CoStar Group (MEX:CSGP) Insider Ownership: 0.00 % (As of Jul. 17, 2026)

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Charlie Tian
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Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

MEX:CSGP CoStar Group Inc MEX:CSGP
67 GF Score
Price MXN515.00
GF Value MXN1,747.47
Valuation Significantly Undervalued
! 1 Warning Sign
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What is CoStar Group Insider Ownership?

CoStar Group MEX:CSGP 67 Insider Ownership is 0.00 % as of Jul. 17, 2026. GuruFocus rates MEX:CSGP with a GF Score™ of 67/100 and a GF Value™ of MXN1,747.47 (Significantly Undervalued). The stock has 1 warning sign investors should review.

Insider ownership is the percentage of shares that are owned by company insiders relative to the total shares outstanding. As of today, CoStar Group's insider ownership is 0.00%.

Institutional Ownership is the percentage of shares that are owned by institutions out of the total shares outstanding. As of today, CoStar Group's Institutional Ownership is 81.37%.

Float Percentage Of Total Shares Outstanding is the percentage of float shares relative to the total shares outstanding. As of today, CoStar Group's Float Percentage Of Total Shares Outstanding is 99.28%.

CoStar Group Insider Ownership Historical Data

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The historical data trend for CoStar Group's Insider Ownership can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

CoStar Group Insider Ownership Chart

CoStar Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Insider Ownership
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

CoStar Group Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Insider Ownership Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00
MEX:CSGP
67GF Score
CoStar Group Inc MEX:CSGP
Insider Ownership is just one metric. See GF Score™, valuation, warning signs, and more.
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CoStar Group Insider Ownership Calculation

The percentage of shares that are owned by company insiders relative to the total shares outstanding.

Frequently Asked Questions Learn more about Insider Ownership →
What does a Insider Ownership of 0.00 % mean?
CoStar Group (MEX:CSGP) has a Insider Ownership of 0.00 % as of Jul. 17, 2026. Insider ownership equals the percent of shares owned by company insiders relative to total shares. View historical data on CoStar Group and its competitors.
Is CoStar Group's Insider Ownership too high?
CoStar Group's current Insider Ownership is 0.00 %. Overall, CoStar Group has a GF Score™ of 67/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does CoStar Group's Insider Ownership compare to JLL and BEKE?
CoStar Group's Insider Ownership of 0.00 % can be compared against companies in the Real Estate industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Insider Ownership for a Real Estate company?
A good Insider Ownership depends on the Real Estate industry context. However, Insider Ownership should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Insider Ownership mean?
A high Insider Ownership can signal that a stock is expensive relative to its fundamentals. Insider ownership equals the percent of shares owned by company insiders relative to total shares. View historical data on CoStar Group and its competitors. CoStar Group's current Insider Ownership is 0.00 %. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CoStar Group stock overvalued right now?
Based on GuruFocus' analysis, CoStar Group (MEX:CSGP) is currently considered Significantly Undervalued. The stock's GF Value™ is MXN1,747.47, compared to a current price of MXN515.00 — trading 70.5% below its estimated fair value. The current Insider Ownership is 0.00 %. CoStar Group's overall GF Score™ is 67/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Insider Ownership calculated?
Insider Ownership is calculated from a company's financial statements. For CoStar Group (MEX:CSGP), the current Insider Ownership is 0.00 % as of Jul. 17, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is CoStar Group (MEX:CSGP) Overvalued in 2026?

Based on GuruFocus' analysis, CoStar Group stock appears to be undervalued. The current stock price of MXN515.00 is trading 70.5% below its estimated GF Value™ of MXN1,747.47. GuruFocus considers CoStar Group to be Significantly Undervalued.

Key valuation signals for MEX:CSGP:

  • Insider Ownership: 0.00 %
  • GF Value™: MXN1,747.47 vs. price of MXN515.00 (70.5% below fair value)
  • GF Score™: 67/100 with 1 warning sign

No single metric tells the full story. See the MEX:CSGP stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

CoStar Group Business Description

Address 1201 Wilson Boulevard, Arlington, VA, USA, 22209
CoStar Group is a global provider of proprietary information, analytics, and online marketplaces serving both commercial and residential real estate. The firm operates through a diverse portfolio of brands, including CoStar Suite for commercial real estate research, LoopNet for commercial listings, Apartments.com for multifamily rentals, and Homes.com for residential brokerage. It primarily sells high-margin software-as-a-service subscriptions that provide institutional clients with forensic property data and premium advertising visibility. With operations across North America, Europe, and Asia-Pacific, CoStar maintains the industry's most comprehensive centralized real estate database, functioning as a critical information utility for brokers, lenders, and owners worldwide.
67GF Score

Get the complete analysis for MEX:CSGP

Insider Ownership is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

MXN515.00
Price
MXN1,747.47
GF Value