CSGP · Nasdaq · CIK 0001057352

COSTAR GROUP, INC.

COSTAR GROUP, INC.’s most recent SEC filing in our snapshot is a Form 8-K filed on Oct 27, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $3.2B and net income of $7.0M, according to its XBRL data on EDGAR. Its EDGAR record lists 49 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
$3.2B
Net income, FY2025
$7.0M
Form 4 filings on record, past 12 months
49

Company overview

Legal name (as filed)
COSTAR GROUP, INC.
Ticker
CSGP
SEC Central Index Key (CIK)
0001057352
Industry (SIC)
Services-Business Services, NEC (code 7389)
Business address
ARLINGTON, VA
State or country of incorporation
DE
Fiscal year ends
December 31
SEC filer category
Large accelerated filer
Position in SEC ticker list
#730 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from COSTAR GROUP, INC.’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$1.9BFY2021$2.2BFY2022$2.5BFY2023$2.7BFY2024$3.2BFY2025
Net income
$292.6MFY2021$369.5MFY2022$375.0MFY2023$139.0MFY2024$7.0MFY2025
CSGP annual results
ItemFY2021
ended Dec 31, 2021		FY2022
ended Dec 31, 2022		FY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$1.9B$2.2B$2.5B$2.7B$3.2B
Net income$292.6M$369.5M$375.0M$139.0M$7.0M
Diluted EPS$0.74$0.93$0.92$0.34$0.02
Total assets$7.3B$8.4B$8.9B$9.3B$10.5B
Cash and equivalents$3.8B$5.0B$5.2B$4.7B$1.6B

XBRL tags used: revenue = RevenueFromContractWithCustomerExcludingAssessedTax; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareDiluted; cash = CashAndCashEquivalentsAtCarryingValue. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

CSGP latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Feb 26, 202610-KAnnual report· period Dec 31, 2025Document · Index
Jul 29, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Oct 27, 20268-KMaterial agreement; Results of operations; Regulation FD disclosure· period Oct 27, 2026Document · Index
Apr 30, 2026DEF 14ADefinitive proxy statement· period Jun 23, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about COSTAR GROUP, INC., by form type:

4 ×188-K ×7SCHEDULE 13G ×310-Q ×2DEFA14A ×23 ×1144 ×1S-8 ×1SD ×1ARS ×1DEF 14A ×13/A ×1SCHEDULE 13G/A ×1
CSGP recent filings
FiledFormWhat it isOriginal
Oct 27, 20268-KMaterial agreement; Results of operations; Regulation FD disclosure· period Oct 27, 2026Document · Index
Oct 16, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 15, 2026Document · Index
Aug 21, 20268-KRegulation FD disclosure· period Aug 21, 2026Document · Index
Aug 14, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Aug 10, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 7, 2026Document · Index
Aug 10, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 5, 2026Document · Index
Aug 5, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 5, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20263Initial statement of beneficial ownership· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 1, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Jul 29, 2026S-8Registration of employee benefit plan securitiesDocument · Index
Jul 29, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Jul 28, 20268-KResults of operations· period Jul 28, 2026Document · Index
Jul 13, 20268-KDirector or officer change; Regulation FD disclosure· period Jul 7, 2026Document · Index
Jul 6, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 1, 2026Document · Index
Jun 25, 20268-KDirector or officer change; Shareholder vote results; Regulation FD disclosure· period Jun 23, 2026Document · Index
Jun 24, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 23, 2026Document · Index
Jun 24, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 23, 2026Document · Index
Jun 24, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 23, 2026Document · Index
Jun 24, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 23, 2026Document · Index
Jun 24, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 23, 2026Document · Index
Jun 24, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 23, 2026Document · Index
Jun 24, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 23, 2026Document · Index
Jun 16, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 15, 2026Document · Index
May 29, 20268-KMaterial agreement; Regulation FD disclosure· period May 28, 2026Document · Index
May 20, 2026SDSpecialized disclosure report (conflict minerals)Document · Index
May 18, 2026DEFA14AAdditional proxy soliciting materialsDocument · Index
May 4, 20264Statement of changes in beneficial ownership (insider trade)· period May 1, 2026Document · Index
Apr 30, 2026ARSARS· period Dec 31, 2025Document · Index
Apr 30, 2026DEFA14AAdditional proxy soliciting materialsDocument · Index
Apr 30, 2026DEF 14ADefinitive proxy statement· period Jun 23, 2026Document · Index
Apr 29, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Apr 29, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Apr 29, 202610-QQuarterly report· period Mar 31, 2026Document · Index
Apr 28, 20268-KResults of operations; Regulation FD disclosure· period Apr 28, 2026Document · Index
Apr 2, 20263/AInitial statement of beneficial ownership· period Mar 25, 2025Document · Index
Mar 26, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Mar 17, 20264Statement of changes in beneficial ownership (insider trade)· period Mar 15, 2026Document · Index

Insider filing activity

49 Form 4 filings appear in COSTAR GROUP, INC.’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001057352 and XBRL company facts. COSTAR GROUP, INC. on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.