Shares in Hanover Insurance Group were little changed Tuesday after the Worcester insurer reported it expected Hurricane Sandy to cost the company $120 million to $140 million in losses after taxes — more than it earned through the first nine months of the year.

The company said in a statement late Tuesday that the losses were primarily on its commercial and personal insurance policies in New York and New Jersey, which were squarely in the center of the storm. Shares in the company closed Tuesday at $37.87, down 29 cents.