| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Lowsley Denise | Executive Vice President | C/O THE HANOVER INSURANCE GROUP, INC., 440 LINCOLN STREET, WORCESTER | /s/ Lindsay L. Katz pursuant to Confirming Statement | 05 Aug 2025 | 0001572984 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | THG | Common Stock | Options Exercise | $666,906 | +5,626 | +110% | $118.54 | 10,745 | 01 Aug 2025 | Direct | F1 |
| transaction | THG | Common Stock | Sale | $946,012 | -5,626 | -52% | $168.15 | 5,119 | 01 Aug 2025 | Direct | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | THG | Common Stock Option (right to buy) | Options Exercise | $0 | -5,626 | -100% | $0.000000 | 0 | 01 Aug 2025 | Common Stock | 5,626 | $118.54 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Includes 73 shares acquired pursuant to The Hanover Insurance Group Inc.'s 2023 Employee Stock Purchase Plan on June 30, 2025. |
| F2 | The option, representing the right to purchase a total of 5,626 shares, vested 1/3 on each of 2/28/21, 2/28/22 and 2/28/23. |