| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 09/29/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 16.232 | $0.00 | $0 | | 09/29/2023 |
| 06/30/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 15.824 | $0.00 | $0 | | 06/30/2023 |
| 03/31/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 13.832 | $0.00 | $0 | | 03/31/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 956 | $0.00 | $0 | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 701 | $0.00 | $0 | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 715 | $0.00 | $0 | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Payment of Exercise | Common Stock | 752 | $139.48 | $104.9k | | 02/27/2023 |
| 02/27/2023 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 3.2k | $140.01 | $443.8k | | 02/27/2023 |
| 12/30/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 13.193 | $0.00 | $0 | | 12/30/2022 |
| 09/30/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 12.807 | $0.00 | $0 | | 09/30/2022 |
| 06/24/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 11.032 | $0.00 | $0 | | 06/24/2022 |
| 03/25/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 10.845 | $0.00 | $0 | | 03/25/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 3.3k | $139.51 | $458.3k | | 02/28/2022 |
| 02/28/2022 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 672 | $0.00 | $0 | | 02/28/2022 |
| 12/30/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 8.458 | $0.00 | $0 | | 12/30/2021 |
| 09/24/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 7.773 | $0.00 | $0 | | 09/24/2021 |
| 06/25/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 7.451 | $0.00 | $0 | | 06/25/2021 |
| 03/26/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 7.809 | $0.00 | $0 | | 03/26/2021 |
| 03/01/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 759 | $0.00 | $0 | | 02/26/2021 |
| 02/26/2021 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 4.2k | $115.35 | $481.6k | | 02/26/2021 |
| 12/30/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 4.217 | $0.00 | $0 | | 12/30/2020 |
| 09/25/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 4.984 | $0.00 | $0 | | 09/25/2020 |
| 06/30/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 183 | $91.20 | $16.7k | | 06/30/2020 |
| 06/26/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 4.678 | $0.00 | $0 | | 06/26/2020 |
| 03/27/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 4.885 | $0.00 | $0 | | 03/27/2020 |
| 02/28/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock Option (right to buy) | 5.6k | $118.54 | $666.9k | | 02/28/2020 |
| 02/28/2020 | HANOVER INSURANCE GROUP, INC. | THG | Grant | Common Stock | 685 | $0.00 | $0 | | 02/28/2020 |
| 05/23/2019 | NAVIGATORS GROUP INC | NAVG | Disposition | | 26.4k | $70.00 | $1.8M | | 05/23/2019 |
| 05/23/2019 | NAVIGATORS GROUP INC | NAVG | Disposition | Performance Units | 6.5k | $0.00 | $0 | | 05/23/2019 |
| 05/23/2019 | NAVIGATORS GROUP INC | NAVG | Disposition | Restricted Stock Units | 1.2k | $0.00 | $0 | | 05/23/2019 |
| 03/06/2019 | NAVIGATORS GROUP INC | NAVG | Grant | Restricted Stock Units | 1.2k | $0.00 | $0 | | 03/06/2019 |
| 02/28/2019 | NAVIGATORS GROUP INC | NAVG | Grant | Common Stock | 4.7k | $0.00 | $0 | | 02/28/2019 |
| 02/28/2019 | NAVIGATORS GROUP INC | NAVG | Payment of Exercise | Common Stock | 2.1k | $69.78 | $147.9k | | 02/28/2019 |
| 03/08/2018 | NAVIGATORS GROUP INC | NAVG | Grant | Performance Units | 3k | $0.00 | $0 | | 03/08/2018 |
| 03/05/2018 | NAVIGATORS GROUP INC | NAVG | Exercise | Performance Units | 6k | $0.00 | $0 | | 03/05/2018 |
|