Warren Buffett’s Berkshire Hathaway Inc. slashed its exposure to big-bank shares in the first quarter, liquidating its position in Citigroup Inc. and trimming positions in Bank of America Corp. and Capital One Financial Corp., according to a regulatory filing on Thursday.

Buffett holds steady with Apple, now 26% of Berkshire's portfolio, while trimming Bank of America, signaling cautious views on banking stocks. See more on BRK.A here.

Warren Buffett’s Berkshire Hathaway (BRK.A, BRK.B) sold its shares of Citigroup (C) during the first quarter, while trimming its stakes in Bank of America (BAC) and Capital One (COF). Berkshire shed its more than 14.