X0202 4 2005-12-12 0 0000070530 NATIONAL SEMICONDUCTOR CORP NSM 0001225000 MACLEOD DONALD STOCK ADMINISTRATION, MAIL STOP C1-640 2900 SEMICONDUCTOR DR. SANTA CLARA CA 95051 0 1 0 0 President & COO Common Stock 2005-12-12 4 M 0 4500 6.5 A 104856.2588 D Common Stock 2005-12-12 4 S 0 4500 26.89 D 100356.2588 D Common Stock 2005-12-12 4 M 0 28300 6.5 A 128656.2588 D Common Stock 2005-12-12 4 S 0 28300 26.9 D 100356.2588 D Common Stock 2005-12-12 4 M 0 4300 6.5 A 104656.2588 D Common Stock 2005-12-12 4 S 0 4300 26.94 D 100356.2588 D Common Stock 2005-12-12 4 M 0 22200 6.5 A 122556.2588 D Common Stock 2005-12-12 4 S 0 22200 26.95 D 100356.2588 D Common Stock 2005-12-12 4 M 0 2300 6.5 A 102656.2588 D Common Stock 2005-12-12 4 S 0 2300 26.96 D 100356.2588 D Common Stock 2005-12-12 4 M 0 2000 6.5 A 102356.2588 D Common Stock 2005-12-12 4 S 0 2000 26.97 D 100356.2588 D Common Stock 2005-12-12 4 M 0 64000 6.5 A 164356.2588 D Common Stock 2005-12-12 4 S 0 64000 27 D 100356.2588 D Common Stock 2005-12-12 4 M 0 13300 6.5 A 113656.2588 D Common Stock 2005-12-12 4 S 0 13300 27.01 D 100356.2588 D Common Stock 2005-12-12 4 M 0 13500 6.5 A 113856.2588 D Common Stock 2005-12-12 4 S 0 13500 27.02 D 100356.2588 D Common Stock 2005-12-12 4 M 0 6800 6.5 A 107156.2588 D Common Stock 2005-12-12 4 S 0 6800 27.06 D 100356.2588 D Common Stock 2005-12-12 4 M 0 4600 6.5 A 104956.2588 D Common Stock 2005-12-12 4 S 0 4600 27.07 D 100356.2588 D Common Stock 2005-12-12 4 M 0 32800 6.5 A 133156.2588 D Common Stock 2005-12-12 4 S 0 32800 27.09 D 100356.2588 D Common Stock 2005-12-12 4 M 0 83400 6.5 A 183756.2588 D Common Stock 2005-12-12 4 S 0 83400 27.1 D 100356.2588 D Common Stock 2005-12-12 4 M 0 18000 6.5 A 118356.2588 D Common Stock 2005-12-12 4 S 0 18000 27.11 D 100356.2588 D Common Stock 2005-12-12 4 M 0 52700 7.75 A 153056.2588 D Common Stock 2005-12-12 4 S 0 52700 26.8 D 100356.2588 D The nature of the indirect beneficial ownership shown in item 7 on Table 1 is shares allocated and held by the Profit Sharing Plan in the Company's Retirement and Savings Program. As of May 29, 2005, the 2005 fiscal year end, based on unitized valuations provided by the Plan Trustee, 2,204.615 shares allocated to Mr. Macleod's account were fully vested. Shares are contributed to the Plan by the Company and are exempt under Rule 16b-3(c). Share amounts will vary based on unitized values provided by the Plan Trustee. The Company has ceased to make contributions of NSC stock to the Profit Sharing Plan. By: Susan Schmidt, Attorney-in-Fact For: Donald Macleod 2005-12-14