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WELLINGTON HG & CO INC
> AMSC
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 09/30/2010 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 0 | -101,130 | 0 | -2,699,000 | |
| 06/30/2010 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 101,130 | -945 | 2,699,000 | -251,000 | $26.69 |
| 03/31/2010 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 102,075 | 85,250 | 2,950,000 | 2,262,000 | $28.90 |
| 12/31/2009 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 16,825 | -1,300 | 688,000 | 80,000 | $40.89 |
| 09/30/2009 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 18,125 | 4,000 | 608,000 | 237,000 | $33.54 |
| 06/30/2009 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 14,125 | -41,766 | 371,000 | -596,000 | $26.27 |
| 03/31/2009 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 55,891 | -1,600 | 967,000 | 29,000 | $17.30 |
| 12/31/2008 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 57,491 | 57,491 | 938,000 | 938,000 | $16.32 |
| 09/30/2008 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 43,891 | -9,433 | 1,035,000 | -877,000 | $23.58 |
| 06/30/2008 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 53,324 | -21,300 | 1,912,000 | 181,000 | $35.86 |
| 03/31/2008 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 74,624 | -66,875 | 1,731,000 | -2,138,000 | $23.20 |
| 12/31/2007 | AMERICAN SUPERCONDUCTOR CORP /DE/ | AMSC | 141,499 | 141,499 | 3,869,000 | 3,869,000 | $27.34 |
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