Roche John C plan to sell securities of HANOVER INSURANCE GROUP, INC. under Form 144

Roche John C filed Form 144 to notify SEC of plan to sell 8358 units of HANOVER INSURANCE GROUP, INC. securities around 2026-05-20, with aggregate market value of $1,625,045.94. The total outstanding units is 34986787.0. The amount planned to be sold represents 0.02% of total outstanding units; Recent transactions in past 3 months include: On 05/18/2026, sold 5251 units for $1040036.44;