HEALTH CARE un-covered’s new Sunlight Report on UnitedHealth Group (UHG) is a first-of-its kind look at the nearly 2,700 acquisitions and internally created subsidiaries that make up UHG, the largest healthcare conglomerate in the world. Using the analysis of publicly available data, the report was designed specifically to help the public more clearly grasp the scope of the company’s reach (and that of others’ like them).