Stocks / CSGP / Shares Outstanding

CoStar Group, Inc. Shares Outstanding 2009–2025

CoStar Group, Inc. reported 417.9M of shares outstanding for fiscal 2025. That was 2.1% higher than fiscal 2024. Compared with fiscal 2020, the change was +6.0%. A rising share count can dilute per-share ownership; the filings should be checked for issuance and stock-compensation details.

Latest filed value
417.9M
One-year change
+2.1%
Change since 2020
+6.0%
Latest period end
2025-12-31
CoStar Group, Inc. Shares Outstanding history from 2009 to 2025FY 2009: 0FY 2010: 207730000FY 2011: 254260000FY 2012: 283480000FY 2013: 288480000FY 2014: 323180000FY 2015: 325090000FY 2016: 325090000FY 2017: 361070000FY 2018: 364460000FY 2019: 366680000FY 2020: 394285000FY 2021: 394936000FY 2022: 406700000FY 2023: 408100000FY 2024: 409500000FY 2025: 417900000
Annual filed history. Hover chart points for raw values; the accessible table below is the source of record.
Fiscal yearShares OutstandingChange (YoY)
FY 2025417.9M+2.1%
FY 2024409.5M+0.3%
FY 2023408.1M+0.3%
FY 2022406.7M+3.0%
FY 2021394.9M+0.2%
FY 2020394.3M+7.5%
FY 2019366.7M+0.6%
FY 2018364.5M+0.9%
FY 2017361.1M+11.1%
FY 2016325.1M+0.0%
FY 2015325.1M+0.6%
FY 2014323.2M+12.0%
FY 2013288.5M+1.8%
FY 2012283.5M+11.5%
FY 2011254.3M+22.4%
FY 2010207.7M—
FY 20090.0M—

Source: CoStar Group, Inc. SEC filings — balance sheet (10-K), split-adjusted. Computed deterministically; refreshed nightly (last updated August 2, 2026). Open CSGP 10-K filings at SEC EDGAR · Methodology · Download CSV.

How to read this history

CoStar Group, Inc. reported 417.9M of shares outstanding for fiscal 2025. That was 2.1% higher than fiscal 2024. Compared with fiscal 2020, the change was +6.0%. A rising share count can dilute per-share ownership; the filings should be checked for issuance and stock-compensation details. Values remain missing when the cached filing does not disclose a comparable line item; they are never estimated. Stock splits, reorganizations and fiscal-calendar changes can reduce comparability.

Prepared and reviewed by the stockportfolio.pro research desk. Corrections: support@stockportfolio.pro.

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CoStar Group, Inc. — frequently asked questions

What is CoStar Group, Inc.'s shares outstanding?

CoStar Group, Inc. (CSGP) reported shares outstanding of 417.9M for fiscal year 2025, per its SEC filings.

Where does this data come from?

Figures are computed from CoStar Group, Inc.'s official SEC filings (balance sheet (10-K), split-adjusted), refreshed nightly. Not investment advice.

More CSGP financial history

CSGP revenueCSGP net incomeCSGP gross profitCSGP eps (earnings per share)CSGP ebitdaCSGP free cash flowCSGP total debtCSGP dividend historyCSGP p/e ratio

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