| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 09/29/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 173.011 | $0.00 | $0 | | 09/29/2023 |
| 06/30/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 168.665 | $0.00 | $0 | | 06/30/2023 |
| 03/31/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 147.429 | $0.00 | $0 | | 03/31/2023 |
| 02/28/2023 | HANOVER INSURANCE GROUP, INC. | THG | Payment of Exercise | Common Stock | 10k | $139.48 | $1.4M | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 36.5k | $140.01 | $5.1M | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 8.8k | $0.00 | $0 | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 6.5k | $0.00 | $0 | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 8.2k | $0.00 | $0 | | 02/27/2023 |
| 02/24/2023 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 6.3k | $40.01 | $253.5k | | 02/24/2023 |
| 02/24/2023 | HANOVER INSURANCE GROUP, INC. | THG | Payment of Exercise | Common Stock | 3.3k | $139.34 | $463.4k | | 02/24/2023 |
| 12/30/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 130.851 | $0.00 | $0 | | 12/30/2022 |
| 09/30/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 127.025 | $0.00 | $0 | | 09/30/2022 |
| 06/24/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 109.425 | $0.00 | $0 | | 06/24/2022 |
| 04/21/2022 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 922 | $155.24 | $143.1k | | 04/21/2022 |
| 04/21/2022 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 922 | $40.01 | $36.9k | | 04/21/2022 |
| 03/29/2022 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 2.7k | $150.47 | $410k | | 03/25/2022 |
| 03/29/2022 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 2.7k | $40.01 | $109k | | 03/25/2022 |
| 03/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 4.5k | $150.09 | $680.4k | | 03/25/2022 |
| 03/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 4.5k | $40.01 | $181.4k | | 03/25/2022 |
| 03/25/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 107.564 | $0.00 | $0 | | 03/25/2022 |
| 03/17/2022 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 6.2k | $145.65 | $902k | | 03/17/2022 |
| 03/17/2022 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 1.1k | $146.21 | $155.7k | | 03/17/2022 |
| 03/17/2022 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 7.3k | $40.01 | $290.4k | | 03/17/2022 |
| 03/07/2022 | HANOVER INSURANCE GROUP, INC. | THG | Payment of Exercise | Common Stock | 7.6k | $139.52 | $1.1M | | 03/07/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 8.7k | $0.00 | $0 | | 02/28/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 4.9k | $0.00 | $0 | | 02/28/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 7.1k | $0.00 | $0 | | 02/28/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 34.7k | $139.51 | $4.8M | | 02/28/2022 |
| 12/30/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 115.022 | $0.00 | $0 | | 12/30/2021 |
| 09/24/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 105.711 | $0.00 | $0 | | 09/24/2021 |
| 08/09/2021 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 5k | $138.00 | $690k | | 08/06/2021 |
| 08/09/2021 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 5k | $34.66 | $173.3k | | 08/06/2021 |
| 08/06/2021 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 6.7k | $34.66 | $231.7k | | 08/06/2021 |
| 08/06/2021 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 6.7k | $136.06 | $909.4k | | 08/06/2021 |
| 06/25/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 101.325 | $0.00 | $0 | | 06/25/2021 |
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