FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * YUREK GREGORY J   2. Issuer Name and Ticker or Trading Symbol AMERICAN SUPERCONDUCTOR CORP /DE/ [AMSC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chairman, President and CEO (Last) (First) (Middle) TWO TECHNOLOGY DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 05/25/2006 (Street) WESTBOROUGH, MA 01581 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/25/2006   S   100 D $ 8.92 0 (1) D   Common Stock 05/25/2006   S   1,800 D $ 8.98 0 (1) D   Common Stock 05/25/2006   S   600 D $ 9 0 (1) D   Common Stock 05/25/2006   S   300 D $ 9.01 0 (1) D   Common Stock 05/25/2006   S   200 D $ 9.02 0 (1) D   Common Stock 05/25/2006   S   653 D $ 9.03 0 (1) D   Common Stock 05/25/2006   S   1,847 D $ 9.05 0 (1) D   Common Stock 05/25/2006   S   1,867 D $ 9.08 0 (1) D   Common Stock 05/25/2006   S   500 D $ 9.09 175,285 (1) D   Common Stock               8,340 I (2) By Family Common Stock               752 I (3) By 401(k) Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
YUREK GREGORY J TWO TECHNOLOGY DRIVE WESTBOROUGH, MA 01581	X		Chairman, President and CEO

Signatures

/s/ Gregory J. Yurek		05/25/2006
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Following all the transactions reported on this Form 4, the reporting person holds 175,285 directly. The sale was made solely to cover Mr. Yurek's tax liability due to be paid in May 2006 associated with the vesting in May of this year of a total of 13,000 shares of restricted common stock pursuant to restricted stock awards made to Mr. Yurek in May 2004 and May 2005.
(2)	The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
(3)	The reporting person holds 752 shares indirectly through the company's 401(k) plan as of March 31, 2006.

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