Berkshire Hathaway Inc. Chairman Warren Buffett

Berkshire Hathaway Inc. Chairman Warren Buffett

David Paul Morris/Bloomberg

Goldman Sachs Group Inc. turned to Berkshire Hathaway Inc. Chairman Warren Buffett, a cult figure in the investing world, to shore up its capital and restore market confidence after the firm’s stock tumbled and borrowing costs spiked following the 2008 collapse of Lehman Brothers Holdings Inc.