0001950047-24-009137.txt : 20241126 0001950047-24-009137.hdr.sgml : 20241126 20241126161709 ACCESSION NUMBER: 0001950047-24-009137 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20241126 DATE AS OF CHANGE: 20241126 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: COSTAR GROUP, INC. CENTRAL INDEX KEY: 0001057352 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-BUSINESS SERVICES, NEC [7389] ORGANIZATION NAME: 07 Trade & Services IRS NUMBER: 522091509 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 000-24531 FILM NUMBER: 241504047 BUSINESS ADDRESS: STREET 1: 1331 L STREET, NW CITY: WASHINGTON STATE: DC ZIP: 20005 BUSINESS PHONE: 2023466500 MAIL ADDRESS: STREET 1: 1331 L STREET, NW CITY: WASHINGTON STATE: DC ZIP: 20005 FORMER COMPANY: FORMER CONFORMED NAME: COSTAR GROUP INC DATE OF NAME CHANGE: 19990805 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: DESMARAIS MICHAEL J CENTRAL INDEX KEY: 0001925959 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O COSTAR GROUP, INC. STREET 2: 1331 L STREET NW CITY: WASHINGTON STATE: DC ZIP: 20005 144 1 primary_doc.xml 144 0001925959 XXXXXXXX LIVE 0001057352 COSTAR GROUP, INC. 000-24531 1331 L Street, NW Washington DC 20005 (202) 346-6500 MICHAEL DESMARAIS Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

5500 439323.50 409959517 11/26/2024 NASDAQ Common 03/15/2024 Restricted Stock Issuer N 4043 03/15/2024 Not Applicable Common 03/01/2024 Restricted Stock Issuer N 1457 03/01/2024 Not Applicable Y 11/26/2024 /s/ Michael Joseph Desmarais