Amphastar Pharmaceuticals, Inc. (AMPH)

SEC filing

Amphastar Pharmaceuticals, Inc.

AMPH · CIK 1297184

4 · Aug 11, 2026 · PETERS WILLIAM J sold 8,180 shares at $22.48/share ($183.9K); exercised options for 5,053 shares

PETERS WILLIAM J sold 8,180 shares at $22.48/share ($183.9K); exercised options for 5,053 shares

xslF345X06/form4-08112026_080855.xml

xslF345X06/form4-08112026_080855.xmlSEC.gov

Graphics and non-inline formats (not embedded below).