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| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 12/31/2010 | ARCH RESOURCES, INC. | ACI | 0 | -12,000 | 0 | -321,000 | |
| 09/30/2010 | ARCH RESOURCES, INC. | ACI | 12,000 | 2,000 | 321,000 | 123,000 | $26.75 |
| 06/30/2010 | ARCH RESOURCES, INC. | ACI | 10,000 | 0 | 198,000 | -31,000 | $19.80 |
| 03/31/2010 | ARCH RESOURCES, INC. | ACI | 10,000 | 10,000 | 229,000 | 229,000 | $22.90 |
| 09/30/2008 | ARCH RESOURCES, INC. | ACI | 0 | -55,000 | 0 | -4,127,000 | |
| 06/30/2008 | ARCH RESOURCES, INC. | ACI | 55,000 | -52,000 | 4,127,000 | -407,000 | $75.04 |
| 06/30/2006 | ARCH RESOURCES, INC. | ACI | 107,000 | 106,000 | 4,534,000 | 4,458,000 | $42.37 |
| 03/31/2006 | ARCH RESOURCES, INC. | ACI | 1,000 | -84,500 | 76,000 | -6,721,000 | $76.00 |
| 12/31/2005 | ARCH RESOURCES, INC. | ACI | 85,500 | -35,000 | 6,797,000 | 233,000 | $79.50 |
| 06/30/2005 | ARCH RESOURCES, INC. | ACI | 120,500 | 108,500 | 6,564,000 | 6,253,560 | $54.47 |
| 06/30/2001 | ARCH RESOURCES, INC. | ACI | 12,000 | 12,000 | 310,440 | 310,440 | $25.87 |
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