0001057352-07-000049 8-K 3 20070607 5.02 9.01 20070613 20070613 COSTAR GROUP INC 0001057352 7389 522091509 1231 8-K 34 000-24531 07916858 2 BETHESDA METRO CENTER 10TH FLOOR BETHESDA MD 20814 3012158300 2 BETHESDA METRO CENTER 10TH FLOOR BETHESDA MD 20814 8-K 1 form_8k.htm CURRENT REPORT, ITEMS 5.02, 9.01 EX-99.1 2 stockplan_2007.htm 2007 COSTAR STOCK PLAN GRAPHIC 3 costar_logo.jpg LOGO