ann Wallin, currently VP of finance and accounting, to serve as interim CFO and chief accounting officer after Moody leaves the firm. In addition, Sheli Rosenberg has resigned as chair of Nanosphere's board of directors. The company said that it will conduct search for a successor chair.