Internet reports that Buffett's Berkshire Hathaway released its position report (13F) for the first quarter ended March 31 this year, and it cleared Citigroup (C.N)(14.63 million shares) and financial company Nu Holdings reduced their holdings of Bank of America (BAC.N)(48.66 million shares) and maintained Apple (AAPL.O)'s position (300 million shares) unchanged; In terms of increased holdings, they bought 6.38 million shares of liquor company Constellation Brand (STZ), an increase of 113.5%, added 760,000 shares of Occidental Petroleum (OXY.N), and increased their holdings of swimming pool supplies stock Pool Corp. 860,000 shares. It is worth mentioning that Berkshire's number of new stocks in the first quarter was zero.