X0306 4/A 2014-11-03 2014-11-05 0 0000707549 LAM RESEARCH CORP LRCX 0001518578 Heckart Christine C/O LAM RESEARCH CORPORATION 4650 CUSHING PARKWAY FREMONT CA 94538 1 0 0 0 Common Stock 2014-11-03 4 S 0 383 77.74 D 11846 D Shares sold pursuant to 10b5-1 Trading Plan. The sale reported in a Form 4 filed on November 5, 2014 (the "Form 4") of 1,436 shares pursuant to a 10b5-1 Trading Plan, which the broker acknowledged was erroneously initiated without the reporting person's involvement due to the broker's error, was undone prior to settlement through the broker's error account and therefore did not occur for the reporting person's account. After nullifying the erroneous transaction, and following the sale of 383 shares also reported in the Form 4, the reporting person owned 11,846 shares of common stock, including shares subject to unvested Restricted Stock Units. Aaron Beckman by Power of Attorney 2014-11-12