Warren Buffett's Berkshire Hathaway disclosed in an SEC filing its holdings as of September 30. Berkshire Hathaway's one new buy during the third quarter was Bank of America (BAC).

Berkshire Hathaway exited one position during the quarter, Wabco (WBC). Berkshire Hathaway increased its stake in three holdings, including by size of previous position, Apple (AAPL), Synchrony Financial (SYF), and Monsanto (MON).

Berkshire Hathaway reduced its stake in three holdings, including by size of previous position, IBM (IBM), Wells Fargo (WFC), and Charter Communications (CHTR). Berkshire Hathaway's top holdings as of September 30, in order of size, were Wells Fargo, Kraft Heinz (KHC), Apple, Coca-Cola (KO), and Bank of America.