| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 09/29/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 37.547 | $0.00 | $0 | | 09/29/2023 |
| 06/30/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 36.605 | $0.00 | $0 | | 06/30/2023 |
| 03/31/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 31.996 | $0.00 | $0 | | 03/31/2023 |
| 02/28/2023 | HANOVER INSURANCE GROUP, INC. | THG | Payment of Exercise | Common Stock | 1.5k | $139.48 | $211.5k | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 7.9k | $140.01 | $1.1M | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 2.1k | $0.00 | $0 | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 1.5k | $0.00 | $0 | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 1.8k | $0.00 | $0 | | 02/27/2023 |
| 12/30/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 29.038 | $0.00 | $0 | | 12/30/2022 |
| 09/30/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 28.188 | $0.00 | $0 | | 09/30/2022 |
| 06/24/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 24.282 | $0.00 | $0 | | 06/24/2022 |
| 03/25/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 23.869 | $0.00 | $0 | | 03/25/2022 |
| 03/07/2022 | HANOVER INSURANCE GROUP, INC. | THG | Payment of Exercise | Common Stock | 1.9k | $139.52 | $261.3k | | 03/07/2022 |
| 03/02/2022 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 5.9k | $66.14 | $391k | | 03/02/2022 |
| 03/02/2022 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 3.3k | $54.61 | $182.5k | | 03/02/2022 |
| 03/02/2022 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 5.9k | $141.03 | $833.7k | | 03/02/2022 |
| 03/02/2022 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 3.3k | $141.16 | $471.6k | | 03/02/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 2.2k | $0.00 | $0 | | 02/28/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 1.2k | $0.00 | $0 | | 02/28/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 1.6k | $0.00 | $0 | | 02/28/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 7.9k | $139.51 | $1.1M | | 02/28/2022 |
| 12/30/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 26.256 | $0.00 | $0 | | 12/30/2021 |
| 09/24/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 24.13 | $0.00 | $0 | | 09/24/2021 |
| 08/06/2021 | HANOVER INSURANCE GROUP, INC. | THG | Exercise | Common Stock Option (right to buy) | 2.5k | $54.61 | $136.5k | | 08/06/2021 |
| 08/06/2021 | HANOVER INSURANCE GROUP, INC. | THG | Sale | Common Stock | 2.5k | $137.34 | $343.4k | | 08/06/2021 |
| 06/25/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 23.129 | $0.00 | $0 | | 06/25/2021 |
| 03/26/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 24.243 | $0.00 | $0 | | 03/26/2021 |
| 03/01/2021 | HANOVER INSURANCE GROUP, INC. | THG | Payment of Exercise | Common Stock | 1.3k | $119.67 | $155.2k | | 02/26/2021 |
| 02/26/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 8.6k | $115.35 | $997.5k | | 02/26/2021 |
| 02/26/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 4.3k | $0.00 | $0 | | 02/26/2021 |
| 02/26/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 1.6k | $0.00 | $0 | | 02/26/2021 |
| 12/30/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 17.788 | $0.00 | $0 | | 12/30/2020 |
| 09/25/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 21.022 | $0.00 | $0 | | 09/25/2020 |
| 06/26/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 19.734 | $0.00 | $0 | | 06/26/2020 |
| 03/27/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 20.609 | $0.00 | $0 | | 03/27/2020 |
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