NORWALK, Conn.--Perkin-Elmer announced that, subject to shareholder and final board approval, it plans to distribute a new class of common stock intended to track the separate performance of Celera Genomics, a new business unit formed through an alliance between Perkin-Elmer and Craig Venter, former president of the Institute for Genomic Research, with a mission to become the definitive source for genomic and related biomedical information.