Insider Buying and Selling - CSGP

Transaction	Filed	Name	Type	Shares @ Price	Value	Balance change		Ownership
08/07/2026	08/10/2026	Cann Cynthia Cammett Chief Accounting Officer Officer	Sell	-4,788 @ $30.78	($147,374.64)	18,822	(-20.28%)	Direct
08/05/2026	08/10/2026	Hill John W Director	Sell	-3,500 @ $30.21	($105,735.00)	22,993	(-13.21%)	Direct
08/04/2026	08/05/2026	Florance Andrew C Founder and CEO CEO Director	Buy	83,300 @ $29.89	$2,489,837.00	1,806,165	(4.83%)	Direct
05/01/2026	05/04/2026	Florance Andrew C President and CEO CEO Director	Buy	71,430 @ $35.20	$2,514,208.10	1,722,865	(4.33%)	Direct
03/06/2026	03/09/2026	Sams Louise S Director	Buy	1,000 @ $48.36	$48,360.00	20,409	(5.15%)	Direct
03/02/2026	03/03/2026	Glaser Rachel C Director	Buy	1,000 @ $44.94	$44,940.00	4,157	(31.68%)	Direct
03/02/2026	03/03/2026	Saint Frederick G. President, Marketplaces Officer	Buy	20,000 @ $45.33	$906,600.00	279,851	(7.70%)	Direct
02/27/2026	03/02/2026	Florance Andrew C President and CEO CEO Director	Buy	55,720 @ $44.52	$2,480,654.40	1,586,866	(3.64%)	Direct
11/13/2025	11/17/2025	Cann Cynthia Cammett Chief Accounting Officer Officer	Sell	-1,841 @ $68.79	($126,642.39)	23,211	(-7.35%)	Direct
11/13/2025	11/17/2025	Hill John W Director	Sell	-2,250 @ $68.68	($154,530.00)	18,231	(-10.99%)	Direct

Costar Group, Inc. - CSGP