Investors Rubicon Founders, WCAS-backed Valtruis, Oak HC/FT and HLM Venture Partners agreed to acquire a majority stake in US Medical Management, a management services organization, from Centene, a publicly traded and managed care company based in St. Louis. Financial terms were not disclosed. "With more than 25 years of experience in home-based care, USMM has outperformed in numerous value-based care initiatives and consistently delivered lower costs, better health outcomes, and higher patient satisfaction ratings," Sarah London, Centene Vice Chairman.