Berkshire Hathaway Q1 2025 Position Report: 1. Buffett cleared 14.63 million shares of Citigroup and Nu Holdings, and reduced his holdings of 48.66 million shares of Bank of America (BAC. N); 2. Keep the position of 300 million shares of Apple Inc. (AAPL. O) unchanged; 3. Purchase 6.38 million shares of the liquor company Constellation (STZ), 760000 shares of Western Petroleum (OXY. N), and 860000 shares of Pool Corp, a swimming pool supplies company. The number of newly opened stocks in the first quarter was 0.