WORCESTER, Mass., July 18, 2024 /PRNewswire/ -- The Hanover Insurance Group, Inc. (NYSE: THG) today announced a preliminary estimate for second quarter catastrophe losses(1) of $157.1 million, before taxes, or 10.7 points of net earned premium. The losses primarily resulted from severe convective storm activity and mostly impacted the company's Personal Lines business. "The property and casualty insurance industry sustained very significant catastrophe losses in the second quarter, including the highest CAT ...