(Reuters) -Warren Buffett’s Berkshire Hathaway said on Thursday it more than doubled its stake in alcoholic beverages producer Constellation Brands, while selling its holdings in Citigroup and Brazilian fintech lender Nu Holdings.

Berkshire disclosed the trades in a regulatory filing detailing its U.S.-listed stock holdings as of March 31.

It said its Constellation stake grew to about 12 million shares from 5.6 million at year end, giving it a 6.6% stake in the maker of Corona and Modelo Especial beer, and Meiomi, Robert Mondavi and Kim Crawford wines.

Berkshire’s quarterly disclosures of its stock portfolio do not say whether Buffett, his portfolio managers Todd Combs and Ted Weschler, or future chief executive Greg Abel are behind individual sales and purchases.

(Reporting by Jonathan Stempel in New York; Editing by Daniel Wallis)