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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
880807	American Superconductor Corp	AMSC	Motors & Generators (3621)	042959321

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1195842	A David Henry	C/O American Superconductor 64 Jackson Road Devens MA 01434	Svp, Cfo & Treasurer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2010-07-12	7,500	$28.15	67,550	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	574	Indirect	By 401(k) Plan

Footnotes

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 Plan. The primary purpose of such sales was to pay personal income taxes that were due upon the vesting of restricted stock on July 9, 2010.
The disposition transaction was executed in multiple trades at prices ranging from $27.77-$28.64. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and price at which the transaction was effected.
Following all the transactions reported on this Form 4, the reporting person holds 67,550 shares directly.
Following all the transactions reported on this Form 4, the reporting person holds 574 shares indirectly through the company's 401(k) plan as of June 30, 2010.