Renaissance Technologies, the firm founded by Jim Simons (Trades, Portfolio), disclosed in a regulatory 13F filing that its top trades during the first quarter included reductions to its positions in Apple Inc. ( AAPL , Financial) and Taiwan Semiconductor Manufacturing Co. Ltd. ( TSM , Financial) and the closure of its positions in Advanced Micro Devices Inc. ( AMD , Financial) and Alphabet Inc. ( GOOGL , Financial).
Jim Simons' Renaissance Technologies Chops Position in Buffett's Apple