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.

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.

Buffett is known for his long-term investment philosophies and willingness to hold winning stocks, even if they become significant portions of his portfolio. Just four winning stocks make up 57% of Berkshire Hathaway's $277 billion stock portfolio. Here they are, and why they are still excellent buy-and-hold candidates for any long-term investor.