X0202 4 2005-01-18 0000792013 HARLEYSVILLE GROUP INC HGIC 0001099303 PATKUS M LEE 355 MAPLE AVENUE HARLEYSVILLE PA 19438 0 1 0 0 President & COO Common Stock 2005-01-18 4 M 0 6000 16.687 A 57806 D Common Stock 2005-01-18 4 M 0 14038 16.3125 A 71844 D Common Stock 2005-01-18 4 F 0 16528 22.43 D 55883 D Stock Option-Right to Buy 16.687 2005-01-18 4 M 0 6000 0 D 2009-11-19 Common Stock 6000 87189 D Stock Option-Right to Buy 16.3125 2005-01-18 4 M 0 14038 0 D 2010-05-17 Common Stock 14038 73151 D The total includes 567.1536 shares acquired 1/14/05 under the Harleysville Group Inc. Employee Stock Purchase Plan. The option vested in two equal annual installments beginning November 19, 2000. The option vested in two equal annual installments beginning May 17, 2001. /s/ M. Lee Patkus 2005-01-20