Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001717178-26-000008
Filing Date
2026-03-17
Accepted
2026-03-17 16:12:44
Documents
1
Period of Report
2026-03-15

Document Format Files

Seq Description Document Type Size
1 FORM 4 wk-form4_1773778361.html 4  
1 FORM 4 wk-form4_1773778361.xml 4 3290
  Complete submission text file 0001717178-26-000008.txt   4792
Mailing Address 1201 WILSON BLVD. ARLINGTON VA 22209
Business Address 1201 WILSON BLVD. ARLINGTON VA 22209 2023466500
COSTAR GROUP, INC. (Issuer) CIK: 0001057352 (see all company filings)

EIN.: 522091509 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 7389 Services-Business Services, NEC
(CF Office: 07 Trade & Services)

Mailing Address C/O COSTAR GROUP, INC. 1201 WILSON BLVD. ARLINGTON VA 22209
Business Address
Ruggles Lisa (Reporting) CIK: 0001717178 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-24531 | Film No.: 26762028