| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kalathur Rajesh | Director | 222 BERKELEY STREET, BOSTON | /s/ Marina A. Breed, as attorney-in-fact | 12 Mar 2026 | 0001555586 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMT | Common Stock | Award | +1,209 | +114% | $0.000000* | 2,265 | 10 Mar 2026 | Direct | F1 | |
| transaction | AMT | Common Stock | Purchase | $494,936 | +2,671 | +118% | $185.30 | 4,936 | 10 Mar 2026 | Direct | |
| holding | AMT | Common Stock | 171 | 10 Mar 2026 | By Trust | F2 |
| Id | Content |
|---|---|
| F1 | These restricted stock units ("RSUs") were granted pursuant to the 2007 Equity Incentive Plan, as amended, and vest on March 10, 2027. Each RSU represents a contingent right to receive one share of Common Stock. |
| F2 | The reporting person disclaims beneficial ownership in shares held by the reporting person's spouse's revocable trust. |