COSTAR GROUP, INC. reports

Company location: Arlington, VA
Fiscal year end: 31 December

COSTAR GROUP, INC. has filed 1,542 SEC EDGAR filings since 13 Mar 1998

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SEC filing history

Showing 1-25 of 1,000 matching filings.

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25

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1

8-K File 000-24531

8-K

Filing date: 21 Aug 2026
Reporting date: 21 Aug 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

SCHEDULE 13G File 005-54369

SCHEDULE 13G filing

Filing date: 14 Aug 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 10 Aug 2026
Reporting date: 07 Aug 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 10 Aug 2026
Reporting date: 05 Aug 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-24531

144 filing

Filing date: 05 Aug 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 05 Aug 2026
Reporting date: 04 Aug 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 04 Aug 2026
Reporting date: 31 Jul 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 04 Aug 2026
Reporting date: 31 Jul 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 04 Aug 2026
Reporting date: 01 Aug 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

3

FORM 3

Filing date: 04 Aug 2026
Reporting date: 31 Jul 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-297794

S-8

Filing date: 29 Jul 2026
Reporting date: Not listed
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 000-24531

10-Q

Filing date: 29 Jul 2026
Reporting date: 30 Jun 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-24531

8-K

Filing date: 28 Jul 2026
Reporting date: 28 Jul 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-24531

8-K

Filing date: 13 Jul 2026
Reporting date: 07 Jul 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 06 Jul 2026
Reporting date: 01 Jul 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24531

8-K

Filing date: 25 Jun 2026
Reporting date: 23 Jun 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 24 Jun 2026
Reporting date: 23 Jun 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 24 Jun 2026
Reporting date: 23 Jun 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 24 Jun 2026
Reporting date: 23 Jun 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 24 Jun 2026
Reporting date: 23 Jun 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 24 Jun 2026
Reporting date: 23 Jun 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 24 Jun 2026
Reporting date: 23 Jun 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 24 Jun 2026
Reporting date: 23 Jun 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 16 Jun 2026
Reporting date: 15 Jun 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24531

8-K

Filing date: 29 May 2026
Reporting date: 28 May 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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