Ex-Goldman Banker to Malaysia Fund Subpoenaed in U.S. Probe

A former Goldman Sachs Group Inc. banker has become entangled in a sprawling investigation of the Malaysian state investment fund as U.S. authorities turn to him for information.

Tim Leissner was issued a subpoena about the Malaysia matter in late February, according to three people briefed on the matter, just days after Goldman Sachs confirmed he had left the firm. Leissner, a German national, was most recently chairman of the firm’s Southeast Asia operations but had taken personal leave and relocated to Los Angeles by early this year, according to people with knowledge of the move.