Cite Filings / AMSC / 0001193125-12-228542

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424B5

Prospectus

AMERICAN SUPERCONDUCTOR CORP /DE/ Filed 2012-05-11 Acc 0001193125-12-228542

Documents 1

424B5 Prospectus , d351931d424b5.htm

Around this filing

2012-05-11 4 SVP, CFO & Treasurer sold 2,200 shares at $4.12 ($9,064)
2012-05-11 424B5 Prospectus
2012-05-11 424B5 Prospectus
2012-05-10 4 Options or other derivatives
2012-05-10 4 Options or other derivatives
2012-05-10 4 Options or other derivatives
2010-11-09 424B5 Prospectus

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