| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Meyer Robert Joseph | SVP & Chief Accounting Officer | 222 BERKELEY STREET, BOSTON | /s/ Marina A. Breed, as attorney-in-fact | 03 Mar 2026 | 0001363889 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMT | Common Stock | Sale | $831,695 | -4,454 | -15% | $186.73 | 24,461 | 27 Feb 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Includes 121 shares acquired under the issuer's employee stock purchase plan in May 2025. |