X0202 4 2007-03-15 0 0000350907 THORATEC CORP THOR 0001229447 Smith David V 6035 STONERIDGE DRIVE PLEASANTON CA 94588 0 1 0 0 CFO & EVP Common Stock 2007-03-15 4 A 0 26667 0 A 26667 D Common Stock 2007-03-15 4 A 0 13333 0 A 40000 D Shares granted pursuant to the Offer Letter Agreement dated November 22, 2006, between Issuer and Reporting Person. Shares vest in four equal installments over four years commencing one year after the option grant date. Restricted Stock was granted pursuant to the Company's equity incentive plan with no payment received for the option. David V. Smith 2007-03-19