X0206 3/A 2019-02-11 2019-02-11 0 0001070336 ACHILLION PHARMACEUTICALS INC ACHN 0001766498 Di Donato Brian C/O ACHILLION PHARMACEUTICALS, INC. 1777 SENTRY PARKWAY W, BLDG 14, STE 200 BLUE BELL PA 19422 false true false false SVP, Chief Financial Officer Stock Options (Right to buy) 2.56 2028-08-07 Common Stock 200000.00 D This option was granted on August 7, 2018 and vests as to 25% of the original number of shares on the first anniversary of the grant date and as to an additional 6.25% of the original number of shares at the end of each successive three-month period thereafter. This Form 3/A amends and restates the Form 3 filed by the reporting person on February 11, 2019. /s/ Brian Di Donato 2019-11-01