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AMERICAN SUPERCONDUCTOR CORP /DE/ — 424B3 Filings

2 424B3 filings on record

This page lists all 424B3 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 2 424B3 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
424B3 PROSPECTUS SUPPLEMENT 0001193125-12-334730 Aug 3, 2012
424B3 424(B)(3) 0001193125-12-318827 Jul 27, 2012