HANOVER INSURANCE GROUP, INC.

Code

S

Shares

61

Price

$194.77

Footnotes

6

Pursuant to a pre-established Rule 10b5-1 Trading Plan, adopted on November 19, 2025, the Reporting Person's options were "net exercised". Accordingly, a total of 24,766 shares were withheld by the Company to satisfy the exercise price and taxes associated with the exercises, resulting in a net issuance of 8,358 shares, which were subsequently sold in accordance with the terms of the Rule 10b5-1 Trading Plan. Does not include 14,454 shares held by the Reporting Person's spouse. The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $192.70 to $193.69. The Reporting Person undertakes to provide The Hanover Insurance Group, Inc. ("THG"), any security holder of THG, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $193.73 to $194.72. The Reporting Person undertakes to provide THG, any security holder of THG, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. The option, representing the right to purchase a total of 27,292 shares, vested 1/3 on each of 2/24/18, 2/24/19 and 2/24/20. The option, representing the right to purchase a total of 72,078 shares, vested 1/3 on each of 2/27/19, 2/27/20 and 2/27/21.