| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Roche John C | President and CEO, Director | C/O THE HANOVER INSURANCE GROUP, INC., 440 LINCOLN STREET, WORCESTER | /s/ Lindsay L. Katz pursuant to Confirming Statement | 02 Mar 2026 | 0001428157 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | THG | Common Stock | Tax liability | $2,568,559 | -14,220 | -9.2% | $180.63 | 140,858 | 27 Feb 2026 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents shares that were forfeited to pay withholding taxes upon the vesting of restricted stock units that were previously granted by the Issuer and vested on February 27, 2026. In connection with vesting, any fractional shares were rounded up to the next whole share in accordance with the terms of the award agreement. |
| F2 | Does not include 14,454 shares held by the Reporting Person's spouse. |