X0305 4 2012-04-09 0 0000881464 AMYLIN PHARMACEUTICALS INC AMLN 0001264152 SULLIVAN JOSEPH P 9360 TOWNE CENTRE DR SAN DIEGO CA 92121 1 0 0 0 Phantom Stock-Deferred Compensation 2012-04-09 2012-04-11 4 A 0 872.6 23.6368 A Common Stock 872.6 25863.8 D The shares of phantom stock will be distributed to the reporting person in the form of Amylin common stock in a lump sum on the earlier of a) six months following the date on which the reporting person no longer serves on Amylin's Board of Directors or b) when the reporting person reaches the age 70. This amount has been rounded to account for fractional shares purchased by the reporting person. By: James R. Oehler, Attorney-in-Fact For: Joseph P. Sullivan 2012-04-13