0001181431-06-038014 4 1 20060621 20060622 20060622 JOHNSTON RICHARD M 0001211913 4 34 000-51470 06920194 ONE SOUTH STREET SUITE 2150 BALTIMORE MD 21202 4108953800 AtriCure, Inc. 0001323885 3841 341940305 DE 1231 6033 SCHUMACHER PARK DRIVE WEST CHESTER OH 45069 513-755-4107 6033 SCHUMACHER PARK DRIVE WEST CHESTER OH 45069 4 1 rrd122210.xml FORM 4