X0201 4 2004-04-01 0 0000070530 NATIONAL SEMICONDUCTOR CORP NSM 0001224996 DEBARR ROBERT STOCK ADMINISTRATION, MAIL STOP C1-640 2900 SEMICONDUCTOR DR. SANTA CLARA CA 95051 0 1 0 0 Controller Common Stock 2004-04-01 4 M 0 400 15.5 A 1056.0578 D Common Stock 2004-04-01 4 S 0 400 44.85 D 656.0578 D Common Stock 2004-04-01 4 M 0 1000 28.25 A 1656.0578 D Common Stock 2004-04-01 4 S 0 1000 44.85 D 656.0578 D Common Stock 2004-04-01 4 M 0 1550 15.5 A 2206.0578 D Common Stock 2004-04-01 4 S 0 1550 44.85 D 656.0578 D Common Stock 2004-04-01 4 M 0 6750 13.875 A 7406.0578 D Common Stock 2004-04-01 4 S 0 6750 44.85 D 656.0578 D Common Stock 2004-04-01 4 M 0 2000 13 A 2656.0578 D Common Stock 2004-04-01 4 S 0 2000 44.85 D 656.0578 D Common Stock 2004-04-01 4 S 0 656.0578 44.86 D 0 D Common Stock 884.8364 I by Trust Common Stock 183.7724 I by Trust. Non-Qualified Stock Option (right to buy) 13 2004-04-01 4 M 0 2000 0 D 2008-07-28 Common Stock 2000 4375 D Non-Qualified Stock Option (right to buy) 13.875 2004-04-01 4 M 0 6750 0 D 2008-06-29 Common Stock 6750 0 D Non-Qualified Stock Option (right to buy) 15.5 2004-04-01 4 M 0 400 0 D 2004-09-29 Common Stock 400 0 D Non-Qualified Stock Option (right to buy) 15.5 2004-04-01 4 M 0 1550 0 D 2006-07-09 Common Stock 1550 0 D Non-Qualified Stock Option (right to buy) 28.25 2004-04-01 4 M 0 1000 0 D 2005-09-28 Common Stock 1000 2000 D The stock option became exercisable in four equal annual installments beginning on July 28, 1999. The stock option became exercisable in four equal annual installments beginning on June 29, 1999. The stock option became exercisable in four equal annual installments beginning on September 29, 1995. The stock option became exercisable in four equal annual installments beginning on July 9, 1997. The stock option became exercisable in four equal annual installments beginning on September 28, 1996. The nature of the indirect beneficial ownership shown in item 7 on Table 1 are (1) shares allocated and held by the Profit Sharing Plan in the Company's Retirement and Savings Program. As of July 14, 2003, the contribution date for the 2003 fiscal year ending May 25, 2003, and the last contribution date for which data is available, based on unitized valuations provided by the Plan Trustee, 884.8364 shares were fully vested. Shares allocated under the Program are exempt under Rule 16b-3(c) and (2) shares acquired under the Company Stock Fund of the Savings Plus 401(k) Plan of the Company's Retirement and Savings Program. As of July 14, 2003, the date for which data was supplied for contributions made during the 2003 fiscal year ending May 25, 2003, based on unitized valuations provided by the Plan Trustee, 183.7724 shares of NSC stock had been acquired under the NSC Stock Fund for the benefit of Mr. DeBarr. Acquisitions are exempt as exempt Discretionary Transactions under Rule 16b-3(f). By: Emily Cervino, Attorney-in-Fact For: Robert DeBarr 2004-04-01