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
8-K Current report
Material agreement, Results of operations, Regulation FD disclosure
 Oct 27, 2026 Oct 27, 2026
8-K Current report
Regulation FD disclosure
 Aug 21, 2026 Aug 21, 2026
8-K Current report
Results of operations
 Jul 28, 2026 Jul 28, 2026
8-K Current report
Officer or director change, Regulation FD disclosure
 Jul 13, 2026 Jul 7, 2026
8-K Current report
Officer or director change, Shareholder vote results, Regulation FD disclosure
 Jun 25, 2026 Jun 23, 2026
8-K Current report
Material agreement, Regulation FD disclosure
 May 29, 2026 May 28, 2026
8-K Current report
Results of operations, Regulation FD disclosure
 Apr 28, 2026 Apr 28, 2026
8-K Current report
Officer or director change, Regulation FD disclosure
 Mar 16, 2026 Mar 15, 2026
8-K Current report
Results of operations, Regulation FD disclosure
 Feb 24, 2026 Feb 24, 2026
8-K Current report
Officer or director change
 Feb 13, 2026 Feb 13, 2026
8-K Current report
Officer or director change, Regulation FD disclosure
 Jan 7, 2026 Jan 7, 2026
8-K Current report
Results of operations, Regulation FD disclosure
 Oct 28, 2025 Oct 28, 2025
8-K Current report
Regulation FD disclosure
 Aug 27, 2025 Aug 27, 2025
8-K Current report
Results of operations, Regulation FD disclosure
 Jul 22, 2025 Jul 22, 2025
8-K Current report
Officer or director change, Shareholder vote results
 Jun 27, 2025 Jun 26, 2025
8-K Current report
Material agreement, Regulation FD disclosure
 May 9, 2025 May 9, 2025
8-K Current report
Results of operations
 Apr 29, 2025 Apr 29, 2025
8-K Current report
Material agreement, Officer or director change, Regulation FD disclosure
 Apr 7, 2025 Apr 6, 2025
8-K Current report
Acquisition or sale of assets, Regulation FD disclosure
 Feb 28, 2025 Feb 28, 2025
8-K Current report
Results of operations, Regulation FD disclosure
 Feb 18, 2025 Feb 18, 2025
8-K Current report
Results of operations, Regulation FD disclosure
 Oct 22, 2024 Oct 22, 2024
8-K Current report
Results of operations, Regulation FD disclosure
 Jul 23, 2024 Jul 23, 2024
8-K Current report
Officer or director change, Regulation FD disclosure
 Jul 11, 2024 Jul 8, 2024
8-K Current report
Officer or director change, Regulation FD disclosure
 Jun 18, 2024 Jun 18, 2024
8-K Current report
Shareholder vote results
 Jun 7, 2024 Jun 6, 2024
8-K Current report
Material agreement, New debt
 May 31, 2024 May 24, 2024
8-K Current report
Results of operations, Regulation FD disclosure
 Apr 23, 2024 Apr 23, 2024
8-K Current report
Material agreement, Regulation FD disclosure
 Apr 22, 2024 Apr 21, 2024
8-K Current report
Regulation FD disclosure
 Feb 21, 2024 Feb 21, 2024
8-K Current report
Results of operations, Officer or director change
 Feb 20, 2024 Feb 20, 2024
8-K Current report
Results of operations, Regulation FD disclosure
 Oct 24, 2023 Oct 24, 2023
8-K Current report
Officer or director change, Regulation FD disclosure
 Aug 1, 2023 Jul 28, 2023
8-K Current report
Results of operations
 Jul 25, 2023 Jul 25, 2023
8-K Current report
Shareholder vote results
 Jun 12, 2023 Jun 8, 2023
8-K Current report
Results of operations
 Apr 25, 2023 Apr 25, 2023
8-K Current report
Results of operations
 Feb 21, 2023 Feb 21, 2023
8-K Current report
Results of operations
 Oct 25, 2022 Oct 25, 2022
8-K Current report
Other events
 Sep 20, 2022 Sep 16, 2022
8-K Current report
Results of operations
 Jul 26, 2022 Jul 26, 2022
8-K Current report
Shareholder vote results
 Jun 9, 2022 Jun 9, 2022
8-K Current report
Bylaw or fiscal year change
 May 9, 2022 Apr 18, 2022
8-K Current report
Results of operations
 Apr 26, 2022 Apr 26, 2022
8-K Current report
Results of operations
 Feb 22, 2022 Feb 22, 2022
8-K Current report
Results of operations
 Oct 26, 2021 Oct 26, 2021
8-K Current report
Results of operations
 Jul 27, 2021 Jul 27, 2021
8-K Current report
Bylaw or fiscal year change, Shareholder vote results, Other events
 Jun 7, 2021 Jun 2, 2021
8-K Current report
Results of operations
 Apr 27, 2021 Apr 27, 2021
8-K Current report
Other events
 Mar 5, 2021 Mar 4, 2021
8-K Current report
Results of operations
 Feb 23, 2021 Feb 23, 2021
8-K Current report
Other events
 Feb 16, 2021 Feb 16, 2021
8-K Current report
Agreement ended
 Jan 4, 2021 Jan 4, 2021
8-K Current report
Results of operations
 Oct 27, 2020 Oct 27, 2020
8-K Current report
Officer or director change
 Oct 1, 2020 Sep 27, 2020
8-K Current report
Results of operations
 Jul 28, 2020 Jul 28, 2020
8-K Current report
Material agreement, New debt
 Jul 1, 2020 Jul 1, 2020
8-K Current report
Other events
 Jun 24, 2020 Jun 24, 2020
8-K Current report
Shareholder vote results
 Jun 5, 2020 Jun 3, 2020
8-K Current report
Other events
 May 28, 2020 May 26, 2020
8-K Current report
Material agreement
 May 14, 2020 May 13, 2020
8-K Current report
Other events
 Apr 30, 2020 Apr 29, 2020
8-K Current report
Results of operations
 Apr 28, 2020 Apr 28, 2020
8-K Current report
New debt
 Mar 26, 2020 Mar 25, 2020
8-K Current report
Results of operations
 Feb 25, 2020 Feb 25, 2020
8-K Current report
Material agreement
 Feb 13, 2020 Feb 11, 2020
8-K Current report
Officer or director change
 Dec 18, 2019 Dec 12, 2019
8-K Current report
Results of operations, Other events
 Oct 22, 2019 Oct 22, 2019
8-K Current report
Material agreement
 Oct 2, 2019 Sep 30, 2019
8-K Current report
Regulation FD disclosure
 Oct 1, 2019 Sep 30, 2019
8-K Current report
Results of operations
 Jul 23, 2019 Jul 23, 2019
8-K Current report
Shareholder vote results
 Jun 6, 2019 Jun 5, 2019
8-K Current report
Results of operations
 Apr 23, 2019 Apr 23, 2019
8-K Current report
Results of operations
 Feb 26, 2019 Feb 26, 2019
8-K Current report
Results of operations
 Oct 23, 2018 Oct 23, 2018
8-K Current report
Results of operations, Officer or director change
 Jul 24, 2018 Jul 24, 2018
8-K Current report
Shareholder vote results
 Jun 6, 2018 Jun 6, 2018
8-K Current report
Results of operations
 Apr 23, 2018 Apr 23, 2018
8-K Current report
Results of operations, Unregistered share sale, Other events
 Feb 21, 2018 Feb 21, 2018
8-K Current report
Regulation FD disclosure
 Jan 17, 2018 Jan 17, 2018
8-K Current report
Other events
 Nov 28, 2017 Nov 24, 2017
8-K Current report
Material agreement, Results of operations, New debt, Other events
 Oct 25, 2017 Oct 25, 2017
8-K Current report
Other events
 Oct 3, 2017 Oct 3, 2017
8-K Current report
Material agreement, Regulation FD disclosure
 Sep 13, 2017 Sep 12, 2017
8-K Current report
Results of operations
 Jul 26, 2017 Jul 26, 2017
8-K Current report
Shareholder vote results
 Jun 7, 2017 Jun 6, 2017
8-K Current report
Results of operations
 Apr 27, 2017 Apr 26, 2017
8-K Current report
Results of operations
 Feb 22, 2017 Feb 22, 2017
8-K Current report
Results of operations
 Oct 27, 2016 Oct 26, 2016
8-K Current report
Results of operations
 Jul 27, 2016 Jul 27, 2016
8-K Current report
Shareholder vote results
 Jun 9, 2016 Jun 9, 2016
8-K Current report
Results of operations, Officer or director change
 Apr 27, 2016 Apr 27, 2016
8-K Current report
Results of operations
 Feb 24, 2016 Feb 24, 2016
8-K Current report
Officer or director change
 Nov 19, 2015 Nov 19, 2015
8-K Current report
Results of operations
 Oct 28, 2015 Oct 28, 2015
8-K Current report
Officer or director change
 Jul 30, 2015 Jul 30, 2015
8-K Current report
Results of operations
 Jul 29, 2015 Jul 29, 2015
8-K Current report
Material agreement, Shareholder vote results, Other events
 Jun 5, 2015 Jun 5, 2015
8-K Current report
Material agreement, Results of operations
 Apr 29, 2015 Apr 27, 2015
8-K Current report
Results of operations
 Feb 26, 2015 Feb 25, 2015
8-K Current report
Results of operations
 Feb 17, 2015 Feb 17, 2015
8-K Current report
Results of operations
 Oct 29, 2014 Oct 29, 2014
8-K Current report
Results of operations
 Jul 24, 2014 Jul 23, 2014
8-K Current report
Other events
 Jun 11, 2014 Jun 11, 2014
8-K Current report
Shareholder vote results
 Jun 3, 2014 Jun 2, 2014
8-K/A Amended current report Jun 2, 2014 Apr 1, 2014
8-K Current report
Officer or director change, Regulation FD disclosure
 May 16, 2014 May 16, 2014
8-K Current report
Results of operations
 Apr 23, 2014 Apr 23, 2014
8-K Current report
Material agreement, Agreement ended, Acquisition or sale of assets, New debt
 Apr 4, 2014 Apr 1, 2014
8-K Current report
Material agreement
 Mar 3, 2014 Mar 3, 2014
8-K Current report
Results of operations
 Feb 19, 2014 Feb 19, 2014
8-K Current report
Results of operations
 Oct 23, 2013 Oct 23, 2013
8-K Current report
Officer or director change
 Oct 8, 2013 Oct 4, 2013
8-K Current report
Bylaw or fiscal year change, Other events
 Sep 25, 2013 Sep 19, 2013
8-K Current report
Results of operations
 Jul 24, 2013 Jul 24, 2013
8-K Current report
Bylaw or fiscal year change, Shareholder vote results
 Jun 6, 2013 Jun 4, 2013
8-K Current report
Results of operations
 Apr 24, 2013 Apr 24, 2013
8-K Current report
Results of operations, Officer or director change, Regulation FD disclosure
 Feb 28, 2013 Feb 25, 2013
8-K Current report
Results of operations
 Oct 24, 2012 Oct 24, 2012
8-K Current report
Officer or director change
 Oct 2, 2012 Sep 27, 2012
8-K/A Amended current report Aug 14, 2012 Apr 30, 2012
8-K Current report
Results of operations
 Jul 26, 2012 Jul 25, 2012
8-K/A Amended current report Jun 22, 2012 Apr 30, 2012
8-K Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
 Jun 8, 2012 Jun 5, 2012
8-K Current report
Regulation FD disclosure
 May 2, 2012 May 2, 2012
8-K Current report
Material agreement, Acquisition or sale of assets, New debt, Other events
 Apr 30, 2012 Apr 30, 2012
8-K Current report
Other events
 Apr 26, 2012 Apr 26, 2012
8-K Current report
Results of operations
 Apr 26, 2012 Apr 25, 2012
8-K Current report
Other events
 Apr 17, 2012 Apr 17, 2012
8-K Current report
Officer or director change
 Feb 23, 2012 Feb 21, 2012
8-K Current report
Material agreement, Results of operations, New debt
 Feb 23, 2012 Feb 16, 2012
8-K Current report
Other events
 Jan 31, 2012 Jan 31, 2012
8-K Current report
Other events
 Jan 4, 2012 Jan 3, 2012
8-K Current report
Other events
 Nov 4, 2011 Nov 4, 2011
8-K Current report
Results of operations, Other events
 Oct 27, 2011 Oct 26, 2011
8-K Current report
Results of operations
 Jul 27, 2011 Jul 27, 2011
8-K Current report
Other events
 Jul 11, 2011 Jul 11, 2011
8-K Current report
Other events
 Jul 1, 2011 Jun 30, 2011
8-K Current report
Officer or director change, Shareholder vote results
 Jun 8, 2011 Jun 2, 2011

Showing 137 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.

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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.