BlackRock, Inc. Amendment to Schedule 13G for Amphastar Pharmaceuticals, Inc.

BlackRock, Inc. filed an amendment to its Schedule 13G for Amphastar Pharmaceuticals, Inc., reporting a decrease in its ownership. As of September 30, 2025, BlackRock owns 5,333,463 shares, representing 11.5% of the common stock. This is a decrease of 335,330 shares from the previous filing, reflecting a 5.9154% reduction in shares and a 2.5552% decrease in value. The filing indicates that BlackRock has sole voting power over 5,236,473 shares and sole dispositive power over all 5,333,463 shares. The amendment also includes certifications that the shares were acquired and are held in the ordinary course of business and not for the purpose of influencing control of the issuer.