Costar Group, Inc. SEC filings CSGP

Costar Group, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Jun 7, 2011. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 28, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 27, 2026 (material agreement, results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.

Form Description Filed Period
ARS Annual report to shareholders Apr 30, 2026 Dec 31, 2025
10-K Annual report Feb 26, 2026 Dec 31, 2025
ARS Annual report to shareholders Apr 30, 2025 Dec 31, 2024
10-K Annual report Feb 20, 2025 Dec 31, 2024
ARS Annual report to shareholders Apr 26, 2024 Dec 31, 2023
10-K Annual report Feb 22, 2024 Dec 31, 2023
ARS Annual report to shareholders Apr 27, 2023 Dec 31, 2022
10-K Annual report Feb 22, 2023 Dec 31, 2022
10-K Annual report Feb 23, 2022 Dec 31, 2021
10-K Annual report Feb 24, 2021 Dec 31, 2020
10-K Annual report Feb 26, 2020 Dec 31, 2019
10-K Annual report Feb 28, 2019 Dec 31, 2018
10-K Annual report Feb 23, 2018 Dec 31, 2017
10-K Annual report Feb 24, 2017 Dec 31, 2016
10-K Annual report Feb 26, 2016 Dec 31, 2015
ARS Annual report to shareholders Jun 12, 2015 Dec 31, 2014
10-K Annual report Feb 26, 2015 Dec 31, 2014
ARS Annual report to shareholders May 27, 2014 Dec 31, 2013
10-K Annual report Feb 20, 2014 Dec 31, 2013
ARS Annual report to shareholders May 30, 2013 Dec 31, 2012
10-K Annual report Mar 1, 2013 Dec 31, 2012
ARS Annual report to shareholders Jun 1, 2012 Dec 31, 2011
10-K Annual report Feb 23, 2012 Dec 31, 2011

Showing 23 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

Company profile

Industry
Services-Business Services, NEC (SIC 7389)
Listed as
CSGP (Nasdaq)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
Arlington, VA
SEC filer status
Large accelerated filer
SEC CIK
1057352
Former names
COSTAR GROUP, INC. (until Oct 28, 2026); COSTAR GROUP INC (until Jun 25, 2019); REALTY INFORMATION GROUP INC (until May 5, 1999)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.