In the most recent class action decision released by the Ontario Court of Appeal, Mandeville v The Manufacturers Life Insurance Company, 2014 ONCA 417, Justice Gillese, writing for a unanimous Court, upheld the trial decision dismissing the plaintiffs' claim against one of Canada's leading insurers. The plaintiff class alleged that Manulife owed them a duty of care to ensure that they would participate in the distribution of the value of Manulife when it converted from a mutual insurance company into a stock company — a process known as demutualization.