X0306 4 2013-03-20 0001177648 ENANTA PHARMACEUTICALS INC ENTA 0001133921 SCHUHSLER HELMUT C/O TVM CAPITAL MAXIMILIANSTRASSE 35C MUNICH 2M 80539 GERMANY 1 0 1 0 Common Stock Option (right to buy) 14.00 2013-03-20 4 A 0 5800 0 A 2023-03-20 Common Stock 5800 5800 D Such option will become exercisable monthly in substantially equal installments (any fractional shares to be cumulated and to become exercisable at the end of the earliest succeeding monthly period in which a whole share equivalent is accumulated) over three years, beginning from the annual meeting of stockholders held on November 8, 2012. Rolf Starck by power of attorney for Helmut Schuhsler 2013-03-22