COSTAR GROUP, INC. reports

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

COSTAR GROUP, INC. has filed 1,518 SEC EDGAR filings since 13 Mar 1998

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SEC filing history

Showing 951-975 of 1,000 matching filings.

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25

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39

8-K File 000-24531

CURRENT REPORT, ITEMS 2.02, 8.01, 9.01

Filing date: 27 Oct 2011
Reporting date: 26 Oct 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

425

CURRENT REPORT, ITEMS 2.02, 8.01, 9.01

Filing date: 27 Oct 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 20 Sep 2011
Reporting date: 20 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 14 Sep 2011
Reporting date: 13 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 12 Sep 2011
Reporting date: 08 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 12 Sep 2011
Reporting date: 08 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 12 Sep 2011
Reporting date: 08 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 12 Sep 2011
Reporting date: 08 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 12 Sep 2011
Reporting date: 08 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 12 Sep 2011
Reporting date: 08 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 02 Aug 2011
Reporting date: 01 Aug 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 000-24531

2011 2Q QUARTERLY REPORT

Filing date: 28 Jul 2011
Reporting date: 30 Jun 2011
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-24531

CURRENT REPORT, ITEMS 2.02, 9.01

Filing date: 27 Jul 2011
Reporting date: 27 Jul 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24531

CURRENT REPORT

Filing date: 11 Jul 2011
Reporting date: 11 Jul 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

425

CURRENT REPORT

Filing date: 11 Jul 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24531

CURRENT REPORT, ITEM 8.01

Filing date: 01 Jul 2011
Reporting date: 30 Jun 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

425

CURRENT REPORT, ITEM 8.01

Filing date: 01 Jul 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 Jun 2011
Reporting date: 21 Jun 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-54369

SC 13G/A filing

Filing date: 10 Jun 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

3

PRIMARY DOCUMENT

Filing date: 08 Jun 2011
Reporting date: 02 Jun 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24531

CURRENT REPORT, ITEMS 5.02, 5.07, 9.01

Filing date: 08 Jun 2011
Reporting date: 02 Jun 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 Jun 2011
Reporting date: 05 Jun 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

424B3 File 333-174214

424(B)(3)

Filing date: 07 Jun 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

EFFECT File 333-174214

EFFECT filing

Filing date: 06 Jun 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-4/A File 333-174214

S-4/A

Filing date: 03 Jun 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

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