4
Changes in Ownership
AMERICAN SUPERCONDUCTOR CORP /DE/ Filed Acc 0001209191-10-043437
10% owner bought 200,000 shares at an average $28.29 ($5,657,600)
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| DOUGLAS KEVIN 10% owner | 2010-08-17 | Purchase | +32,000 | $28.64 | $916,480 | 2,141,328 | D |
| DOUGLAS KEVIN 10% owner | 2010-08-17 | Purchase | +26,400 | $28.64 | $756,096 | 1,444,330 | I |
| DOUGLAS KEVIN 10% owner | 2010-08-17 | Purchase | +13,600 | $28.64 | $389,504 | 806,832 | I |
| DOUGLAS KEVIN 10% owner | 2010-08-17 | Purchase | +8,000 | $28.64 | $229,120 | 490,010 | I |
| DOUGLAS KEVIN 10% owner | 2010-08-18 | Purchase | +28,000 | $28.32 | $792,960 | 2,169,328 | D |
| DOUGLAS KEVIN 10% owner | 2010-08-18 | Purchase | +23,100 | $28.32 | $654,192 | 1,467,430 | I |
| DOUGLAS KEVIN 10% owner | 2010-08-18 | Purchase | +11,900 | $28.32 | $337,008 | 818,732 | I |
| DOUGLAS KEVIN 10% owner | 2010-08-18 | Purchase | +7,000 | $28.32 | $198,240 | 497,010 | I |
| DOUGLAS KEVIN 10% owner | 2010-08-19 | Purchase | +20,000 | $27.68 | $553,600 | 2,189,328 | D |
| DOUGLAS KEVIN 10% owner | 2010-08-19 | Purchase | +16,500 | $27.68 | $456,720 | 1,483,930 | I |
| DOUGLAS KEVIN 10% owner | 2010-08-19 | Purchase | +8,500 | $27.68 | $235,280 | 827,232 | I |
| DOUGLAS KEVIN 10% owner | 2010-08-19 | Purchase | +5,000 | $27.68 | $138,400 | 502,010 | I |
| Open-market purchases · 200,000 sh · avg $28.29 · $5,657,600 | |||||||
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