Capital World Investors Acquires 5.5% Stake in Amgen Inc. (AMGN)

Capital World Investors (CWI) has filed a Schedule 13G disclosing a new substantial position in Amgen Inc. (AMGN). As of March 31, 2026, CWI beneficially owns 29,596,119 shares of common stock, representing a 5.5% stake in the company. This filing marks a significant increase from a previously reported 0.0% position. CWI, a division of Capital Research and Management Company (CRMC), reported sole dispositive power over all 29,596,119 shares and sole voting power over 29,296,381 shares. The filing indicates that the securities were acquired in the ordinary course of business and are not held for the purpose of changing or influencing the control of the issuer. The total value of the holding is estimated at approximately $9.95 billion based on the reporting date. This institutional investment underscores a major commitment to Amgen by one of the world's largest investment management groups.