X0201 4 2004-04-08 0001094961 VIROLOGIC INC VLGC 0001263113 PERSING DAVID H C/O VIROLOGIC, INC. 345 OYSTER POINT BOULEVARD SOUTH SAN FRANCISCO CA 94080 1 0 0 0 Stock Option (Right to Buy) 3.26 2004-04-08 4 A 0 5000 0 A 2014-04-07 Common Stock 5000 5000 D 1/12th of the shares subject to the option shall vest and become exercisable on May 8, 2004, with the remaining shares vesting in equal monthly installments over the next one (1) year, such that all shares subject to the option will be fully vested and exercisable on April 8, 2005. William D. Young, Attorney-in-fact 2004-04-09