| Date | Name | Title | Type | Security | Shares | Price | Value | Ownership | Reported |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Common Stock | 8.8k | $52.00 | $459.6k | | 05/14/2010 |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Non-Qualified Stock Option (right to buy) | 4k | $27.96 | $111.8k | | 05/14/2010 |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Non-Qualified Stock Option (right to buy) | 5k | $28.73 | $143.6k | | 05/14/2010 |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Non-Qualified Stock Option (right to buy) | 5k | $34.07 | $170.4k | | 05/14/2010 |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Non-Qualified Stock Option (right to buy) | 5k | $37.99 | $190k | | 05/14/2010 |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Non-Qualified Stock Option (right to buy) | 5k | $39.38 | $196.9k | | 05/14/2010 |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Non-Qualified Stock Option (right to buy) | 5k | $40.23 | $201.2k | | 05/14/2010 |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Non-Qualified Stock Option (right to buy) | 5k | $40.95 | $204.8k | | 05/14/2010 |
| 05/14/2010 | Tallett Elizabeth E | Director | Disposition | Stock Units | 4.2k | $0.00 | $0 | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | | 3.2k | $52.00 | $167.2k | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | Common Stock | 7.7k | $52.00 | $401.7k | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | Non-Qualified Stock Option (right to buy) | 11k | $35.97 | $395.7k | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | Non-Qualified Stock Option (right to buy) | 2k | $36.18 | $72.4k | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | Non-Qualified Stock Option (right to buy) | 17k | $41.13 | $699.2k | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | Non-Qualified Stock Option (right to buy) | 12k | $42.51 | $510.1k | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | Non-Qualified Stock Option (right to buy) | 10k | $45.04 | $450.4k | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | Performance Shares | 2.5k | $0.00 | $0 | | 05/14/2010 |
| 05/14/2010 | WIRTJES SEAN M | VP, Finance and Treasurer | Disposition | Performance Shares | 3.6k | $0.00 | $0 | | 05/14/2010 |
| 05/14/2010 | TREDGER GORDON | VP, Analytical Instruments | Disposition | | 2.1k | $52.00 | $110.9k | | 05/14/2010 |
| 05/14/2010 | TREDGER GORDON | VP, Analytical Instruments | Disposition | Common Stock | 1.2k | $52.00 | $62.5k | | 05/14/2010 |
| 05/14/2010 | TREDGER GORDON | VP, Analytical Instruments | Disposition | Non-Qualified Stock Option (right to buy) | 8k | $35.97 | $287.8k | | 05/14/2010 |
| 05/14/2010 | TREDGER GORDON | VP, Analytical Instruments | Disposition | Non-Qualified Stock Option (right to buy) | 1.7k | $39.58 | $65.9k | | 05/14/2010 |
| 05/14/2010 | TREDGER GORDON | VP, Analytical Instruments | Disposition | Non-Qualified Stock Option (right to buy) | 4.7k | $45.04 | $210.2k | | 05/14/2010 |
| 05/14/2010 | TREDGER GORDON | VP, Analytical Instruments | Disposition | Performance Shares | 2k | $0.00 | $0 | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | | 7k | $52.00 | $363.9k | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | Common Stock | 19k | $52.00 | $989.7k | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | Non-Qualified Stock Option (right to buy) | 24k | $35.97 | $863.3k | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | Non-Qualified Stock Option (right to buy) | 5k | $38.14 | $190.7k | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | Non-Qualified Stock Option (right to buy) | 25k | $41.88 | $1M | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | Non-Qualified Stock Option (right to buy) | 30k | $42.51 | $1.3M | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | Non-Qualified Stock Option (right to buy) | 30k | $45.04 | $1.4M | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | Performance Shares | 5k | $0.00 | $0 | | 05/14/2010 |
| 05/14/2010 | ODONOGHUE MARTIN | Sr. VP Scientific Instruments | Disposition | Performance Shares | 7.5k | $0.00 | $0 | | 05/14/2010 |
| 05/14/2010 | MCCLAMMY G EDWARD | Senior VP and CFO | Disposition | | 4.4k | $52.00 | $227.6k | | 05/14/2010 |
| 05/14/2010 | MCCLAMMY G EDWARD | Senior VP and CFO | Disposition | Common Stock | 1.1k | $52.00 | $56.4k | | 05/14/2010 |
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