X0202 4 2007-08-15 0 0001269515 MICROMED CARDIOVASCULAR INC MMCV.OB 0001335821 BENKOWSKI ROBERT J 8965 INTERCHANGE DRIVE HOUSTON TX 77054 0 1 0 0 Chief Executive Officer Common Stock 2007-08-15 4 X 0 23750 0.01 A 59237 D Common Stock 2007-08-15 4 J 0 6178 0.60 D 53059 D Stock Option 0.01 2007-08-15 4 X 0 23750 0.00 D 2015-08-10 Common Stock 23750 23750 D Withheld by issuer upon exercise of options to satisfy tax withholding obligation, pursuant to provision for automatic withholding contained in terms of option agreement. 25% of the shares issuable upon exercise vest on the August 10, 2005 grant date and the remaining 75% vest in three equal installments on the first, second and third anniversaries of the grant date. Jeff Adams, attorney-in-fact for Robert J. Benkowski 2007-08-29