In 2010, a firm called Swift River Investments LLC put money into a software company developed by private-equity giant Blackstone Group LP. Five years later, a company Blackstone co-owned acquired the software firm, at a price that gave Swift River a fat profit. Blackstone’s back-and-forth involving Swift River wouldn’t be notable but for one thing: Swift River invests personal wealth for Blackstone’s president and chief operating...

Source: Wall Street Journal April 26, 2017 14:48 UTC