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| Latest Insider Trading | Top Insider Trading Recent Week | Top 10% Owner Trading Recent Week | Filter
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| Ticker | Owner | Relationship | Date | Transaction | Cost |
#Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 11 '10 | Option Exercise | 9.26 | 71,372 | 660,905 | 265,884 | Oct 13 05:17 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 12 '10 | Option Exercise | 13.62 | 165,228 | 2,250,806 | 330,768 | Oct 13 05:17 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 13 '10 | Option Exercise | 12.80 | 15,992 | 204,698 | 210,504 | Oct 13 05:17 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 13 '10 | Sale | 38.81 | 15,992 | 620,608 | 194,512 | Oct 13 05:17 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 12 '10 | Sale | 37.68 | 165,228 | 6,225,339 | 194,512 | Oct 13 05:17 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 11 '10 | Sale | 36.55 | 71,372 | 2,608,383 | 194,512 | Oct 13 05:17 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 08 '10 | Option Exercise | 9.26 | 73,856 | 683,907 | 268,368 | Oct 08 05:21 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 06 '10 | Option Exercise | 3.53 | 57,074 | 201,471 | 251,586 | Oct 08 05:21 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 06 '10 | Sale | 36.01 | 57,074 | 2,054,995 | 194,512 | Oct 08 05:21 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Oct 08 '10 | Sale | 36.56 | 73,856 | 2,699,828 | 194,512 | Oct 08 05:21 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Sep 15 '10 | Option Exercise | 14.55 | 6,872 | 99,988 | 194,512 | Sep 16 10:58 AM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Feb 04 '10 | Sale | 32.39 | 7,500 | 242,924 | 169,640 | Feb 08 04:36 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Jan 05 '10 | Option Exercise | 32.56 | 124,697 | 4,060,508 | 301,837 | Jan 07 05:00 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Jan 06 '10 | Option Exercise | 32.56 | 125,303 | 4,080,242 | 302,443 | Jan 07 05:00 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Jan 06 '10 | Sale | 43.18 | 125,303 | 5,411,185 | 177,140 | Jan 07 05:00 PM |
| AMSC | YUREK GREGORY J | Chairman and CEO | Jan 05 '10 | Sale | 42.60 | 124,697 | 5,311,618 | 177,140 | Jan 07 05:00 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jan 04 '10 | Option Exercise | 32.56 | 117,025 | 3,810,685 | 302,140 | Jan 04 05:56 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Dec 30 '09 | Option Exercise | 32.56 | 7,975 | 259,690 | 185,115 | Jan 04 05:56 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Dec 30 '09 | Sale | 42.05 | 7,975 | 335,349 | 294,165 | Jan 04 05:56 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jan 04 '10 | Sale | 42.06 | 117,025 | 4,921,671 | 177,140 | Jan 04 05:56 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Dec 01 '09 | Option Exercise | 3.53 | 15,000 | 52,950 | 0 | Dec 02 04:36 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Dec 01 '09 | Sale | 34.47 | 15,000 | 517,062 | 0 | Dec 02 04:36 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Nov 02 '09 | Option Exercise | 6.98 | 15,000 | 104,627 | 0 | Nov 03 05:23 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Nov 02 '09 | Sale | 32.91 | 15,000 | 493,691 | 0 | Nov 03 05:23 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Oct 01 '09 | Option Exercise | 7.81 | 15,000 | 117,150 | 0 | Oct 02 04:41 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Oct 01 '09 | Sale | 32.08 | 15,000 | 481,162 | 0 | Oct 02 04:41 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Sep 01 '09 | Option Exercise | 7.81 | 7,925 | 61,894 | 0 | Sep 03 04:33 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Sep 01 '09 | Sale | 31.53 | 15,000 | 473,011 | 0 | Sep 03 04:33 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Aug 27 '09 | Option Exercise | 17.28 | 17,357 | 299,972 | 184,215 | Aug 27 04:46 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jul 30 '09 | Sale | 31.73 | 12,562 | 398,585 | 0 | Jul 31 04:39 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jul 27 '09 | Sale | 26.99 | 1,792 | 48,375 | 0 | Jul 29 04:46 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jul 27 '09 | Sale | 27.30 | 10,637 | 290,405 | 0 | Jul 29 04:45 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jul 27 '09 | Sale | 27.55 | 16,009 | 441,072 | 0 | Jul 29 04:40 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jul 01 '09 | Sale | 26.80 | 7,000 | 187,590 | 0 | Jul 02 04:09 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 24 '09 | Sale | 25.42 | 7,000 | 177,921 | 0 | Jun 26 04:10 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 10 '08 | Option Exercise | 25.62 | 13,930 | 356,956 | 0 | Jun 12 04:47 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 11 '08 | Option Exercise | 25.62 | 89,448 | 2,292,105 | 0 | Jun 12 04:47 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 12 '08 | Option Exercise | 25.62 | 17,720 | 454,075 | 0 | Jun 12 04:47 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 12 '08 | Sale | 45.00 | 17,720 | 797,400 | 209,858 | Jun 12 04:47 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 11 '08 | Sale | 45.00 | 89,448 | 4,025,270 | 0 | Jun 12 04:47 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 10 '08 | Sale | 42.57 | 75,649 | 3,220,267 | 0 | Jun 12 04:47 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 10 '08 | Sale | 42.46 | 44,301 | 1,881,071 | 0 | Jun 12 04:46 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 10 '08 | Option Exercise | 25.62 | 125,000 | 3,203,125 | 0 | Jun 12 04:45 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 10 '08 | Sale | 42.81 | 17,780 | 761,113 | 0 | Jun 12 04:45 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 04 '08 | Option Exercise | 9.43 | 31,814 | 300,011 | 209,858 | Jun 05 10:40 AM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 02 '08 | Option Exercise | 3.53 | 10,000 | 35,300 | 0 | Jun 04 04:39 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jun 02 '08 | Sale | 34.37 | 10,000 | 343,735 | 0 | Jun 04 04:39 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | May 28 '08 | Option Exercise | 15.19 | 43,417 | 659,504 | 0 | May 30 04:27 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | May 28 '08 | Sale | 35.00 | 43,417 | 1,519,595 | 178,044 | May 30 04:27 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | May 14 '08 | Option Exercise | 12.56 | 7,959 | 99,989 | 0 | May 16 04:13 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | May 08 '08 | Sale | 27.42 | 5,000 | 137,100 | 110,085 | May 09 04:47 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | May 01 '08 | Sale | 25.16 | 5,000 | 125,825 | 0 | May 02 04:35 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Apr 17 '08 | Sale | 27.00 | 12,775 | 344,964 | 0 | Apr 18 04:30 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Apr 18 '08 | Sale | 27.00 | 2,225 | 60,075 | 120,085 | Apr 18 04:30 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Apr 02 '08 | Sale | 25.00 | 5,000 | 125,000 | 135,085 | Apr 04 04:29 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Mar 19 '08 | Sale | 25.00 | 10,000 | 250,000 | 140,085 | Mar 21 02:58 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jan 02 '08 | Option Exercise | 7.81 | 5,000 | 39,050 | 0 | Jan 04 05:06 PM |
| AMSC | YUREK GREGORY J | Chairman, President and CEO | Jan 02 '08 | Sale | 27.82 | 10,000 | 278,195 | 0 | Jan 04 05:06 PM |
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