This excerpt taken from the AMGN DEF 14A filed Mar 22, 2006.
Company executives exercise wide discretion over the use of corporate resources for political purposes. In 2003 - 04, the last fully reported election cycle, Amgen contributed at least $399,000. (Political Money Line: http://politicalmoneyline.com/)
Relying only on the limited data available from the Federal Election Commission and the Internal Revenue Service, the Center for Public Integrity, a leading campaign finance watchdog organization, provides an incomplete picture of the Companys political donations. Complete disclosure by the company is necessary for the companys Board and its shareholders to be able to fully evaluate the political use of corporate assets.