Filings with the SEC since Jun 3, 2011
1,004 filings, 5 in the last 30 days
Latest current reportOpen ↗
Oct 27, 2026
8-K: Material agreement signed, Quarterly results, Regulation FD disclosure
Filed in the last 30 days
5
of 1,004 in all
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)
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
All 1004
Annual & quarterly 62Current reports (8-K) 137Insiders 616Proxy & votes 37Big owners (13D/13G) 80Shares & debt offered 23SEC letters 19Other 30
| Filed | Form | What it is | Period | |
|---|---|---|---|---|
| Mar 2, 2021 | 4 | Insider trade | Feb 28, 2021 | all files |
| Mar 2, 2021 | 4 | Insider trade | Feb 28, 2021 | all files |
| Mar 1, 2021 | 425 | all files | ||
| Feb 24, 2021 | 425 | all files | ||
| Feb 24, 2021 | 10-K | Annual report | Dec 31, 2020 | all files · tables |
| Feb 23, 2021 | 8-K | Quarterly results | Feb 23, 2021 | all files |
| Feb 19, 2021 | 4 | Insider trade | Feb 18, 2021 | all files |
| Feb 19, 2021 | 4 | Insider trade | Feb 18, 2021 | all files |
| Feb 19, 2021 | 4 | Insider trade | Feb 18, 2021 | all files |
| Feb 19, 2021 | 4 | Insider trade | Feb 18, 2021 | all files |
| Feb 17, 2021 | 4 | Insider trade | Feb 15, 2021 | all files |
| Feb 17, 2021 | 4 | Insider trade | Feb 15, 2021 | all files |
| Feb 17, 2021 | 4 | Insider trade | Feb 15, 2021 | all files |
| Feb 17, 2021 | 4 | Insider trade | Feb 15, 2021 | all files |
| Feb 16, 2021 | 425 | all files | ||
| Feb 16, 2021 | 8-K | Other events | Feb 16, 2021 | all files |
| Feb 16, 2021 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Feb 12, 2021 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Feb 10, 2021 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Feb 1, 2021 | 4 | Insider trade | Jan 11, 2021 | all files |
| Jan 29, 2021 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Jan 4, 2021 | 8-K | Material agreement ended | Jan 4, 2021 | all files |
| Jan 4, 2021 | 4 | Insider trade | Dec 31, 2020 | all files |
| Jan 4, 2021 | 4 | Insider trade | May 7, 2020 | all files |
| Oct 28, 2020 | 10-Q | Quarterly report | Sep 30, 2020 | all files · tables |
| Oct 27, 2020 | 8-K | Quarterly results | Oct 27, 2020 | all files |
| Oct 5, 2020 | 3 | New insider | Sep 24, 2020 | all files |
| Oct 1, 2020 | 8-K | Director or officer change | Sep 27, 2020 | all files |
| Sep 25, 2020 | 4 | Insider trade | Sep 24, 2020 | all files |
| Sep 25, 2020 | 4 | Insider trade | Sep 24, 2020 | all files |
| Sep 25, 2020 | 4 | Insider trade | Sep 24, 2020 | all files |
| Sep 25, 2020 | 4 | Insider trade | Sep 24, 2020 | all files |
| Sep 25, 2020 | 4 | Insider trade | Sep 24, 2020 | all files |
| Sep 25, 2020 | 4 | Insider trade | Sep 24, 2020 | all files |
| Sep 25, 2020 | 4 | Insider trade | Sep 24, 2020 | all files |
| Sep 3, 2020 | 4 | Insider trade | Sep 2, 2020 | all files |
| Aug 28, 2020 | 4 | Insider trade | Aug 26, 2020 | all files |
| Aug 13, 2020 | 4 | Insider trade | Aug 12, 2020 | all files |
| Aug 5, 2020 | 4 | Insider trade | Aug 4, 2020 | all files |
| Jul 29, 2020 | 10-Q | Quarterly report | Jun 30, 2020 | all files · tables |
| Jul 28, 2020 | 8-K | Quarterly results | Jul 28, 2020 | all files |
| Jul 1, 2020 | 8-K | Material agreement signed, New debt or obligation | Jul 1, 2020 | all files |
| Jun 24, 2020 | 8-K | Other events | Jun 24, 2020 | all files |
| Jun 5, 2020 | 8-K | Shareholder vote results | Jun 3, 2020 | all files |
| May 28, 2020 | 8-K | Other events | May 26, 2020 | all files |
| May 28, 2020 | 4 | Insider trade | May 27, 2020 | all files |
| May 21, 2020 | 424B2 | Prospectus (notes) | all files | |
| May 19, 2020 | 424B2 | Prospectus (notes) | all files | |
| May 19, 2020 | S-3ASR | Shelf registration | all files | |
| May 14, 2020 | 8-K | Material agreement signed | May 13, 2020 | all files |
| May 8, 2020 | 4 | Insider trade | May 6, 2020 | all files |
| Apr 30, 2020 | 8-K | Other events | Apr 29, 2020 | all files |
| Apr 29, 2020 | 10-Q | Quarterly report | Mar 31, 2020 | all files · tables |
| Apr 28, 2020 | 8-K | Quarterly results | Apr 28, 2020 | all files |
| Apr 24, 2020 | DEFA14A | Extra proxy material | all files | |
| Apr 24, 2020 | DEF 14A | Proxy statement | Jun 3, 2020 | all files |
| Apr 2, 2020 | 4 | Insider trade | Mar 31, 2020 | all files |
| Apr 2, 2020 | 4 | Insider trade | Mar 31, 2020 | all files |
| Apr 2, 2020 | 4 | Insider trade | Mar 31, 2020 | all files |
| Apr 2, 2020 | 4 | Insider trade | Mar 31, 2020 | all files |
| Mar 26, 2020 | 8-K | New debt or obligation | Mar 25, 2020 | all files |
| Mar 16, 2020 | 4 | Insider trade | Mar 13, 2020 | all files |
| Mar 16, 2020 | 4 | Insider trade | Mar 13, 2020 | all files |
| Mar 5, 2020 | 4 | Insider trade | Mar 4, 2020 | all files |
| Mar 5, 2020 | 4 | Insider trade | Mar 4, 2020 | all files |
| Mar 3, 2020 | 4 | Insider trade | Feb 29, 2020 | all files |
| Mar 3, 2020 | 4 | Insider trade | Feb 29, 2020 | all files |
| Mar 3, 2020 | 4 | Insider trade | Feb 29, 2020 | all files |
| Mar 3, 2020 | 4 | Insider trade | Feb 29, 2020 | all files |
| Feb 26, 2020 | 10-K | Annual report | Dec 31, 2019 | all files · tables |
| Feb 25, 2020 | 8-K | Quarterly results | Feb 25, 2020 | all files |
| Feb 19, 2020 | 4 | Insider trade | Feb 15, 2020 | all files |
| Feb 19, 2020 | 4 | Insider trade | Feb 15, 2020 | all files |
| Feb 19, 2020 | 4 | Insider trade | Feb 15, 2020 | all files |
| Feb 19, 2020 | 4 | Insider trade | Feb 15, 2020 | all files |
| Feb 14, 2020 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Feb 14, 2020 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Feb 14, 2020 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Feb 13, 2020 | 8-K | Material agreement signed | Feb 11, 2020 | all files |
| Feb 12, 2020 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Feb 10, 2020 | 4 | Insider trade | Feb 6, 2020 | all files |
| Feb 10, 2020 | 4 | Insider trade | Feb 6, 2020 | all files |
| Feb 10, 2020 | 4 | Insider trade | Feb 6, 2020 | all files |
| Feb 10, 2020 | 4 | Insider trade | Feb 6, 2020 | all files |
| Feb 5, 2020 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Jan 14, 2020 | 4 | Insider trade | Jan 11, 2020 | all files |
| Jan 2, 2020 | 4 | Insider trade | Dec 31, 2019 | all files |
| Jan 2, 2020 | 4 | Insider trade | Dec 26, 2019 | all files |
| Jan 2, 2020 | 4 | Insider trade | Dec 31, 2019 | all files |
| Jan 2, 2020 | 4 | Insider trade | Dec 31, 2019 | all files |
| Dec 23, 2019 | 3 | New insider | Dec 12, 2019 | all files |
| Dec 20, 2019 | 3 | New insider | Dec 12, 2019 | all files |
| Dec 18, 2019 | 8-K | Director or officer change | Dec 12, 2019 | all files |
| Dec 10, 2019 | SC 13G/A | 5%+ owner (passive), amended | all files | |
| Nov 19, 2019 | 4 | Insider trade | Nov 19, 2019 | all files |
| Nov 4, 2019 | 4 | Insider trade | Nov 1, 2019 | all files |
| Oct 28, 2019 | 4 | Insider trade | Oct 25, 2019 | all files |
| Oct 23, 2019 | 10-Q | Quarterly report | Sep 30, 2019 | all files · tables |
| Oct 22, 2019 | 8-K | Quarterly results, Other events | Oct 22, 2019 | all files |
| Oct 2, 2019 | 8-K | Material agreement signed | Sep 30, 2019 | all files |
Show the other 75 filings on this page
Press releases with quarterly results are attached to the 8-Ks marked "Quarterly results"; read them on Earnings releases.