| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMT | Common Stock | Award | $0 | +13,228 | +8.4% | $0.000000 | 170,930 | 24 Feb 2023 | Direct | F1, F2 |
| holding | AMT | Common Stock | 44,973 | 24 Feb 2023 | By trust | F3 |
| Id | Content |
|---|---|
| F1 | Reflects the number of performance-based restricted stock units ("PSUs") earned, as a result of the Compensation Committee's certification to the achievement of performance based on a three-year performance period, under the terms of a PSU award granted on March 10, 2020. These shares will vest three years from the grant date of such PSU award, and each PSU represents a contingent right to receive one share of Common Stock. |
| F2 | Includes 17 shares acquired under the issuer's employee stock purchase plan in November 2022. |
| F3 | The reporting person disclaims beneficial ownership in shares held by trust. |