Form 3/A - Initial statement of beneficial ownership of securities: [Amend]
SEC Accession No. 0001628280-26-023270
Filing Date
2026-04-02
Accepted
2026-04-02 16:49:58
Documents
1
Period of Report
2025-03-25

Document Format Files

Seq Description Document Type Size
1 FORM 3/A wk-form3a_1775162992.html 3/A  
1 FORM 3/A wk-form3a_1775162992.xml 3/A 2652
  Complete submission text file 0001628280-26-023270.txt   4145
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 ONE PROCTER & GAMBLE PLAZA CINCINNATI OH 45202
Business Address
McCarthy Christine M (Reporting) CIK: 0001332169 (see all company filings)

Type: 3/A | Act: 34 | File No.: 000-24531 | Film No.: 26834809