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SC 13D

Beneficial Ownership Report

AMERICAN SUPERCONDUCTOR CORP /DE/ Filed 2011-04-11 Acc 0000935836-11-000072

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SC 13D Beneficial Ownership Report , amsc13d.htm

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2011-04-11 SC 13D Beneficial Ownership Report
2011-04-08 5 Annual Insider Trading Report
2011-04-06 4 10% owner bought 3,295,000 shares at an average $15.22 ($50,135,650)
2011-04-05 8-K Results of operations

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