X0202 4 2004-05-20 0001000180 SANDISK CORP SNDK 0001291570 Lego Catherine P 3787 WOODSIDE ROAD WOODSIDE CA 94062 1 0 0 0 Non-Qualified Stock Option (Right to Buy) 22.90 2004-05-20 4 A 0 128000 0 A 2004-05-20 2014-05-19 Common Stock 128000 128000 D Option shall be immediately exercisable for any or all of the option shares. However, any shares purchased under the option shall be subject to repurchase by the Corporation, at the exercise price paid per share, upon the Optionee's cessation of Board service prior to vesting in those shares. Option shall vest, and the Corporation's repurchase right shall lapse, in a series of four (4) equal and successive annual installments over the Optionee's period of continued service as a Board member, with the first such installment to vest upon the Optionee's completion of one (1) year of Board service measured from the option grant date. Sharon L. Spehar - Attorney in Fact for Catherine P Lego 2004-05-24