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AMERICAN SUPERCONDUCTOR CORP /DE/ — 424B1 Filings

5 424B1 filings on record

This page lists all 424B1 filings submitted to the SEC by AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC), sorted by most recent first. Each row links to the full filing on EdgarLookup. AMERICAN SUPERCONDUCTOR CORP /DE/ has filed 5 424B1 documents with the SEC since 2007. To view all SEC filings by AMERICAN SUPERCONDUCTOR CORP /DE/, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-Q 10-Q/A 144 3 3/A 4 4/A 424B1 424B2 424B3 424B4 424B5 424B7 5 8-A12G 8-A12G/A 8-K 8-K/A ARS CORRESP CT ORDER D DEF 14A DEFA14A DEFR14A EFFECT FWP NT 10-K NT 10-Q POS AM POSASR PRE 14A S-1 S-3 S-3/A S-3ASR S-3MEF S-8 S-8 POS SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13G/A SD UPLOAD
Form Description Accession Number Filed Period
424B1 424(B)(1) 0001193125-07-158541 Jul 20, 2007
424B1 PROSPECTUS 0001193125-05-035526 Feb 24, 2005
424B1 FORM 424B (1) 0000927016-00-002937 Aug 14, 2000
424B1 FORM 424B1 0000927016-00-000721 Mar 1, 2000
424B1 AMERICAN SUPERCONDUCTOR 0000950135-98-002504 Apr 17, 1998