Haven, the joint venture formed by three of America’s most powerful companies to lower costs and improve outcomes in health care, is disbanding after three years, CNBC has learned exclusively.The company began informing employees Monday that it will shut down by the end of next month, according to people with direct knowledge of the matter.Many of the Boston-based firm’s 57 workers are expected to be placed at Amazon, Berkshire Hathaway or JPMorgan Chase as the firms each individually push forward in their efforts, and the three companies are still expected to collaborate informally on health-care projects, the people said. …
