Warren Buffett has been selling out of a lot of stocks recently, cutting back significantly on his largest holdings and raising cash in a somewhat ominous sign. But Buffett's conglomerate Berkshire Hathaway (NYSE: BRK.

Berkshire Hathaway is arguably always Buffett's favorite stock. But another stock commands a strong second place.

Warren Buffett, the legendary investor and affectionately nicknamed “Oracle of Omaha,” has been known to pick up some epic stock market winners over the years. Whether it's beverage giant Coca-Cola (KO),

Even though the stock market is historically pricey, the Oracle of Omaha is purchasing shares of four brand-name stocks hand over fist.