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Filing metadata

Accession number: 0001104659-22-063844
Form type: Form 4
Filer: Amphastar Pharmaceuticals, Inc.
CIK: CIK 1297184
Filed: May 23, 2022
Reporting period: May 20, 2022
Description: Insider transaction

Documents

0001104659-22-063844-index.htm

Complete submission

0001104659-22-063844.txt

directory listing

Filed by

Amphastar Pharmaceuticals, Inc.