X0201 42003-09-12 0001068796 MAXYGEN INC MAXY 0001101713 RINGOLD GORDON C/O MAXYGEN, INC. 515 GALVESTON DRIVE REDWOOD CITY CA 94063 1000Common Stock2003-09-124S010011.46D492850ITrustCommon Stock2003-09-124S020011.37D492650ITrustCommon Stock2003-09-124S010011.351D492550ITrustCommon Stock2003-09-124S040011.35D492150ITrustCommon Stock2003-09-124S010011.34D492050ITrustCommon Stock2003-09-124S010011.32D491950ITrustCommon Stock2003-09-124S010011.312D491850ITrustCommon Stock2003-09-124S030011.31D491550ITrustCommon Stock2003-09-124S030011.30D491250ITrustCommon Stock2003-09-124S020011.29D491050ITrustCommon Stock2003-09-124S010011.28D490950ITrustCommon stock2003-09-124S020011.27D490750ITrustCommon Stock2003-09-124S010011.26D490650ITrustCommon Stock2003-09-124S010011.25D490550ITrustCommon Stock2003-09-124S010011.24D490450ITrustCommon Stock2003-09-124S030011.23D490150ITrustCommon Stock2003-09-124S010011.21D490050ITrustCommon Stock2003-09-124S010011.20D489950ITrustCommon Stock2003-09-154S010011.27D489850ITrustCommon Stock2003-09-154S030011.26D489550ITrustCommon Stock2003-09-154S030011.25D489250ITrustCommon Stock2003-09-154S020011.24D489050ITrustCommon Stock2003-09-154S011011.23D488940ITrustCommon Stock2003-09-154S020011.22D488740ITrustCommon Stock2003-09-154S010011.21D488640ITrustCommon Stock2003-09-154S0190911.20D486731ITrustCommon Stock1396531ITechnogenCommon Stock865DGordon Ringold and Tanya Zarucki 1999 TrustConsists of 1,333,333 shares of Maxygen common stock held by Technogen Associates, L.P. and 63,198 shares held by Technogen Enterprises, L.L.C. Technogen Managers, L.L.C. is the general partner of Technogen Associates , L.P. Dr. Ringold is a Managing Member of Technogen Enterprises, L.L.C. and Technogen Managers, L.L.C. and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest in the limited liability companies.Paul Quinlan - Attorney-in-fact2003-09-15