| 2025-02-27 | AMT | SVP & Chief Accounting Officer | Sell | 5,663 | $201.67 | $1,142,057.90 | -9.3% | → |
| 2022-03-15 | AMT | SVP & Chief Accounting Officer | Sell | 2,800 | $235.76 | $660,119.40 | -4.9% | → |
| 2021-07-30 | AMT | SVP & Chief Accounting Officer | Sell | 5,289 | $284.89 | $1,506,801.09 | -8.7% | → |
| 2020-12-10 | AMT | SVP, Chief Accounting Officer | Sell | 1,100 | $220.21 | $242,231.00 | -3.6% | → |
| 2020-05-08 | AMT | SVP, Chief Accounting Officer | Sale+OE | 6,439 | $238.11 | $1,533,163.95 | -9.4% | → |
| 2019-11-06 | AMT | SVP, Finance & Corp Controller | Sell | 1,000 | $206.78 | $206,780.00 | -3.4% | → |
| 2019-05-15 | AMT | SVP, Finance & Corp Controller | Sale+OE | 44,168 | $198.33 | $8,759,929.17 | -18.9% | → |
| 2018-11-07 | AMT | SVP, Finance & Corp Controller | Sale+OE | 44,959 | $156.43 | $7,033,078.13 | -26.6% | → |
| 2017-05-01 | AMT | SVP, Finance & Corp Controller | Sale+OE | 40,653 | $126.16 | $5,128,694.37 | -45.4% | → |