Companies: 10,795·Total market cap: $144.5T
CoStar Group, Inc.

CoStar Group, Inc.

CSGPNASDAQReal Estate● Active
$33.66
$-0.23(-0.68%)
Market Cap$13.7B
P/E Ratio
52W High$97.43
52W Low$31.36
SEC Filings

CoStar Group, Inc. (CSGP) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001057352 · CSGP · NASDAQ · as of Jun 8, 2026

Filing snapshot

1,001+
Total Filings
8-K
Latest Form
2026-05-29
Most Recent
1998
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0001057352 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-02-26
Fiscal Year End
Feb 26, 2026
Accession No.
0001057352-26-000020
Primary Document
csgp-20251231.htm
Source: data.sec.gov · CIK 0001057352 · Accession 0001057352-26-000020

Latest Key Filings

10-QQuarterly Report
10-Q
2026-04-29
8-KCurrent Report
8-K
2026-05-29Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
8-KCurrent Report
8-K
2026-05-29
View
SDSD
SD
2026-05-20
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-05-18
View
ARSARS
ARS
2026-04-30
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-30
View
DEF 14AProxy Statement
DEF 14A
2026-04-30
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-04-29
View
10-QQuarterly Report
10-Q
2026-04-29
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-04-29
View
8-KCurrent Report
8-K
2026-04-28
View
3/AInitial Statement of Beneficial Ownership (Amended)
FORM 3/A
2026-04-02
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-03-26
View
3Initial Statement of Beneficial Ownership
FORM 3
2026-03-17
View
8-KCurrent Report
8-K
2026-03-16
View
10-KAnnual Report
10-K
2026-02-26
View
Showing 1–15 of 426 filingsForm 4 / 144 hidden· 1001 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001057352  |  Exchange: NASDAQ · Real Estate

CoStar Group, Inc. (NASDAQ: CSGP) has submitted 1,001+ documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 1998. As a Real Estate sector company with CIK 0001057352, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is CoStar Group, Inc.'s most comprehensive regulatory disclosure. The most recent CoStar Group, Inc. 10-K was filed on 2026-02-26 for fiscal year ending 2026. Historical CSGP 10-K annual reports are available from 2011 through 2026.

Investors researching CoStar Group, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08

Frequently Asked Questions

CSGP SEC Filings · 8 questions

CoStar Group, Inc. (CSGP) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 1,001+ filings and access original documents at no cost. CoStar Group, Inc.'s CIK is 0001057352.

CSGP SEC filingsCoStar Group, Inc. SEC documentsfind CSGP 10-K