# Filing Detail

Form ARS - Annual Report to Security Holders:
SEC Accession No. 0001193125-26-197274
Filing Date
2026-04-30
Accepted
2026-04-30 16:09:47
Documents
1
Period of Report
2025-12-31
Effectiveness Date
2026-04-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | ARS | d903162dars.pdf | ARS | 1462436
| Complete submission text file | 0001193125-26-197274.txt |  | 2015739

Mailing Address 1201 WILSON BLVD. ARLINGTON VA 22209
Business Address 1201 WILSON BLVD. ARLINGTON VA 22209 2023466500
COSTAR GROUP, INC. (Filer) CIK: 0001057352 (see all company filings)

EIN.: 522091509 | State of Incorp.: DE | Fiscal Year End: 1231
Type: ARS | Act: 34 | File No.: 000-24531 | Film No.: 26925338
SIC: 7389 Services-Business Services, NEC
(CF Office: 07 Trade & Services)