Warren Buffett is stockpiling cash. His Berkshire Hathaway holding company continued to sell more than it bought in the third quarter when it offloaded a quarter of its stake in Apple, regulatory filings revealed Thursday.

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Apple Inc ( NASDAQ:AAPL) saw a reduction of 100,000,000 shares, a 25% decrease, impacting the portfolio by -7.52%. The stock traded at an average price of $223.32 during the quarter, with a 3-month return of 3.05% and a year-to-date return of 19.12%.