| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| ATW | Director | Dec 15, 2010 | Option Exercise | $12.48 | 8,000 | 99,800 | 38,886 | Dec 16, 2010, 11:59 AM |
| ATW | Director | Dec 15, 2010 | Sale | $37.00 | 8,000 | 296,000 | 30,886 | Dec 16, 2010, 11:59 AM |
| Symbol | Relationship | Date | Transaction | Value($) |
| ATW | Director | Dec 15, 2010 | Option Exercise | 99,800 |
| ATW | Director | Dec 15, 2010 | Sale | 296,000 |