Primary IR Contact

Amgen Investor Relations
Mailstop 28-1-C
Phone: 805-447-1060
Fax: 805-499-0792
E-mail: investor.relations@amgen.com

Transfer Agent

American Stock Transfer and Trust Co.
59 Maiden Lane
New York, NY 10038
Phone: (212) 936-5100 or 800-937-5449
www.amstock.com