SCHEDULE 13G/A Filing by The Vanguard Group for Hanover Insurance Group Inc/The

This filing is an amendment to a previous filing by The Vanguard Group, Inc. concerning their beneficial ownership of The Hanover Insurance Group, Inc. The amendment, dated March 27, 2026, indicates that The Vanguard Group, Inc. no longer holds or is deemed to hold beneficial ownership over certain securities. This change is due to an internal realignment effective January 12, 2026, where certain subsidiaries and business divisions now report beneficial ownership separately. These entities continue to pursue the same investment strategies. The filing explicitly states that The Vanguard Group, Inc. has 0 shares beneficially owned and 0% ownership, with no power to direct the receipt of dividends or sale proceeds from these securities. The previous ownership details are not fully provided in this summary, but the filing indicates a significant change in reporting due to the realignment.