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Amphastar Pharmaceuticals, Inc. — DRS/A Filings

3 DRS/A filings on record

This page lists all DRS/A filings submitted to the SEC by Amphastar Pharmaceuticals, Inc. (AMPH), sorted by most recent first. Each row links to the full filing on EdgarLookup. Amphastar Pharmaceuticals, Inc. has filed 3 DRS/A documents with the SEC since 2005. To view all SEC filings by Amphastar Pharmaceuticals, Inc., see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-Q 144 3 3/A 4 4/A 424B4 8-A12B 8-K 8-K/A ARS CERTNAS CORRESP CT ORDER DEF 14A DEFA14A DRS DRS/A DRSLTR EFFECT FWP PRE 14A REGDEX RW S-1 S-1/A S-1MEF S-3 S-8 SC 13G SC 13G/A SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
DRS/A — 0000912057-14-000162 May 14, 2014 —
DRS/A — 0000912057-14-000096 Apr 3, 2014 —
DRS/A — 0000912057-14-000038 Feb 7, 2014 —