Seviora, a unit of Temasek, and Churchill Asset Management, part of Nuveen Private Capital, have raised about $400 million for a financing vehicle designed to give institutional investors access to private capital investments in Asia and the United States, according to 36Kr. The capital was placed into a collateralized fund obligation, a structure that issues securities backed by equity interests in alternative assets and is commonly used to package relatively illiquid private-market holdings into structured products.