CSGP on Nasdaq

CoStar Group

Logo: CoStar Group, Public domain, via Wikimedia Commons⁵

American technology company

CoStar Group, Inc. is an American provider of information, analytics, and marketing services to the commercial property industry in North America and Europe. Founded in 1987 by Andrew C. Florance and based in Arlington, Virginia, the company operates the CoStar online database and news website and several online marketplaces, including Apartments.com and Homes.com.³ It was founded by Andy Florance.¹ Its chief executive is Andy Florance (since 1987).¹ Its shares trade on Nasdaq under the symbol CSGP.¹ Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1987Founded¹

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TickerCSGP on Nasdaq¹
Industrycommercial property, information technology, real estate industry, residential property¹
HeadquartersArlington County¹
Websitewww.costargroup.com
Legal formDelaware corporation¹
Incorporated inDE⁶
Business address1201 Wilson Blvd., Arlington, Va 22209⁶
Filer categoryLarge accelerated filer⁶
LEI984500Q1D53D08E2E698⁴
StatusActive⁴
LEI statusIssued and current⁴
Registered address251 LITTLE FALLS DRIVE, 19808 Wilmington, United States⁴
Registered withDivision of Corporations, Department of State, 2854191⁴

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Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

78.9%Gross margin¹⁰

-2.2%Operating margin¹⁰

0.2%Net margin¹⁰

18.7%Revenue growth, 2025¹⁰

0.1%Return on equity¹⁰

0.12×Debt to equity¹⁰

$123.0MFree cash flow¹⁰

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Business segments

Commercial Real Estate brought in 55% of the revenue CoStar Group broke down this way in fiscal 2025.

Commercial Real Estate$1.8B¹⁰55%up 18% from 2024
Residential Real Estate$1.5B¹⁰45%up 20% from 2024

Business segments by year

Business segments	2023	2024	2025
Commercial Real Estate	$1.4B	$1.5B	$1.8B
Residential Real Estate	$1.0B	$1.2B	$1.5B

Where the money goes

Where each dollar of revenue went, fiscal 2025

Cost of revenueOther costs

Cost of revenue21¢$686.0M
Other costs78¢$2.5B
Income tax1¢$23.0M
Profit0¢$7.0M

Out of $3.2B in revenue.¹⁰

Where each dollar of operating cash went, fiscal 2025

Capital spendingShare buybacks

Capital spending38¢$307.0M
Share buybacks62¢$500.0M

Out of $430.0M of cash from operations. Spending exceeded cash from operations; the rest came from savings or borrowing.¹⁰

Financial statements

Revenue¹¹¹²¹³¹⁴¹⁰$3.2B in 2025+132% since 2019

Gross profit¹¹¹²¹³¹⁴¹⁰$2.6B in 2025+131% since 2019

Operating income¹¹¹²¹³¹⁴¹⁰-$72.0M in 2025

Net income¹¹¹²¹³¹⁴¹⁰$7.0M in 2025−98% since 2019

Every line of the income statement as filed: the last 3 fiscal years, latest first.¹⁰

Period ending	2025-12-31	2024-12-31	2023-12-31
Revenue	$3.2B	$2.7B	$2.5B
Cost of revenue	$686.0M	$558.0M	$491.0M
Gross profit	$2.6B	$2.2B	$2.0B
Selling and marketing (excluding customer base amortization)	$1.6B	$1.4B	$990.0M
Software development	$406.0M	$326.0M	$268.0M
General and administrative	$549.0M	$439.0M	$382.0M
Customer base amortization	$118.0M	$44.0M	$42.0M
Total operating expenses	$2.6B	$2.2B	$1.7B
Income (loss) from operations	-$72.0M	$5.0M	$282.0M
Interest income, net	$110.0M	$213.0M	$214.0M
Other income (expense), net	-$8.0M	-$8.0M	$6.0M
Income before income taxes	$30.0M	$210.0M	$502.0M
Income tax expense	$23.0M	$71.0M	$127.0M
Net income	$7.0M	$139.0M	$375.0M
Earning per share basic (in dollars per share)	$0.02	$0.34	$0.92
Earning per share diluted (in dollars per share)	$0.02	$0.34	$0.92
Weighted average outstanding shares basic (in shares)	416.8M shares	406.3M shares	405.3M shares
Weighted average outstanding shares diluted (in shares)	420.7M shares	407.8M shares	406.9M shares

Total assets¹⁷¹¹¹²¹³¹⁴¹⁰$10.5B in 2025+173% since 2019

Total liabilities¹⁷¹¹¹²¹³¹⁴¹⁰$2.2B in 2025+383% since 2019

Shareholders’ equity¹²¹³¹⁴¹⁰$8.3B in 2025+145% since 2019

Cash¹⁷¹¹¹²¹³¹⁴¹⁰$1.6B in 2025+53% since 2019

Long-term debt¹⁷¹¹¹²¹³¹⁴¹⁰$993.0M in 2025

Every line of the balance sheet as filed: the last 4 fiscal years (annual) or 4 quarters (quarterly), latest first.¹⁰

Period ending	2025-12-31	2024-12-31	2023-12-31	2022-12-31
Cash and cash equivalents	$1.6B	$4.7B
Restricted cash	$100.0M	$0
Accounts receivable	$263.0M	$211.0M
Less: Allowance for credit losses	-$29.0M	-$23.0M
Accounts receivable, net	$234.0M	$188.0M
Income taxes receivable	$18.0M	$0
Prepaid expenses and other current assets	$134.0M	$81.0M
Total current assets	$2.1B	$5.0B
Deferred income taxes, net	$47.0M	$31.0M
Property and equipment, net	$1.3B	$1.0B
Lease right-of-use assets	$123.0M	$103.0M
Goodwill	$4.9B	$2.5B	$2.4B
Intangible assets, net	$1.8B	$433.0M
Deferred commission costs, net	$184.0M	$170.0M
Deposits and other assets	$27.0M	$27.0M
Total assets	$10.5B	$9.3B
Accounts payable	$42.0M	$44.0M
Accrued wages and commissions	$145.0M	$133.0M
Accrued expenses	$203.0M	$164.0M
Litigation accrual	$99.0M	$0
Income taxes payable	$1.0M	$23.0M
Lease liabilities	$28.0M	$32.0M
Deferred revenue	$205.0M	$137.0M
Other current liabilities	$23.0M	$19.0M
Total current liabilities	$746.0M	$552.0M
Long-term debt, net	$993.0M	$992.0M
Deferred income taxes, net	$238.0M	$8.0M
Income taxes payable	$27.0M	$25.0M
Lease and other long-term liabilities	$163.0M	$127.0M
Total liabilities	$2.2B	$1.7B
Preferred stock, $0.01 par value; 2.0 million shares authorized; zero outstanding	$0	$0
Common stock, $0.01 par value; 1.2 billion shares authorized at December 31, 2025 and 2024; and 425.0 million issued and 417.9 million outstanding as of December 31, 2025 and 409.5 million issued and outstanding as of December 31, 2024	$4.0M	$4.0M
Additional paid-in capital	$6.4B	$5.2B
Treasury stock, 7.1 million shares, cost basis at December 31, 2025	-$510.0M	$0
Accumulated other comprehensive income (loss)	$80.0M	-$26.0M
Retained earnings	$2.4B	$2.3B
Stockholders' equity attributable to CoStar Group	$8.3B	$7.6B
Equity attributable to NCI	$37.0M	$0
Total equity	$8.4B	$7.6B	$7.3B	$6.9B
Total liabilities and stockholders equity	$10.5B	$9.3B
Preferred stock, par value (in dollars per share)	$0.01	$0.01
Preferred stock, shares authorized (in shares)	2.0M shares	2.0M shares
Preferred stock, shares outstanding (in shares)	0 shares	0 shares
Common stock, par or stated value per share (in dollars per share)	$0.01	$0.01
Common stock, shares authorized (in shares)	1.2B shares	1.2B shares
Common stock, shares issued, (in shares)	425.0M shares	409.5M shares
Common stock, shares outstanding (in shares)	417.9M shares	409.5M shares
Repurchased (in shares)	7.1M shares

Period ending	2025-12-31	2024-12-31	2023-12-31	2022-12-31
Cash and cash equivalents	$1.6B	$4.7B
Restricted cash	$100.0M	$0
Accounts receivable	$263.0M	$211.0M
Less: Allowance for credit losses	-$29.0M	-$23.0M
Accounts receivable, net	$234.0M	$188.0M
Income taxes receivable	$18.0M	$0
Prepaid expenses and other current assets	$134.0M	$81.0M
Total current assets	$2.1B	$5.0B
Deferred income taxes, net	$47.0M	$31.0M
Property and equipment, net	$1.3B	$1.0B
Lease right-of-use assets	$123.0M	$103.0M
Goodwill	$4.9B	$2.5B	$2.4B
Intangible assets, net	$1.8B	$433.0M
Deferred commission costs, net	$184.0M	$170.0M
Deposits and other assets	$27.0M	$27.0M
Total assets	$10.5B	$9.3B
Accounts payable	$42.0M	$44.0M
Accrued wages and commissions	$145.0M	$133.0M
Accrued expenses	$203.0M	$164.0M
Litigation accrual	$99.0M	$0
Income taxes payable	$1.0M	$23.0M
Lease liabilities	$28.0M	$32.0M
Deferred revenue	$205.0M	$137.0M
Other current liabilities	$23.0M	$19.0M
Total current liabilities	$746.0M	$552.0M
Long-term debt, net	$993.0M	$992.0M
Deferred income taxes, net	$238.0M	$8.0M
Income taxes payable	$27.0M	$25.0M
Lease and other long-term liabilities	$163.0M	$127.0M
Total liabilities	$2.2B	$1.7B
Preferred stock, $0.01 par value; 2.0 million shares authorized; zero outstanding	$0	$0
Common stock, $0.01 par value; 1.2 billion shares authorized at December 31, 2025 and 2024; and 425.0 million issued and 417.9 million outstanding as of December 31, 2025 and 409.5 million issued and outstanding as of December 31, 2024	$4.0M	$4.0M
Additional paid-in capital	$6.4B	$5.2B
Treasury stock, 7.1 million shares, cost basis at December 31, 2025	-$510.0M	$0
Accumulated other comprehensive income (loss)	$80.0M	-$26.0M
Retained earnings	$2.4B	$2.3B
Stockholders' equity attributable to CoStar Group	$8.3B	$7.6B
Equity attributable to NCI	$37.0M	$0
Total equity	$8.4B	$7.6B	$7.3B	$6.9B
Total liabilities and stockholders equity	$10.5B	$9.3B
Preferred stock, par value (in dollars per share)	$0.01	$0.01
Preferred stock, shares authorized (in shares)	2.0M shares	2.0M shares
Preferred stock, shares outstanding (in shares)	0 shares	0 shares
Common stock, par or stated value per share (in dollars per share)	$0.01	$0.01
Common stock, shares authorized (in shares)	1.2B shares	1.2B shares
Common stock, shares issued, (in shares)	425.0M shares	409.5M shares
Common stock, shares outstanding (in shares)	417.9M shares	409.5M shares
Repurchased (in shares)	7.1M shares

Cash from operations¹¹¹²¹³¹⁴¹⁰$430.0M in 2025−6% since 2019

Capital spending¹¹¹²¹³¹⁴¹⁰$307.0M in 2025

Free cash flow¹¹¹²¹³¹⁴¹⁰$123.0M in 2025−73% since 2019

Share buybacks¹⁰$500.0M in 2025

Every line of the cash flow as filed: the last 3 fiscal years, latest first.¹⁰

Period ending	2025-12-31	2024-12-31	2023-12-31
Net income	$7.0M	$139.0M	$375.0M
Depreciation and amortization	$263.0M	$147.0M	$108.0M
Amortization of deferred commissions costs	$141.0M	$117.0M	$95.0M
Non-cash lease expense	$30.0M	$33.0M	$30.0M
Stock-based compensation expense	$194.0M	$89.0M	$85.0M
Deferred income taxes, net	$36.0M	-$50.0M	-$37.0M
Credit loss expense	$32.0M	$36.0M	$35.0M
Other operating activities, net	-$5.0M	$1.0M	-$2.0M
Accounts receivable	-$28.0M	-$30.0M	-$67.0M
Prepaid expenses, other current assets and other assets	-$21.0M	-$8.0M	-$17.0M
Deferred commissions	-$152.0M	-$120.0M	-$120.0M
Accounts payable and other liabilities	-$12.0M	$44.0M	$34.0M
Lease liabilities	-$31.0M	-$38.0M	-$39.0M
Income taxes payable, net	-$45.0M	$22.0M	$11.0M
Deferred revenue	$21.0M	$11.0M	-$1.0M
Net cash provided by operating activities	$430.0M	$393.0M	$490.0M
Proceeds from sale and settlement of investments and other assets	$205.0M	$2.0M	$4.0M
Purchases of property, equipment, and other assets for new campuses	-$307.0M	-$579.0M	-$118.0M
Purchases of property, equipment, and other assets	-$82.0M	-$59.0M	-$25.0M
Purchases of equity securities	-$285.0M	$0
Cash paid for acquisitions, net of cash acquired	-$2.3B	-$277.0M	-$100.0M
Net cash used in investing activities	-$2.8B	-$913.0M	-$239.0M
Repurchase of restricted stock to satisfy tax withholding obligations	-$75.0M	-$30.0M	-$26.0M
Stock repurchase	-$500.0M	$0	$0
Proceeds from exercise of stock options and employee stock purchase plan	$24.0M	$25.0M	$23.0M
Other financing activities, net	-$8.0M	-$9.0M	-$1.0M
Net cash used in financing activities	-$559.0M	-$14.0M	-$4.0M
Effect of foreign currency exchange rates on cash, cash equivalents, and restricted cash	-$3.0M	-$1.0M	$1.0M
Net (decrease) increase in cash, cash equivalents, and restricted cash	-$2.9B	-$535.0M	$248.0M
Interest paid	$30.0M	$31.0M	$31.0M
Income taxes paid	$73.0M	$100.0M	$163.0M
Consideration owed for acquisitions	$0	$1.0M	$8.0M
Accrued capital expenditures and non-cash landlord incentives	$74.0M	$64.0M	$29.0M

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Corporate structure

CoStar Group sits at the top of its group. 93 entities, 15 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of CoStar Group

BAMCO INC /NY/ Filed SCHEDULE 13G on CoStar Group, latest Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLC Filed SCHEDULE 13G on CoStar Group, latest Apr 29, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC Filed SCHEDULE 13G on CoStar Group, latest Apr 29, 2026
VANGUARD GROUP INC Filed SCHEDULE 13G/A on CoStar Group, latest Mar 26, 2026 (5 filings since Feb 9, 2022)
BlackRock Filed SCHEDULE 13G/A on CoStar Group, latest Apr 23, 2025 (4 filings since Feb 1, 2022)
PRICE T ROWE ASSOCIATES INC /MD/ Filed SC 13G/A on CoStar Group, latest Feb 14, 2023 (2 filings since Feb 14, 2022)

CoStar Group Washington, the District of Columbia, United States
- Domain Group Subsidiary · 60% · Sydney
- ApartmentHomeLiving.com Subsidiary · Austin, United States
- Apartments.com Subsidiary · Arlington County, United States
- Emporis Subsidiary · Hamburg
- LoopNet Subsidiary · Washington, D.C.
- Zonda Home Subsidiary · Washington, D.C.
- AcreValue Brokerage Services, LLC Subsidiary · Delaware, United States
- Ag-Analytics Technology Company, LLC Subsidiary · Delaware, United States
- Agents’ Mutual Limited Subsidiary · United Kingdom
- All Homes Pty Limited Subsidiary · Australia
- Alldata Australia Pty Ltd Subsidiary · Australia
- AM Tempco Limited Subsidiary · United Kingdom
- Andromeda Australia TopCo Pty Limited Subsidiary · Australia
- Australian Property Monitors Pty Limited Subsidiary · Australia
- Bidtracker (VIC) Pty Ltd Subsidiary · Australia
- Bidtracker Holdings Pty Ltd Subsidiary · Australia
- BIH Subsidiary · France
- Campaigntrack Pty Ltd Subsidiary · Australia
- Commercial Real Estate Holdings Pty Limited Subsidiary · Australia
- Commercial Real Estate Media Nominees Pty Limited Subsidiary · Australia
- Commercial Real Estate Media Pty Limited Subsidiary · Australia
- Commercialview.com.au Pty Limited Subsidiary · Australia
- Comreal Info Subsidiary · France
- CoStar Central Place HQ, LLC Subsidiary · Delaware, United States
- CoStar Espana, S.L. Subsidiary · Spain
- and 67 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What CoStar Group reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

Item	Latest	A year before	Change
Property and equipment, before depreciation	$1.5B¹⁰ Dec 31, 2025	$1.1B¹⁰ Dec 31, 2024	+27.7%
Accumulated depreciation	$146.0M¹⁰ Dec 31, 2025	$135.0M¹⁰ Dec 31, 2024	+8.1%
Property and equipment, net	$1.3B¹⁰ Dec 31, 2025	$1.0B¹⁰ Dec 31, 2024	+30.3%
Finance-lease assets	$13.0M¹⁰ Dec 31, 2025	$16.0M¹⁰ Dec 31, 2024	−18.8%
Operating-lease assets (leased space)	$123.0M¹⁰ Dec 31, 2025	$103.0M¹⁰ Dec 31, 2024	+19.4%

Investments

Item	Latest	A year before	Change
Cash and cash equivalents	$1.6B¹⁰ Dec 31, 2025	$4.7B¹⁰ Dec 31, 2024	−65.1%

Intangibles and goodwill

Item	Latest	A year before	Change
Goodwill	$4.9B¹⁰ Dec 31, 2025	$2.5B¹⁰ Dec 31, 2024	+95.6%
Intangible assets, net (excluding goodwill)	$1.8B¹⁰ Dec 31, 2025	$433.0M¹⁰ Dec 31, 2024	+309.0%
Finite-lived intangibles, net	$1.8B¹⁰ Dec 31, 2025	$433.0M¹⁰ Dec 31, 2024	+309.0%

Inventory

Item	Latest	A year before	Change
Inventory, total	$6.0M¹⁰ Dec 31, 2025
Finished goods	$4.0M¹⁰ Dec 31, 2025

Properties, in its own words

On January 21, 2025, we relocated our headquarters to our owned building at 1201 Wilson Blvd., in Arlington, Virginia, occupying approximately 198,000 square feet. We exited our previous headquarters located at 1331 L Street, NW, in downtown Washington, D.C., with a lease that expired on May 31, 2025.

Our staff in Richmond, Virginia is located in an owned building at 501 S 5th Street, where we occupy approximately 310,000 square feet, an owned building located at 901 Semmes Avenue, where we occupy approximately 117,000 square feet, leased space at 951 E Byrd St., where we occupy approximately 165,000 square feet, and leased space at 901 E Byrd St., where we occupy approximately 46,000 square feet. These locations primarily house research, product development, and sales functions. All of our owned properties are held under fee simple ownership and are not materially encumbered.

The rest of Item 2

Internationally, our principal facility in the U.K. is located in London, where we occupy approximately 52,000 square feet of office space. Our lease for this facility has a term ending November 10, 2034. We exited our previous London location when the lease expired on August 31, 2025. Our principal facility in Australia is located in Sydney, where we occupy approximately 95,000 square feet, with a lease term ending June 30, 2031. Additionally, we lease space for our operations in Paris, France; Madrid, Spain; Freiburg, Germany; and Manila, Philippines.

We also operate certain research, development, and sales functions out of additional leased office spaces in Irvine, California; San Diego, California; and Atlanta, Georgia. Additionally, we lease office space in a variety of other metropolitan areas. These locations include, among others, the following: Nashville, Tennessee; Norfolk, Virginia; Boston, Massachusetts; New York, New York; San Francisco, California; Los Angeles, California; and Sunnyvale, California.

We believe these facilities are suitable and appropriately support our business needs.

Item 2 of the 10-K filed Feb 26, 2026.¹⁸

Stakes and holdings (Wikidata)

Things Wikidata records the company as owning, with the share when stated.¹

The story

Founded by Andy Florance in 1987.¹

Origins

CoStar Group was founded in 1987 by Andrew C. Florance in Washington, D.C., as one of the first companies that digitized and aggregated property data before the Internet became widely available. In 1998, the company went public via an initial public offering on Nasdaq, raising $22.5 million. In June 2004, the lawsuit CoStar Group, Inc. v. LoopNet, Inc. became a landmark case in copyright law about the role of an Internet service provider in monitoring copyrighted content posted on its servers. In October 2009, the company acquired a building from the Mortgage Bankers Association for $41.3 million, which served as the company's headquarters. The building had sold for $97 million two years earlier, with CoStar Group claiming that it had used its analytics data to determine the right time to buy. In 2025, CoStar Group moved its headquarters to Arlington, Virginia.

Growth and expansion

Throughout the 2010s, CoStar Group expanded its footprint in the commercial property industry with a series of acquisitions in North America and Europe. In 2009, it acquired Property and Portfolio Research company Grecam, joining the company's existing Grecam service. In 2012, it acquired the online marketing site LoopNet for $860 million. With the acquisition, CoStar Group also took over the Loopnet properties BizBuySell and LandsofAmerica. Two years later, the company acquired Apartments.com for $585 million, as well as Apartment Finder the following year.

From 2017 through 2020, the company acquired the online marketplaces Westside Rentals, ForRent.com (previously owned by Dominion Enterprises), Cozy Services, Off Campus Partners, and Ten-X; in addition to the hotel research and analytics firm STR, the residential mobile application provider Homesnap. In April 2021, it acquired Homes.com, a prominent residential real-estate website, from Dominion Enterprises for $156 million in cash. In February 2025, CoStar acquired the 3D spatial mapping company Matterport for $1.6 billion.

Overseas, its European division acquired the German real-estate business data company Thomas Daily and the Spanish online marketplace and information provider Belbex in 2016. From 2018 through 2023, it acquired the British online marketplace Realla, the German real-estate data company Emporis, the French online marketplace BureauxLocaux, and the British property portal OnTheMarket.

In April 2025, CoStar appointed former S&P Global Ratings president John Breisford, former Etsy CFO Rachel Glaser, and former Walt Disney Company CFO Christine McCarthy as independent directors. Louise Sams was appointed independent chair of the board.

After initially taking a 16.9% stake in Australian real estate information company Domain Group, CoStar entered an agreement to acquire 100% of the company for US$1.92 billion in May 2025.

In May 2026, CoStar Group agreed to acquire Zonda, a provider of new-home construction data and homebuilder software, from private equity firm MidOcean Partners for $800 million in cash. The deal gave CoStar Group Zonda's data and software for the residential homebuilding sector, along with its new-construction listing sites NewHomeSource.com and Livabl. The acquisition came amid antitrust scrutiny of CoStar's commercial real estate data business, including class-action lawsuits alleging it holds a dominant share of online commercial listings and has used that position to limit competition; CoStar has denied the allegations. The purchase was completed on August 21, 2026.

Other activities

In 2019, CoStar Group announced that Oxford Economics would provide the economic data and forecasts used in its products.

Read the full text

In 2022, Business Insider reported that over 29 then-current and former employees had claimed to have been excessively monitored and micromanaged – including with unscheduled check-in video calls made by the company's IT department – as well as being publicly berated and arbitrarily fired in some cases. The company made efforts to take down criticism of itself on various social media platforms. CoStar Group denied the allegations, contending that the discontent had stemmed from the company's high expectations.

In 2024, CoStar Group purchased an estimated $35 million worth of airtime at Super Bowl LVIII for four Super Bowl commercials advertising its subsidiaries Homes.com and Apartments.com, which The New York Times described as an effort to rival competitor services such as Zillow and Realtor.com.

CoStar has been criticized for anticompetitive and monopolistic business practices, often using aggressive litigation and "public-relations warfare" to "push [competitors] to the brink of collapse or weaken them enough to make them soft targets for an acquisition".

From Wikipedia’s article on CoStar Group, shared under CC BY-SA 4.0.⁷

Leadership

Who has led CoStar Group, and when. Pick a name to see everywhere that person has worked.

Chief executive

Andy Florance1987–now

President

Chief financial officer

19901995200020052010201520202025

FounderAndy Florance¹
Chief executive officerAndy Florance 1987 to now¹⁹
PresidentFrederick G. Saint Oct 5, 2020 to now²⁰
PresidentAndy Florance Mar 14, 2006 to Oct 5, 2020²¹
Chief financial officerChristian M. Lown Jul 3, 2024 to now²²
Chief financial officerScott L. Yinger Aug 11, 2015 to Aug 11, 2015²³
Chief financial officerBrian J. Radecki Jun 6, 2007 to Mar 13, 2015²⁴
Chief financial officerFrancis Carchedi Mar 14, 2006 to May 1, 2007²⁵

Board members and other officers (29)

Chief Financial OfficerRobin Jack Rossmann Aug 4, 2026 to now²⁶
Chief Accounting OfficerCynthia Cammett Cann Jul 18, 2024 to now²⁷
Chief Technology OfficerFrank Simuro Apr 28, 2022 to now²⁸
Chief Human Resources OfficerMichael J. Desmarais Apr 28, 2022 to now²⁹
Senior VP, Global ResearchLisa Ruggles Sep 19, 2017 to now³⁰
Executive Vice President SalesMatthew Linnington Jun 4, 2014 to Aug 13, 2020³¹
Sr. VP-Sales, Customer ServiceJohn L. Stanfill Jun 26, 2008 to Mar 12, 2014³²
OfficerFrancis Carchedi Jul 31, 2007 to Oct 2, 2018³³
Managing Director, FOCUSPaul Marples Sep 19, 2007 to Aug 1, 2012³⁴
Sr. VP-Sales, Customer ServiceChristopher Tully Mar 14, 2006 to May 29, 2008³⁵
Vice President, ResearchCraig Farrington Mar 14, 2006 to May 1, 2007³⁶
Sr. Vice President, ResearchJennifer Kitchen Dec 14, 2006 to Sep 11, 2013³⁷
Board memberNana Banerjee Mar 17, 2026 to now³⁸
Board memberChristine McCarthy Apr 14, 2025 to now³⁹
Board memberJohn L. Berisford Apr 14, 2025 to now⁴⁰
Board memberRachel C. Glaser Apr 14, 2025 to now⁴¹
Board memberAngelique G. Brunner Aug 2, 2023 to now⁴²
Board memberLouise S. Sams Dec 20, 2019 to now⁴³
Board memberRobert W. Musslewhite Dec 23, 2019 to now⁴⁴
Board memberLaura Cox Kaplan Apr 28, 2016 to Aug 5, 2024⁴⁵
Board memberMichael J. Glosserman Jun 16, 2008 to Nov 1, 2023⁴⁶
Board memberAndy Florance Mar 14, 2006 to now²¹
Board memberMichael R. Klein Mar 15, 2006 to Dec 12, 2024⁴⁷
Board memberCatherine Reynolds Oct 26, 2006 to Sep 18, 2007⁴⁸
Board memberChristopher J. Nassetta Oct 26, 2006 to Dec 2, 2024⁴⁹
Board memberDavid Bonderman Oct 26, 2006 to Sep 15, 2014⁵⁰
Board memberJosiah O. Low Iii. Oct 26, 2006 to Sep 7, 2010⁵¹
Board memberWarren H. Haber Oct 26, 2006 to Sep 24, 2018⁵²
General counselGene Boxer Apr 28, 2022 to now⁵³

Products and brands

CoStar Group provides commercial real estate information, analytics, and online marketplaces for real estate transactions. Its research services include online services and research for the rental home and hotel industry.

As of March 2026, its subsidiaries include:

From Wikipedia’s article on CoStar Group, shared under CC BY-SA 4.0.⁷

Subsidiaries and ownership

Owners

Andy Florance

Subsidiaries

Also owns

Emporis since Oct 26, 2020

Subsidiaries (Exhibit 21)

AM Tempco Limited United Kingdom⁸
AcreValue Brokerage Services, LLC Delaware⁸
Ag-Analytics Technology Company, LLC Delaware⁸
Agents’ Mutual Limited United Kingdom⁸
All Homes Pty Limited Australia⁸
Alldata Australia Pty Ltd Australia⁸
Andromeda Australia TopCo Pty Limited Australia⁸
Australian Property Monitors Pty Limited Australia⁸
BIH France⁸
Bidtracker (VIC) Pty Ltd Australia⁸
Bidtracker Holdings Pty Ltd Australia⁸
Campaigntrack Pty Ltd Australia⁸
CoStar Central Place HQ, LLC Delaware⁸
CoStar Espana, S.L. Spain⁸
CoStar Field Research, LLC Delaware⁸
CoStar Group, Inc. Delaware⁸
CoStar International, LLC Delaware⁸
CoStar Italy S.r.l. Italy⁸
CoStar Realty Information Canada Ltd. British Columbia⁸
CoStar Realty Information, Inc. Delaware⁸
CoStar Realty LLC Delaware⁸
CoStar UK Limited United Kingdom⁸
CoStar UK Limited Dubai Branch United Kingdom⁸
Commercial Real Estate Holdings Pty Limited Australia⁸

All 90 listed subsidiaries

Commercial Real Estate Media Nominees Pty Limited Australia⁸
Commercial Real Estate Media Pty Limited Australia⁸
Commercialview.com.au Pty Limited Australia⁸
Comreal Info France⁸
Cozy Insurance Services, LLC Florida⁸
Cozy Services, LLC Delaware⁸
Domain Group Finance Pty Limited Australia⁸
Domain Group New Zealand Limited New Zealand⁸
Domain Group Philippines, Inc. Philippines⁸
Domain Holdings Australia Pty Limited Australia⁸
Domain Operations Pty Limited Australia⁸
Domain SubCo Pty Limited Australia⁸
Homepass Australia Pty Ltd Australia⁸
Homepass Pty Ltd Australia⁸
Homes Media Solutions, LLC Virginia⁸
Homes.com, LLC Delaware⁸
Homesnap, LLC Delaware⁸
IDS Gov Services Pty. Ltd. Australia⁸
Insight Data Solutions Holdings Pty. Ltd. Australia⁸
Insight Data Solutions Pty Ltd Australia⁸
MMP (DVH) Pty Ltd Australia⁸
MMP (Melbourne Times) Pty Ltd Australia⁸
MMP Bayside Pty Ltd Australia⁸
MMP Eastern Pty Ltd Australia⁸
MMP Greater Geelong Pty Ltd Australia⁸
MMP Holdings Pty Ltd Australia⁸
MMP Moonee Valley Pty Ltd Australia⁸
MarketNow Payments Pty Ltd Australia⁸
Matterport B.V. Netherlands⁸
Matterport Japan K.K. Japan⁸
Matterport Pte. Ltd Singapore⁸
Matterport Sales UK Ltd. United Kingdom⁸
Matterport, LLC Delaware⁸
Metro Media Publishing Pty Ltd Australia⁸
Metro Media Services Pty Ltd Australia⁸
National Real Estate Media Nominees Pty Limited Australia⁸
National Real Estate Media Pty Limited Australia⁸
New South Wales Real Estate Media Pty Limited Australia⁸
Northern Territory Real Estate Media Pty Limited Australia⁸
OnTheMarket LTD United Kingdom⁸
Property Data Solutions (2) Pty Ltd Australia⁸
Property Data Solutions Pty Ltd Australia⁸
Queensland Real Estate Media Pty Limited Australia⁸
Realbase Pty Ltd Australia⁸
Realhub Services Pty Ltd Australia⁸
Realhub Studios Pty Ltd Australia⁸
Realhub Systems Pty Ltd Australia⁸
Review Property Pty Ltd Australia⁸
STR Australia Pty Ltd. Australia⁸
STR Benchmarking Indonesia Indonesia⁸
STR Colombia SAS Colombia⁸
STR Germany GmbH Germany⁸
STR Global Singapore Private Limited Singapore⁸
STR Japan GK Japan⁸
STR, LLC Delaware⁸
South Australia Real Estate Media Pty Limited Australia⁸
Tasmania Real Estate Media Pty Limited Australia⁸
Ten-X, Inc. Delaware⁸
Ten-X, LLC Delaware⁸
The Screening Pros, LLC California⁸
Thomas Daily GmbH Germany⁸
VHT, LLC Delaware⁸
Virginia Property Holdings II, LLC Delaware⁸
Visual Lease, LLC Delaware⁸
Western Australia Real Estate Media Pty Limited Australia⁸
Workstream Technologies Pty Ltd Australia⁸

From Wikidata.¹ The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.

Acquisitions

Oct 26, 2020Acquired Emporis¹
Oct 22, 2019STR, Inc. became a subsidiary¹
Apr 2012LoopNet became a subsidiary¹

Former names

COSTAR GROUP, INC.Jul 23, 2019 to Aug 21, 2026⁶
COSTAR GROUP INCDec 10, 1999 to Jun 25, 2019⁶
REALTY INFORMATION GROUP INCJul 17, 1998 to May 5, 1999⁶

Controversies and legal

Legal cases

Xceligent

In December 2016, CoStar Group filed a lawsuit against rival Xceligent, owned by London-based Daily Mail and General Trust for copyright infringement of thousands of images. According to the lawsuit, Xceligent used offshore contractors in India and the Philippines to copy CoStar Group's copyrighted photographs and crop out the CoStar Group watermark.. The court entered a $500 million judgement and permanent injunction against Xceligent, valuing each CoStar Group image at $50,000.

CREXi

In September 2020, CoStar Group filed a lawsuit against rival commercial real estate marketplace, Commercial Real Estate Exchange, Inc. (CREXi). The suit alleged CREXi engaged offshore contractors to copy and crop CoStar Group's copyrighted images from LoopNet, a CoStar Group website. In June 2025, the court found significant evidence that CREXi and its contractors copied images from LoopNet, and that CoStar Group owned the photographs that they claimed were infringed.

In September 2024, CoStar Group obtained a permanent injunction against CREXi's founding investor, Leon Capital LLC, for unauthorized access to CoStar's database.

Simultaneously, CoStar Group filed multiple lawsuits in India against CREXi-hired contractors, known as BPOs, for assisting in the copyright infringement. Those cases resulted in several judgments and permanent injunctions against CREXi's offshore contractors.

STR

In February 2024, a proposed consumer class action lawsuit was filed against CoStar Group in multiple states, accusing the company of a price-fixing conspiracy in which it conspired with a group of luxury hotel chains—including Hilton, Hyatt, Marriott, InterContinental, Loews, and Accor—to keep room rental prices artificially high by sharing competitively sensitive information through the company's STR reports. These allegations were based in part on insider information shared by an STR software engineer. In September 2025, the claims were dismissed by the court.

Move, Inc.

In July 2024, CoStar Group was sued by competitor Move, Inc., the operator of Realtor.com, for alleged trade secret misappropriation. Move sought a preliminary injunction against CoStar Group. The injunction was denied by a California federal court on the basis that Move had not provided evidence of any irreparable harm. In April 2025, less than a year after filing its lawsuit, Move voluntarily dismissed the case.

Read the full text

Zillow

CoStar Group sued Zillow in July 2025 for copyright infringement, including for using tens of thousands of CoStar Group's watermarked photographs on its sites, as well as syndicating those photographs on Zillow's partner sites, Redfin and Realtor.com.

From Wikipedia’s article on CoStar Group, shared under CC BY-SA 4.0.⁷

Timeline

Aug 21, 20268-K Regulation FD disclosure⁵⁴
Jul 28, 20268-K Results of operations⁵⁵
Jul 13, 20268-K Executive or director change; Regulation FD disclosure⁵⁶
Jun 25, 20268-K Executive or director change; Shareholder vote; Regulation FD disclosure⁵⁷
May 29, 20268-K Entered a material agreement; Regulation FD disclosure⁵⁸
Apr 28, 20268-K Results of operations; Regulation FD disclosure⁵⁹
Mar 16, 20268-K Executive or director change; Regulation FD disclosure⁶⁰
Feb 24, 20268-K Results of operations; Regulation FD disclosure⁶¹
Feb 13, 20268-K Executive or director change⁶²
Jan 7, 20268-K Executive or director change; Regulation FD disclosure⁶³
Oct 28, 20258-K Results of operations; Regulation FD disclosure⁶⁴
Aug 27, 20258-K Regulation FD disclosure⁶⁵
Jul 1, 1998Went public Listed on NASDAQ¹
1987New chief executive Andy Florance becomes CEO¹
1987Founded Founded¹

Calendar

Coming up

Oct 27, 2026 · After the closeReports results for the quarter ending Sep/2026 A year earlier it reported $0.11 a share, on Oct 28, 2025.⁶⁶

When it reported results

Jul 28, 2026Reported quarterly or annual results⁵⁵
Apr 28, 2026Reported quarterly or annual results⁵⁹
Feb 24, 2026Reported quarterly or annual results⁶¹
Oct 28, 2025Reported quarterly or annual results⁶⁴
Jul 22, 2025Reported quarterly or annual results⁶⁷
Apr 29, 2025Reported quarterly or annual results⁶⁸
Feb 18, 2025Reported quarterly or annual results⁶⁹
Oct 22, 2024Reported quarterly or annual results⁷⁰

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

367 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 43 major events, 232 insider forms, 14 large holders, 58 other. The latest 20:

Aug 21, 20268-K EDGAR
Aug 14, 2026SCHEDULE 13G EDGAR
Aug 10, 20264 EDGAR
Aug 10, 20264 EDGAR
Aug 5, 2026144 EDGAR
Aug 5, 20264 EDGAR
Aug 4, 20264 EDGAR
Aug 4, 20263 EDGAR
Aug 4, 20264 EDGAR
Aug 4, 20264 EDGAR
Jul 29, 2026S-8 EDGAR
Jul 29, 202610-Q EDGAR
Jul 28, 20268-K EDGAR
Jul 13, 20268-K EDGAR
Jul 6, 20264 EDGAR
Jun 25, 20268-K EDGAR
Jun 24, 20264 EDGAR
Jun 24, 20264 EDGAR
Jun 24, 20264 EDGAR
Jun 24, 20264 EDGAR

The 367 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

51 open-market trades by officers, directors and large owners since October 2021: 7 buys and 44 sales. Grants, option exercises and gifts are left out.

Date	Who	Trade	Shares	Price	Value	Filing
Aug 7, 2026	Cann Cynthia CammettChief Accounting Officer	Sale	4,788	$30.78	$147.4K	Form 4
Aug 5, 2026	Hill John WDirector	Sale	3,500	$30.21	$105.7K	Form 4
Aug 4, 2026	FLORANCE ANDREW CFounder and CEO	Buy	83,300	$29.89	$2.5M	Form 4
May 1, 2026	FLORANCE ANDREW CFounder and CEO	Buy	71,430	$35.20	$2.5M	Form 4
Mar 6, 2026	Sams Louise SDirector	Buy	1,000	$48.36	$48.4K	Form 4
Mar 2, 2026	SAINT FREDERICK G.President, Marketplaces	Buy	20,000	$45.33	$906.6K	Form 4
Mar 2, 2026	Glaser Rachel CDirector	Buy	1,000	$44.94	$44.9K	Form 4
Feb 27, 2026	FLORANCE ANDREW CFounder and CEO	Buy	55,720	$44.52	$2.5M	Form 4
Nov 13, 2025	Hill John WDirector	Sale	2,250	$68.68	$154.5K	Form 4
Nov 13, 2025	Cann Cynthia CammettChief Accounting Officer	Sale	1,841	$68.79	$126.6K	Form 4
Aug 28, 2025	SAINT FREDERICK G.President, Marketplaces	Sale	25,000	$90.33	$2.3M	Form 4
Jul 28, 2025	SAINT FREDERICK G.President, Marketplaces	Sale	25,000	$93.23	$2.3M	Form 4
Jul 28, 2025	Cann Cynthia CammettChief Accounting Officer	Sale	2,033	$92.85	$188.8K	Form 4
Jun 11, 2025	SAINT FREDERICK G.President, Marketplaces	Sale	25,000	$81.10	$2.0M	Form 4
Mar 10, 2025	Cann Cynthia CammettChief Accounting Officer	Sale	1,749	$79.90	$139.7K	Form 4
Dec 10, 2024	Hill John WDirector	Sale	2,735	$76.76	$209.9K	Form 4
Nov 27, 2024	NASSETTA CHRISTOPHER JDirector	Sale	1,681	$80.39	$135.1K	Form 4
Nov 26, 2024	DESMARAIS MICHAEL JChief Human Resources Officer	Sale	5,500	$79.88	$439.3K	Form 4
Nov 11, 2024	Cann Cynthia CammettChief Accounting Officer	Sale	1,310	$76.85	$100.7K	Form 4
Oct 25, 2024	KLEIN MICHAEL RDirector	Sale	71,633	$74.69	$5.4M	Form 4

All 51 trades can be filtered by person here when JavaScript is on.

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

BAMCO INC /NY/SCHEDULE 13G, 1 filing Aug 14, 2026⁷¹
VANGUARD CAPITAL MANAGEMENT LLCSCHEDULE 13G, 1 filing Apr 29, 2026⁷²
VANGUARD PORTFOLIO MANAGEMENT LLCSCHEDULE 13G, 1 filing Apr 29, 2026⁷³
VANGUARD GROUP INCSCHEDULE 13G/A, 5 filings Feb 9, 2022 to Mar 26, 2026⁷⁴
BlackRockSCHEDULE 13G/A, 4 filings Feb 1, 2022 to Apr 23, 2025⁷⁵
PRICE T ROWE ASSOCIATES INC /MD/SC 13G/A, 2 filings Feb 14, 2022 to Feb 14, 2023⁷⁶

Executive pay

What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.

Year	Executive	Age	Salary	Total pay
2025	Andrew C. FloranceFounder and Chief Executive Officer	62	$1.0M	$36.4M⁷⁷
2025	Frank A. SimuroChief Technology Officer		$646.9K	$10.3M⁷⁷
2025	Frederick G. SaintPresident, Marketplaces		$591.9K	$8.2M⁷⁷
2025	Christian M. LownChief Financial Officer		$588.3K	$8.0M⁷⁷
2025	Lisa C. RugglesSenior Vice President, Global Operations		$591.9K	$5.8M⁷⁷
2024	Andrew C. FloranceFounder and Chief Executive Officer	62	$1.0M	$37.4M⁷⁷
2024	Frank A. SimuroChief Technology Officer		$623.0K	$13.3M⁷⁷
2024	Frederick G. SaintPresident, Marketplaces		$571.2K	$9.0M⁷⁷
2024	Lisa C. RugglesSenior Vice President, Global Operations		$571.2K	$6.8M⁷⁷
2024	Christian M. LownChief Financial Officer		$253.8K	$3.5M⁷⁷
2023	Andrew C. FloranceFounder and Chief Executive Officer	62	$997.0K	$29.2M⁷⁷
2023	Frank A. SimuroChief Technology Officer		$587.4K	$8.7M⁷⁷
2023	Lisa C. RugglesSenior Vice President, Global Operations		$545.3K	$5.6M⁷⁷
2023	Frederick G. SaintPresident, Marketplaces		$547.0K	$5.4M⁷⁷

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

Fund	Shares	Value	Share of the fund	Change
Vanguard Portfolio Management LLC	37,914,844	$1.1B	0.0%	−319,289
BlackRock, Inc.	33,813,969	$957.6M	0.0%	+5,785
Vanguard Capital Management LLC	26,683,792	$755.7M	0.0%	−740,111
Bamco Inc /ny/	21,626,763	$612.5M	0.9%	+5,312,588
State Street Corp	18,410,876	$521.4M	0.0%	−240,099
Capital International Investors	16,643,016	$471.3M	0.1%	+1,129,263
Baillie Gifford & Co	13,154,165	$372.5M	0.3%	−456,757
Geode Capital Management, LLC	12,166,469	$343.3M	0.0%	−282,183
Akre Capital Management LLC	11,699,396	$331.3M	6.5%	+1,351,123
Polen Capital Management LLC	8,759,314	$248.1M	2.1%	−3,811,054
Aqr Capital Management LLC	8,445,474	$239.2M	0.1%	+7,182,770
Jupiter Topco LLC	7,832,860	$221.8M	0.1%	New
Invesco Ltd.	6,808,377	$192.8M	0.0%	−9,139,148
EdgePoint Investment Group Inc.	5,950,002	$168.5M	1.3%	New
Norges Bank	5,949,912	$168.5M	0.0%	New
Morgan Stanley	5,485,870	$155.4M	0.0%	+73,255
Meritage Group LP	5,394,164	$152.8M	5.9%	+2,065,158
Jpmorgan Chase & Co	4,939,994	$145.4M	0.0%	+3,090,449
Goldman Sachs Group Inc	5,129,484	$145.3M	0.0%	−4,116,328
Federated Hermes, Inc.	4,426,727	$125.4M	0.2%	+3,128,769
Capital Research Global Investors	4,193,733	$118.8M	0.0%	−179,973
Principal Financial Group Inc	3,790,794	$107.4M	0.1%	−13,905,398
Northern Trust Corp	3,448,839	$97.7M	0.0%	+16,608
Qube Research & Technologies Ltd	3,218,369	$91.1M	0.1%	New
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	3,136,727	$88.9M	0.1%	+461,226

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

33 trades disclosed by members of Congress, the latest 25. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

Date	Member	Trade	Amount	Vs S&P since	Filing
Aug 19, 2026	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−4.6%	Report
Apr 14, 2026	Gilbert Ray Cisneros, Jr.Democratic, House	Partial sale	$1,001 - $15,000	+25.2%	Report
Mar 13, 2026	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−42.5%	Report
Jan 28, 2026	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−61.4%	Report
Dec 10, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−64.6%	Report
Oct 15, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−73.1%	Report
Sep 30, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−77.6%	Report
Sep 25, 2025	Lisa C. McClainRepublican, House	Sale	$1,001 - $15,000	+78.4%	Report
Sep 22, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−78.3%	Report
Aug 13, 2025	Lisa C. McClainRepublican, House	Buy	$1,001 - $15,000	−82.8%	Report
Jul 31, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−88.2%	Report
Jul 9, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−85.4%	Report
Jun 30, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−84.7%	Report
Jun 27, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$15,001 - $50,000	−85.5%	Report
Jun 25, 2025	Gilbert Ray Cisneros, Jr.Democratic, House	Buy	$1,001 - $15,000	−87.4%	Report
May 15, 2025	Robert P. Bresnahan, Jr.Republican, House	Sale	$1,001 - $15,000	+88.2%	Report
May 12, 2025	Jefferson ShreveRepublican, House	Sale	$15,001 - $50,000	+89.5%	Report
Feb 24, 2025	Jefferson ShreveRepublican, House	Buy	$15,001 - $50,000	−87.5%	Report
Jan 21, 2025	William R. KeatingDemocratic, House	Buy	$1,001 - $15,000	−84.4%	Report
Jan 15, 2025	Julie JohnsonDemocratic, House	Sale	$1,001 - $15,000	+86.1%	Report
Apr 10, 2023	Daniel S. GoldmanDemocratic, House	Buy	$15,001 - $50,000	−141.5%	Report
Mar 6, 2023	Daniel S. GoldmanDemocratic, House	Sale	$15,001 - $50,000	+145.9%	Report
Feb 5, 2021	Josh GottheimerDemocratic, House	Sale	$1,001 - $15,000	+163.5%	Report
Oct 13, 2020	Greg Gianforte, House	Partial sale	$1,001 - $15,000	+183.8%	Report
Oct 7, 2020	Gilbert Ray Cisneros, Jr.Democratic, House	Partial sale	$1,001 - $15,000	+189.6%	Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

SEC filer profile

How CoStar Group is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

Name on EDGARCOSTAR GROUP, INC.²
CIK0001057352
Employer ID (EIN)52-2091509¹⁸
Filer statusLarge accelerated filer not an emerging growth company; not a smaller reporting company; not a shell company¹⁸
Incorporated inDelaware¹⁸
Fiscal year endsDecember 31²
Industry code (SIC)7389 Services-Business Services, NEC²
SEC reviewing officeOffice of Trade & Services, Division of Corporation Finance²
Business address1201 Wilson Blvd., Arlington, VA 22209²
Phone2023466500²
Shares outstanding405,197,588 as of Jul 27, 2026¹⁶
Public float$33.9B as of Jun 30, 2025¹⁸
AuditorErnst & Young LLP, Tysons, Virginia PCAOB ID 42; it also attests to the company’s internal control over financial reporting¹⁸
On EDGAR sinceMar 13, 1998²
Filings1,542 in all: 4 (788), 8-K (204), SC 13G/A (112), 10-Q (85), SC 13G (42), 3 (31), DEF 14A (28), 10-K (26)²
All 47 form types
144 (25), 425 (25), UPLOAD (19), DEFA14A (18), ARS (16), S-8 (15), CORRESP (14), 424B2 (10), 5 (7), 8-K/A (6), SC 13D (6), S-1/A (5), SC 13D/A (5), 4/A (4), 424B3 (4), PRE 14A (4), S-3/A (4), S-3ASR (4), S-4 (3), S-4/A (3), SCHEDULE 13G (3), 10-K/A (2), 10-K405 (2), 424B1 (2), EFFECT (2), FWP (2), S-1 (2), S-3 (2), SCHEDULE 13G/A (2), 10-Q/A (1), 3/A (1), 424B4 (1), 8-A12G (1), POS EX (1), PX14A6G (1), RW (1), S-1MEF (1), S-3MEF (1), SD (1)
Latest filingsAnnual report (10-K) Feb 26, 2026
Quarterly report (10-Q) Jul 29, 2026
Proxy statement (DEF 14A) Apr 30, 2026
Latest 8-K (8-K) Aug 21, 2026

Securities registered for trading

Class	Symbol	Exchange
Common Stock ($0.01 par value)	CSGP	Nasdaq Global Select Market

From the cover page of the 10-K filed Feb 26, 2026 (Section 12(b) of the Exchange Act).¹⁸

Risk factors and legal proceedings

The risks CoStar Group names in Item 1A of its 10-K filed Feb 26, 2026: 38 risks under these headings, as written.¹⁸

Risks related to our business
We may not be able to attract and retain new clients, which could adversely affect our revenue and financial position. Our success and revenue depend on attracting and retaining subscribers to our information, analytics, and online marketplace services, which generate the largest portion of our revenue.
We may not be able to successfully develop and introduce new or upgraded online marketplace services, information, and analytics that are attractive to our users and advertisers or successfully combine or shift focus from current services with less demand, which could decrease our revenue and our profitability.
Competition could render our services uncompetitive and reduce our profitability. The markets for information systems and services and for online marketplaces in general are highly competitive and rapidly changing in response to changing consumer behavior and new technological advancements.
Our operating results and revenue are subject to fluctuations, and our quarterly financial results may be subject to market cyclicality, each of which could negatively affect our stock price.
Global economic uncertainties and downturns or a downturn or consolidation in the real estate industry may decrease customer demand for our services and adversely affect our business and results of operations.
If we are unable to hire qualified persons for, or retain and continue to develop our sales force, or if our sales force is unproductive, our revenue could be adversely affected.
Our internal and external investments may place downward pressure on our operating margins.
Introducing new products may be difficult and expensive. If we are unable to do so successfully, our brands may be adversely affected, and we may not be able to maintain or grow our current revenue and profit levels.
We may be unable to increase awareness of our brands, including CoStar, LoopNet, Matterport, BizBuySell, STR, Apartments.com, Homes.com, Land.com, OnTheMarket, and Domain which could adversely affect our business.
If our websites are not prominently featured in internet search engine results, if internet search engines integrate technologies or adopt ranking methodologies that decrease traffic to our websites, or we are unable to maintain or grow traffic to our marketplaces, our business and operating results could be adversely affected.
If real estate professionals or other advertisers reduce or cancel their advertising spending with us and we are unable to attract new advertisers, our operating results would be harmed.

The other 27 risks

If we are not able to successfully identify, finance, integrate, and/or manage costs related to acquisitions, our business operations and financial position could be adversely affected.
We may not be able to complete certain strategic transactions if a proposed transaction is subject to review or approval by regulatory authorities pursuant to applicable laws or regulations.
We may be unable to realize the benefits of the acquisition of either Matterport or Domain, which could have an adverse effect on us.
If third-party suppliers upon which Matterport relies are not able to fulfill its needs, Matterport’s ability to timely and cost effectively bring its hardware products to market could be affected.
Cyberattacks and security vulnerabilities could result in material harm to our reputation, business, and financial condition.
Technical problems or disruptions that affect either our customers’ ability to access our services, or the software, internal applications, database, and network systems underlying our services, could damage our reputation and lead to reduced demand for our online marketplace services, information, and analytics, lower revenue and increase costs.
The significant costs associated with undertaking a large infrastructure project to build out our campus in Richmond, Virginia, have impacted and will continue to impact our financial condition and results of operations.
Our current or future geographic expansion plans may not result in increased revenue, which may negatively impact our business, results of operations, and financial position.
We are subject to a number of risks related to acceptance of credit cards and debit cards and facilitation of other customer payments.
Climate-related events and other events beyond our control could harm our business.
Attention to corporate responsibility matters may require us to incur additional costs or otherwise adversely impact our business.
Risks related to our data, intellectual property, and listings
If we are not able to obtain and maintain accurate, comprehensive, or reliable data, we could experience reduced demand for our online marketplace services, information, and analytics.
If we are unable to enforce or defend our ownership and use of intellectual property, our business, brands, competitive position, and operating results could be harmed.
Use of new and evolving technologies, including AI, could impact our ability to protect our data and intellectual property from misappropriation by third parties.
We may be subject to legal liability for collecting, displaying, or distributing information, or integrating generative AI Technologies in our products and services.
If we are unable to obtain or retain listings from real estate brokers, agents, property owners, and apartment property managers, our marketplace services could be less attractive to current or potential customers, which could reduce our revenue.
We may not be able to maintain or establish relationships with third-party listing providers, which could limit the information we have to power our products and services and impair our ability to maintain stable data feeds and attract or
Some of our products or services contain third-party open source software components, and failure to comply with the terms of the underlying open source software licenses could restrict our ability to deliver our products or services or subject us to litigation or other actions.
Risks related to our international operations
International operations expose us to additional business risks, which may reduce our profitability.
Fluctuating foreign currency exchange rates may negatively impact our business, results of operations, and financial position.
Risks related to our indebtedness
We have a significant amount of indebtedness, which could decrease our flexibility and adversely affect our business, financial condition, and results of operations.
A lowering or withdrawal of the ratings assigned to our debt securities by rating agencies may increase our future borrowing costs, reduce our access to capital, or result in the loss of certain covenant suspensions.
Risks related to regulatory compliance and legal matters
Our actual or perceived failure to comply with privacy, security and evolving AI and data-related laws and standards could adversely affect our business, financial condition, and results of operations.
Changes in tax laws, regulations, or fiscal and tax policies, or the manner of their interpretation or enforcement could adversely impact our financial performance.
Third-party claims, litigation, regulatory proceedings, or government investigations to which we are subject or in which we become involved, regardless of their merit, may significantly increase our expenses and adversely affect our stock price.
We do not currently intend to pay dividends on our common stock and, consequently, your ability to achieve a return on your investment will depend on appreciation in the price of our common stock.
Stock repurchases under our Stock Repurchase Program are discretionary, and we cannot guarantee that our Stock Repurchase Program will achieve the desired objectives. Share repurchases diminish our cash reserves and could also increase the volatility of the trading price of our common stock.

Legal proceedings

Currently, and from time to time, we are involved in litigation incidental to the conduct of our business, including, among others, the legal actions discussed under “Contingencies” in Note 12 “Commitments and Contingencies” of the Notes to our Consolidated Financial Statements included in Part IV of this Report. While our management presently believes that the ultimate outcome of these proceedings, individually and in the aggregate, will not materially harm our business, financial position, future results of operations, or liquidity, legal proceedings are inherently uncertain, and unfavorable rulings could, individually or in the aggregate, have a material adverse effect on our business, financial position, future results of operations, or liquidity.

The opening of Item 3, Legal Proceedings.¹⁸

Sources

The numbers on this page point here. Each one links to the record it came from.

1
WikidataCoStar Group on Wikidata
2
SEC EDGARCoStar Group filings on SEC EDGAR
3
WikipediaCoStar Group on Wikipedia
4
GLEIFCoStar Group LEI record (984500Q1D53D08E2E698)
5
Wikimedia CommonsCoStar Group logo by CoStar Group, Public domain
6
SEC EDGARCoStar Group filings on SEC EDGAR
7
WikipediaCoStar Group on Wikipedia (revision used)
8
SEC EDGARCoStar Group annual report, Exhibit 21 (subsidiaries)
9
Wikimedia CommonsCoStar Group photo by Gian Lorenzo Ferretti, CC BY-SA 4.0
10
SEC EDGARCoStar Group 10-K for fiscal 2025
11
SEC EDGARCoStar Group 10-K for fiscal 2019
12
SEC EDGARCoStar Group 10-K for fiscal 2020
13
SEC EDGARCoStar Group 10-K for fiscal 2021
14
SEC EDGARCoStar Group 10-K for fiscal 2022
15
SEC EDGARCoStar Group 10-Q for fiscal 2026
16
SEC EDGARCoStar Group 10-Q for fiscal 2026
17
SEC EDGARCoStar Group 10-K for fiscal 2019
18
SEC EDGARCoStar Group 10-K filed Feb 26, 2026: Item 2, Properties
19
Wikidata and SEC EDGARAndy Florance, Chief executive officer
20
SEC EDGARFrederick G. Saint, President
21
SEC EDGARAndy Florance, President
22
SEC EDGARChristian M. Lown, Chief financial officer
23
SEC EDGARScott L. Yinger, Chief financial officer
24
SEC EDGARBrian J. Radecki, Chief financial officer
25
SEC EDGARFrancis Carchedi, Chief financial officer
26
SEC EDGARRobin Jack Rossmann, Chief Financial Officer
27
SEC EDGARCynthia Cammett Cann, Chief Accounting Officer
28
SEC EDGARFrank Simuro, Chief Technology Officer
29
SEC EDGARMichael J. Desmarais, Chief Human Resources Officer
30
SEC EDGARLisa Ruggles, Senior VP, Global Research
31
SEC EDGARMatthew Linnington, Executive Vice President Sales
32
SEC EDGARJohn L. Stanfill, Sr. VP-Sales, Customer Service
33
SEC EDGARFrancis Carchedi, Officer
34
SEC EDGARPaul Marples, Managing Director, FOCUS
35
SEC EDGARChristopher Tully, Sr. VP-Sales, Customer Service
36
SEC EDGARCraig Farrington, Vice President, Research
37
SEC EDGARJennifer Kitchen, Sr. Vice President, Research
38
SEC EDGARNana Banerjee, Board member
39
SEC EDGARChristine McCarthy, Board member
40
SEC EDGARJohn L. Berisford, Board member
41
SEC EDGARRachel C. Glaser, Board member
42
SEC EDGARAngelique G. Brunner, Board member
43
SEC EDGARLouise S. Sams, Board member
44
SEC EDGARRobert W. Musslewhite, Board member
45
SEC EDGARLaura Cox Kaplan, Board member
46
SEC EDGARMichael J. Glosserman, Board member
47
SEC EDGARMichael R. Klein, Board member
48
SEC EDGARCatherine Reynolds, Board member
49
SEC EDGARChristopher J. Nassetta, Board member
50
SEC EDGARDavid Bonderman, Board member
51
SEC EDGARJosiah O. Low Iii., Board member
52
SEC EDGARWarren H. Haber, Board member
53
SEC EDGARGene Boxer, General counsel
54
SEC EDGARRegulation FD disclosure
55
SEC EDGARResults of operations
56
SEC EDGARExecutive or director change; Regulation FD disclosure
57
SEC EDGARExecutive or director change; Shareholder vote; Regulation FD disclosure
58
SEC EDGAREntered a material agreement; Regulation FD disclosure
59
SEC EDGARResults of operations; Regulation FD disclosure
60
SEC EDGARExecutive or director change; Regulation FD disclosure
61
SEC EDGARResults of operations; Regulation FD disclosure
62
SEC EDGARExecutive or director change
63
SEC EDGARExecutive or director change; Regulation FD disclosure
64
SEC EDGARResults of operations; Regulation FD disclosure
65
SEC EDGARRegulation FD disclosure
66
NasdaqNasdaq calendar
67
SEC EDGARCoStar Group 8-K, Item 2.02 (results of operations)
68
SEC EDGARCoStar Group 8-K, Item 2.02 (results of operations)
69
SEC EDGARCoStar Group 8-K, Item 2.02 (results of operations)
70
SEC EDGARCoStar Group 8-K, Item 2.02 (results of operations)
71
SEC EDGARBAMCO INC /NY/ SCHEDULE 13G on CoStar Group
72
SEC EDGARVANGUARD CAPITAL MANAGEMENT LLC SCHEDULE 13G on CoStar Group
73
SEC EDGARVANGUARD PORTFOLIO MANAGEMENT LLC SCHEDULE 13G on CoStar Group
74
SEC EDGARVANGUARD GROUP INC SCHEDULE 13G/A on CoStar Group
75
SEC EDGARBlackRock SCHEDULE 13G/A on CoStar Group
76
SEC EDGARPRICE T ROWE ASSOCIATES INC /MD/ SC 13G/A on CoStar Group
77
SEC EDGARCoStar Group proxy statement (DEF 14A), 2025 pay

Overview

Financials

Key numbers, fiscal 2025

What sells

Business segments

Where the money goes

Where each dollar of revenue went, fiscal 2025

Where each dollar of operating cash went, fiscal 2025

Financial statements

Corporate structure

What it owns

Property and equipment

Investments

Intangibles and goodwill

Inventory

Properties, in its own words

Stakes and holdings (Wikidata)

The story

Origins

Growth and expansion

Other activities

Leadership

Chief executive

President

Chief financial officer

Products and brands

Subsidiaries and ownership

Owners

Subsidiaries

Also owns

Subsidiaries (Exhibit 21)

Acquisitions

Former names

Controversies and legal

Legal cases

Xceligent

CREXi

STR

Move, Inc.

Zillow

Timeline

Calendar

Coming up

When it reported results

Filings

Insider trades

Major holders

Executive pay

Held by these funds

Members of Congress who traded it

SEC filer profile

Securities registered for trading

Risk factors and legal proceedings

Legal proceedings

Links

Sources