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CSGPCoStar Group

Real estate · Business Services · Nasdaq

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Filings with the SEC since Jun 3, 2011

1,004 filings, 5 in the last 30 days

SEC filing index

Latest annual reportOpen ↗

Feb 26, 2026

10-K, period to Dec 31, 2025

Latest quarterly reportOpen ↗

Oct 28, 2026

10-Q, period to Sep 30, 2026

Latest current reportOpen ↗

Oct 27, 2026

8-K: Material agreement signed, Quarterly results, Regulation FD disclosure

Filed in the last 30 days

of 1,004 in all

Timeline

Every filing on one line

1 yr 2 yr 3 yr

Annual report (10-K)Quarterly report (10-Q)Current report (8-K)Auditor changeCEO, CFO, COO or CAO changeRestatementLate filing noticeInsider purchaseCluster buy (3+ insiders)SEC comment letterShare offering (S-3, 424B)

20252026

All 30 events

Oct 28, 202610-Q Quarterly report (10-Q) period ended Sep 30, 2026
Oct 27, 20268-K Material agreement signed, Quarterly results, Regulation FD disclosure 8-K items 1.01, 2.02, 7.01
Aug 21, 20268-K Regulation FD disclosure 8-K item 7.01
Aug 5, 2026Buy FLORANCE ANDREW C (Founder and CEO) bought $2.5M open-market purchase on Aug 4, 2026
Jul 29, 202610-Q Quarterly report (10-Q) period ended Jun 30, 2026
Jul 28, 20268-K Quarterly results 8-K item 2.02
Jul 13, 2026Officer CFO change (the “Company” or “CoStar Group”) appointed Robin Rossmann to serve as the Company’s Chief Financial Officer, effective July 31, 2026 (“Effective Date”).
Jun 25, 20268-K Director or officer change, Shareholder vote results, Regulation FD disclosure 8-K items 5.02, 5.07, 7.01
May 29, 20268-K Material agreement signed, Regulation FD disclosure 8-K items 1.01, 7.01
May 4, 2026Buy FLORANCE ANDREW C (President and CEO) bought $2.5M open-market purchase on May 1, 2026
Apr 29, 202610-Q Quarterly report (10-Q) period ended Mar 31, 2026
Apr 28, 20268-K Quarterly results, Regulation FD disclosure 8-K items 2.02, 7.01
Mar 16, 20268-K Director or officer change, Regulation FD disclosure 8-K items 5.02, 7.01
Feb 26, 202610-K Annual report (10-K) period ended Dec 31, 2025
Feb 24, 20268-K Quarterly results, Regulation FD disclosure 8-K items 2.02, 7.01
Feb 13, 20268-K Director or officer change 8-K item 5.02
Jan 7, 20268-K Director or officer change, Regulation FD disclosure 8-K items 5.02, 7.01
Oct 29, 202510-Q Quarterly report (10-Q) period ended Sep 30, 2025
Oct 28, 20258-K Quarterly results, Regulation FD disclosure 8-K items 2.02, 7.01
Aug 27, 20258-K Regulation FD disclosure 8-K item 7.01
Jul 23, 202510-Q Quarterly report (10-Q) period ended Jun 30, 2025
Jul 22, 20258-K Quarterly results, Regulation FD disclosure 8-K items 2.02, 7.01
Jun 27, 20258-K Director or officer change, Shareholder vote results 8-K items 5.02, 5.07
May 9, 20258-K Material agreement signed, Regulation FD disclosure 8-K items 1.01, 7.01
May 1, 202510-Q Quarterly report (10-Q) period ended Mar 31, 2025
Apr 29, 20258-K Quarterly results 8-K item 2.02
Apr 7, 20258-K Material agreement signed, Director or officer change, Regulation FD disclosure 8-K items 1.01, 5.02, 7.01
Feb 28, 20258-K Acquisition or sale of assets completed, Regulation FD disclosure 8-K items 2.01, 7.01
Feb 20, 202510-K Annual report (10-K) period ended Dec 31, 2024
Feb 18, 20258-K Quarterly results, Regulation FD disclosure 8-K items 2.02, 7.01

From the SEC filing index. Insider purchases go back 180 days (the Form 4s downloaded).

Every filing

Newest first, by kind

Each form links to sec.gov

All 1004 Annual & quarterly 62 Current reports (8-K) 137 Insiders 616 Proxy & votes 37 Big owners (13D/13G) 80 Shares & debt offered 23 SEC letters 19 Other 30

Filed	Form	What it is	Period
Oct 28, 2026	10-Q	Quarterly report	Sep 30, 2026	all files · tables
Jul 29, 2026	10-Q	Quarterly report	Jun 30, 2026	all files · tables
Apr 29, 2026	10-Q	Quarterly report	Mar 31, 2026	all files · tables
Feb 26, 2026	10-K	Annual report	Dec 31, 2025	all files · tables
Oct 29, 2025	10-Q	Quarterly report	Sep 30, 2025	all files · tables
Jul 23, 2025	10-Q	Quarterly report	Jun 30, 2025	all files · tables
May 1, 2025	10-Q	Quarterly report	Mar 31, 2025	all files · tables
Feb 20, 2025	10-K	Annual report	Dec 31, 2024	all files · tables
Oct 23, 2024	10-Q	Quarterly report	Sep 30, 2024	all files · tables
Jul 25, 2024	10-Q	Quarterly report	Jun 30, 2024	all files · tables
Apr 24, 2024	10-Q	Quarterly report	Mar 31, 2024	all files · tables
Feb 22, 2024	10-K	Annual report	Dec 31, 2023	all files · tables
Oct 25, 2023	10-Q	Quarterly report	Sep 30, 2023	all files · tables
Jul 26, 2023	10-Q	Quarterly report	Jun 30, 2023	all files · tables
Apr 26, 2023	10-Q	Quarterly report	Mar 31, 2023	all files · tables
Feb 22, 2023	10-K	Annual report	Dec 31, 2022	all files · tables
Oct 26, 2022	10-Q	Quarterly report	Sep 30, 2022	all files · tables
Jul 27, 2022	10-Q	Quarterly report	Jun 30, 2022	all files · tables
Apr 28, 2022	10-Q	Quarterly report	Mar 31, 2022	all files · tables
Feb 23, 2022	10-K	Annual report	Dec 31, 2021	all files · tables
Oct 27, 2021	10-Q	Quarterly report	Sep 30, 2021	all files · tables
Jul 28, 2021	10-Q	Quarterly report	Jun 30, 2021	all files · tables
Apr 28, 2021	10-Q	Quarterly report	Mar 31, 2021	all files · tables
Feb 24, 2021	10-K	Annual report	Dec 31, 2020	all files · tables
Oct 28, 2020	10-Q	Quarterly report	Sep 30, 2020	all files · tables
Jul 29, 2020	10-Q	Quarterly report	Jun 30, 2020	all files · tables
Apr 29, 2020	10-Q	Quarterly report	Mar 31, 2020	all files · tables
Feb 26, 2020	10-K	Annual report	Dec 31, 2019	all files · tables
Oct 23, 2019	10-Q	Quarterly report	Sep 30, 2019	all files · tables
Jul 24, 2019	10-Q	Quarterly report	Jun 30, 2019	all files · tables
Apr 24, 2019	10-Q	Quarterly report	Mar 31, 2019	all files · tables
Feb 28, 2019	10-K	Annual report	Dec 31, 2018	all files · tables
Oct 24, 2018	10-Q	Quarterly report	Sep 30, 2018	all files · tables
Jul 25, 2018	10-Q	Quarterly report	Jun 30, 2018	all files · tables
Apr 25, 2018	10-Q	Quarterly report	Mar 31, 2018	all files · tables
Feb 23, 2018	10-K	Annual report	Dec 31, 2017	all files · tables
Oct 26, 2017	10-Q	Quarterly report	Sep 30, 2017	all files · tables
Jul 27, 2017	10-Q	Quarterly report	Jun 30, 2017	all files · tables
Apr 27, 2017	10-Q	Quarterly report	Mar 31, 2017	all files · tables
Feb 24, 2017	10-K	Annual report	Dec 31, 2016	all files · tables
Oct 27, 2016	10-Q	Quarterly report	Sep 30, 2016	all files · tables
Jul 28, 2016	10-Q	Quarterly report	Jun 30, 2016	all files · tables
Apr 28, 2016	10-Q	Quarterly report	Mar 31, 2016	all files · tables
Feb 26, 2016	10-K	Annual report	Dec 31, 2015	all files · tables
Oct 29, 2015	10-Q	Quarterly report	Sep 30, 2015	all files · tables
Jul 30, 2015	10-Q	Quarterly report	Jun 30, 2015	all files · tables
Apr 30, 2015	10-Q	Quarterly report	Mar 31, 2015	all files · tables
Feb 26, 2015	10-K	Annual report	Dec 31, 2014	all files · tables
Oct 30, 2014	10-Q	Quarterly report	Sep 30, 2014	all files · tables
Jul 25, 2014	10-Q	Quarterly report	Jun 30, 2014	all files · tables
Apr 24, 2014	10-Q	Quarterly report	Mar 31, 2014	all files · tables
Feb 20, 2014	10-K	Annual report	Dec 31, 2013	all files · tables
Oct 24, 2013	10-Q	Quarterly report	Sep 30, 2013	all files · tables
Jul 24, 2013	10-Q	Quarterly report	Jun 30, 2013	all files · tables
Apr 25, 2013	10-Q	Quarterly report	Mar 31, 2013	all files · tables
Mar 1, 2013	10-K	Annual report	Dec 31, 2012	all files · tables
Oct 25, 2012	10-Q	Quarterly report	Sep 30, 2012	all files · tables
Jul 26, 2012	10-Q	Quarterly report	Jun 30, 2012	all files · tables
Apr 27, 2012	10-Q	Quarterly report	Mar 31, 2012	all files · tables
Feb 23, 2012	10-K	Annual report	Dec 31, 2011	all files · tables
Oct 27, 2011	10-Q	Quarterly report	Sep 30, 2011	all files · tables
Jul 28, 2011	10-Q	Quarterly report	Jun 30, 2011	all files · tables

Show the other 37 filings on this page

Press releases with quarterly results are attached to the 8-Ks marked "Quarterly results"; read them on Earnings releases.

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