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CoStar Group

csgp · NASDAQ Real Estate
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Sector Real Estate
Industry Real Estate - Services
Employees 1001-5000
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FY2023 Annual Report · CoStar Group
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

 Washington, D.C. 20549

FORM 10-K

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT

OF 1934

For the fiscal year ended December 31, 2023

OR

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934

☐

For the transition period from ______ to ______

Commission file number 0-24531

CoStar Group, Inc.

(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of incorporation or organization)

52-2091509
(I.R.S. Employer Identification No.)

1331 L Street, NW

Washington,

DC 20005

(Address of principal executive offices) (zip code)

(202) 346-6500

(Registrant’s telephone number, including area code)

 Securities registered pursuant to Section 12(b) of the Act:

Title of each class
Common Stock ($0.01 par value)

Trading Symbol
CSGP

Name of each exchange on which registered
Nasdaq Global Select Market

Securities registered pursuant to section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes No 

Yes No 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934

during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing
requirements for the past 90 days.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of

Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes    No  

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an
emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company"

Yes    No  

in Rule 12b-2 of the Exchange Act.

Large accelerated filer
Non-accelerated filer  




Accelerated filer
Smaller reporting company
Emerging growth company


☐
☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new

or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal
control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or
issued its audit report.

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the

filing reflect the correction of an error to previously issued financial statements.



Indicate by checkmark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received

by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b).





Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).     



Yes ☐   No 

As of June 30, 2023, the aggregate market value of the common stock (based upon the closing price of the stock on the Nasdaq Global Select Market) of

the registrant held by non-affiliates was approximately $36.0 billion. As of February 16, 2024, 408,409,321 shares of common stock were outstanding.

Portions of the registrant’s definitive proxy statement, which is expected to be filed with the Securities and Exchange Commission within 120 days after

the end of the registrant’s fiscal year ended December 31, 2023 are incorporated by reference into Part III of this Report.

DOCUMENTS INCORPORATED BY REFERENCE

1

PART I
Item 1.
Item 1A.
Item 1B.
Item 1C
Item 2.
Item 3.
Item 4.

PART II
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
Item 9C.

PART III
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.

PART IV
Item 15.
Item 16.

TABLE OF CONTENTS

Glossary of Terms

Business
Risk Factors
Unresolved Staff Comments
Cybersecurity
Properties
Legal Proceedings
Mine Safety Disclosures

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Reserved
Management’s Discussion and Analysis of Financial Condition and Results of Operations
Quantitative and Qualitative Disclosures about Market Risk
Financial Statements and Supplementary Data
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Controls and Procedures
Other Information
Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Directors, Executive Officers and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accountant Fees and Services

Exhibits and Financial Statement Schedules
Form 10-K Summary
Signatures
Index to Consolidated Financial Statements

2

F

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Glossary of Terms

The following abbreviations or acronyms used in this Annual Report on Form 10-K (this "Report") are defined below:

Abbreviation or Acronym
2020 Credit Agreement

Definition
The second amended and restated credit agreement, dated July 1, 2020, which amended and restated in its entirety the
then-existing credit agreement originally entered into on April 1, 2014, as amended by the first amendment to the second
amended and restated credit agreement, dated May 8, 2023.

ACH

ADR

Automated Clearing House

Average daily rate

Apartments.com Network

Apartments.com, the flagship brand of our network of apartment marketing sites, and its network of rental websites

ARS

ASC

ASU

Audit Committee

BizBuySell

Board

BureauxLocaux

Auction rate securities

Accounting Standards Codification

Accounting Standards Update

The Audit Committee of the Board

BizBuySell.com and its network of business for-sale websites

The CoStar Group Board of Directors

The legal entity, Comreal Info, a French société par actions simplifiée, the owner and operator of BureauxLocaux, a
commercial real estate digital marketplace, in France

BureauxLocaux Acquisition

CoStar UK's acquisition of BureauxLocaux completed on October 1, 2021 pursuant to a Share Sale and Purchase
Agreement dated October 1, 2021 between CoStar UK, M.A.J.E. Marketing & Strategie and an individual

Business Immo

The legal entity BIH, a French société par actions simplifiée, the owner and operator of Business Immo, a leading
commercial real estate news service provider in France

Business Immo Acquisition

CoStar UK's acquisition of the issued share capital of Business Immo on April 5, 2022

CAN-SPAM Act

Controlling the Assault of Non-Solicited Pornography and Marketing Act

CCPA

CECL

CMBS

CODM

California Consumer Privacy Act, as amended by the California Privacy Rights Act

Current expected credit losses

Commercial mortgage-based securities

Chief Operating Decision Maker

Confidential Information

CoStar Group

Information about customers, employees, contractors, suppliers, vendors, and others such as landlords and tenants,
including personal information such as names, addresses, phone numbers, email addresses, credit card information,
biometric data, sensitive or confidential transaction and account information, social security numbers, birthdates and
financial information (for example, to facilitate the apartment rental application and payment process between a renter an
property manager), as well as a broad range of proprietary and confidential business information, collectively

The legal entity, CoStar Group, Inc., a Delaware corporation, one or more of its consolidated subsidiaries or operating
segments, or the entirety of CoStar Group, Inc. and its consolidated subsidiaries

CoStar UK

The legal entity, CoStar UK Limited, a wholly owned subsidiary of CoStar Group

Covenant Suspension Period

A period of time defined in the 2020 Credit Agreement in which we maintain a corporate investment grade rating from
any two of Standard & Poor’s Rating Services, Fitch Ratings, Inc. or Moody’s Investors Services, Inc. and no event of
default is continuing

CPA

CPRA

Colorado Privacy Act

The California Privacy Rights Act

3

Abbreviation or Acronym
CRI

Definition
CoStar Realty Information, Inc., a Delaware corporation and wholly owned subsidiary of CoStar Group, Inc.

DSUs

E.U.

EBITDA

ESG

ESPP
EURIBOR
FASB
FCRA
FTC
GAAP
GDPR
GILTI
GPP Plan

Halo Merger Sub

Homes.com
Homes Group
Homes.com Acquisition

Homes.com Network

Homesnap

Homesnap, Inc.
Homesnap Acquisition

ILS
IT Systems

Land.com Network

Landmark
LIBOR
LoopNet Network

Deferred Stock Units

European Union

Net income before interest income or expense, net; other income or expense, net; loss on debt extinguishment; income
taxes; depreciation and amortization

Environmental, Social and Governance

Employee Stock Purchase Plan
Euro Interbank Offered Rate
Financial Accounting Standards Board
Fair Credit Reporting Act
Federal Trade Commission
Generally accepted accounting principles in the U.S.
General Data Protection Regulation
Global intangible low taxed income inclusion
A U.K. Group Personal Pension Plan
Snapped Halo Merger Sub Corp., a Delaware corporation and wholly owned subsidiary of CoStar Realty Information, In

A homes-for-sale listings site
The legal entity Homes Group, LLC
CRI's acquisition of Homes.com completed on May 24, 2021 pursuant to a securities purchase agreement dated April 14
2021 between Landmark, Homes Group, LLC and CRI

Homes.com, the flagship brand of our North American network of online platforms that manage workflow and marketin
for residential real estate agents and brokers and provide portals for homebuyers to view residential property listings

Homesnap is an online and mobile software platform that provides residential real estate professionals access to
applications that manage residential real estate agent workflow and marketing campaigns delivered on third-party
platforms acquired in the Homesnap Acquisition

The legal entity Homesnap, Inc., a Delaware corporation
CRI's acquisition of Homesnap completed on December 22, 2020, pursuant to an Agreement and Plan of Merger dated
November 20, 2020 between CRI, Halo Merger Sub Corp and Homesnap, Inc. Halo Merger Sub Corp. was merged with
and into Homesnap, Inc., with Homesnap, Inc. surviving the merger as a wholly-owned subsidiary of CRI

Internet listings services
Information technology networks, systems and infrastructure to process, transmit and store electronic information and to
communicate among our locations around the world and with our clients and vendors, collectively

Our network of sites featuring rural lands for sale including: LandsofAmerica, LandAndFarm and LandWatch

Landmark Media Enterprises, LLC
London Interbank Offered Rate
Our network of online marketplaces, including LoopNet.co.uk, CityFeet.com and Showcase.com, enabling commercial
property owners, landlords and real estate brokers working on their behalf to advertise properties for-sale or for-lease an
to submit detailed information about property listings

Matching RSUs

Awards of matching restricted stock units awarded under the Company's Management Stock Purchase Plan

MLS
MSPP

Multiple listing services
Management Stock Purchase Plan

4

Abbreviation or Acronym
OnTheMarket

Definition
The legal entity OnTheMarket Plc, the operator of onthemarket.com, a leading U.K. residential property portal.

OnTheMarket Acquisition

CoStar UK's acquisition of OnTheMarket completed in December 2023, pursuant to Rule 2.7 of the United Kingdom Ci
Code on Takeovers and Mergers. The acquisition has been implemented by means of a court-sanctioned scheme of
arrangement under the U.K. Companies Act 2006

RentPath
RevPAR
ROU
RRSP
SEC
Securities Act
SEM
Senior Notes
SEO
SOFR

SONIA
STAR Report

STR

TCPA
Ten-X
Ten-X Acquisition

Term SOFR
TSR
U.K.
U.S.
UCPA
VCDPA

RentPath Holdings, Inc.
Revenue per available room
Right-of-use
A Canadian registered retirement savings plan
U.S. Securities and Exchange Commission
Securities Act of 1933, as amended
Search Engine Marketing
2.800% notes issued by CoStar Group, Inc. due July 15, 2030
Search Engine Optimization
Secured Overnight Financing Rate
Sterling Overnight Index Average

A benchmarking tool used by the hospitality industry to compare a hotel's performance against a set of similar hotels in
the same geographical area

STR, LLC together with STR Global Ltd is a global data and analytics company that specializes in benchmarking hotel
performance and providing market insights to the industry

Telephone Consumer Protection Act (as implemented by the Telemarketing Sales Rule)
The legal entity Ten-X Holding Company, Inc. and its directly and indirectly owned subsidiaries
CRI's acquisition of Ten-X completed on June 24, 2020, pursuant to an Agreement and Plan of Merger dated May 13,
2020 between CRI, Crescendo Sub, Inc, and Ten-X

The forward-looking SOFR term rates administered by CME Group Benchmark Administration Limited

Total shareholder return
The United Kingdom of Great Britain and Northern Ireland
The United States of America
Utah Consumer Privacy Act
Virginia Consumer Data Protection Act

5

Cautionary Statement Concerning Forward-Looking Statements

We have made forward-looking statements in this Report and make forward-looking statements in our other reports filed with the SEC, press releases and
conference calls that are subject to risks and uncertainties. Forward-looking statements include information that is not purely historic fact and include, without
limitation,  statements  concerning  our  financial  outlook  for  the  year  ending  December  31,  2024  and  beyond,  our  possible  or  assumed  future  results  of
operations  generally  and  other  statements  and  information  regarding  assumptions  or  expectations  about  our  revenues,  revenue  growth  rates,  gross  margin
percentage,  net  income,  net  income  per  share,  fully  diluted  net  income  per  share,  EBITDA,  adjusted  EBITDA,  adjusted  EBITDA  margin,  non-GAAP  net
income, non-GAAP net income per diluted share, weighted-average outstanding shares, cash flow from operating activities, operating costs, capital and other
expenditures, the impact of current economic conditions on our revenues, revenue growth rates and profitability, key priorities for the year ending December
31, 2024, trends in customer behavior, legal proceedings and claims, legal costs, effective tax rate, product development and release, the anticipated benefits of
completed or proposed acquisitions, the anticipated timing of acquisition closings and integrations, the anticipated benefits of cross-selling efforts, geographic
and product expansion, planned service enhancements, expansion and development of our sales forces, planned sales and marketing activities and investments,
investments  in  residential  marketplace  services  and  our  residential  marketplace  strategy,  the  impact  or  results  of  sales  and  marketing  initiatives,  product
integrations, elimination and de-emphasizing of services, net new bookings, contract renewal rates, use of proceeds from equity and debt offerings, the use of
proceeds from any draws under our $750 million credit facility provided by the 2020 Credit Agreement, expectations regarding our compliance with financial
and  restrictive  covenants  in  the  2020  Credit  Agreement,  employee  relations,  management’s  plans,  goals  and  objectives  for  future  operations,  sources  and
adequacy  of  liquidity  and  growth  and  markets  for  our  stock.  Sections  of  this  Report  that  contain  forward-looking  statements  include  “Business,”  “Risk
Factors,” “Properties,” “Legal Proceedings,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” “Quantitative and
Qualitative Disclosures About Market Risk,” “Controls and Procedures” and the Consolidated Financial Statements and related Notes.

Our forward-looking statements are also identified by words such as “hope,” “anticipate,” “may,” “believe,” “expect,” “intend,” “will,” “should,” “plan,”
“estimate,” “predict,” “continue” and “potential” or the negative of these terms or other comparable terminology. You should understand that these forward-
looking  statements  are  estimates  reflecting  our  judgment,  beliefs  and  expectations,  not  guarantees  of  future  performance.  They  are  subject  to  a  number  of
assumptions, risks and uncertainties that could cause actual results to differ materially from those expressed or implied in the forward-looking statements. The
following  important  factors,  in  addition  to  those  discussed  or  referred  to  under  the  heading  “Risk  Factors,”  and  other  unforeseen  events  or  circumstances,
could affect our future results and could cause those results or other outcomes to differ materially from those expressed or implied in our forward-looking
statements:

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our inability to attract and retain new clients;
our inability to successfully develop and introduce new or updated information, analytics and online marketplace services;
our inability to compete successfully against existing or future competitors in attracting advertisers and in general;
competition;
the effects of fluctuations and market cyclicality;
the effects of global economic uncertainties and downturns or a downturn or consolidation in the real estate industry;
our inability to hire qualified persons for, or retain and continue to develop, our sales force, or unproductivity of our sales force;
our inability to retain and attract highly capable management and operating personnel;
the downward pressure that our internal and external investments may place on our operating margins;
our inability in increasing brand awareness;
our inability to maintain or increase internet traffic to our marketplaces, and the risk that the methods, including Google Analytics, that we use to
measure unique visitors to our portals may misstate the actual number of unique persons who visit our network of mobile applications and websites
for a given month or may differ from the methods used by competitors;
our inability to attract new advertisers;
our inability to successfully identify, finance, integrate and/or manage costs related to acquisitions;
the effects of cyberattacks and security vulnerabilities, and technical problems or disruptions;
the risks related to a large infrastructure project to build out our campus in Richmond, Virginia;
our inability to generate increased revenues from our current or future geographic expansion plans;
the risks related to acceptance of credit cards and debit cards and facilitation of other customer payments;
the effects of climate change and other events beyond our control;
the effects related to increased attention to ESG matters;
our inability to obtain and maintain accurate, comprehensive or reliable data;

6

•
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our ability to enforce or defend our ownership and use of intellectual property;
our  inability  to  successfully  halt  the  operation  of  websites  that  aggregate  our  data,  data  from  other  companies  or  “copycat”  websites  that  may
misappropriate our data;
our inability to defend against potential legal liability for collecting, displaying or distributing information;
our inability to obtain or retain listings from real estate brokers, agents, property owners and apartment property managers;
our ability to maintain or establish relationships with third-party listing providers;
our ability to comply with the rules and compliance requirements of MLSs;
the risks related to international operations;
the effects of foreign currency fluctuations;
the effects of Brexit;
our indebtedness;
the effects of a lowering or withdrawal of the ratings assigned to our debt securities by rating agencies;
the effects of any actual or perceived failure to comply with privacy or data protection laws, regulations or standards;
the effects of changes in tax laws, regulations or fiscal and tax policies;
the effects of third-party claims, litigation, regulatory proceedings or government investigations; and
risks related to return on investment.

Accordingly, you should not place undue reliance on forward-looking statements, which speak only as of, and are based on information available to us on,
the date of this Report. All subsequent written and oral forward-looking statements attributable to us or any person acting on our behalf are expressly qualified
in their entirety by the cautionary statements contained or referred to in this section. We do not undertake any obligation to update any such statements or
release publicly any revisions to these forward-looking statements to reflect new information or events or circumstances after the date of this Report or to
reflect the occurrence of unanticipated events.

Item 1.    Business

PART I

In  this  Report,  the  words  “we,”  “our,”  “us,”  “CoStar  Group”  or  the  “Company”  refer  to  CoStar  Group,  Inc.  and  its  direct  and  indirect  wholly  owned

subsidiaries. This Report also refers to our websites, but information contained on those sites is not part of this Report.

CoStar Group, founded in 1987, is a leading provider of online real estate marketplaces, information and analytics in the U.S. and U.K. based on the fact
that we own and operate leading online marketplaces for commercial real estate and apartment listings in the U.S., based on the numbers of unique visitors
and site visits per month; provide more information, analytics and marketing services than any of our competitors; offer the most comprehensive commercial
real estate database available; and have the largest commercial real estate research department in the industry. We have created and compiled a standardized
platform  of  information,  analytics  and  online  marketplace  services  where  industry  professionals  and  consumers  of  commercial  real  estate,  including
apartments, and the related business communities, can continuously interact and facilitate transactions by efficiently accessing and exchanging accurate and
standardized real estate-related information. Our service offerings span all commercial property types, including office, retail, industrial, multifamily, land,
mixed-use and hospitality. Through our Homes.com Network and our acquisition of OnTheMarket, we also offer online platforms that manage workflow and
marketing for residential real estate agents and brokers and provide portals for homebuyers to view residential property listings.

Industry Overview

The market for real estate information and analysis is vast, based on the variety, volume and value of transactions related to real estate. Each transaction
has multiple participants and multiple information requirements, and in order to facilitate transactions, industry participants must have extensive, accurate and
current information and analysis. Members of the real estate and related business community require daily access to current data such as space availability,
properties for-sale, rental units available, rental rates, vacancy rates, tenant movements, comparable sales, supply, new construction, absorption rates and other
important market developments to carry out their businesses effectively. Market research (including historical and forecast conditions) and applied analytics
are  instrumental  to  the  success  of  industry  participants.  There  is  a  strong  need  for  an  efficient  marketplace,  where  real  estate  professionals  can  exchange
information, evaluate opportunities using standardized data and interpretive analyses and interact with each other on a continuous basis.

A large number of parties involved in commercial and residential real estate and the related business community make use of the services we provide in

order to obtain information they need to conduct their businesses, including:

7

• Sales and leasing brokers
• Property owners
• Property managers
• Design and construction professionals
• Real estate developers
• Real estate investment trust managers
Investment and commercial bankers
•
• Mortgage bankers
• Mortgage brokers
• Retailers
• Hospitality owners
• Real estate agents

• Government agencies
• Mortgage-backed security issuers
• Appraisers
• Pension fund managers
• Reporters
• Tenant vendors
• Building services vendors
• Communications providers
•
•
•

Insurance companies’ managers
Institutional advisors
Investors and asset managers

The  commercial  real  estate  and  related  business  community  historically  operated  in  an  inefficient  marketplace  because  of  the  fragmented  approach  to
gathering and exchanging information within the marketplace. Various organizations, including hundreds of brokerage firms, directory publishers and local
research  companies,  collected  data  on  specific  markets  and  developed  software  to  analyze  the  information  they  independently  gathered.  This  highly
fragmented  methodology  resulted  in  duplication  of  efforts  in  the  collection  and  analysis  of  information,  excessive  internal  cost  and  the  creation  of  non-
standardized data containing varying degrees of accuracy and comprehensiveness, resulting in a formidable information gap.

The creation and maintenance of a standardized information platform for commercial real estate requires infrastructure including a standardized database,
accurate  and  comprehensive  research  capabilities,  experienced  analysts,  easy-to-use  technology  and  intensive  participant  interaction.  By  combining  our
extensive database, researchers, our experienced team of analysts and economists, technological expertise and broad customer base, we believe that we have
created such a platform.

The apartment rental advertising industry serves property managers and owners who are tasked with finding renters to occupy vacant apartments, as well
as renters who are searching for their next home. Property managers have several options at their disposal, including their own websites, drive-by and outdoor
advertising, traditional classified ads, free online listing services, search engine marketing and ILS, like Apartments.com and the network of apartment listing
websites we own and operate. Many apartment ILS websites feature only the rental availabilities that larger property owners pay to advertise, resulting in a
poor  user  experience  in  which  the  renter’s  search  criteria  return  either  limited  or  no  results,  irrelevant  results  or  stale  results  that  do  not  represent  actual
availabilities.

We  believe  that  consumers  expect  accurate,  actionable  and  comprehensive  apartment  rental  information.  Our  apartment  ILS  websites  include  renter-
focused  features  like  the  ability  to  filter  search  results  according  to  various  criteria  (e.g.,  commute  time  to  work);  professional  images  of  the  properties,
including immersive videos and 3-D interactive models; custom neighborhood profiles; and tenant reviews. Our network of apartment listing websites draws
on our multifamily database and includes researched and verified information. We proactively gather information on available rentals to improve the accuracy
of the listings on our apartment ILS websites, including real time unit-level availability, current pricing and rent specials. We have continually invested in our
network to improve the features and services offered to property managers and website users. Recent additions include: dynamic lead forms that provide more
information about prospective residents, making rent trends information publicly available, free digital ad retargeting and integrated online rental solutions,
including lease applications with tenant credit and background checks. We believe that we have created and maintain easily searchable apartment ILS websites
with a comprehensive selection of rentals, information on actual rental availabilities and rents and in-depth data on neighborhoods, as well as easy to use and
actionable tools for the rental process.

We believe that consumers expect accurate, actionable and comprehensive homes-for-sale information on a platform that allows collaboration between
homebuyers and agents. Our residential websites include homebuyer-focused features like the ability to filter search results according to various criteria (e.g.,
home  features,  view  and  lot  type),  review  rankings  of  nearby  schools  and  tools  to  educate  consumers  on  the  home  buying  process.  We  plan  to  develop
original, media-rich content of neighborhoods, schools, parks and condominium buildings' amenities and common areas to supplement information in agent
listings. We are designing tools to facilitate collaboration between homebuyers and agents.

8

Strategy

Our strategy is to provide real estate industry professionals and consumers with critical knowledge to explore and complete transactions by offering the
most comprehensive, timely and standardized information on real estate and the right tools to be able to effectively utilize that information. Over time, we
have expanded, and we continue to expand, our services for real estate information, analytics and online marketplaces in an effort to continue to meet the
needs of the industry as it grows and evolves.

Our  standardized  platform  includes  the  most  comprehensive  proprietary  database  of  commercial  real  estate  information  in  the  industry;  the  largest
research department in the commercial real estate industry; proprietary data collection, information management and quality control systems; a large in-house
product development team; a broad suite of web-based information, analytics and online marketplace services; a large team of analysts and economists; risk
management tools; and a large, diverse base of clients. Our database has been developed and enhanced for more than 35 years by a research department that
makes daily database updates. In addition to our internal efforts to grow the database, we have obtained and assimilated a number of proprietary databases.
Our comprehensive commercial real estate database powers our information services, sources data used in our analytic services and provides content for most
of  our  online  marketplace  services  and  our  auction  platform.  Our  ability  to  utilize  the  same  commercial  real  estate  information  across  our  standardized
platform creates efficiencies in operations and improves data quality for our customers.

We deliver our comprehensive commercial real estate information content to our customers primarily via an integrated solution of online service offerings
that  includes  information  about  space  available  for-lease,  comparable  sales  information,  information  about  properties  for-sale,  tenant  information,  internet
marketing  services,  risk  management  tools,  analytical  capabilities,  information  for  clients’  websites,  information  about  industry  professionals  and  their
business  relationships,  data  integration  and  industry  news.  We  also  operate  complementary  online  marketplaces  for  commercial  and  residential  real  estate
listings and apartment rentals, as well as a commercial real estate auction platform. We strive to cross-sell our services to our customers in order to best suit
their needs.

We manage and report our business geographically in two operating segments, with our primary areas of measurement and decision-making being North
America, which includes the U.S. and Canada, and International, which primarily includes Europe, Asia-Pacific and Latin America. Information about our
revenues, long-lived assets and total assets derived from and located in foreign countries is included in Notes 2, 3 and 14 of the Notes to the Consolidated
Financial Statements included in Part IV of this Report. Revenues, EBITDA and total assets and liabilities for each of our segments are set forth in Notes 3
and  14  of  the  Notes  to  the  Consolidated  Financial  Statements,  included  in  Part  IV  of  this  Report.  Information  about  risks  associated  with  our  foreign
operations is included in “Item 1A. Risk Factors” and “Item 7A. Quantitative and Qualitative Disclosures about Market Risk” in this Report.

CoStar’s Comprehensive Database

We  have  spent  more  than  35  years  building  and  acquiring  databases  of  commercial  real  estate  information,  which  includes  information  on  properties,
leasing,  sales,  comparable  sales,  tenants  and  demand  statistics,  as  well  as  digital  images,  drone  videos  and  3-D  tours.  This  highly  complex  database  is
comprised of hundreds of data fields, tracking such categories as location, site and zoning information, building characteristics, space and unit characteristics
and  availability,  tax  assessments,  true  ownership,  sales  and  lease  comparables,  multi-family  rents,  vacancies  and  concessions,  space  requirements,  retail
locations, mortgage and deed information, for-sale and for-lease listings, fund data, income and expense histories, tenant names, tenant credit scores, view of
company  locations,  lease  expirations,  contact  information,  historical  trends,  forecasts  and  demographic  information.  The  database  also  includes  building
photographs, aerial photographs and videos, 3-D virtual tours, plat maps and floor plans.

CoStar Research

Research  Department.  Our  research  professionals  undergo  an  extensive  training  program  so  that  we  can  maintain  consistent  research  methods  and
processes  throughout  our  research  department.  Our  researchers  collect  and  analyze  commercial  real  estate  information  through  phone  calls,  e-mails  and
additional research methods including field inspections, public records review, news monitoring, third-party data feeds and user entered content. We have also
set up direct feeds from larger apartment sites, owners and brokers, and have put in place an automated system that compiles information sourced from the
internet in order to provide the most up-to-date information.

Our researchers are responsible for maintaining the accuracy and reliability of our database information, training our clients to use CoStar Group products
and  handling  their  customer  service  questions,  creating  a  "one  touch"  approach  to  customer  care.  Because  of  the  importance  commercial  real  estate
professionals place on our data and our prominent position in the industry,

9

many of these professionals routinely take the initiative and proactively report available space and transactions through our online tool, which we refer to as
our Marketing Center, or directly to our researchers.

Our field research efforts include physical inspections of properties in order to research new availabilities, find additional property inventory, identify new
construction, collect tenant information, verify existing information, photograph properties and create high quality videos of interior spaces (including walk-
through videos and 3-D virtual tours), amenities and exterior features of properties. Our field researchers are equipped with high resolution digital cameras
and  handheld  laser  instruments  to  precisely  measure  buildings  and  geo-code  and  position  them  on  digital  maps. A  typical  site  inspection  of  a  commercial
property consists of photographing the building, capturing interior images, videos and 3-D tours, measuring the building, geo-coding the building, capturing
“for-sale”  or  “for-lease”  sign  information,  counting  parking  spaces,  assessing  property  condition  and  construction  and  gathering  tenant  information.  Field
researchers also canvass properties, collecting tenant data suite-by-suite. We also utilize a low-flying airplane and a fleet of drones to conduct aerial research
of commercial real estate. We place researchers on the low-flying aircraft to scout new commercial developments and take aerial photographs and videos. Our
U.S. drone operators are Federal Aviation Administration certified and trained to capture aerial photographs and videos. Our drone operators in the U.K. and
Canada  are  certified  and  trained  to  Civil  Aviation  Authority  and  Transport  Canada  standards,  respectively,  with  a  permission  for  commercial  operations
pending.

We  are  leveraging  our  capabilities  developed  from  our  extensive  commercial  real  estate  research  efforts  to  produce  original,  media  rich  content  of
neighborhoods, schools, parks and condominium buildings' amenities and common areas for our residential products using professional photographers and a
fleet of drones to conduct aerial research of residential real estate.

Data  and  Image  Providers.  We  license  a  small  portion  of  our  data  and  images  from  public  record  providers  and  third-party  data  sources.  Licensing
agreements with these entities allow us to use a variety of commercial real estate information, including property ownership, tenant information, demographic
information, maps, aerial photographs and 3-D virtual apartment tours of apartment communities, all of which enhance our services. These license agreements
generally  grant  us  a  non-exclusive  license  to  use  the  data  and  images  in  the  creation  and  supplementation  of  our  information,  analytics  and  online
marketplaces.

Management  and  Quality  Control  Systems.  Our  research  processes  include  automated  and  non-automated  controls  to  ensure  the  integrity  of  the  data
collection  process. A  large  number  of  automated  data  quality  tests  check  for  potential  errors,  including  occupancy  date  conflicts,  available  square  footage
greater than building area, typical floor space greater than building area and expired leases. We also monitor changes to critical fields of information to ensure
all information is kept in compliance with our standard definitions and methodology. Our non-automated quality control procedures include:

•

•

•

•

•

Calling our information sources on recently updated properties to re-verify information;

Reviewing recorded or live listen phone calls (in states where applicable) to ensure information was properly sourced and correctly captured;

Performing periodic research audits and field checks to determine if we correctly canvassed buildings;

Providing training and retraining to our research professionals to ensure accurate and standardized data compilation; and

Compiling measurable performance metrics for research teams and managers for feedback on data quality.

Finally, one of the most important and effective quality control measures we rely on is feedback provided by the commercial real estate professionals

using our data every day.

Services

Our portfolio of information, analytics and online marketplaces is branded and marketed to our customers and marketplace end users under the primary
brands of CoStar, LoopNet, Apartments.com, Homes.com, OnTheMarket,Ten-X, STR. Land.com and BizBuySell. Our services are accessible via the internet
and through our mobile applications. Our services are primarily derived from a database of building-specific information and offer customers specialized tools
for  accessing,  analyzing  and  using  our  information.  Over  time,  we  have  enhanced  and  expanded,  and  we  expect  to  continue  to  enhance  and  expand,  our
existing information, analytics and online marketplace services. We have developed and we expect to continue to develop additional services leveraging our
database to meet the needs of our existing customers as well as potentially new categories of customers.

Our principal information, analytics and online marketplace services are described in the following paragraphs:

10

CoStar

CoStar is our subscription-based integrated platform for commercial real estate intelligence, which includes information about office, industrial, retail,
multifamily, hospitality and student housing properties, properties for sale, comparable sales, tenants, space available for lease, industry professionals and their
business relationships, industry news and market status and provides lease analysis, risk management, and hospitality benchmarking capabilities. CoStar is our
largest service offering in our North America and International operating segments and contains the following tools and features.

•

•

•

•

Properties provides a comprehensive inventory of office, industrial, retail, multifamily, hospitality and student housing properties and land. We also
provide for-lease and for-sale listings, historical data, property analytics, building photographs, demographics, maps and floor plans. Commercial real
estate professionals use this tool to identify available space for-lease, evaluate leasing and sale opportunities, value assets and position properties in
the marketplace. Our clients also use this feature to analyze market conditions by calculating current vacancy rates, absorption rates or average rental
rates, and forecasting future trends based on user-selected variables with powerful map-based search and reporting capabilities.

Leasing provides subscribers with comprehensive data on CoStar researched lease transactions and a software tool to capture, manage and maintain
their own user-entered lease data, and provides subscribers the ability to analyze this combined lease dataset from an aggregate analytic perspective
and generate various reports. In addition, subscribers can incorporate their own data to perform in-depth lease analyses and share those analyses with
other  subscribers  or  non-subscribers.  This  tool  can  be  used  to  produce  an  understandable  cash  flow  analysis  as  well  as  key  metrics  about  any
proposed or existing lease. It combines financial modeling with CoStar’s comprehensive property information, enabling the subscriber to compare
lease alternatives, either from a landlord or tenant perspective.

Sales is a robust database of commercial real estate sales transactions and is designed for professionals who need to research property comparables,
identify market trends, expedite the appraisal process and support property valuations. This feature offers subscribers numerous fields of property
information,  access  to  support  documents  (e.g.,  deeds  of  trust)  for  new  comparables,  demographics  and  the  ability  to  view  for-sale  properties
alongside sold properties plotted on a map, aerial image or in a table format.

Tenants  is  a  detailed  online  business-to-business  prospecting  and  analytics  tool.  providing  commercial  real  estate  professionals  with  the  most
comprehensive commercial real estate-related tenant information available in our North American markets. CoStar Tenant profiles tenants occupying
space in commercial buildings and provides updates on lease expirations - one of the service’s key features - as well as occupancy levels, growth
rates and numerous other facts. This allows users to target prospective clients quickly through a searchable database that identifies only those tenants
meeting certain criteria.

• Market  Analytics  provides  owners,  investors,  brokers,  property  managers,  lenders,  appraisers  and  other  commercial  real  estate  professionals  the
ability to view and report on aggregated market and submarket trends, including leasing, vacancy, rental rates, construction, investment sales activity
and overall economic conditions that affect commercial real estate markets. Market Analytics covers all major real estate sectors including office,
industrial, retail, multifamily, hospitality and student housing, and provides quantitatively driven and economist curated forecasts of supply, demand,
vacancy and rent at the submarket level, and job growth and asset pricing at the market level.

•

•

•

Public Record provides access to a searchable database of commercially-zoned parcels in the U.S. Users can search for property attributes and sales
transaction, loan, lien and tax assessment information. Information in this module is sourced from numerous counties and jurisdictions that provide
this data for ownership, title and property tax assessment purposes.

Benchmarking  provides  hospitality  benchmarking,  measuring  a  hotel’s  performance  against  a  self-selected  aggregated  competitive  set.  These
confidential  data  reports  enable  customers  to  understand  their  market  position  based  on  trends  and  indices.  Reports  are  provided  on  a  monthly,
weekly  or  daily  basis,  and  provide  insights  about  key  metrics  such  as  occupancy,  ADR  and  RevPAR.  Benchmarking  results  are  only  available  to
industry participants who provide us with data. These participants are typically hotel brands, third-party management companies and owners.

Lender provides lenders the tools to manage their loan portfolio and risk. These tools automatically connect the user's portfolio to CoStar's research,
market analytics and proprietary COMPASS credit default model, as well as their own data sets, to enable portfolio surveillance, concentration risk
monitoring, stress testing and expected credit loss modeling and to support loan originations and underwriting.

11

Information Services

We provide real estate and lease management technology solutions, including lease administration, lease accounting and abstraction services, through our
CoStar  Real  Estate  Manager  service  offerings,  as  well  as  portfolio  and  debt  analysis,  management  and  reporting  capabilities  through  our  CoStar  Risk
Analytics service offerings. We also provide benchmarking and analytics for the hospitality industry both on a subscription basis and an ad hoc basis. We earn
revenue on ad hoc transactions as reports or data are delivered to the customer. We provide information services internationally, through our Business Immo,
Belbex and Thomas Daily businesses in France, Spain and Germany, respectively.

•

•

CoStar Real Estate Manager is a real estate lease administration, portfolio management and lease accounting compliance software solution designed
for corporate real estate managers, company executives, financial accounting directors, business unit directors, brokers and project managers. CoStar
Real Estate Manager helps users connect real estate initiatives with company strategic goals, streamline portfolio operations, reduce occupancy costs
with  analytics 
through  proactive  portfolio
management. Additionally, the software is used to help companies manage their lease accounting compliance and reporting requirements.

location  performance  against 

targets  and  maximize 

location  performance 

track 

that 

CoStar Risk Analytics is a trusted partner to many of the largest commercial real estate lenders and CMBS market participants, providing timely data,
advanced  analytics,  time-proven  models  and  extensive  experience  to  support  regulatory  examinations,  risk  management  and  strategic  decision
making. CoStar Risk Analytics' COMPASS credit default model has been used by commercial real estate lenders, CMBS participants and regulators
for over 15 years to estimate required loss reserves, stress test portfolios, generate risk ratings, calculate capital adequacy, underwrite loans, target
lending opportunities and price CMBS bonds. Our clients rely on CoStar Risk Analytics for model validations and reporting to support regulatory
examinations. Additionally, CoStar Risk Analytics solutions connect client loan and CMBS loan portfolios to CoStar’s industry-leading commercial
real  estate  data,  research,  analytics  and  the  COMPASS  credit  model,  updated  daily,  for  more  informed  decision  making,  portfolio  strategy  and
surveillance. Clients of CoStar Risk Analytics solutions include many of the largest banks, life insurance companies, asset managers, hedge funds,
government agencies and regulators.

Multifamily

Apartments.com, the flagship brand of our network of apartment marketing sites, provides a variety of ad packages and enhancements that allow property
managers  and  owners  to  fully  showcase  their  apartment  community  through  increased  exposure  and  interactions  that  allow  renters  to  view,  engage  and
connect with the community. Apartments.com also provides tools to facilitate the rental process, including online tenant applications with background and
credit checks and rental payment processing. The Apartments.com Network consists of numerous other apartment marketing sites, including:

•

•

•

•

ApartmentFinder  provides  lead  generation,  advertising  and  internet  marketing  solutions  to  property  managers  and  owners  through  its  main  site,
ApartmentFinder.com.

ForRent.com  provides  digital  advertising  through  a  network  of  four  multifamily  websites,  which  includes  ForRent.com,  AFTER55.com,
CorporateHousing.com and ForRentUniversity.com.

ApartmentHomeLiving.com provides renters with another national online apartment rental resource that showcases apartments for rent with official
prices, pictures, floor plans and detailed information on each apartment.

Apartamentos.com provides  Spanish  speaking  renters  with  an  online  apartment  rentals  resource  offered  exclusively  in  Spanish,  with  the  same
primary features found on Apartments.com.

TM 

• WestsideRentals.com specializes in Southern California real estate rentals.

• Off Campus Partners provides student housing marketplace content and technology to U.S. universities, simplifying the off-campus housing search

process for universities, property managers and students.

Our apartment marketing network of subscription-based advertising services provides property owners, professional property management companies and
landlords with a comprehensive advertising destination for their available rental units and offers renters a platform for searching for available rentals. Our
apartment marketing network draws on and leverages our multifamily database, which contains detailed information on apartment properties and is designed
to meet renter preferences and demands, in order to drive traffic to those sites and attract advertisers who prefer to advertise on heavily trafficked apartment
websites. Our network of apartment marketing sites provides a comprehensive selection of rentals, information on actual availabilities and rents and in-depth
data on neighborhoods, including restaurants, nightlife, history, schools and other

12

 
facts important to renters. To help renters find the information that meets their needs, our sites also offer innovative search tools such as the Polygon Search
tool,  which  allow  renters  to  specifically  define  the  area  in  which  they  want  to  find  an  apartment  and  Plan  Commute  tools,  which  allow  renters  to  search
property listings that meet their transportation needs. We also offer complementary services to the rental industry, including the ability for renters to apply for
rentals online and for landlords to receive applications, screen tenants and process rental payments and lease renewals.

LoopNet

LoopNet  is  the  flagship  brand  in  our  network  of  commercial  real  estate  marketing  sites,  which  also  includes  LoopNet.co.uk,  CityFeet.com  and
Showcase.com. Our LoopNet online marketplace enables commercial property owners, landlords and real estate brokers working on their behalf to advertise
properties for-sale or for-lease and to submit detailed information about property listings. Commercial real estate brokers, buyers and tenants use LoopNet
extensively  to  search  for  available  property  listings  that  meet  their  criteria.  LoopNet  offers  unique,  subscription-based  advertising  solutions  for  different
segments  within  the  industry  and  delivers  value  across  its  constituent  networks.  The  LoopNet  network  leverages  CoStar  Group’s  commercial  real  estate
database  to  provide  in-depth  and  accurate  information  across  all  commercial  property  types,  including  office,  industrial,  retail,  multifamily,  specialty,
healthcare, hospitality, sports and entertainment, land and residential. Investors and tenants are also able to consume industry news developed by our in-house
editorial team.

LoopNet  Premium  Lister  is  designed  for  commercial  real  estate  professionals  and  other  customers  who  seek  the  broadest  possible  exposure  for  their
listings,  access  to  leads  lists  and  advanced  marketing  and  searching  tools.  LoopNet  Premium  Lister  provides  subscribers  with  the  ability  to  market  their
listings to all LoopNet.com visitors, as well as numerous other features. LoopNet Premium Lister is available for a quarterly or annual subscription.

LoopNet Diamond, Platinum and Gold Ads are designed for commercial real estate professionals and other customers who seek the broadest possible
exposure for their listings, access to leads lists and advanced marketing and searching tools. These LoopNet Ads provide subscribers with full access to our
LoopNet  network  as  well  as  retargeting  across  a  network  of  prominent  sites  including  the  Wall  Street  Journal,  Forbes  and  Bloomberg.  LoopNet  Ads  are
available for a six-month or annual subscription.

Our  international  subscription-based  online  marketplaces  are  Loopnet.co.uk  in  the  U.K.,  BureauxLocaux  in  France  and  Belbex.com  in  Spain.  These
marketplaces provide listings of commercial properties for rent and for sale ranging from traditional offices, serviced offices, co-working spaces, hot-desks,
retail locations, industrial units, leisure, hotels and warehousing.

Residential

Our Homes.com Network and the acquisition of OnTheMarket have enabled us to expand our offerings to the residential for sale market. Homes.com is a
homes for sale listings site that combines our proprietary research with listing information to allow homebuyers an informative and collaborative experience
finding homes for sale or lease. Homes.com provides residential real estate professionals subscription-based access to applications that manage residential real
estate agent workflow and receives transaction-based revenue for marketing campaigns delivered on third-party platforms. In February 2024, we began selling
memberships that allow agents to connect with prospective homebuyers sourced from the agent's own listings. OnTheMarket is a property portal in the U.K.
which primarily offers subscriptions-based advertising services to agents.

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Other Marketplaces

Ten-X operates an online auction platform for commercial real estate. Our platform provides brokers, sellers, and buyers access to data-driven technology
and marketing tools to expand market visibility and decrease time to close. The platform allows brokers and sellers to onboard assets, evaluate the results of
complimentary marketing campaigns and follow up on pre-qualified leads. Buyers can search for properties that meet their investment goals and are given
access to market analysis and due diligence documents.

Land.com is the flagship brand in our network of marketplaces for rural lands for-sale sites, which also includes LandsofAmerica , LandAndFarm and

TM 

TM

LandWatch . Sellers pay a fee to list their land for-sale, and interested buyers can search the respective sites' listings.

®

BizBuySell  is  the  flagship  brand  in  our  network  of  marketplaces  for  operating  businesses  and  franchises  for-sale,  which  also  includes  BizQuest  and
FindaFranchise. Business sellers pay a fee to list their operating businesses for-sale, and interested buyers can search the respective sites' listings for free. The
BizBuySell,  BizQuest  and  FindaFranchise  Franchise  Directories  allow  interested  business  buyers  to  search  hundreds  of  franchise  opportunities,  and
franchisors can list their availabilities in the directory on a cost per lead basis.

We  also  provide  other  services  that  complement  those  offered  by  our  primary  brands.  These  include:  real  estate  and  lease  management  technology
solutions, lease administration, transaction and project management and lease accounting, through our CoStar Real Estate Manager service offerings; market
research, consulting and analysis, portfolio and debt analysis and management and reporting capabilities through our CoStar Investment Analysis and CoStar
Risk Analytics service offerings; and benchmarking and analytics for the hospitality industry through our STR offerings.

Our services are typically distributed to our clients under subscription-based license agreements that typically renew automatically, a majority of which
have a term of at least one year. Upon renewal, many of the subscription contract rates may change in accordance with contract provisions or as a result of
contract renegotiations. To encourage clients to use our services regularly, we generally charge a fixed monthly amount for our subscription-based services
rather than charging fees based on actual platform usage or number of paid clicks. Depending on the type of service, contract rates are generally based on the
number of sites, number of users, organization size, the client's business focus, the client's geographic location, the number and types of services to which a
client subscribes, the number of properties a client advertises and the prominence and placement of a client's advertised properties in the search results. Our
subscription  clients  generally  pay  contract  fees  on  a  monthly  basis,  but  in  some  cases  may  pay  us  on  a  quarterly  or  annual  basis.  Our  transaction-based
services primarily consist of auction fees from our Ten-X online auction platform for commercial real estate, which are generally calculated as a percentage of
the final sales price for the commercial real estate property sold and recognized as revenue upon the successful closure of an auction. We generally see higher
sales of Apartments.com listing services during the peak summer rental season and higher CoStar sales towards the end of the year; however, sales fluctuate
from year-to-year and revenue is not generally seasonal because our services are typically sold on a subscription basis.

Clients

We draw clients from across the real estate and related business community, including real estate brokers, agents, owners, developers, landlords, property
managers, financial institutions, retailers, vendors, appraisers, investment banks, government agencies and other parties involved in real estate. For both the
years ended December 31, 2023 and 2022, no single client accounted for more than 5% of our revenues.

Sales and Marketing

Our overall sales strategy is to provide optimal service to our existing customers, attract new clients and cross-sell the numerous solutions we offer. Our
sales  teams  sell  multiple  products  and  are  primarily  located  in  field  sales  offices  throughout  the  U.S.,  with  others  in  Canada,  the  U.K.,  Spain,  France  and
Germany.  Our  inside  sales  teams  are  largely  based  in  Washington,  DC  and  Richmond,  Virginia.  Our  inside  sales  professionals  actively  work  lead  lists,
prospect for new customers and perform in-person and virtual product demonstrations to convey the multiple solutions we offer.

Our local offices typically support field sales and field research operations within the markets in which they operate. This enables our clients to benefit
from a local presence. Our field sales force has the primary front-line responsibility for customer service, ensuring client satisfaction and building long-term
relationships. Our local offices act as hubs for training, sources of market insight, product feedback sessions and connecting industry participants.

14

We  actively  manage  client  accounts  with  frequent  meetings,  product  trainings  and  updates  on  new  enhancements  to  our  solutions.  In  2023,  we
successfully implemented a number of important sales initiatives focused on selling our products to brokers, property owners and lenders in the U.S. This
focus will continue in 2024.

Our  primary  marketing  methods  include:  in  person  and  virtual  service  demonstrations;  targeted  paid  digital  marketing;  retargeting  and  social  media
marketing; direct marketing, such as email; communication via our corporate website, campaign-specific websites and news services; participation in virtual
trade  shows  and  industry  events;  Company-sponsored  events;  client  referrals;  content  marketing  including  webinars,  seminars  and  white  papers  and  other
product-specific company newsletters distributed via email to our clients and prospects.

Comprehensive digital marketing and direct marketing are effective means for us to find prospective clients. Our digital marketing efforts include SEO,
targeted paid advertising with major search engines, social media and display advertising on commercial real estate industry news and business websites and
mobile applications and our direct marketing efforts include television, radio, out-of-home ads, direct mail and email and, when applicable, make extensive
use  of  our  unique,  proprietary  database.  Once  we  have  identified  a  prospective  client,  our  most  effective  sales  method  is  a  service  demonstration.  We  use
various forms of integrated marketing and advertising to build brand awareness, brand identity and reinforce the value and benefits of our services.

We also sponsor and attend local in person and virtual association activities and events, including events for commercial real estate brokers, residential
real estate agents, property owners, investors and retail and financial services institutions, and attend or exhibit at virtual industry trade shows and conferences
to reinforce our relationships with our core user groups.

To generate brand awareness and site traffic for the Apartments.com network of rental websites, we utilize a multi-channel marketing campaign featuring
television and radio ads, online and digital advertising impressions, streaming audio and podcasts, social media, email, public relations and news articles, out-
of-home  and  paid  search  marketing,  all  of  which  are  reinforced  with  substantial  SEO  efforts.  We  plan  to  continue  to  utilize  these  marketing  methods  to
generate brand awareness and site traffic for the Apartments.com Network and have implemented similar marketing strategies for LoopNet and Ten-X. To
generate brand awareness and site traffic for our residential products, we utilize digital advertising impressions, social media and paid search marketing, all of
which are reinforced with SEO efforts. We will continue to work to determine the optimal level of marketing investment for each of these services for future
periods.

To encourage clients to use our services regularly, we generally charge a fixed monthly amount for our subscription-based information services rather than
fees based on actual system usage. Contract rates for subscription-based services are generally based on the number of sites, number of users, organization
size,  the  client’s  business  focus,  geography  and  the  range  of  subscription  services.  Our  marketing  solutions  are  priced  by  exposure  levels,  the  number  of
properties/spaces  for-lease,  rent  or  sale  and  the  market  in  which  they  are  offered.  Listings  for  customers  who  purchase  packages  with  the  highest  level  of
exposure  usually  appear  first  in  search  results  and  offer  the  richest  media  content  and  engagement  opportunities  for  tenants  searching  for  space,  renters
looking for an apartment or investors seeking an opportunity. Our subscription clients generally pay contract fees on a monthly basis, but in some cases may
pay us on a quarterly or annual basis.

Expansion and Growth

Acquisitions

We have expanded and continue to expand the coverage and depth of our information, analytics and online marketplace services. In addition to organic
growth,  we  have  grown  our  business  through  strategic  acquisitions.  We  acquired  Homes.com,  BureauxLocaux,  Business  Immo  and  OnTheMarket  in  May
2021, October 2021, April 2022 and December 2023, respectively. We continue to integrate our recent acquisitions and the services they offer into our CoStar
network.

See Notes 5 and 9 of the Notes to the Consolidated Financial Statements, included in Part IV of this Report, for further discussion of these acquisitions.

Development, Investments and Expansion

We plan to continue to invest in our business and our services, evaluate strategic growth opportunities and pursue our key priorities as described below in
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. We are committed to supporting, improving and enhancing
our  information,  analytics  and  online  marketplace  solutions,  including  expanding  and  improving  our  offerings  for  property  owners,  property  managers,
brokers,  agents,  buyers,  commercial  tenants  and  residential  renters  and  homebuyers.  We  expect  to  continue  our  software  development  efforts  to  improve
existing services, introduce new services, integrate and cross-sell services and expand and develop supporting technologies for

15

our  research,  sales  and  marketing  organizations.  We  reevaluate  our  priorities  on  a  regular  basis  and  may  reevaluate  our  priorities  as  economic  conditions
continue to evolve.

We evaluate potential changes to our service offerings from time to time in order to better align the services we offer with customers’ needs. Further, in
some  cases,  when  integrating  and  coordinating  our  services  and  assessing  industry  and  client  needs,  we  may  decide  to  combine,  shift  focus  from,  de-
emphasize, phase out or eliminate a service that, among other things, overlaps or is redundant with other services we offer. In the event that we eliminate or
phase out particular service offerings, we may experience reduced revenues and earnings. The decision to eliminate or phase out a service offering may also
ultimately result in increased revenues and earnings from sales of other services we offer in lieu of the eliminated or phased out services. However, we cannot
predict with certainty the amount or timing of any reductions in revenues and earnings or subsequent increases in revenues and earnings, if any, resulting from
the elimination or phasing out of any service offering.

We believe that our integration efforts and continued investments in our services, including acquisitions and expansion of our existing service offerings,
have created a platform for long-term revenue growth. We expect these investments to result in further penetration of our subscription-based services and the
successful cross-selling of our services to customers in existing markets.

We have invested in the expansion and development of our field sales force to support the growth and expansion of our company and our service offering,
and plan to continue to invest in, evaluate and strategically position our sales force as we continue to develop and grow. In addition, we continue to invest in
marketing  our  services,  as  well  as  in  our  research  operations  to  support  continued  growth  of  our  information  and  analytics  offerings  to  meet  the  growing
content  needs  of  our  clients.  We  plan  to  continue  to  utilize  multi-channel  marketing  campaigns  and  to  work  to  determine  the  optimal  level  of  marketing
investments for our services for future periods. While we believe the investments we make in our business create a platform for growth, those investments
may reduce our profitability and adversely affect our near-term financial position.

Proprietary Technology

Our information technology professionals focus on developing new services and features for our customers, improving and maintaining existing services,
integrating  our  current  services,  securing  our  comprehensive  database  of  commercial  real  estate  information  and  delivering  research  automation  tools  that
improve the quality of our data and increase the efficiency of our research analysts.

Our  information  technology  team  is  responsible  for  developing,  improving  and  maintaining  our  information,  analytics  and  online  marketplace
services. Our information technology team is also responsible for developing the infrastructure necessary to support our business processes, comprehensive
database of commercial real estate information, analytics and online marketplaces and extensive image library. The team implements technologies and systems
that introduce efficient workflows and controls designed to increase the production capacity of our research teams and improve the quality of our data. Over
the years, the team has developed data collection and quality control mechanisms that we believe are unique within the commercial real estate industry. The
team continues to develop and modify our enterprise information management system that integrates our sales, research, field research, customer support and
accounting  information. We  use  this  system  to  maintain  our  commercial  real  estate  research  information,  manage  contacts  with  the  commercial  real  estate
community, provide research workflow automation and conduct daily automated quality assurance checks. In addition, our information technology team has
also developed fraud-detection technology to detect and prevent unauthorized access to our services. To supplement the measures we take to prevent misuse of
our information, we added state of the art adaptive authentication technology to the login process of our CoStar product.

Our information technology professionals maintain the servers and network components necessary to support our services and research systems. Our core
services are delivered from multiple data centers and cloud-based computing platforms to support uninterrupted service for our customers and are continually
monitored to ensure fast and reliable customer access, to protect against unauthorized intrusions and to detect vulnerabilities.

Our comprehensive data protection policy provides for use of secure networks, strong passwords and dual factor authentication systems, encrypted data
fields,  end-to-end  encryption,  endpoint  detection  and  response  systems  and  services,  security  information  and  event  management  systems,  off-site  storage,
cloud services, end user and developer security training, multilayered anti-phishing malware and spam protections and other protective measures in an effort
to ensure the availability and security of all core systems.

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Competition

The market for information, analytics and online marketplaces generally is competitive and extremely dynamic. In the commercial real estate, apartment

rentals and home for sale industries, we believe the principal competitive factors affecting these services and providers are:

Ease of use, flexibility and functionality of the software;
Intuitiveness and appeal of the user interface;
Timeliness of the data, including listings;
Breadth of geographic coverage and services offered;
Completeness and accuracy of content;
Client service and support;
Perception that the service offered is the industry standard;
Price;
Effectiveness of marketing and sales efforts;
Proprietary nature of methodologies, databases and technical resources;

• Quality and depth of the underlying databases;
• Quality and quantity of leads and, for multifamily, leases delivered;
•
•
•
•
•
•
•
•
•
•
• Vendor reputation;
•
•

Brand loyalty among customers; and
Capital resources.

We compete directly and indirectly for customers with the following categories of companies:

• Online marketing services, internet listing services, mobile software applications or data exchanges targeted to commercial real estate brokers, buyers
and sellers of commercial real estate properties, insurance companies, mortgage brokers and lenders, such as Reed Business Information Limited and
its Estates Gazette and Radius Data Exchange products, SquareFoot, officespace.com, Brevitas, Catylist & Commercial Exchange (part of Moody's),
Altus  Group  &  Commercial  Property  Search  (part  of  Reonomy),  Digsy,  Quantum  Listing,  RealNex  MarketPlace,  Rofo,  CIMLS,  CompStak,
Rightmove, Yardi (CommercialEdge), CREXi, TotalCommercial.com, DebtX, Real Capital Markets, VTS, TenantBase and Spacelist;

•

•

•

Publishers  and  distributors  of  information,  analytics  and  marketing  services,  including  regional  providers  and  national  print  publications,  such  as
CBRE  Economic  Advisors,  Marshall  &  Swift,  REIS  Network  (part  of  Moody's),  Real  Capital  Analytics,  Real  Capital  Markets,  Reonomy,  Yardi
Matrix, RealPage and its Axiometrics business, Altus Insight and Altus RealNet (Canada);

Search engines, internet listing services and mobile software applications featuring apartments for rent, such as Google, Bing, Facebook Marketplace,
ApartmentGuide.com,  Rent.com,  Rentals.com,  Zillow  Rentals,  Trulia  Rentals,  StreetEasy,  HotPads.com,  MyNewPlace.com,  Zumper,  Craigslist,
ApartmentList.com, Move.com, Realtor.com, RentCafe.com, RentHop, RentBerry, ApartmentRatings, Nooklyn, Home Finder and Rentable;

Search engines, internet listing services and mobile software applications featuring homes for sale, such as Google, Bing, Facebook Marketplace,
Zillow, Trulia, Redfin, Realtor.com, Move.com, Craigslist, RealtyTrac, MLS.com, Home Finder, For Sale by Owner, Auction.com, Rightmove and
Zoopla, as well as agent marketing platforms and workflow providers;

• Hospitality  benchmarking  and  analytics  services,  such  as  Lodging  Econometrics,  Kalibri  Labs,  Amadeus,  HotStats,  Shiji  Group  (SnapShot),

Benchmarking Alliance and Lodging Analytics Research & Consulting (LARC);

• Online and mobile software application providers in the residential real estate industry, including Zillow, Redfin, Realtor.com and Rocket Mortgage,

as well as agent marketing platforms and workflow providers;

•

•

In the commercial real estate market, locally controlled real estate boards, exchanges or associations sponsoring commercial property listing services
and the companies with whom they partner, such as Catylist, the National Association of Realtors, CCIM Institute, Society of Industrial and Office
Realtors, the Commercial Association of Realtors Data Services and AIR CRE;

Real estate portfolio management software solutions, such as Cougar Software, MRI Software, Altus, RealPage, AppFolio and SiteCompli;

17

•

•

•

•

Real  estate  lease  management  and  administration  software  solutions,  such  as  Accruent,  Tririga,  Manhattan  Software,  Tango  Analytics,  Lease
Accelerator, Visual Lease, Sequnetra, Lease Harbor and AMT Direct;

Commercial real estate auction platforms such as CREXi, Marketplace, by RealINSIGHT and RCM Lightbox;

In-house research departments operated by commercial real estate brokers; and

Public record providers.

As  markets  for  information,  analytics  and  online  marketplaces  develop,  additional  competitors  (including  companies  that  could  have  greater  access  to
data, financial, product development, technical, analytic or marketing resources than we do) may enter a market and competition may intensify. For example, a
company like Google, which has a far-reaching web presence and substantial data aggregation capabilities, could enter the commercial real estate marketing
arena.  A  company  like  Zillow,  which  already  has  a  presence  in  residential  real  estate  and  the  apartment  rentals  industry,  could  use  its  resources  to  further
expand in the online apartment rentals industry creating greater competition among internet listing services for the marketing budgets of property managers
and  property  owners.  While  we  believe  that  we  have  successfully  differentiated  ourselves  from  existing  competitors,  current  or  future  competitors  could
materially harm our business. We may also enter markets where incumbent players have greater name recognition and resources, creating challenges as we
work to expand.

Proprietary Rights

To protect our proprietary rights in our methodologies, database, software, trademarks and other intellectual property, we depend upon a combination of:

Trade secret, misappropriation, unfair competition, copyright, trademark, computer fraud, database protection and other laws;
Registration of copyrights and trademarks;

•
•
• Nondisclosure, and other contractual provisions with employees and consultants;
•
•
•

License agreements with customers;
Patent protection; and
Technical measures.

We  seek  to  protect  our  software’s  source  code,  our  database  and  our  photography  as  trade  secrets  and  under  copyright  law.  Although  copyright
registration is not a prerequisite for copyright protection, we have filed for copyright registration for many of our databases, photographs, software and other
materials.  Under  current  U.S.  copyright  law,  the  arrangement  and  selection  of  data  may  be  protected,  but  the  actual  data  itself  may  not  be.  Certain  U.K.
database protection laws provide additional protections for our U.K. databases. We license our services under license agreements that grant our clients non-
exclusive, non-transferable rights. These agreements restrict the disclosure and use of our information and prohibit the unauthorized reproduction or transfer
of any of our proprietary information, methodologies or analytics.

We also attempt to protect our proprietary databases, our trade secrets and our proprietary information through confidentiality and agreements with our
employees and consultants. Our services also include technical measures designed to detect, discourage and prevent unauthorized access to and/or copying of
our intellectual property. We have established an internal antipiracy team that uses fraud-detection technology to continually monitor use of our services to
detect and prevent unauthorized access, and we actively prosecute individuals and firms that engage in this unlawful activity.

We maintain U.S. and international trademark registrations for CoStar Group’s core service names and proactively file U.S. and international trademark
applications covering our new and planned service names. We own U.S. federally registered trademarks for our brands and services including CoStar , CoStar
®
Property , CoStar COMPS , CoStar Lease Analysis , LoopNet , Showcase.com , CityFeet.com , Apartments.com , Homes.com  Land.com , and Ten-X ,
among many others. In the U.S., trademarks are generally valid so long as they are in use and are capable of indicating CoStar Group as the source of services.
We consider our trademarks in the aggregate to constitute a valuable asset.

®,

®

®

®

®

®

®

®

®

®

In addition, we maintain a patent portfolio that protects certain of our systems and methodologies. We currently have six patents in Canada, which expire
in 2033 (1 patent), 2035 (2 patents) and 2036 (3 patents), covering, among other things, certain features of our field research methodologies and user interface
features, and 12 patents in the U.S. which expire in, 2025 (1 patent), 2032 (2 patents), 2036 (4 patents), 2037 (4 patents) and 2038 (1 patent), covering, among
other things, certain features of our field research methodologies and user interface feature. We regard the rights protected by our patents as valuable to our
business, but do not believe that our business is materially dependent on any single patent or portfolio of patents as a whole.

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Human Capital Resources

As  of  January  31,  2024,  we  employed  6,152  employees.  U.S.-based  employees  represent  approximately  86%  of  the  overall  employee  population,
followed by 12% in European, Asia-Pacific and Latin American countries and 2% in Canadian provinces. None of our employees are represented by a labor
union. We have experienced no work stoppages. As is common with many German companies, employees in our German subsidiary, Thomas Daily GmbH,
have elected five fellow employees to form a Works Council, which represents our employees at the location. The Works Council has certain co-determination
rights and rights to receive information from us and engage us in discussions under applicable law. BureauxLocaux, in France, has a Social and Economic
Committee, which is an employee representative body.

Our human resources and recruiting teams work in partnership with business leaders, using a robust process to attract a diverse slate of candidates to fill
vacancies and contribute to our growth, including our Careers page on our corporate website, employee referral program, social media and digital platforms,
direct  outreach,  partnerships  with  commercial  real  estate  industry  groups  and  universities  and  specific  partnerships  and  programs.  The  development  and
retention  of  our  employees  is  critical  to  our  success.  To  support  career  development,  we  offer  on-demand  and  in-person  training  programs  to  new  hires,
managers, and leaders. We also offer a mentoring program, which pairs employees seeking mentorship with more experienced colleagues.

To assess employee engagement, we partner with a survey vendor to survey employees annually. Insights and results gathered from the survey are shared
with our leadership, managers and employees and help to inform our human resources program strategy each year. We believe that diverse teams deliver better
and more innovative solutions. The diversity of thought that comes from different perspectives and backgrounds allows us to deliver cutting edge research and
technology  solutions  that  best  serve  our  customers.  We  have  a  dedicated  Diversity,  Equity  and  Inclusion  team  that  is  tasked  with  developing  topical
programming,  communications  and  training  including,  but  not  limited  to,  celebrations  of  various  heritage  months  and  oversight  of  our  employee  resource
groups, which create avenues for mentoring and professional development within these groups as well as education and awareness across the organization.

We provide competitive pay and benefits to attract and retain high-quality talent. In addition to base salaries, compensation may include annual bonuses,
commissions,  and  equity  awards.  Employees  may  also  participate  in  an  Employee  Stock  Purchase  Plan  and  a  401(k)  Plan  with  a  company  match.  Our
comprehensive set of health and wellness benefits are affordable, high quality and valuable to employees and their families. Employees have multiple choices
for  health  plans,  access  to  vision  and  dental  benefits  and  may  participate  in  our  employee  wellness  program  as  well  as  our  employee  assistance  program.
Additional benefits include paid time off, parental bonding leave, college savings benefits, tuition reimbursement, company-subsidized commuter benefits and
access to mental health, tax, and legal services.

Available Information

Our  investor  relations  internet  website  is  http://www.costargroup.com/investors.  The  reports  we  file  with  or  furnish  to  the  SEC,  including  our  annual
report, quarterly reports and current reports, as well as amendments to those reports, are available free of charge on our internet website as soon as reasonably
practicable  after  we  electronically  file  such  material  with,  or  furnish  it  to,  the  SEC.  The  SEC  maintains  an  internet  site  that  contains  reports,  proxy  and
information statements and other information regarding issuers that file electronically with the SEC at http://www.sec.gov.

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Item 1A.    Risk Factors

Risks related to our business

Our  revenues  and  financial  position  will  be  adversely  affected  if  we  are  not  able  to  attract  and  retain  clients.  Our  success  and  revenues  depend  on
attracting  and  retaining  subscribers  to  our  information,  analytics  and  online  marketplace  services.  Our  subscription-based  services  generate  the  largest
portion of our revenues. Our revenue may not grow, or could decrease, if we cannot attract new customers, continue to keep our cancellation rate low and
continue to sell new services to our existing customers. We may not be able to continue to grow our customer base, keep the cancellation rate low or sell new
services  to  existing  customers  as  a  result  of  several  factors,  including,  continuing  global  economic  and  geopolitical  volatility,  economic  pressures  and  the
impact of inflation on our costs and on customer spending; the business failure of current clients; customer decisions that they do not need our services or to
use alternative services; customers’ and potential customers’ budgetary constraints; consolidation in the real estate and/or financial services industries; data
quality; technical problems; competitive pressures; or devaluation of the local currencies of international customers relative to the U.S. dollar which impairs
the purchasing power of such customers. We compete against many other real estate information, analytics and marketing service providers for business. If
clients cancel services or decide not to renew their subscription agreements and we do not sell new services to our existing clients or attract new clients, then
our renewal rate, net new bookings and revenues may decline or fail to meet expectations.

We may not be able to successfully develop and introduce new or upgraded information, analytics and online marketplace services that are attractive to
our  users  and  advertisers  or  successfully  combine  or  shift  focus  from  current  services  with  less  demand,  which  could  decrease  our  revenues  and  our
profitability. Our future business and financial success will depend on our ability to continue to anticipate the needs of customers and potential customers and
to  successfully  introduce  new  and  upgraded  services,  including  services  that  make  our  marketplaces  useful  for  users  and  attractive  to  advertisers.  To  be
successful, we must be able to quickly adapt to changes in the industry, as well as rapid technological changes, by continually enhancing our information,
analytics  and  online  marketplace  services.  As  a  result,  we  must  continually  invest  resources  in  research  and  development  to  improve  the  appeal  and
comprehensiveness of our services and effectively incorporate new technologies.

Developing  new  services  and  upgrades  to  services,  as  well  as  integrating  and  coordinating  current  services,  imposes  heavy  burdens  on  our  systems
department, product development team, management and researchers. The processes are costly, and our efforts to develop, integrate and enhance our services
may not be successful. In addition, launching and selling a new or upgraded service puts additional strain on our sales and marketing resources. If we are
unsuccessful in obtaining greater market share or in obtaining widespread adoption of new or upgraded services, we may not be able to offset the expenses
associated with the development, launch and marketing of the new or upgraded service, which could have a material adverse effect on our financial results.
For example, we have and will continue to invest significantly in developing our marketplaces and content and, to generate brand awareness and site traffic,
we  have  and  will  continue  to  invest  significant  resources  in  multi-channel  marketing  campaigns  for  select  marketplaces.  If  these  development  efforts  and
marketing campaigns do not increase brand awareness, site traffic, subscriptions for marketplaces services and/or revenues, the cost of these campaigns could
have an adverse effect on our financial results.

In  addition,  as  we  integrate  acquired  businesses,  we  continue  to  assess  which  services  we  believe  will  best  meet  the  needs  of  our  customers.  If  we
eliminate or phase out a service and are not able to offer and successfully market and sell an alternative service, our revenues may decrease, which could have
a material adverse effect on our results of operations.

We may not be able to compete successfully against existing or future competitors in attracting advertisers, which could harm our business, results of
operations and financial condition. We compete to attract advertisers. Our competitors may have greater brand recognition or more direct sales personnel than
we have and may generate more web traffic than we do, which may provide them with competitive advantages. To compete successfully for advertisers, we
must  continue  to  invest  resources  in  developing  our  advertising  platform  and  proving  the  effectiveness  and  relevance  of  our  advertising  services.  Pressure
from competitors seeking to acquire a greater share of our advertisers’ overall marketing budget could adversely affect our pricing and margins, lower our
revenue  and  increase  our  research  and  development  and  marketing  expenses.  If  we  are  unable  to  compete  successfully  against  our  existing  or  future
competitors, our business, results of operations or financial condition could be adversely affected.

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.  Competition  in  these  markets  may  increase  further  if  economic  conditions  or  other
circumstances cause customer bases and customer spending to decrease and service providers to compete for fewer customer resources. Our existing or future
competitors may have greater name recognition, larger customer bases, better technology or data, lower prices, easier access to data, greater user traffic or
greater  financial,  technical  or  marketing  resources  than  we  have  to  provide  services  that  users  might  view  as  superior  to  our  offerings.  Competitors  may
introduce different solutions that attract users away from our services or provide solutions similar to ours that

20

have the advantage of better branding or marketing resources. Our competitors may be able to undertake more effective marketing campaigns, obtain more
data,  adopt  more  aggressive  pricing  policies,  make  more  attractive  offers  to  potential  employees,  subscribers,  advertisers,  distribution  partners  and  content
providers or may be able to respond more quickly to new or emerging technologies or changes in user requirements. Increased competition could result in
lower revenues and higher expenses, which would reduce our profitability.

Our  operating  results  and  revenues  are  subject  to  fluctuations  and  our  quarterly  financial  results  may  be  subject  to  market  cyclicality,  each  of  which
could negatively affect our stock price. The real estate market may be influenced by general economic conditions, economic cycles, changes in interest rates,
seasonality and many other factors, which in turn may impact our financial results. The different sectors of the large and fragmented industry, such as office,
industrial, retail, multifamily, single family and others, are influenced differently by different factors, and have historically moved through economic cycles
with different timing. As such, it is difficult to estimate the potential impact of economic cycles and conditions or seasonality from year-to-year on our overall
operating results. For example, we generally see higher sales of Apartments.com listing services during the peak summer rental season and higher CoStar sales
towards the end of the year; however, sales fluctuate from year-to-year and may fluctuate more widely when there are changes in general economic conditions
or the industry.The timing of widely observed holidays and vacation periods, particularly slowdowns during the end-of-year holiday period, and availability of
real  estate  agents  and  related  service  providers  during  these  periods,  could  significantly  affect  our  quarterly  operating  results  during  that  period.  If  we  are
unable to adequately respond to economic, seasonal or cyclical conditions, our revenues, expenses and operating results may fluctuate from quarter to quarter.
Our operating results, revenues and expenses may fluctuate for many reasons, including those described in this paragraph and below:

Rates of subscriber adoption and retention;
Timing of our annual sales conference or significant marketing events;
Changes in our pricing strategy and timing of changes;
The timing and success of new service introductions and enhancements;
The shift of focus from certain services we offer or the phase out of services that overlap or are redundant with other services we offer;
The amount and timing of our expenses and capital expenditures;
The amount and timing of non-cash stock-based charges;

•
•
•
•
•
•
•
• Acquisition-related costs or impairment charges associated with investments and acquisitions;
•
•
•
•
•
•
•
•

Competition;
Changes or consolidation in the real estate industry;
Interest rate fluctuations;
Execution of our expansion and integration plans;
The development of our sales force;
Foreign currency exchange rate fluctuations;
Inflation; and
Changes in client budgets.

These fluctuations could negatively affect our results of operations during the period in question and/or future periods or cause our stock price to decline.
In addition, changes in accounting policies or practices may affect our level of net income. Fluctuations in our financial results, revenues and expenses may
cause the market price of our common stock to decline.

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. Global economic uncertainties or downturns could adversely affect our business and results of
operations, including financial and credit market fluctuations, changes in economic policy, increased inflation and responsive actions, rising interest rates or a
period of elevated interest rates, labor shortages, supply chain disruptions, trade uncertainty, political unrest, geographical instability or other impacts from the
macroeconomic environment. These macroeconomic conditions could cause a decrease in customer spending and negatively affect the rate of growth of our
business. The real estate market may be adversely impacted by many different factors, including lower than expected job growth or job losses resulting in
reduced  real  estate  demand;  reduced  real  estate  demand  due  to  continued  remote  work  policies  or  a  period  of  elevated  interest  rates;  rising  interest  rates,
inflation, slowing transaction volumes and other macroeconomic trends that negatively impact investment returns; excessive speculative new construction in
localized markets resulting in increased vacancy rates and diminished rent growth; unanticipated disasters or global health events; and other adverse events
such as decreased growth in the working age population resulting in reduced demand for all types of real estate. In response to concerns over inflation, the
U.S. Federal Reserve raised interest rates in each quarter of 2022 and the first, second and third quarters 2023. A downturn in the real estate market, including
as a result of increased interest rates or a decline in leasing activity and absorption rates may affect our ability to generate revenues and may lead to more
cancellations by our current or future customers, either of which could cause our revenues or our revenue growth rate to decline and reduce our profitability. A
depressed real estate market has a negative impact on our core customer base, which could decrease demand for

21

our information, analytics and online marketplaces. Also, companies in this industry may consolidate, often in order to reduce expenses. Consolidation, or
other  cost-cutting  measures  by  our  customers,  may  lead  to  cancellations  of  our  information,  analytics  and  online  marketplace  services  by  our  customers,
reduce the number of our existing clients, reduce the size of our target market or increase our clients’ bargaining power, all of which could cause our revenues
to decline and reduce our profitability. If cancellations, reductions of services and failures to pay increase, and we are unable to offset the resulting decrease in
revenues by increasing sales to new or existing customers, our revenues may decline or grow at lower rates.

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 revenues could
be adversely affected. In order to support revenues and revenue growth, we need to continue to develop, train and retain our sales force. Our ability to build
and develop a strong sales force may be affected by a number of factors, including: our ability to attract, integrate and motivate sales personnel; our ability to
effectively train our sales force; the ability of our sales force to sell an increased number and different types of services; our ability to manage effectively an
outbound telesales group; the length of time it takes new sales personnel to become productive; the competition we face from other companies in hiring and
retaining sales personnel; our ability to effectively structure our sales force; and our ability to effectively manage a multi-location sales organization, including
field sales personnel. If we are unable to hire qualified sales personnel and develop and retain our sales force, including sales force management, or if our sales
force is unproductive, our revenues or growth rate could decline and our expenses could increase. We may face additional challenges in hiring employees in an
increasingly competitive job market.

Our business depends on retaining and attracting highly capable management and operating personnel. Our success depends in large part on our ability
to retain and attract management and operating personnel, including our President and Chief Executive Officer, Andrew Florance, and our other officers and
key employees. Our business requires highly skilled technical, sales, management, web product and development, marketing and research personnel, who are
in high demand and are often subject to competing offers. The measures we use to attract and retain key personnel may not be enough to attract and retain the
personnel we need or to offset the impact on our business of the loss of the services of Mr. Florance or other key officers or employees. If Mr. Florance were
to become unavailable for any reason, there could be a material adverse impact on our operations. The loss of other key personnel, including members of
management as well as key technology, product development, and marketing personnel, could also disrupt our operations and have an adverse effect on our
business.

Our internal and external investments may place downward pressure on our operating margins. To increase our revenue growth, we continue to invest
significantly in our business, including internal investments in product and content development to expand the breadth and depth of services we provide to our
customers and external investments in sales and marketing to generate brand awareness and traffic to our websites. Our operating margins may experience
downward pressure in the short term as a result of these investments. Furthermore, our investments may not produce the expected results. If we are unable to
successfully execute our investment strategy, we may experience decreases in our revenues or revenue growth rate and 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. In February 2024 we launched our Homes.com monetization strategy. We have incurred, and
expect to continue to incur, significant costs to develop and market Homes.com. If we are unable to attract and retain agent subscribers and consumers, we
may not be able to execute our growth plans or recognize a return on the investments we have made into Homes.com. Failure to gain market acceptance for
Homes.com could impede our ability to maintain or grow current revenue levels or reduce profits for our other brands, adversely affect the image of our
brands, erode our competitive position, and result in long-term harm to our business and financial results. Extrapolations annualizing initial sales results may
differ materially from actual results realized in future periods and may not take into account other future market conditions that may negatively affect those
results.

We may be unable to increase awareness of our brands, including CoStar, LoopNet, Apartments.com, Homes.com Land.com, BizBuySell, STR, Ten-X, and
OnTheMarket, which could adversely affect our business. We rely heavily on our brands, which we believe are key assets of our company. Awareness and
differentiation  of  our  brands  are  important  for  attracting  and  expanding  the  number  of  users  of,  and  subscribers  to,  our  online  marketplaces,  such  as  the
LoopNet  Network,  the  Apartments.com  Network,  our  Homes.com  and  OnTheMarket  residential  marketplaces,  the  Land.com  Network  and  our  CoStar
Showcase.  We  continue  to  invest  significantly  in  sales  and  marketing  as  we  seek  to  grow  the  numbers  of  users  of,  subscribers  to  and  advertisers  on,  our
marketplaces. Our methods of advertising may not be successful in increasing brand awareness or, ultimately, be cost-effective. If we are unable to maintain or
enhance  user  and  advertiser  awareness  of  our  brands,  or  if  we  are  unable  to  recover  our  marketing  and  advertising  costs  through  increased  usage  of  our
services and increased advertising on our websites, our business, results of operations and financial condition could be adversely affected.

If internet search engines do not prominently feature our websites on the search engine results page, traffic to our websites would decrease and, if we are

unable to maintain or increase traffic to our marketplaces, our business and operating results could be adversely affected. Our ability to generate revenues
from our marketplace business depends, in part, on our ability to

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attract users to our websites. Google, Bing, DuckDuckGo and other internet search engines drive traffic to our websites, including CoStar.com, the LoopNet
Network, the Apartments.com Network, our Homes.com and OnTheMarket residential marketplaces, the Land.com Network, Ten-X.com and BizBuySell. For
example, when a user enters in a search query for an apartment building name or address into an internet search engine, the internet search engine’s ranking of
our Apartments.com or Homes.com webpages will determine how prominently such webpages are displayed on the search engine results page. Our ability to
maintain prominent search result rankings and positioning is not entirely within our control. Our competitors’ SEO and SEM efforts may result in webpages
from their websites receiving higher rankings than the webpages from our websites. Internet search engines could revise their algorithms and methodologies in
ways that would adversely affect our search result rankings. Internet search engine providers could form partnerships or enter into other business relationships
with our competitors resulting in competitors’ sites receiving higher search result rankings. Internet search engines are increasingly placing alternative search
features (such as featured snippets, local map results and other immersive experiences) on the search engine results page above or more prominently than
search engine results. If our search result rankings are not prominently displayed, traffic to our websites may decline which could slow the growth of our user
base. Our websites have experienced fluctuations in search result rankings in the past and we anticipate similar fluctuations will occur in the future. If we
experience a material reduction in the number of users directed to our websites through internet search engines or otherwise fail to maintain or increase traffic
to our marketplaces, our ability to acquire additional subscribers or advertisers and deliver leads to and retain existing subscribers and advertisers could be
adversely affected. As a result, our business, results of operations and financial condition could be adversely affected. Increases in our operating expenses
could negatively impact our operating results if we are unable to generate more revenues through increased sales of subscriptions to our marketplace products.
Additionally, the methods, including Google Analytics, that we use to measure unique visitors to our portals may misstate the actual number of unique persons
who visit our network of mobile applications and websites for a given month or may differ from the methods used by competitors, which may impact the
comparability of unique visitors between companies. Additionally, the methods, including Google Analytics, that we use to measure unique visitors to our
portals may misstate the actual number of unique persons who visit our network of mobile applications and websites for a given month or may differ from the
methods used by competitors, which may impact the comparability of unique visitors between companies.

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.  Our  marketplace  businesses,  including  the  LoopNet  Network,  the  Apartments.com  Network,  our  Homes.com  and
OnTheMarket residential marketplaces, CoStar Showcase and the Land.com Network, depend on advertising revenues generated primarily through sales to
persons in the real estate industry, including broker, agents, property managers and owners, real estate agents, and other advertisers. Our ability to attract and
retain advertisers, and ultimately to generate advertising revenue, depends on a number of factors, including:

Increasing the number of unique visitors to, and users of, our websites and mobile applications;
The quantity and quality of the leads that we provide to our advertisers;
The success of any marketing and product development efforts directed at attracting additional users and advertisers to our marketplaces;

•
•
•
• Keeping pace with changes in technology and with our competitors; and
• Offering an attractive return on investment to our advertisers for their advertising dollars spent with us.

Further,  with  respect  to  the  Apartments.com  Network  and  LoopNet  Networks,  our  ability  to  attract  and  retain  advertisers  also  depends  on  the  current
apartment rental market and apartment vacancy rates and commercial rental market and vacancy rates, respectively. If vacancy rates are too high or too low,
advertisers may not need to utilize our marketplace services.

Many of the advertisers who advertise on our marketplaces do not have long-term contracts. These advertisers could choose to modify or discontinue their
relationships  with  us  with  little  or  no  advance  notice.  As  existing  subscriptions  for  advertising  expire,  we  may  not  be  successful  in  renewing  these
subscriptions or securing new subscriptions. We may not succeed in retaining existing advertisers’ spending or capturing a greater share of such spending if
we are unable to convince advertisers of the effectiveness of our services as compared to alternatives. In addition, future changes to our pricing methodology
for advertising services may cause advertisers to reduce or discontinue their advertising with us. If current advertisers reduce or end their advertising spending
with us and we are unable to attract new advertisers, our advertising revenues and business, results of operations and financial condition could be adversely
affected.

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 have expanded our markets and services in part through acquisitions of complementary businesses, services, databases and
technologies,  and  expect  to  continue  to  do  so  in  the  future.  Our  acquisition  strategy  depends  on  our  ability  to  identify,  and  the  availability  of,  suitable
acquisition candidates. We are likely to incur costs in connection with proposed acquisitions, but may ultimately be unable or unwilling to consummate any
particular proposed transaction for various reasons. For example, in 2021, the FTC withheld approval for our proposed acquisition of RentPath, the purchase
agreement was subsequently terminated and we incurred a termination fee of $52 million.

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We are also likely to incur severance costs and other integration costs post-acquisition. Costs in connection with acquisitions and integrations may be higher
than expected and could adversely affect our financial condition, results of operations or prospects of the combined business. In addition, acquisitions involve
numerous risks, including risks that we will not be able to realize or capitalize on synergies created through combinations; manage the integration of personnel
and products or services; manage the integration of acquired infrastructure and controls; control potential increases in operating costs; manage geographically
remote operations; maintain management’s attention on other business concerns and avoid potential disruptions in ongoing operations during an acquisition
process or integration efforts; successfully enter markets and sectors in which we have either limited or no direct experience, including foreign markets whose
practices, regulations or laws may pose increased risk; and retain key employees, clients or vendors and other business partners of the acquired companies. We
may  not  successfully  integrate  acquired  businesses  or  assets  and  may  not  achieve  anticipated  benefits  of  an  acquisition,  including  expected  synergies.  For
example, we may be unable to fully integrate BureauxLocaux, Business Immo and OnTheMarket with CoStar Group when and as expected.

We  were  previously  subject  to  a  consent  order  agreed  to  among  the  FTC  staff,  CoStar  Group  and  LoopNet  on  April  17,  2012  in  connection  with  the
LoopNet  merger.  This  consent  order  expired  in  August  2022,  but  if  we  become  subject  to  similar  orders  in  the  future,  compliance  with  such  orders  could
prevent us from closing certain acquisitions or add significant time and cost to such acquisitions, ultimately making an acquisition prohibitive or preventing us
from realizing its anticipated benefits.

External factors, such as compliance with laws and regulations and shifting market preferences, may also impact the successful integration of an acquired
business. An acquired business could strain our system of internal controls and diminish its effectiveness. Acquisitions could result in dilutive issuances of
equity securities, the incurrence of debt and substantial amortization expenses of other intangible assets. We may be unable to obtain financing on favorable
terms,  or  at  all,  if  necessary  to  finance  future  acquisitions,  making  it  impossible  or  more  costly  to  complete  future  acquisitions.  If  we  are  able  to  obtain
financing,  the  terms  may  be  onerous  and  restrict  our  operations.  Further,  certain  acquisitions  may  be  subject  to  regulatory  approval,  which  can  be  time-
consuming and costly to obtain or may be denied, as in the case of RentPath. If regulatory approval is obtained, the terms of any such approval may impose
limitations on our ongoing operations or require us to divest assets or lines of business. If regulatory approval is denied, we may incur significant, additional
costs payable to an acquisition target as a result of failure to close the transaction. For example, we incurred a termination fee of $52 million in connection
with  termination  of  the  RentPath  purchase  agreement.  Significant  break-up  fees  incurred  in  the  future  may  adversely  affect  our  results  of  operations  and
financial condition.

As a result of our acquisitions, we had approximately $2.7 billion of goodwill and intangibles as of December 31, 2023. Future acquisitions may increase
this amount. If we are required to recognize goodwill and intangibles impairment charges in the future, this would negatively affect our financial results in the
periods of such charges, which may reduce our profitability.

Cyberattacks  and  security  vulnerabilities  could  result  in  serious  harm  to  our  reputation,  business  and  financial  condition.  Our  business  relies  on  IT
Systems  and  involves  the  generation,  collection,  storage,  processing  and  transmission  of  Confidential  Information,  including  personal  information  and
proprietary business information, by us and by third-party providers we rely on. We own and manage IT Systems but also rely on third-party managed IT
Systems and a broad array of third-party products and services to support our business operations. An increasing number of organizations, including large
merchants, businesses, technology companies and financial institutions, as well as government institutions, have disclosed security incidents, disruptions to,
and  breaches  of  their  or  third-party  providers’  IT  Systems,  some  of  which  have  involved  sophisticated  and  highly  targeted  attacks,  including  on  websites,
mobile applications and infrastructure, following a trend of cyberattacks increasing in frequency and magnitude on a global basis.

Our  IT  Systems,  or  those  of  third  parties  on  which  we  rely,  may  be  disrupted  or  damaged  and  our  Confidential  Information  may  be  compromised,
corrupted,  lost  or  stolen.  The  tools  and  techniques  (including  artificial  intelligence)  used  to  obtain  unauthorized,  improper  or  illegal  access  to  a  target’s
systems,  data  or  customers’  data,  disable  or  degrade  services,  or  sabotage  systems  are  constantly  evolving  and  have  become  increasingly  complex  and
sophisticated. It may be difficult to detect, investigate or remediate such cyber attacks quickly and such attacks often are not recognized or detected until after
they have been launched against a target. We expect that unauthorized parties will continue to attempt to gain access to or disrupt our IT systems or facilities
through various means, including hacking into IT Systems or facilities or those of our customers or vendors, malware (including ransomware) or attempting to
fraudulently induce (for example, through spear phishing attacks or social engineering) our employees, customers, vendors or other users of IT Systems into
disclosing access credentials or other sensitive information, which may in turn be used to access our IT Systems.

Numerous  and  evolving  cybersecurity  threats,  including  from  diverse  threat  actors,  such  as  state-sponsored  organizations,  opportunistic  hackers  and
hacktivists, as well as through diverse attack vectors, such as advanced cyberattacks, phishing, social engineering schemes, malware (including ransomware),
malfeasance by insiders, human or technological error, and as a result of bugs, misconfigurations or exploited vulnerabilities in software or hardware, could
compromise the confidentiality, availability and integrity of Confidential Information and our IT systems. Our efforts to prevent, detect and respond to data

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security incidents, may not be effective due to attackers increasingly using tools and techniques that are designed to circumvent controls, to avoid detection,
and to remove or obfuscate forensic evidence. Further, the security measures and procedures our customers, vendors and other users of our systems have in
place  to  protect  IT  Systems  and  Confidential  Information  may  not  be  successful  or  sufficient  to  counter  all  data  breaches,  cyberattacks  or  system  failures.
There  can  be  no  assurance  that  our  cybersecurity  risk  management  program  and  processes,  including  our  policies,  controls,  or  procedures,  will  be  fully
implemented, complied with or effective in protecting our IT Systems and Confidential Information.

Our IT Systems may be vulnerable to cyberattacks or security breaches, and third parties may be able to access our, our customers’ or our employees’
Confidential  Information,  including  personal  or  proprietary  information,  that  is  stored  on  or  accessible  through  those  systems.  We  have  experienced  and
expect to continue to experience in the future, cyberattacks as well as breaches of our security measures due to human error, malfeasance, system errors or
vulnerabilities or other irregularities. In the past, one of our vendors providing IT infrastructure management software was compromised by cyberattacks. We
are regularly exposed to vulnerabilities in widely deployed third-party software that we use in the ordinary course of business, such as the Log4J vulnerability.
While  these  vulnerabilities  did  not  have  a  material  adverse  effect  on  our  operations,  they  and  similar  incidents  require  us  to  devote  time  and  resources  to
monitoring and remediation on a regular basis.

In the past three years, we have not experienced a material cybersecurity incident, but any actual or perceived cybersecurity incidents or breaches of our

security could result in any or all of the following, among other things, any of which could adversely affect our business and results of operations:

Interrupt our operations;
Result in our systems or services being unavailable;
Result in improper disclosures of data;
Result in improper payments;

•
•
•
•
• Materially harm our reputation and brands;
•

Result  in  significant  regulatory  scrutiny,  enforcement  actions,  legal  proceedings  and  claims  (including  class  action  lawsuits)  and  other  legal  and
financial exposure;
Cause us to incur significant remediation, system restoration, incident response and compliance costs;
Lead to loss of customer confidence in, or decreased use of, our products and services;

•
•
• Divert the attention of management from the operation of our business; and
•

Result in significant contractual penalties or other payments as a result of third-party losses or claims.

In addition, any cyberattacks or data security breaches affecting companies that we acquire our customers or vendors (including data center and cloud
computing providers) could have similar negative effects on our business. Further, we may not be able to recover any or all damages suffered as a result of
such security breach or other security incident from such third-party providers. Notwithstanding our efforts, there can be no assurance that vulnerabilities in
widely  deployed  software  will  not  materially  harm  our  business.  Any  breach  of  our  security  measures  or  the  loss,  inadvertent  disclosure  or  unapproved
dissemination of Confidential Information about us or our customers, including the potential loss or disclosure of such information or data, could result in
litigation, regulatory enforcement and potential liability for us, damage our brand and reputation or otherwise materially harm our business, financial condition
or competitive position.

The coverage under our insurance policies for cybersecurity and related issues may not be adequate to reimburse us for losses caused by cyberattacks or

other security incidents or be available on economically reasonable terms or at all.

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 information, analytics and online marketplace
services, lower revenues and increased costs. Our business, brands and reputation depend upon the satisfactory performance, reliability and availability of our
websites, the internet and our service providers. Interruptions in these systems, whether due to system failures, computer viruses, software errors, physical or
electronic break-ins, or malicious hacks or attacks on our systems (such as denial of service attacks or use of malware such as ransomware) could affect the
security and availability of our services on our mobile applications and our websites and prevent or inhibit users’ access to our services. Our operations also
depend on our ability to protect our databases, computers and software, telecommunications equipment and facilities against damage from potential dangers
such as fire, flood, power loss, security breaches, computer viruses, telecommunications failures, terrorist attacks, acts of war, electronic and physical break-
ins, computer viruses, earthquakes and similar events.

In addition, the software, internal applications and systems underlying our services are complex and may not be error-free. We may encounter technical
problems  when  we  attempt  to  enhance  our  software,  internal  applications  and  systems.  Our  users  rely  on  our  services  to  conduct  their  own  businesses.
Disruptions in, technical problems with, or reductions in ability to access our services for any reason could damage our users’ businesses, harm our reputation,
result in additional costs or reduce

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demand for our information, analytics and online marketplace services, any of which could harm our business, results of operations and financial condition.

Amazon  Web  Services  ("AWS")  and  Akamai  Connected  Cloud  ("ACC")  are  distributed  computing  infrastructure  platforms  for  business  operations,
commonly  referred  to  as  “cloud”  computing  services.  We  currently  run  a  majority  of  our  computing  on  AWS  and  ACC  and  have  built  our  software  and
computer systems to use computing, storage capabilities, bandwidth, and other services provided by AWS and ACC. Given this, any significant disruption of
or interference with AWS or ACC, whether temporary, regular, or prolonged, would negatively impact our operations and our business.

We also maintain communications, network and computer hardware used to operate some of our mobile applications and websites at facilities in Virginia
and California. We do not own or control the operation of certain of these facilities. Our systems and operations are vulnerable to damage or interruption from
fire,  flood,  power  loss,  security  breaches,  computer  viruses,  telecommunications  failure,  terrorist  attacks,  acts  of  war,  electronic  and  physical  break-ins,
earthquakes and similar events. These risks may be increased with respect to operations housed at facilities we do not own or control. The occurrence of any
of the foregoing events could result in damage to our systems and hardware or could cause them to fail completely, and our insurance may not cover such
events or may be insufficient to compensate us for losses that may occur.

A  failure  of  our  systems  at  any  site  could  result  in  reduced  functionality  for  our  users,  and  a  total  failure  of  our  systems  could  cause  our  mobile
applications or websites to be inaccessible. Problems faced or caused by our information technology service providers, including content distribution network
providers, private network providers, internet service providers and third-party web-hosting providers, or with the systems by which they allocate capacity
among their customers (as applicable), could adversely affect the experience of our users. Any financial difficulties, such as bankruptcy reorganization, faced
by these third-party service providers or any of the service providers with whom they contract may have negative effects on our business, the nature and extent
of which are difficult to predict. If our third-party service providers are unable to keep up with our growing needs for capacity, our business could be harmed.
In  addition,  if  distribution  channels  for  our  mobile  applications  experience  disruptions,  such  disruptions  could  adversely  affect  the  ability  of  users  and
potential users to access or update our mobile applications, which could harm our business.

Our business interruption insurance may not cover certain events or may be insufficient to compensate us for the potentially significant losses, including
the potential harm to the future growth of our business, which may result from interruptions in our service as a result of system failures or malicious attacks.
Any  errors,  defects,  disruptions  or  other  performance  problems  with  our  services  could  harm  our  reputation,  business,  results  of  operations  and  financial
condition.

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.  In  December  2021,  we  announced  our  plans  to  expand  our  research  and  technology
center  in  Richmond,  Virginia.  These  plans  have  required  and  will  continue  to  require  significant  capital  expenditures  over  the  next  several  years  and  our
business plans may change. Future changes in growth or fluctuations in cash flow may also negatively impact our ability to finance this project. Additionally,
actual capital expenditures could vary materially from our projected capital expenditures, which could negatively impact our business, operating results and
financial  condition.  If  we  are  provided  with  any  grants,  tax  credits,  abatements  or  other  incentives  related  to  this  expansion  effort  and  do  not  meet
requirements  associated  with  those  incentives,  we  may  not  be  able  to  benefit  from  those  incentives,  which  could  cause  the  cost  of  the  project  to  be
significantly more than anticipated or significantly increase our taxes above what we currently expect. To date, we have financed construction with cash on
hand  and  plan  to  finance  the  remainder  of  construction  in  the  same  way.  Use  of  cash  on  hand  to  finance  construction  has  and  will  continue  to  reduce  the
amount of cash available for other corporate uses and could also reduce our ability to meet our scheduled debt service obligations or to meet the covenants
required  to  borrow  additional  funds  under  our  2020  Credit  Agreement.  Any  of  the  foregoing  may  adversely  affect  our  financial  position  and  results  of
operations.

Our current or future geographic expansion plans may not result in increased revenues, which may negatively impact our business, results of operations
and financial position. Expanding into new markets and increasing the depth of our coverage in existing markets imposes additional burdens on our research,
systems development, sales, marketing and general managerial resources. If we are unable to manage our expansion efforts effectively, if our expansion efforts
take longer or are more expensive than planned or we are not successful in marketing and selling our services in existing or new markets, our expansion may
have a material adverse effect on our financial position by increasing our expenses without increasing our revenues.

Our business and results of operations may be, and our financial condition may be, impacted by the lasting effects of the COVID-19 pandemic on the
global economy, the real estate industry, and our customers and such impact could be materially adverse and continue for an unknown period of time. The
COVID-19 pandemic created significant economic volatility, uncertainty and disruption around the world, including in the real estate industry.

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The  demand  for  office  space  decreased  during  and  following  the  COVID-19  pandemic  as  businesses  implemented  hybrid  or  all  work-from-home
arrangements in response to employee desire for more flexibility, which may lead to a downturn in the commercial real estate market. A depressed commercial
real estate market would have a negative impact on our core customer base, which could impact our customers’ ability to subscribe and pay for our services
and reduce demand for our services. Reduced demand and increased cancellations could cause our revenues or our revenue growth rates to decline and reduce
our profitability. The extent and duration of any future weakening of the economy or future downturns in the commercial real estate market as a lasting result
of the COVID-19 pandemic is unknown, and there can be no assurance that any of the governmental or private sector initiatives designed to strengthen the
economy will be successful or available to us and our customers and, if successful, when the benefits will be seen.

We are subject to a number of risks related to acceptance of credit cards and debit cards and facilitation of other customer payments.

We  depend  on  processing  vendors  to  process  a  significant  number  of  credit  and  debit  card  transactions  and  ACH  payments,  for  payments  made  to  us
directly for our services, by renters to landlords using our online leasing services, or by real estate agents to purchase our Homes.com services. If we or any
one or more of these service providers fail to maintain adequate systems to authorize and process credit card transactions, one or more of the major credit card
companies could disallow our continued use of their payment products. If we are unable to maintain our chargeback rate or refund rates at acceptable levels,
our processing vendors may increase our transaction fees or terminate their relationships with us. We could lose customers if we are not able to continue to use
payment  products  of  the  major  credit  card  companies.  Further,  if  we  or  any  one  or  more  of  these  service  providers  fail  to  maintain  adequate  systems  for
authorization and processing of credit, debit, ACH or similar payments or if any such service provider were to terminate or modify its relationship with us
unexpectedly, our ability to process those customer transactions would be adversely affected, which could decrease sales, discourage customers away from our
marketplace services, result in potential legal liability, and harm our business and reputation. In addition, if the systems for the authorization and processing of
credit card transactions fail to work properly and, as a result, we do not charge our customers’ credit cards on a timely basis or at all, our business, revenue,
results of operations and financial condition could be harmed.

We are also subject to payment card association operating rules, certification requirements and rules governing electronic funds transfers, which could
change or be reinterpreted in ways that make it more difficult for us to comply. We are required to comply with payment card industry security standards.
Failing  to  comply  with  those  standards  may  violate  payment  card  association  operating  rules,  federal  and  state  laws  and  regulations  and  the  terms  of  our
contracts with payment processors. Any failure to comply also may subject us to fines, penalties, damages and civil liability, and may result in the loss of our
ability  to  accept  credit  and  debit  card  payments.  Further,  there  is  no  guarantee  that  such  compliance  will  prevent  illegal  or  improper  use  of  our  payment
systems or the theft, loss, or misuse of data pertaining to credit and debit cards, cardholders and transactions.

The  payment  methods  that  we  offer  also  subject  us  to  potential  fraud  and  theft  by  criminals,  who  are  becoming  increasingly  sophisticated,  seeking  to
obtain unauthorized access to or exploit weaknesses that may exist in the payment systems. If we fail to comply with applicable rules or requirements for the
payment methods we accept, or if payment-related data are compromised due to a breach of data, we may be liable for significant costs incurred by payment
card issuing banks and other third parties or subject to fines and higher transaction fees, or our ability to accept or facilitate certain types of payments may be
impaired. In addition, our customers could lose confidence in certain payment types, which may result in a shift to other payment types or potential changes to
our payment systems that may result in higher costs. If we fail to adequately control fraudulent payment transactions, we may face civil liability, diminished
public perception of our security measures and higher costs, each of which could harm our business, results of operations and financial condition.

If  we  are  unable  to  maintain  our  chargeback  rate  or  refund  rates  at  acceptable  levels,  our  processing  vendors  may  increase  our  transaction  fees  or
terminate their relationships with us. Any increases in our credit and debit card fees could harm our results of operations, particularly if we elect not to raise
our rates for our services to offset the increase. The termination of our ability to process payments on any major credit or debit card would significantly impair
our ability to operate our business.

Climate  change  and  other  events  beyond  our  control  could  harm  our  business.  Natural  disasters,  disease  outbreaks  and  pandemics,  power  shortages,
terrorism,  political  unrest,  telecommunications  failure,  vandalism,  geopolitical  instability,  war,  climate  change,  and  other  events  beyond  our  control  could
negatively  impact  our  operations  or  otherwise  harm  our  business.  Such  events  may  result  in  damage  or  loss  of  service  to  our  data  centers  or  other
infrastructure that our operations rely on, potentially reduce the attractiveness of real estate in areas we provide services, cause delays in product development
or availability, or result in losses of critical data, any of which may adversely impact our operations.

In addition, the impacts of climate change on the global economy and our industry are rapidly evolving. Physical impacts of climate change (including,

but not limited to, floods, droughts, more frequent and/or intense storms, and wildfires) may

27

disrupt  our  operations,  as  well  as  the  operations  of  our  suppliers  and  customers.  Longer-term  physical  impacts  may  also  result  in  changing  consumer
preferences, which may adversely impact demand for certain of our products. Transition impacts of climate change may subject us to increased regulations,
reporting requirements (such as the SEC’s proposed climate change disclosure rule), standards, or expectations regarding the environmental impacts of our
business. Failure to disclose accurate information in a timely manner may also adversely affect our reputation, business, or financial performance.

Increased attention to ESG matters may require us to incur additional costs or otherwise adversely impact our business. Increased attention to climate
change; diversity, equity, and inclusion; and other ESG issues, as well as societal expectations regarding voluntary ESG initiatives and disclosures, may result
in increased costs (including, but not limited to, increased costs related to compliance, stakeholder engagement, and contracting), impact our reputation, or
otherwise affect our business performance. In addition, organizations that provide information to investors on corporate governance and related matters have
developed ratings processes for evaluating companies on ESG matters. Such ratings are used by some investors to inform their investment or voting decisions.
Unfavorable ESG ratings could lead to negative investor sentiment toward us and/or our industry, which could have a negative impact on our access to and
costs of capital. To the extent ESG matters negatively impact our reputation, we may also not be able to compete as effectively to recruit or retain employees.
We may take certain actions, including the establishment of ESG-related goals or targets, to improve the ESG profile of our Company and/or offerings and/or
to  respond  to  stakeholder  demand;  however,  such  actions  may  be  costly  or  be  subject  to  numerous  conditions  that  are  outside  our  control,  and  we  cannot
guarantee that such actions will have the desired effect.

Moreover, while we may create and publish voluntary disclosures regarding ESG matters from time to time, many of the statements in those voluntary
disclosures are based on hypothetical expectations and assumptions that may or may not be representative of current or actual risks or events or forecasts of
expected risks or events, including the costs associated therewith. Such expectations and assumptions are necessarily uncertain and may be prone to error or
subject to misinterpretation given the long timelines involved and the lack of an established single approach to identifying, measuring and reporting on many
ESG  matters.  Such  disclosures  may  also  be  at  least  partially  reliant  on  third-party  information  that  we  have  not  independently  verified  or  cannot  be
independently  verified.  In  addition,  we  expect  there  will  likely  be  increasing  levels  of  regulation,  disclosure-related  and  otherwise,  with  respect  to  ESG
matters, and increased regulation will likely lead to increased compliance costs as well as scrutiny that could heighten all of the risks identified in this risk
factor. Such ESG matters may also impact our suppliers or customers, which may adversely impact our business, financial condition, or results of operations.

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 information, analytics
and online marketplace services. Our success depends on our clients’ confidence in the comprehensiveness, accuracy and reliability of the data and analysis
we provide.

Establishing and maintaining accurate and reliable data and analysis is challenging. If our data, including the data we obtain from third parties or directly
from  brokers  through  the  Marketing  Center  feature  on  CoStar  and  LoopNet,  or  analysis  is  not  current,  accurate,  comprehensive  or  reliable,  we  could
experience  reduced  demand  for  our  services  or  be  subject  to  legal  claims  by  our  customers,  either  of  which  could  result  in  lower  revenues  and  higher
expenses.

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. The success of our business depends in large part on our intellectual property, including intellectual property involved in our methodologies,
databases, services and software. We rely on a combination of trademark, trade secret, patent, copyright and other laws, nondisclosure and noncompetition
provisions, license agreements and other contractual provisions and technical measures to protect our intellectual property rights. However, current law may
not  provide  for  adequate  protection  of  our  databases  and  the  actual  data.  In  addition,  legal  standards  relating  to  the  validity,  enforceability  and  scope  of
protection of proprietary rights in internet-related businesses are uncertain and evolving, and changes in these standards may adversely impact the viability or
value of our proprietary rights. We find our proprietary content on competitors’ sites. If we are not successful in protecting our intellectual property, including
our content, our brands and our business, results of operations and financial condition could be harmed. The same would be true if a court found that our
services infringe other persons’ intellectual property rights. Any intellectual property lawsuits or threatened lawsuits in which we are involved, either as a
plaintiff  or  as  a  defendant,  have  cost  us  and  could  continue  to  cost  us  a  significant  amount  of  time  and  money  and  distract  management’s  attention  from
operating our business. In addition, if we do not prevail on an intellectual property claim, this could result in a change to our methodology or information,
analytics and online marketplace services and could reduce our profitability.

Effective trademark, trade secret, patent and copyright protection may not be available in every country in which we provide our services. The laws of
certain countries do not protect proprietary rights to the same extent as the laws of the U.S. and, therefore, in certain jurisdictions, we may be unable to protect
our intellectual property and our proprietary technology

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adequately against unauthorized third-party copying or use, which could harm our competitive position. This risk will increase as we continue to expand our
business into new international jurisdictions.

We may not be able to successfully halt the operation of websites that aggregate our data, as well as data from other companies, or "copycat" websites
that may misappropriate our data. We have expended significant resources to develop proprietary content and any misappropriation of our data could reduce
that value of that content or our return on investment related to that content, which could harm our competitive position and results of operations. Third parties
may misappropriate our data through website scraping, robots or other means and aggregate and display this data on their websites. Artificial intelligence is
becoming increasingly powerful and sophisticated, and third parties may utilize artificial intelligence to misappropriate our data more quickly and at a larger
scale than in the past. In addition, “copycat” websites may misappropriate data on our website and attempt to imitate our brands or the functionality of our
website. We may not be able to detect all such websites in a timely manner and, even if we could, technological and legal measures available to us may be
insufficient to stop their operations and the misappropriation of our data. Any measures that we may take to enforce our rights could require us to expend
significant financial or other resources.

We may be subject to legal liability for collecting, displaying or distributing information. Because the content in our database is collected from various
sources and distributed to others, we may be subject to claims for breach of contract, defamation, negligence, unfair competition or copyright or trademark
infringement or claims based on other theories, such as breach of laws related to privacy and data protection. We could also be subject to claims based upon
the content that is accessible from our website through links to other websites or information on our website supplied by third parties. Even if these claims do
not  result  in  liability  to  us,  we  could  incur  significant  costs  in  investigating  and  defending  against  any  claims,  and  we  could  be  subject  to  public  notice
requirements  that  may  affect  our  reputation.  Our  potential  liability  for  information  distributed  by  us  to  others  could  require  us  to  implement  measures  to
reduce our exposure to such liability, which may require us to expend substantial resources and limit the attractiveness of our information, analytics and online
marketplaces to users. These risks may be exacerbated from impacts, or perceived impacts, of emerging technologies (including, but not limited to, machine
learning)  on  human  rights,  privacy,  or  other  social  considerations,  which  may  result  in  reputational  harm,  compliance  costs  for  any  new  rules  or
interpretations, or other adverse impacts on our operations and financial performance.

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 revenues. The value of our real estate marketplace services to our customers
depends on our ability to increase the number of property listings provided and searches conducted. As the number of listings increases, so does the utility of a
marketplace’s  search,  listing  and  marketing  services.  We  depend  substantially  on  brokers,  agents,  property  owners  and,  in  the  case  of  apartment  rentals,
property managers to submit listings to our marketplaces. If these parties choose not to continue their listings with us, or choose to list them with a competitor,
our marketplace services could be less attractive to other real estate industry transaction participants, resulting in reduced 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  attract  or  retain  customers.  Our  ability  to  attract  agents  and  consumers  to  our  Homes.com  Network,  its
websites and mobile applications and other residential real estate tools depends, to some degree, on us providing timely access to comprehensive and accurate
real estate listings and information. We get listings data primarily from MLSs in the markets we serve. We also source listings data from public records, other
third-party  listing  providers,  and  other  sources.  Many  of  our  agreements  with  real  estate  listing  providers  may  be  terminated  with  limited  notice  or  cause.
Many of our competitors and other real estate websites have similar access to MLSs and listing data and may be able to source certain real estate information
faster or more efficiently than we can. Because MLS participation is voluntary, brokers and homeowners may decline to post their listings data to their local
MLS or may seek to change or limit the way that data is distributed. Another industry participant or group could create a new listings data service, which
could impact the relative quality or quantity of information of our listing providers. The loss of existing relationships with MLSs and other listing providers,
whether due to termination of agreements, loss of MLS memberships, or otherwise, changes to our rights to use or timely access listing data or an inability to
continue  to  add  new  listing  providers  or  changes  to  the  way  real  estate  information  is  shared,  may  negatively  impact  our  listing  data  quality.  This  could
markedly  decrease  the  quantity  and  quality  of  the  sale  and  rental  data  we  provide,  reduce  customer  confidence  in  our  products  and  services  and  cause
customers to go elsewhere for real estate listings and information, which could severely harm our business, results of operations and financial condition.

If we fail to comply with the rules and compliance requirements of MLSs, our access to and use of listings data may be restricted or terminated.  Our
products  and  services  access  and  use  listings  data  through  MLS  memberships  and  must  comply  with  each  MLS’s  rules  and  compliance  requirements  to
maintain their access to listings data and remain a member in good standing. Each MLS has adopted its own rules, policies, and agreement terms governing,
among other things, how MLS data

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may  be  used  and  how  listings  data  must  be  displayed  on  our  websites  and  mobile  applications.  MLS  members  are  also  subject  to  compliance  operations
requirements and, as a result, must respond to complaints lodged by the MLS or other MLS participants on required timelines. MLS rules vary among markets
and  are  in  some  cases  inconsistent  between  MLSs,  such  that  we  are  required  to  customize  our  websites,  mobile  applications,  or  services  to  accommodate
differences  between  MLS  rules.  Handling  complaints  received  by  MLS  members  across  markets  may  create  heightened  operational  or  financial  risks  with
short  response  and  resolution  deadlines.  Complying  with  the  rules  and  compliance  requirements  of  each  MLS  requires  significant  investment,  including
personnel, technology and development resources, and the exercise of considerable judgment. Rules and compliance requirements of MLSs may be changed
across markets, including potential for targeted changes in response to our operations. If we are deemed to be noncompliant with an MLS’s rules or to have
provided improper responses to or resolution of complaints, we may face disciplinary sanctions by that MLS, which could include monetary fines, restricting
or terminating our access to that MLS’s data, or other disciplinary measures. The loss or degradation of this listings data could materially and adversely affect
traffic to our websites and mobile applications, which could severely harm our business, results of operations and financial condition.

Risks related to our international operations

International operations expose us to additional business risks, which may reduce our profitability. Our international operations and expansion subject us
to  additional  business  risks,  including:  currency  exchange  rate  fluctuations;  difficulty  in  adapting  to  the  differing  business  practices  and  laws  in  foreign
countries, including differing laws regarding privacy and data protection; difficulty in managing foreign operations; limited protection for intellectual property
rights  in  some  countries;  difficulty  in  collecting  accounts  receivable  and  longer  collection  periods;  costs  of  enforcing  contractual  obligations;  impact  of
recessions  in  economies  outside  the  U.S.;  geopolitical  instability,  terrorism  and  war;  and  potentially  adverse  tax  consequences.  In  addition,  international
expansion  imposes  additional  burdens  on  our  executive  and  administrative  personnel,  systems  development,  research  and  sales  departments  and  general
managerial  resources.  If  we  are  not  able  to  manage  our  international  operations  successfully,  we  may  incur  higher  expenses  and  our  profitability  may  be
reduced. Finally, the investment required for additional international expansion sometimes exceeds the profit generated from such expansion, which reduces
our profitability and may adversely affect our financial position.

Fluctuating foreign currency exchange rates may negatively impact our business, results of operations and financial position. A portion of our business is
denominated in foreign currencies. We translate sales and other results denominated in foreign currency into U.S. dollars for our financial statements. During
periods of a strengthening U.S. dollar, our reported international sales and earnings could be reduced because foreign currencies may translate into fewer U.S.
dollars. Foreign currency exchange rates have fluctuated and may continue to fluctuate.

Significant foreign currency exchange rate fluctuations may negatively impact our international revenue, which in turn affects our consolidated revenue.
Currently, we are not party to any hedging transactions intended to reduce our exposure to exchange rate fluctuations. We may seek to enter into hedging
transactions in the future, but we may be unable to enter into these transactions successfully, on acceptable terms or at all. We cannot predict whether we will
incur foreign exchange losses in the future. Further, significant foreign exchange rate fluctuations resulting in a decline in the respective local currency may
decrease the value of our foreign assets, as well as decrease our revenues and earnings from our foreign subsidiaries, which would reduce our profitability and
adversely affect our 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. As of December 31, 2023, we had $1 billion of Senior Notes outstanding and an additional approximately $750 million available to be drawn
under the 2020 Credit Agreement. Borrowings under the 2020 Credit Agreement bear interest at varying rates and expose us to interest rate risk. There can be
no assurance that our future cash flows will be sufficient to make payments of interest or principal on the Senior Notes or any amounts due and payable under
the 2020 Credit Agreement. If our cash flows and capital resources are insufficient to fund our debt service obligations, we could face substantial liquidity
problems and could be forced to reduce or delay investments and capital expenditures or to dispose of material assets or operations, seek additional debt or
equity capital or restructure or refinance our indebtedness. We may not be able to effect any such alternative measures on commercially reasonable terms or at
all, and, even if successful, those alternative actions may not allow us to meet our scheduled debt service obligations. Furthermore, we may incur substantial
additional  indebtedness,  including  secured  indebtedness,  and  if  we  incur  additional  indebtedness  or  other  liabilities,  the  related  risks  that  we  face  could
intensify.

The 2020 Credit Agreement contains customary restrictive covenants imposing operating and financial restrictions on us, including restrictions that may
limit our ability to engage in acts that we believe may be in our long-term best interests. These covenants restrict our ability and the ability of our domestic
subsidiaries to, among other things, (i) incur additional indebtedness, (ii) incur liens, (iii) pay dividends or make certain other restricted payments, investments
or acquisitions, (iv)

30

merge or consolidate with another person, and (v) sell, assign, lease or otherwise dispose of all or substantially all of our assets. In addition, the 2020 Credit
Agreement requires us to comply with a maintenance covenant that we will not exceed a total net leverage ratio, calculated as total consolidated debt, net of
up to $1.0 billion of unrestricted cash and cash equivalents, to consolidated EBITDA, of 4.50 to 1.00. The operating restrictions and financial covenants in the
2020 Credit Agreement may limit our ability to finance future operations or capital needs, to engage in other business activities or to respond to changes in
market conditions. Our ability to comply with any financial covenants could be affected materially by events beyond our control, and we may be unable to
satisfy any such requirements. If we fail to comply with these covenants, we may need to seek waivers or amendments of such covenants, seek alternative or
additional sources of financing or reduce our expenditures. We may be unable to obtain such waivers, amendments or alternative or additional financing on a
timely basis or at all, or on favorable terms.

A breach of the covenants under the 2020 Credit Agreement or the indenture that governs the Senior Notes could result in an event of default under the
applicable indebtedness. Such a default may allow the creditors to accelerate the related debt and may result in the acceleration of any other debt to which a
cross-acceleration provision applies. In the event the holders of the Senior Notes or our other debt accelerate the repayment of our borrowings, we and our
subsidiaries may not have sufficient assets to repay that indebtedness.

In May 2023, we amended the 2020 Credit Agreement to replace LIBOR as the reference rate with Term SOFR for U.S. dollar-denominated borrowings,
SONIA  rates  for  Sterling-denominated  borrowings  and  EURIBOR  for  Euro-denominated  borrowings.  It  is  unclear,  however,  whether  SOFR,  SONIA  or
EURIBOR  will  retain  market  acceptance  as  a  LIBOR  replacement  tool,  and  we  may  need  to  renegotiate  our  2020  Credit  Agreement  if  other  LIBOR
alternatives are established and become more widely adopted. Each of SOFR, SONIA and EURIBOR differ from LIBOR, both in the actual rate and how it is
calculated. It is not possible to predict what effect the change to SOFR, SONIA and EURIBOR may have on our interest rates.

Our indebtedness increases our vulnerability to general adverse economic and industry conditions; requires us to dedicate a portion of our cash flow from
operations to payments on indebtedness, reducing the availability of cash flow to fund capital expenditures, marketing and other general corporate activities;
limits our ability to borrow additional funds; and may limit our flexibility in planning for, or reacting to, changes in our business and the industries in which
we operate.

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.  Our  debt  rating  could  be  lowered  or  withdrawn  entirely  by  a  rating  agency  if,  in  that  rating
agency’s judgment, future circumstances relating to the basis of the rating, such as adverse changes, warrant. Any future lowering of our ratings likely would
make it more difficult or more expensive for us to obtain additional debt financing.

In  addition,  during  a  Covenant  Suspension  Period,  certain  customary  negative  and  affirmative  covenants  contained  in  the  2020  Credit  Agreement  are
suspended, including the covenants restricting affiliate transactions, incurrence of indebtedness, investments, asset sales and restricted payments. A lowering
of one or both of our investment grade ratings would result in increased compliance costs and would impose certain operating restrictions, either of which
could be materially adverse to our operations and financial results.

Risks related to regulatory compliance and legal matters

Our  actual  or  perceived  failure  to  comply  with  privacy  laws  and  standards  could  adversely  affect  our  business,  financial  condition  and  results  of
operations. We  depend  on  IT  Systems.  We  own  and  manage  some  IT  Systems  but  also  rely  on  third-party  service  providers  and  vendors  for  a  range  of
products and services, including cloud products/services, that are critical to internal and/or external customer-facing operations. In the course of our business,
we and certain of our third-party providers collect, use, transmit and disclose Confidential Information, including personal data about our employees, current
and potential customers and employees of third parties we work with.

As  a  result,  we  are  subject  to  a  variety  of  state,  national  and  international  laws  and  regulations  that  apply  to  the  collection,  use,  retention,  protection,
disclosure, transfer and other processing of personal information, including, but not limited to, the GDPR and CCPA. These laws and regulations are evolving,
with new or modified laws and regulations proposed and implemented frequently and existing laws and regulations subject to new or different interpretations.
For example, the GDPR creates data protection requirements in the EU and UK and imposes substantial fines for breaches of the data protection rules. The
GDPR increased our responsibility and liability in relation to personal data that we process. The CCPA, among other things, provides the rights to California
residents related to their personal information, places limitations on data uses and creates new audit requirements for higher risk data. The CCPA also provides
for civil penalties for violations, as well as a private right of action for data breaches that may increase data breach litigation. Other state privacy laws apply to
operations, and similar laws have been proposed, and likely will continue to be proposed, in other states and at the federal level, and if passed, may have
potentially conflicting requirements that would make compliance challenging.

31

In addition to risks we face under applicable privacy laws, we are subject to evolving consumer protection and marketing laws and increased litigation
and  government  enforcement  by  the  Federal  Trade  Commission  and  state  Attorneys  General.  These  agencies  are  aggressively  interpreting  and  enforcing
federal and state consumer protection laws in relation to very broad sales and marketing and advertising contexts. There are also federal laws covering our
activities that are a source of potential liability for our business, including the CAN-SPAM Act, the TCPA, and the FCRA. In particular, any claims that we
have violated the TCPA could be costly to litigate and could expose us to substantial statutory damages or settlement costs.

Any failure or alleged failure to comply with privacy, data protection or consumer protection laws could lead to government enforcement actions and
litigation  and  significant  penalties  against  us,  and  could  materially  adversely  affect  our  reputation,  business,  financial  condition,  cash  flows  and  results  of
operations. Compliance with any of the foregoing laws and regulations can be costly, can delay or impede the development of new products, and may require
us to change the way we operate.

The interpretation and application of many privacy and data protection laws are uncertain. These laws may be interpreted and applied in a manner that is
inconsistent  with  our  existing  data  management  practices  or  the  features  of  our  products.  If  so,  in  addition  to  the  possibility  of  negative  publicity,  fines,
lawsuits and other claims and penalties, we could be required to fundamentally change our business activities and practices or modify our products, which
could harm our business.

Changes  in  tax  laws,  regulations  or  fiscal  and  tax  policies  or  the  manner  of  their  interpretation  or  enforcement  could  adversely  impact  our  financial
performance. New tax laws or regulations, or changes in existing laws or regulations, or the manner of their interpretation or enforcement, could increase our
cost of doing business. In addition, from time to time, U.S. and foreign tax authorities, including state and local governments, consider legislation that could
increase  our  effective  tax  rate.  Further,  the  Organization  for  Economic  Co-operation  and  Development  has  a  framework  to  implement  a  global  minimum
corporate tax of 15% for companies with global revenues and profits above certain thresholds (referred to as Pillar 2), with certain aspects of Pillar 2 effective
January 1, 2024 and other aspects effective January 1, 2025. While it is uncertain whether the U.S. will enact legislation to adopt Pillar 2, certain countries in
which we operate have adopted legislation, and other countries are in the process of introducing legislation to implement Pillar 2. Although we do not expect
Pillar 2 to have a material impact on our effective tax rate or our consolidated results of operations, financial position, and cash flows at this time, certain
implementation details have yet to be developed, and the enactment of certain of these changes has not yet taken effect in all jurisdictions in which we operate.
As a result, these changes may have adverse consequences for us, may increase our compliance costs and may increase the amount of tax we are required to
pay in certain jurisdictions.

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. From time to time we may be subject to third-party claims, lawsuits,
regulatory proceedings or government investigations into whether our business practices comport with applicable law, which may include claims with respect
to  intellectual  property,  cybersecurity,  privacy,  data  protection,  antitrust,  breach  of  contract,  employment,  mergers  and  acquisitions  and  other  matters.
Regardless of the merit of such claims, proceedings or investigations, defending against them could cost us a significant amount of time and money, result in
negative publicity, and/or adversely affect our stock price. In addition, if any claims or proceedings are decided against us or if a settlement requires us to pay
a  large  monetary  amount  or  take  other  action  that  materially  restricts  or  impedes  our  operations,  our  profitability  could  be  significantly  reduced  and  our
financial position could be adversely affected.

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. We have never declared or paid any cash dividends on our common stock and do not intend to do so for the
foreseeable future. We currently intend to invest our future earnings, if any, to finance our growth or share repurchases. In addition, provisions of the 2020
Credit  Agreement  governing  our  credit  facilities  limit  our  ability  to  pay  cash  dividends.  Therefore,  you  are  not  likely  to  receive  any  dividends  on  your
common stock for the foreseeable future and the success of an investment in shares of our common stock will depend upon any future appreciation in their
value. There is no guarantee that shares of our common stock will appreciate in value or even maintain the price at which our stockholders have purchased
their shares.

Item 1B.    Unresolved Staff Comments

None.

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Item 1C.    Cybersecurity

Cybersecurity Risk Management and Strategy

We have developed and implemented a cybersecurity risk management program intended to protect the confidentiality, integrity, and availability of our

critical systems and information.

Our  cybersecurity  risk  management  program  is  guided  by  the  National  Institute  of  Standards  and  Technology  Cybersecurity  Framework  (NIST  CSF).
This does not imply that we meet any particular technical standards, specifications, or requirements at all times, only that we use the NIST CSF as a guide to
help us identify, assess, and manage cybersecurity risks relevant to our business. Additionally, we engage a third-party vendor regularly to benchmark our
information security program’s maturity against the NIST CSF.

Our  cybersecurity  risk  management  program  is  integrated  into  our  overall  enterprise  risk  management  program,  and  shares  common  methodologies,
reporting channels and governance processes that apply across the enterprise risk management program to other legal, compliance, strategic, operational, and
financial risk areas.

Key elements of our cybersecurity risk management program include, but are not limited to the following:

a.

Internal  and  external  asset  identification,  assessment,  monitoring  and  classification  procedures  to  evaluate  cybersecurity  risks  and  inform

mitigation efforts.

b. A security team principally responsible for managing (1) our cybersecurity risk assessment processes, (2) our cyber processes, and (3) our

cyber threat and incident response;

c. The use of external service providers, where appropriate, to assess defenses, analyze threat intelligence, or otherwise assist with aspects of

our security controls;

d. Cybersecurity awareness training of our employees, software development teams, incident response personnel, and senior management;

e. A cybersecurity incident response plan that includes procedures for responding to cybersecurity incidents; and regular tabletop exercises to

assess our response readiness; and

f. A third-party risk management process for key service providers, suppliers, and vendors who access critical systems and data based on risk

profile.

We have not identified material risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have materially
affected us, including our operations, business strategy, results of operations, or financial condition. We face certain ongoing risks from cybersecurity threats
that, if realized, are reasonably likely to materially affect us, including our operations, business strategy, results of operations, or financial condition. See Risk
Factors  –  “Cyberattacks  and  security  vulnerabilities  could  result  in  serious  harm  to  our  reputation,  business  and  financial  condition.”  and  “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  information,  analytics  and  online  marketplace  services,  lower
revenues and increased costs.”

Cybersecurity Governance

Our Board considers cybersecurity risk as part of its risk oversight function and has delegated to the Audit Committee oversight of cybersecurity and

other information technology risks. The Audit Committee oversees management’s implementation of our cybersecurity risk management program.

Our Audit Committee receives reports from management on our cybersecurity risks. In addition, management updates the Audit Committee, as necessary,
regarding  any  significant  cybersecurity  incidents.  The  Audit  Committee  reports  to  the  full  Board  regarding  its  activities,  including  those  related  to
cybersecurity.

Our  management  team  is  informed  and  monitors  the  prevention,  detection,  mitigation  and  remediation  of  cybersecurity  threats.  The  team  has  primary
responsibility  for  our  overall  cybersecurity  risk  management  program  and  supervises  both  our  internal  cybersecurity  personnel  and  our  retained  external
cybersecurity  consultants.  Our  management  team’s  experience  includes  industry-recognized  certifications,  such  as  CISSP,  CISM,  and  CISA,  decades  of
experience as part of our IT team, and previous cybersecurity leadership positions at various Fortune 500 companies and U.S. Defense contractors.

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Our management team is informed about and monitors the prevention, detection, mitigation, and remediation of cybersecurity risks and incidents through
various means, which may include briefings from internal security personnel; threat intelligence and other information obtained from governmental, public or
private sources, including external consultants engaged by us; and alerts and reports produced by security tools deployed in the IT environment.

Item 2.    Properties

Our headquarters is located at 1331 L Street, NW, in downtown Washington, DC, where we occupy approximately 169,000 square feet of office space,
with a lease that expires on May 31, 2025 (with two five-year renewal options). Our headquarters is used primarily by our North America operating segment.
Our  principal  facility  in  the  U.K.  is  located  in  London,  where  we  occupy  42,000  square  feet  of  office  space.  Our  lease  for  this  facility  has  a  term  ending
August 31, 2025. This facility is used by our International operating segment, including our recent acquisition, OnTheMarket.

Our staff in Richmond, Virginia occupy an owned building located at 501 S 5th Street, where we occupy approximately 310,000 square feet, an owned
building located at 901 Semmes Avenue, where we own and occupy approximately 117,000 square feet; and leased space at 951 E Byrd St., where we occupy
approximately 97,000 square feet. These locations house research, product development and sales functions. All of our owned properties are held under fee
simple ownership and are not materially encumbered.

We  also  operate  certain  of  our  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:  Hendersonville,  Tennessee;  Norfolk,  Virginia;  Boston,  Massachusetts;  New  York,  New  York;  San  Francisco,  California;  and  Los  Angeles,
California. 

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

Item 3.    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  13  “Commitments  and  Contingencies”  of  the  Notes  to  our  Consolidated  Financial  Statements.  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.

Item 4.    Mine Safety Disclosures

Not Applicable.

34

PART II

Item 5.    Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock is traded on the Nasdaq Global Select Market under the symbol “CSGP.” As of January 31, 2024, there were 1,654 holders of record

of our common stock.

Dividend Policy. We have never declared or paid any dividends on our common stock. We do not anticipate paying any dividends on our common stock

during the foreseeable future, but intend to retain any earnings for future growth of our business.

Recent Issues of Unregistered Securities. We did not issue any unregistered securities during the year ended December 31, 2023.

Issuer Purchases of Equity Securities. The following table is a summary of our repurchases of common stock for the quarter ended December 31, 2023:

ISSUER PURCHASES OF EQUITY SECURITIES

Total Number of
Shares
Purchased

(1)

Average Price Paid
per Share

12,677  $
14,445 
8,252 
35,374  $

76.89 
73.48 
88.25 

78.15 

Total Number of
Shares Purchased
as Part of Publicly
Announced Plans
or Programs

Maximum Number of
Shares that May Yet
Be Purchased Under
the Plans or
Programs

— 
— 
— 

— 

— 
— 
— 

— 

2023

October 1 through 31
November 1 through 30
December 1 through 31
Total

___________________

(1)

 The number of shares purchased consists of shares of common stock tendered by employees to the Company to satisfy the employees' minimum tax withholding obligations arising as a
result of vesting of restricted stock grants under the Company’s 2016 Stock Incentive Plan, as amended, which shares were purchased by the Company based on their fair market value on the trading
day immediately preceding the vesting date. None of these share purchases were part of a publicly announced program to purchase common stock of the Company.

Stock Price Performance Graph

The stock performance graph below shows how an initial investment of $100 in our common stock would have compared to:

• An equal investment in the S&P 500 Index; and

• An equal investment in the S&P 500 Internet Services & Infrastructure Index.

The comparison covers the period beginning December 31, 2018 and ending on December 31, 2023, and assumes the reinvestment of any dividends. Note

that this performance is historical and is not necessarily indicative of future price performance.

35

 
 
 
 
 
 
 
 
 
Company / Index
CoStar Group, Inc.
S&P 500 Index
S&P 500 Internet Services & Infrastructure Index

12/31/18

12/31/19

12/31/20

12/31/21

12/31/22

$

100.00  $
100.00 
100.00 

177.36  $
131.49 
134.46 

273.99  $
155.68 
156.09 

234.27  $
200.37 
178.95 

229.09  $
164.08 
137.79 

12/31/23
259.0
207.2
160.7

36

Item 6.    Reserved

37

Item 7.    Management’s Discussion and Analysis of Financial Condition and Results of Operations

The  following  Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations  contains  “forward-looking  statements,”
including statements about our beliefs and expectations. There are many risks and uncertainties that could cause actual results to differ materially from those
discussed in the forward-looking statements. Potential factors that could cause actual results to differ materially from those discussed in any forward-looking
statements include, but are not limited to, those stated above in under the heading “Cautionary Statement Concerning Forward-Looking Statements” and in
Item 1A. under the heading “Risk Factors,” as well as those described from time to time in our filings with the SEC.

All forward-looking statements are based on information available to us on the date of this filing and we assume no obligation to update such statements,
whether as a result of new information, future events or otherwise. The following discussion should be read in conjunction with our Quarterly Reports on
Form 10-Q, Current Reports on Form 8-K and other filings with the SEC and the consolidated financial statements and related notes included in this Report.

Overview

Our principal information, analytics and online marketplace services are described in the following paragraphs by type of service:

CoStar

CoStar is our subscription-based integrated platform for commercial real estate intelligence, which includes information about office, industrial, retail,
multifamily, hospitality and student housing properties, properties for sale, comparable sales, tenants, space available for lease, industry professionals and their
business relationships, industry news and market status and provides lease analytical, risk management, and hospitality benchmarking capabilities. CoStar's
revenue growth rate for the year ended December 31, 2023 slowed compared to the year ended December 31, 2022. We expect CoStar's revenue growth rate
for the year ending December 31, 2024 to be consistent with the revenue growth rate for the year ended December 31, 2023 primarily due to converting legacy
STR customers to our new CoStar based benchmarking product offsetting lower inflation-based price adjustments.

Information Services

We provide real estate and lease management technology solutions, including lease administration, lease accounting and abstraction services, through our
CoStar  Real  Estate  Manager  service  offerings,  as  well  as  portfolio  and  debt  analysis,  management  and  reporting  capabilities  through  our  CoStar  Risk
Analytics service offerings. We also provide benchmarking and analytics for the hospitality industry both on a subscription basis and an ad hoc basis. We earn
revenue on ad hoc transactions as reports or data are delivered to customers. We provide information services internationally, through our Business Immo,
Belbex and Thomas Daily businesses in France, Spain and Germany, respectively. Information Services revenue growth rate for the year ended December 31,
2023 slowed compared to the year ended December 31, 2022. We expect Information Services' revenue growth rate for the year ending December 31, 2024 to
slow compared to the revenue growth rate for the year ended December 31, 2023 as a result of transitioning legacy STR customers to our new CoStar based
benchmarking product.

Multifamily

Apartments.com is the flagship brand of our apartment marketing network of subscription-based advertising services and provides property management
companies and landlords with a comprehensive advertising destination for their available rental units and offers renters a platform for searching for available
rentals. This network also earns transaction-based revenue primarily from providing online tenant applications, including background and credit checks, and
rental payment processing. Multifamily's revenue growth rate for the year ended December 31, 2023 accelerated compared to the year ended December 31,
2022 as a result of higher sales volumes driven by increases in pricing on renewals and an increase in the number of properties listed on our network. We
expect  Multifamily's  revenue  growth  rate  for  the  year  ending  December  31,  2024  to  moderate  compared  to  the  revenue  growth  rate  for  the  year  ended
December 31, 2023 due to lower inflation-based price adjustments.

LoopNet

Our LoopNet network of commercial real estate websites offer subscription-based, online marketplace services that enable commercial property owners,
landlords and real estate agents working on their behalf to advertise properties for sale or for lease and to submit detailed information about property listings.
Commercial real estate agents, buyers and tenants use the LoopNet network of online marketplace services to search for available property listings that meet
their criteria. LoopNet's revenue growth rate for the year ended December 31, 2023 accelerated compared to the year ended December 31, 2022, due to an
increase in the average price per listing. We expect LoopNet's revenue growth rate for the year ending December 31, 2024 to

38

slow compared to the revenue growth rate for the year ended December 31, 2023 as a result of disruptions related to transitioning sales and service activities to
a dedicated LoopNet field sales team.

Residential

Our Homes.com Network and the acquisition of OnTheMarket have enabled us to expand our offerings to the residential for sale market. Homes.com is a
homes for sale listings site that combines our proprietary research with listing information to allow homebuyers an informative and collaborative experience
finding homes for sale or lease. Homes.com provides residential real estate professionals subscription-based access to applications that manage residential real
estate agent workflow and receives transaction-based revenue for marketing campaigns delivered on third-party platforms. In February 2024, we began selling
subscription memberships to promote the home listing as well as the agent in the sort order. OnTheMarket is a property portal in the U.K., which primarily
offers subscriptions-based advertising services to agents. Residential's revenues for the year ended December 31, 2023 decreased compared to the year ended
December 31, 2022, due to the discontinuation of certain non-strategic products and services. We expect Residential's revenues for the year ending December
31, 2024 to increase compared to the year ended December 31, 2023 due to the OnTheMarket Acquisition and the launch of our new Homes.com product.

Other Marketplaces

Our  other  marketplaces  include  Ten-X,  an  online  auction  platform  for  commercial  real  estate  and  our  BizBuySell  and  Land.com  networks.  The
BizBuySell network provides online marketplaces for businesses and franchises for sale, and THE Land.com network provides online marketplaces for rural
land for sale. Other marketplaces' revenues for the year ended December 31, 2023 decreased compared to the year ended December 31, 2022, due to lower
Ten-X transaction revenue, partially offset by growth in other products. We expect other marketplaces' revenues for the year ending December 31, 2024 to be
consistent with the revenues for the year ended December 31, 2023.

Subscription-based Services

The  majority  of  our  revenue  is  generated  from  service  offerings  that  are  distributed  to  our  clients  under  subscription-based  agreements  that  typically

renew automatically and have a term of at least one year. We recognize subscription revenues on a straight-line basis over the life of the contract.

For  the  years  ended  December  31,  2023,  2022  and  2021,  our  annualized  net  new  bookings  of  subscription-based  services  on  all  contracts  were
approximately $286 million, $305 million and $217 million, respectively. Net new bookings is calculated based on the annualized amount of change in the
Company's sales bookings resulting from new subscription-based contracts, changes to existing subscription-based contracts and cancellations of subscription-
based contracts for the period reported. Net new bookings is calculated on all subscription-based contracts without regard to contract term. Net new bookings
is considered an operating metric that is an indicator of future subscription revenue growth and is also used as a metric of sales force productivity by us and
investors.  However,  information  regarding  net  new  bookings  is  not  comparable  to,  nor  should  it  be  substituted  for,  an  analysis  of  our  revenues  over  time.
Revenue from our subscription-based contracts were approximately 95%, 93% and 93% of total revenue for the years ended December 31, 2023, 2022 and
2021, respectively. The increase in the percentage of our revenue from subscription-based contracts from 2022 to 2023 was primarily due to the growth in our
subscription-based services.

For the trailing 12 months ended December 31, 2023, 2022 and 2021, our contract renewal rates for subscription-based services for contracts with a term
of at least one year were approximately 90%, 90% and 92%, respectively; and, therefore, our cancellation rates for those services for the same periods were
approximately 10%, 10% and 8%, respectively. Our contract renewal rate is a quantitative measurement that is typically closely correlated with our revenue
results.  As  a  result,  we  believe  that  the  rate  may  be  a  reliable  indicator  of  short-term  and  long-term  performance  absent  extraordinary  circumstances.  Our
trailing  12-month  contract  renewal  rate  may  decline  as  a  result  of  negative  economic  conditions,  consolidations  among  our  clients,  reductions  in  customer
spending or decreases in our customer base. Revenue from our subscription-based contracts with a term of at least one year were approximately 82%, 80%
and 77% of total revenue for the trailing 12 months ended December 31, 2023, 2022 and 2021, respectively. The increase in the percentage of our revenue
from subscription-based contracts for contracts with a term of at least one year from 2022 to 2023 was due to increases in sales of longer term advertising
products. The decrease in the percentage of our revenue from subscription-based contracts with a term of at least one year from 2023 to 2022 was primarily
due to the acquisitions of companies that contained a higher percentage of transaction-based revenue than our legacy businesses, as well as increases in sales
of shorter term advertising products.

Development, Investments and Expansion

39

We plan to continue to invest in our business and our services, evaluate strategic growth opportunities and pursue our key priorities as described below.
We are committed to supporting, improving and enhancing our information, analytics and online marketplace solutions, including expanding and improving
our offerings for our client base and site users, including property owners, property managers, buyers, commercial tenants and residential renters and buyers.
We  expect  to  continue  our  software  development  efforts  to  improve  existing  services,  introduce  new  services,  integrate  and  cross-sell  services,  integrate
recently completed acquisitions and expand and develop supporting technologies for our research, sales and marketing organizations. We may reevaluate our
priorities as economic conditions continue to evolve.

Our key priorities for the year ending December 31, 2024 currently include:

•

•

Continuing  to  develop  and  invest  in  our  residential  marketplaces.  For  Homes.com  we  are  creating  additional  content  for  neighborhoods,  parks,
schools and condos. In February 2024, we launched our new Homes.com subscription memberships to promote the home listing as well as the agent
in the sort order on the website. We intend to create an expanded dedicated sales force, to supplement the efforts of our sales team already in place.
We plan to increase our residential marketing investment, including the launch of a brand campaign.

For OnTheMarket, we plan to integrate OnTheMarket into the Company’s operations including additional investment in marketing, content creation
and enhancing OnTheMarket’s website to improve performance and facilitate better search engine optimization.

Continuing to enhance our facilities. We are expanding our research and technology center in Richmond, Virginia. We broke ground on the expansion
in November 2022 and expect construction to be substantially completed in the first half of 2026. The expansion includes construction of two new
buildings spanning 750,000 square feet and will bring our campus footprint to over 1 million square feet when completed. We plan to increase our
research, technology, operations, software development, marketing and sales teams in this location.

In February 2024, we closed on the purchase of a building in Arlington, Virginia and we plan to build out a space for our employees. The lease on our
current Washington, DC headquarters ends in 2025.

We expect our investment in these priorities will increase our research, selling and marketing and facilities expenses, including potential impairments of
assets associated with the acquired building. Each of these will reduce our net income and may reduce our cash on hand for the year ending December 31,
2024 compared to the year ended December 31, 2023. We intend to continue to assess the need for additional investments in our business in order to develop
and distribute new services and functionality within our current platform or expand the reach of, or otherwise improve, our current service offerings. Any
future product development or expansion of services, combination and coordination of services or elimination of services or corporate expansion, development
or restructuring efforts could reduce our profitability and increase our capital expenditures. Any new investments, changes to our service offerings or other
unforeseen events could cause us to experience reduced revenues or generate losses and negative cash flow from operations in the future. Any development
efforts must comply with our credit facility, which contains restrictive covenants that restrict our operations and use of our cash flow and may prevent us from
taking certain actions that we believe could increase our profitability or otherwise enhance our business.

For further discussion of our Company, strategy and products, see our business overview set forth in "Item 1. Business" in this Report.

Impacts of Current Economic Conditions

In  response  to  the  concerns  over  inflation  risk,  the  U.S.  Federal  Reserve  raised  interest  rates  over  the  past  two  years.  It  is  currently  unclear  how  the
commercial real estate industry will ultimately be impacted by the current economic conditions. Rising interest rates or a period of elevated interest rates may
reduce  demand  for  all  types  of  real  estate.  If  the  demand  for  office  space  or  other  real  estate  decreases  significantly,  there  could  be  a  downturn  in  the
commercial real estate market that may materially adversely affect many of our clients. A depressed commercial real estate market would have a negative
impact  on  our  core  customer  base,  which  could  impact  our  customers’  ability  to  subscribe  and  pay  for  our  services  and  reduce  demand  for  our  services.
Reduced demand and increased cancellations could cause our revenues or our revenue growth rates to decline and reduce our profitability.

Non-GAAP Financial Measures

We prepare and publicly release quarterly unaudited financial statements prepared in accordance with GAAP. We also disclose and discuss certain non-
GAAP financial measures in our public releases, investor conference calls and filings with the SEC. The non-GAAP financial measures that we may disclose
include EBITDA, adjusted EBITDA, adjusted EBITDA margin,

40

 
 
non-GAAP  net  income  and  non-GAAP  net  income  per  diluted  share.  EBITDA  is  our  net  income  before  interest  income  or  expense,  net,  other  income  or
expense, net, loss on debt extinguishment, income taxes, depreciation and amortization. We typically disclose EBITDA on a consolidated and an operating
segment basis in our earnings releases, investor conference calls and filings with the SEC. Adjusted EBITDA is different from EBITDA because we further
adjust EBITDA for stock-based compensation expense, acquisition- and integration-related costs, restructuring costs and settlements and impairments incurred
outside our ordinary course of business. Adjusted EBITDA margin represents adjusted EBITDA divided by revenues for the period. Non-GAAP net income is
determined by adjusting our net income for stock-based compensation expense, acquisition- and integration-related costs, restructuring costs, settlement and
impairment costs incurred outside our ordinary course of business and loss on debt extinguishment, as well as amortization of acquired intangible assets and
other related costs, and then subtracting an assumed provision for income taxes. Non-GAAP net income per diluted share is a non-GAAP financial measure
that represents non-GAAP net income divided by the number of diluted shares outstanding for the period used in the calculation of GAAP net income per
diluted share.

We may disclose adjusted EBITDA, adjusted EBITDA margin, non-GAAP net income and non-GAAP net income per diluted share on a consolidated
basis in our earnings releases, investor conference calls and filings with the SEC. The non-GAAP financial measures that we use may not be comparable to
similarly  titled  measures  reported  by  other  companies.  Also,  in  the  future,  we  may  disclose  different  non-GAAP  financial  measures  in  order  to  help  our
investors meaningfully evaluate and compare our results of operations to our previously reported results of operations or to those of other companies in our
industry.

We  view  EBITDA,  adjusted  EBITDA,  adjusted  EBITDA  margin,  non-GAAP  net  income  and  non-GAAP  net  income  per  diluted  share  as  operating
performance measures. We believe that the most directly comparable GAAP financial measure to EBITDA, adjusted EBITDA and non-GAAP net income is
net income. We believe the most directly comparable GAAP financial measures to non-GAAP net income per diluted share and adjusted EBITDA margin are
net income per diluted share and net income divided by revenue, respectively. In calculating EBITDA, adjusted EBITDA, adjusted EBITDA margin, non-
GAAP  net  income  and  non-GAAP  net  income  per  diluted  share,  we  exclude  from  net  income  the  financial  items  that  we  believe  should  be  separately
identified to provide additional analysis of the financial components of the day-to-day operation of our business. We have outlined below the type and scope
of these exclusions and the material limitations on the use of these non-GAAP financial measures as a result of these exclusions. EBITDA, adjusted EBITDA,
adjusted EBITDA margin, non-GAAP net income and non-GAAP net income per diluted share are not measurements of financial performance under GAAP
and should not be considered as a measure of liquidity, as an alternative to net income or as an indicator of any other measure of performance derived in
accordance with GAAP. Investors and potential investors in our securities should not rely on EBITDA, adjusted EBITDA, adjusted EBITDA margin, non-
GAAP net income and non-GAAP net income per diluted share as a substitute for any GAAP financial measure, including net income and net income per
diluted share. In addition, we urge investors and potential investors in our securities to carefully review the GAAP financial information included as part of
our Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q that are filed with the SEC, as well as our quarterly earnings releases, and compare
the  GAAP  financial  information  with  our  EBITDA,  adjusted  EBITDA,  adjusted  EBITDA  margin,  non-GAAP  net  income  and  non-GAAP  net  income  per
diluted share.

EBITDA,  adjusted  EBITDA,  adjusted  EBITDA  margin,  non-GAAP  net  income  and  non-GAAP  net  income  per  diluted  share  may  be  used  by
management to internally measure our operating and management performance and may be used by investors as supplemental financial measures to evaluate
the performance of our business. We believe that these non-GAAP measures, when viewed with our GAAP results and accompanying reconciliations, provide
additional information to investors that is useful to understand the factors and trends affecting our business without the impact of certain acquisition-related
items.  We  have  spent  more  than  30  years  building  our  database  of  commercial  real  estate  information  and  expanding  our  markets  and  services  partially
through acquisitions of complementary businesses. Due to these acquisitions, our net income has included significant charges for amortization of acquired
intangible assets, depreciation and other amortization, acquisition- and integration-related costs, restructuring costs and loss on debt extinguishment. Adjusted
EBITDA,  adjusted  EBITDA  margin,  non-GAAP  net  income  and  non-GAAP  net  income  per  diluted  share  exclude  these  charges  and  provide  meaningful
information  about  the  operating  performance  of  our  business,  apart  from  charges  for  amortization  of  acquired  intangible  assets,  depreciation  and  other
amortization, acquisition- and integration-related costs, restructuring costs; settlement and impairment costs incurred outside our ordinary course of business.
We believe the disclosure of non-GAAP measures can help investors meaningfully evaluate and compare our performance from quarter-to-quarter and from
year-to-year  without  the  impact  of  these  items.  We  also  believe  the  non-GAAP  measures  we  disclose  are  measures  of  our  ongoing  operating  performance
because the isolation of non-cash charges, such as amortization and depreciation, and other items, such as interest income or expense, net, other income or
expense, net, income taxes, stock-based compensation expenses, acquisition- and integration-related costs, restructuring costs, loss on debt extinguishment and
settlement and impairment costs incurred outside our ordinary course of business, provides additional information about our cost structure, and, over time,
helps track our operating progress. In addition, investors, securities analysts and others have regularly relied on EBITDA and may rely on adjusted EBITDA,
adjusted

41

EBITDA  margin,  non-GAAP  net  income  or  non-GAAP  net  income  per  diluted  share  to  provide  a  financial  measure  by  which  to  compare  our  operating
performance against that of other companies in our industry.

Set forth below are descriptions of financial items that have been excluded from net income to calculate EBITDA and the material limitations associated

with using this non-GAAP financial measure as compared to net income:

• Amortization of acquired intangible assets in cost of revenues may be useful for investors to consider because it represents the diminishing value of
any  acquired  trade  names  and  other  intangible  assets  and  the  use  of  our  acquired  technology,  which  is  one  of  the  sources  of  information  for  our
database of commercial real estate information. We do not believe these charges necessarily reflect the current and ongoing cash charges related to
our operating cost structure.

• Amortization of acquired intangible assets in operating expenses may be useful for investors to consider because it represents the estimated attrition
of our acquired customer base. We do not believe these charges necessarily reflect the current and ongoing cash charges related to our operating cost
structure.

• Depreciation and other amortization may be useful for investors to consider because they generally represent the wear and tear on our property and
equipment used in our operations. We do not believe these charges necessarily reflect the current and ongoing cash charges related to our operating
cost structure.

•

•

•

The amount of interest income or expense, net and other income or expense, net we generate and incur may be useful for investors to consider and
may result in current cash inflows and outflows. However, we do not consider the amount of interest income or expense, net and other income or
expense, net to be a representative component of the day-to-day operating performance of our business.

Income tax expense may be useful for investors to consider because it generally represents the taxes which may be payable for the period and the
change in deferred income taxes during the period and may reduce the amount of funds otherwise available for use in our business. However, we do
not consider the amount of income tax expense to be a representative component of the day-to-day operating performance of our business.

The  amount  of  loss  on  our  debt  extinguishment  may  be  useful  for  investors  to  consider  because  it  generally  represents  losses  from  the  early
extinguishment of debt. However, we do not consider the amount of the loss on debt extinguishment to be a representative component of the day-to-
day operating performance of our business.

Set  forth  below  are  descriptions  of  additional  financial  items  that  have  been  excluded  from  EBITDA  to  calculate  adjusted  EBITDA  and  the  material

limitations associated with using this non-GAAP financial measure as compared to net income:

•

•

•

•

Stock-based compensation expense may be useful for investors to consider because it represents a portion of the compensation of our employees and
executives. Determining the fair value of the stock-based instruments involves a high degree of judgment and estimation and the expenses recorded
may  bear  little  resemblance  to  the  actual  value  realized  upon  the  future  exercise  or  termination  of  the  related  stock-based  awards.  Therefore,  we
believe it is useful to exclude stock-based compensation in order to better understand the long-term performance of our core business.

The  amount  of  acquisition-  and  integration-related  costs  incurred  may  be  useful  for  investors  to  consider  because  such  costs  generally  represent
professional service fees and direct expenses related to acquisitions. Because we do not acquire businesses on a predictable cycle, we do not consider
the amount of acquisition- and integration-related costs to be a representative component of the day-to-day operating performance of our business.

The amount of settlement and impairment costs incurred outside of our ordinary course of business may be useful for investors to consider because
they  generally  represent  gains  or  losses  from  the  settlement  of  litigation  matters,  charges  related  to  terminations  of  contracts  or  impairments  of
acquired intangible assets or other long lived assets. We do not believe these charges necessarily reflect the current and ongoing cash charges related
to our operating cost structure.

The amount of restructuring costs incurred may be useful for investors to consider because they generally represent costs incurred in connection with
a change in a contract or a change in the makeup of our properties or personnel. Because we do not carry out restructuring activities on a predictable
cycle, we do not consider the amount of restructuring related costs to be a representative component of the day-to-day operating performance of our
business.

The financial items that have been excluded from our net income to calculate non-GAAP net income and non-GAAP net income per diluted share are
amortization  of  acquired  intangible  assets  and  other  related  costs,  stock-based  compensation,  acquisition-  and  integration-related  costs,  restructuring  and
related costs and settlement and impairment costs incurred outside

42

our ordinary course of business. These items are discussed above with respect to the calculation of adjusted EBITDA together with the material limitations
associated with using this non-GAAP financial measure as compared to net income. In addition to these exclusions from net income, we subtract an assumed
provision for income taxes to calculate non-GAAP net income. In both 2023 and 2022, we assumed a 26% tax rate, which approximated our historical long-
term statutory corporate tax rate, excluding the impact of discrete items.

Management  compensates  for  the  above-described  limitations  of  using  non-GAAP  measures  by  using  a  non-GAAP  measure  only  to  supplement  our

GAAP results and to provide additional information that is useful to investors to understand the factors and trends affecting our business.

See Note 14 of the Notes to Consolidated Financial Statements included in Part IV of this Report for the reconciliation of our net income to our EBITDA.

43

Consolidated Results of Operations

The following table provides our selected consolidated results of operations for the indicated periods (in millions and as a percentage of total revenue):

Revenues
Cost of revenues
Gross profit
Operating expenses:

Selling and marketing (excluding customer base amortization)
Software development
General and administrative
Customer base amortization

(1)

Total operating expenses
Income from operations
(1)
Interest income (expense), net
Other income, net
Income before income taxes
Income tax expense

(1)

(1)

Net income
__________________________

(1) 

Amounts may not foot due to rounding.

2023

2,455.0 
491.5 
1,963.5 

989.9 
267.6 
381.5 
42.2 
1,681.2 
282.3 
213.6 
5.4 
501.3 
126.6 
374.7 

$

$

Year Ended December 31,
2022

2021

100 % $
20 
80 

40 
11 
16 
2 
68 
11 
9 
— 
20 
5 

15 % $

2,182.4 
414.0 
1,768.4 

684.2 
220.9 
338.7 
73.6 
1,317.4 
451.0 
32.1 
3.4 
486.5 
117.0 
369.5 

100 % $
19 
81 

31 
10 
16 
3 
60 
21 
1 
— 
22 
5 

17 % $

1,944.1 
357.2 
1,586.9 

622.0 
201.0 
256.8 
74.8 
1,154.6 
432.3 
(31.6)
3.3 
404.0 
111.4 
292.6 

100 %
18 
82 

32 
10 
13 
4 
59 
22 
(2)
— 
21 
6 
15 %

The following table provides our revenues by type of service (in millions and as a percentage of total revenue):

CoStar
Information services
Multifamily
LoopNet
Residential
Other marketplaces

Total revenues
__________________________

(1)(2)

2023

925.2 
170.9 
914.2 
264.8 
46.1 
133.8 
2,455.0 

$

$

Year Ended December 31,
2022

38 % $

7 
37 
11 
2 
5 

100 % $

837.0 
157.4 
745.4 
230.9 
73.7 
138.0 
2,182.4 

38 % $

7 
34 
11 
3 
6 

100 % $

2021

722.8 
141.7 
678.7 
207.5 
74.6 
118.8 
1,944.1 

37 %
7 
35 
11 
4 
6 
100 %

(1) 

(2)

For further discussion of our Company, strategy and products, see our business overview set forth in "Item 1. Business" in this Report.
 Totals may not foot due to rounding.

44

 
 
 
 
Comparison of Year Ended December 31, 2023 and Year Ended December 31, 2022

The  following  table  provides  a  comparison  of  our  selected  consolidated  results  of  operations  for  the  years  ended  December  31,  2023  and  2022  (in

millions):

Revenues:
CoStar
Information services
Multifamily
LoopNet
Residential
Other marketplaces

Total revenues
Cost of revenues
Gross profit
Operating expenses:

Selling and marketing (excluding customer base amortization)
Software development
General and administrative
Customer base amortization

Total operating expenses
Income from operations
Interest income, net
Other income, net
Income before income taxes
Income tax expense

Net income

2023

2022

Increase
(Decrease)

Increase
(Decrease)

$

$

925.2  $
170.9 
914.2 
264.8 
46.1 
133.8 
2,455.0 
491.5 
1,963.5 

989.9 
267.6 
381.5 
42.2 
1,681.2 
282.3 
213.6 
5.4 
501.3 
126.6 
374.7  $

837.0  $
157.4 
745.4 
230.9 
73.7 
138.0 
2,182.4 
414.0 
1,768.4 

684.2 
220.9 
338.7 
73.6 
1,317.4 
451.0 
32.1 
3.4 
486.5 
117.0 
369.5  $

88.2 
13.5 
168.8 
33.9 
(27.6)
(4.2)
272.6 
77.5 
195.1 

305.7 
46.7 
42.8 
(31.4)
363.8 
(168.7)
181.5 
2.0 
14.8 
9.6 
5.2 

10.5 %
8.6 
22.6 
14.7 
(37.4)
(3.0)
12.5 
18.7 
11.0 

44.7 
21.1 
12.6 
(42.7)
27.6 
(37.4)
565.4 
58.8 
3.0 
8.2 

1.4 %

Revenues. Revenues increased $273 million, or 12.5%, to $2.5 billion. The increase in our revenues included:

•

•

•

•

•

•

an increase in Multifamily revenues of $169 million, or 22.6%, due to higher sales volume driven by an increase in the number of properties listed on
our network and increases in pricing on renewals,

an increase in CoStar revenues of $88 million, or 10.5%, due to higher sales volume driven by the impact of annual price increases and customer
upgrades on contract renewals, as well as an increase in subscribers,

an increase in LoopNet revenues of $34 million, or 14.7%, due to an increase in the average price for listings,

an increase in Information services revenues of $14 million, or 8.6%, primarily attributable to an increase in revenues for STR of $7 million, CoStar
Real Estate Manager of $5 million and $2 million of revenue related to the Business Immo Acquisition,

a decrease in Residential revenues of $28 million, or 37.4%, due to the discontinuation of certain products and services that were inconsistent with
our long-term business strategy partially offset by $2 million of revenue related to the OnTheMarket Acquisition and

a decrease in Other marketplaces revenues of $4 million, or 3.0%, due to lower property volumes auctioned on Ten-X partially offset by increases in
revenue of Land.com.

Gross Profit and Cost of Revenues. Gross profit increased $195 million, or 11.0%, to $2.0 billion in 2023, and the gross profit percentage decreased from
81% to 80%. The increase in gross profit was due to higher revenues partially offset by an increase in the cost of revenues. Cost of revenues increased $78
million, or 18.7% to $492 million and, as a percentage of revenues, increased from 19% to 20%. The increase in cost of revenues included:

45

 
 
•

•

•

an increase in personnel costs of $61 million related to rising headcount to support our residential research efforts, and increases in salaries, bonus,
stock-based compensation and benefits costs for our existing employees,

an increase of $25 million in technology costs to host our database and products and

an decrease of $11 million in expenses related to advertising purchased on behalf of customers.

Selling and Marketing Expenses. Selling and marketing expenses increased $306 million, or 44.7%, to $990 million and, as a percentage of revenues,

increased from 31% to 40%. The increase included:

•

•

an increase in marketing expenses of $244 million for advertising our brands,

an increase in personnel and events costs of $63 million related to rising headcount in our sales force and increases in salaries, bonus, stock-based
compensation and benefits costs for our existing employees and

Software  Development  Expenses.  Software  development  expenses  increased  $47  million,  or  21.1%  to  $268  million  and,  as  a  percentage  of  revenues,
increased from 10% to 11%. The increase primarily included higher personnel costs of $42 million related to rising headcount to support our residential efforts
and increases in salaries, bonus, stock-based compensation and benefits costs for our existing employees.

General and Administrative Expenses.  General  and  administrative  expenses  increased  $43  million,  or  12.6%,  to  $382  million  and,  as  a  percentage  of

revenues, was consistent at 16%. The increase included:

•

•

•

an  increase  of  $17  million  in  credit  loss  expense  primarily  due  to  our  expectations  that  the  downturn  in  the  commercial  real  estate  market  will
increase delinquent trade receivables,

an increase of $19 million in professional service costs due to diligence efforts associated with potential acquisitions and legal fees to defend our
intellectual property rights and

an  increase  of  $11  million  in  personnel  costs  related  to  increases  in  salaries,  bonus,  stock-based  compensation  and  benefits  costs  for  our  existing
employees and rising headcount.

Customer  Base  Amortization  Expense.  Customer  base  amortization  expense  decreased  $31  million,  or  42.7%,  to  $42  million  and,  as  a  percentage  of
revenues, decreased from 3% to 2%. The decrease was primarily attributable to acceleration of amortization of $16 million related to eliminating certain usage
fees for agent access to the Homesnap product recorded in 2022, as well as a reduction in amortization expense related to customer base assets acquired in the
acquisitions of LoopNet, ForRent and Ten-X, which have been amortizing on an accelerated basis since the respective acquisitions.

Interest Income, Net. Interest income, net increased $182 million, or 565.4%, to $214 million due to an increase in interest earned on our cash equivalents.

Other Income, Net. Other income, net was insignificant for both the years ended December 31, 2023, and 2022.

Income Tax Expense. Income tax expense increased $10 million, or 8.2%, to $127 million and the effective tax rate increased 1% to 25% of income before
income taxes. The increase in income tax expense was primarily attributable to additional income before income taxes and a benefit recognized in 2022 for
state tax credits.

For  a  comparison  of  our  results  of  operations  for  the  fiscal  year  ended  December  31,  2022  to  the  year  ended  December  31,  2021,  see  Item  7,
Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations  in  our  Annual  Report  on  the  Form  10-K  for  the  year
ended December 31, 2022, which was filed with the SEC on February 22, 2023.

Comparison of Business Segment Results for Year Ended December 31, 2023 and Year Ended December 31, 2022

We manage our business geographically in two operating segments, with the primary areas of measurement and decision-making being North America,
which includes the U.S. and Canada, and International, which primarily includes Europe, Asia-Pacific and Latin America. Management relies on an internal
management reporting process that provides revenue and operating segment EBITDA, which is our net income before interest income or expense, net, other
income or expense, net, loss on debt extinguishment, income taxes, depreciation and amortization. Management believes that operating segment EBITDA is
an  appropriate  measure  for  evaluating  the  operational  performance  of  our  operating  segments.  EBITDA  is  used  by  management  to  internally  measure
operating and management performance and to evaluate the performance of our business.

Segment Revenues. North America revenues increased $260 million, or 12.3%, to $2.4 billion and included:

46

•

•

•

•

•

•

an increase in CoStar revenues of $86 million, or 10.7%, due to higher sales volume driven by the impact of annual price increases and customer
upgrades on contract renewals, as well as an increase in subscribers,

an increase in Information services revenues of $7 million, or 5.9%, primarily attributable to an increase in revenues for CoStar Real Estate Manager
of $5 million and STR of $3 million,

an increase in Multifamily revenues of $169 million, or 22.7%, due to higher sales volume driven by increases in pricing on renewals and an increase
in the number of properties listed on our network,

an increase in LoopNet revenues of $32 million, or 14.2%, due to an increase in the average price for listings,

a decrease in Residential revenues of $30 million, or 40.4%, due to the discontinuation of certain products and services that were inconsistent with
our long-term business strategy and

a decrease in Other marketplaces revenues of $4 million, or 3.0%, due to the lower property volumes auctioned on Ten-X partially offset by increases
in revenue of Land.com..

International revenues increased $13 million, or 16.9%, to $89 million and primarily included:

•

•

•

•

an increase in Information services revenues of $6 million, or 18.8%, primarily attributable to an increase in revenues for STR of $4 million and $2
million of revenue related to the Business Immo Acquisition,

an  increase  in  CoStar  revenues  of  $2  million,  or  6.5%,  due  to  higher  sales  volume  driven  by  the  impact  of  annual  price  increases  and  customer
upgrades on contract renewals, as well as an increase in subscribers,

an increase in LoopNet revenues of $2 million, or 30.6%, due to an increase in the average price for listings and

$2 million of revenue related to the OnTheMarket Acquisition.

Segment EBITDA.  North  America  EBITDA  decreased  to  $403  million  for  the  year  ended  December  31,  2023,  from  $577  million  for  the  year  ended
December 31, 2022. The decrease in North America EBITDA was primarily due to increases in personnel costs, marketing costs, technology hosting costs,
professional service fees, sales events costs, credit loss expense and occupancy costs partially offset by increases in revenues described above. International
EBITDA decreased to a loss of $13 million for the year ended December 31, 2023 from $5 million for the year ended December 31, 2022. The decrease was
due to increased personnel costs, partially offset by, an increase in revenue.

For  a  comparison  of  our  business  segment  results  of  operations  for  the  fiscal  year  ended  December  31,  2022  to  the  year  ended  December  31,  2021,
see  Item  7,  Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations  in  our  Annual  Report  on  Form  10-K  for  the  year
ended December 31, 2022, which was filed with the SEC on February 22, 2023.

Liquidity and Capital Resources

We believe the balance of cash and cash equivalents, which was $5.2 billion as of December 31, 2023, along with cash generated by ongoing operations
and  continued  access  to  capital  markets,  will  be  sufficient  to  satisfy  our  cash  requirements  over  the  next  12  months  and  beyond.  Our  material  cash
requirements include the following contractual and other obligations.

Debt. As of December 31, 2023, we had outstanding an aggregate principal amount of $1.0 billion of Senior Notes due July 15, 2030. Future interest

payments associated with the Senior Notes are $196.0 million, with $28.0 million payable within 12 months.

Leases.  We  have  lease  arrangements  for  office  facilities,  data  centers  and  certain  vehicles.  As  of  December  31,  2023,  we  had  fixed  lease  payment

obligations of $110 million, with $39 million payable within 12 months.

Purchase Obligations. Our purchase obligations are associated with agreements that are enforceable and legally binding and that specify all significant
terms, including fixed or minimum services to be used, fixed, minimum or variable price provisions, and the approximate timing of the transaction and have
an original term greater than one year. The services acquired under these agreements primarily relate to web hosting, sponsorship agreements, third-party data
or listings and software subscriptions. As of December 31, 2023, we had purchase obligations of $264 million, with $81 million payable within 12 months.

47

Construction Commitments. We are expanding our Richmond, Virginia campus, which is expected to result in material cash requirements in 2024 and
beyond. We broke ground on the expansion in November 2022 and expect construction to be substantially completed in the first half of 2026. We negotiated
various tax incentives with the Commonwealth of Virginia and the City of Richmond including the allowance to use market-based income apportionment for
income  taxes  and  partial  reimbursements  of  property  tax  assessments  related  to  the  value  of  the  campus  expansion.  These  incentives  are  conditional  upon
achieving  job  creation  and  capital  expenditure  targets  from  2022  to  2029.  Failure  to  meet  these  targets  could  result  in  a  reduction  of  the  value  of  the  tax
incentives and repayment of previous tax reductions. The value of the incentives is dependent on our taxable income.

We expect the total cost of construction, net of the estimated value of the tax incentives from 2023 to 2032, to be in the range of $450 – $600 million. We
have  engaged  a  project  manager,  architects  and  a  general  contractor  on  terms  that  generally  require  payments  as  services  are  provided  or  construction  is
performed. As of December 31, 2023, we have paid $128 million and we have committed to spend an additional $437 million as further work is performed
under these contracts. We plan to amend these contracts to include additional commitments as construction progresses. Total cash expenditures for 2024 are
expected to be approximately $385 million. We expect to fund the expansion with cash on hand.

In January 2024, the Company entered into a conditional purchase and sale agreement for an office building in Arlington, Virginia. The Company closed
on the transaction in February 2024 along with an agreement to purchase the land underlying the building. These transactions totaled $340.0 million, inclusive
of property taxes, titling insurance and other transaction costs and were paid with cash on hand.

Our future capital requirements will depend on many factors, including, among others, our operating results, expansion and integration efforts and our
level of acquisition activity or other strategic transactions. To date, we have grown in part by acquiring other companies, and we expect to continue to make
acquisitions.

Cash and cash equivalents increased to $5.2 billion as of December 31, 2023, compared to cash and cash equivalents of $5.0 billion as of December 31,
2022. The increase in cash and cash equivalents for the year ended December 31, 2023 was primarily due to cash flow from operations of $489.5 million,
partially offset by spending on capital assets

Net  cash  provided  by  operating  activities  for  the  year  ended  December  31,  2023  was  $489.5  million  compared  to  $478.7  million  for  the  year  ended

December 31, 2022. The $10.8 million increase was primarily due to higher net income, excluding certain non-cash expenses.

Net  cash  used  in  investing  activities  for  the  year  ended  December  31,  2023  was  $238.6  million  compared  to  $69.1  million  for  the  year  ended
December 31, 2022. The change was primarily due to an increase in cash paid for acquisitions of $93.3 million, increased spending for the Richmond campus
of $82.3 million, and a decrease in proceeds from sale of property and equipment and other assets of $30.1 million.

Net cash used in financing activities for the year ended December 31, 2023 was $3.7 million compared to net cash provided by financing activities of
$734.0  million  for  the  year  ended  December  31,  2022. The  change  was  primarily  due  to  $745.7  million  of  net  proceeds  from  our  September  2022  equity
offering.

Critical Accounting Estimates

The preparation of financial statements and related disclosures in conformity with GAAP requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and revenues and
expenses during the period reported. The following accounting policies involve a “critical accounting estimate” because they are particularly dependent on
estimates and assumptions made by management about matters that are highly uncertain at the time the accounting estimates are made. In addition, while we
have  used  our  best  estimates  based  on  facts  and  circumstances  available  to  us  at  the  time,  different  acceptable  assumptions  would  yield  different  results.
Changes  in  the  accounting  estimates  are  reasonably  likely  to  occur  from  period  to  period,  which  may  have  a  material  impact  on  the  presentation  of  our
financial condition and results of operations. We review these estimates and assumptions periodically and reflect the effects of revisions in the period that they
are determined to be necessary. We consider policies relating to the following matters to be critical accounting policies:

•
•
•
•

Intangible assets and goodwill;
Income taxes;
Revenue recognition; and
Business combinations.

48

With  respect  to  our  accounting  policy  for  intangible  assets  and  goodwill,  we  further  supplement  in  Note  2  of  the  Notes  to  the  Consolidated  Financial

Statements included in Part IV of this Report with the following:

We assess the impairment of identifiable intangibles and goodwill whenever events or changes in circumstances indicate that the carrying value may not
be recoverable. Judgments made by management relate to the expected useful lives of intangible assets and our ability to recover the carrying value of such
assets. The accuracy of these judgments may be adversely affected by several factors, including the factors listed below:

•
•
•
•

Significant underperformance relative to historical or projected future operating results;
Significant changes in the manner of our use of the acquired assets or the strategy for our overall business;
Significant negative industry or economic trends; or
Significant decline in our market capitalization relative to net book value for a sustained period.

When we determine that the carrying value of intangible assets may not be recovered based upon the existence of one or more of the above indicators, we

test for impairment.

Goodwill and identifiable intangible assets that are not subject to amortization are tested annually for impairment by each reporting unit on October 1 of

each year and are also tested for impairment more frequently based upon the existence of one or more of the above indicators.

Goodwill represents the future economic benefits arising from a business combination and is calculated as the excess of purchase consideration paid in a
business combination over the fair value of assets of the net identifiable assets acquired. Goodwill is not amortized, but instead tested for impairment at least
annually by each reporting unit, or more frequently if an event or other circumstance indicates that the fair value of a reporting unit may be below its carrying
amount. We may first assess qualitative factors to evaluate whether it is more likely than not that the fair value of a reporting unit is less than its carrying
amount, or elect to bypass the qualitative assessment. If it is determined that it is more likely than not that the fair value of a reporting unit is less than its
carrying value, or we elect to bypass the qualitative assessment, we then perform a quantitative assessment by determining the fair value of each reporting
unit. We estimate the fair value of each reporting unit based on a projected discounted cash flow model that includes significant assumptions and estimates
including our discount rate, growth rate and future financial performance. Assumptions about the discount rate are based on a weighted average cost of capital
for comparable companies and determined by management to be commensurate with the risk in our current business model. Assumptions about the growth
rate and future financial performance of a reporting unit are based on our forecasts, business plans, economic projections and anticipated future cash flows.
These  assumptions  are  subject  to  change  from  period-to-period  and  could  be  adversely  impacted  by  the  uncertainty  surrounding  global  market  conditions,
commercial  real  estate  conditions  and  the  competitive  environment  in  which  we  operate.  Changes  in  these  or  other  factors  could  negatively  affect  our
reporting units' fair value and potentially result in impairment charges. Such impairment charges could have an adverse effect on our results of operations. The
fair value of each reporting unit is compared to the carrying amount of the reporting unit. If the carrying value of the reporting unit exceeds the fair value, then
an impairment loss is recognized for the difference.

As of October 1, 2023, we assessed the relevant qualitative factors for our North America reporting unit and concluded that it was not more likely than
not  that  the  fair  value  of  this  reporting  unit  was  less  than  its  respective  carrying  amounts.  We  elected  to  bypass  performing  the  qualitative  screen  and
performed the first step quantitative analysis of the goodwill impairment test for our International reporting unit in 2023, which indicated that the fair value of
this unit exceeded its carrying value. There have been no events or changes in circumstances as a result of our qualitative impairment analysis on October 1,
2023, that would indicate that the carrying value of each reporting unit may not be recoverable.

For  an  in-depth  discussion  of  each  of  our  significant  accounting  policies,  including  our  critical  accounting  policies  and  further  information  regarding

estimates and assumptions involved in their application, see Note 2 of the Notes to the Consolidated Financial Statements included in Part IV of this Report.

Recent Accounting Pronouncements

See Note 2 of the Notes to the Consolidated Financial Statements included in this Report for further discussion of recent accounting pronouncements,

including the expected dates of adoption.

Item 7A.    Quantitative and Qualitative Disclosures About Market Risk

We provide information, analytics and online marketplace services to commercial real estate and related business communities within the regions where

we operate which primarily include, North America, Europe, Asia-Pacific and Latin

49

America. The functional currency for a majority of our operations is the local currency, with the exception of certain international locations for which the
functional currency is the British Pound.

Fluctuations in the British Pound, Canadian dollar and Euro may have an impact on our business, results of operations and financial position. For both the
years ended December 31, 2023 and December 31, 2022, revenues denominated in foreign currencies were approximately 4%, of total revenue. For the years
ended December 31, 2023 and December 31, 2022, our revenues would have decreased by approximately $10 million and $8 million, respectively, if the U.S.
dollar  exchange  rate  used  strengthened  by  10%.  For  the  years  ended  December  31,  2023  and  December  31,  2022,  our  revenues  would  have  increased  by
approximately  4%  and  $8  million,  respectively,  if  the  U.S.  dollar  exchange  rate  used  weakened  by  10%.  Fluctuations  in  the  exchange  rates  of  revenues
denominated  in  any  other  foreign  currencies  would  have  had  an  immaterial  impact  on  our  consolidated  results.  In  addition,  we  have  assets  and  liabilities
denominated  in  foreign  currencies.  We  currently  do  not  use  financial  instruments  to  hedge  our  exposure  to  exchange  rate  fluctuations  with  respect  to  our
foreign subsidiaries. We may seek to enter into hedging transactions in the future to reduce our exposure to exchange rate fluctuations, but we may be unable
to enter into hedging transactions successfully, on acceptable terms or at all. As of December 31, 2023, accumulated other comprehensive loss included a loss
from foreign currency translation adjustments of approximately $17.6 million.

We  do  not  believe  we  have  material  exposure  to  market  risks  associated  with  changes  in  interest  rates  related  to  cash  equivalent  securities  held  as  of
December  31,  2023. As  of  December  31,  2023,  we  had  of  cash  and  cash  equivalents.  If  there  is  an  increase  or  decrease  in  interest  rates,  there  will  be  a
corresponding increase or decrease in the amount of interest earned on our cash and cash equivalents. We currently diversify our cash and cash equivalents
holdings amongst multiple financial institutions and AAA-rated Government and Treasury Money Market Funds.

We are subject to interest rate market risk in connection with our revolving credit facility. On July 1, 2020, we entered into the 2020 Credit Agreement,
which  provides  for  variable  rate  borrowings  of  up  to  $750  million.  On  July  1,  2020,  we  issued  $1.0  billion  aggregate  principal  amount  of  Senior  Notes.
Changes in interest rates would not have a material impact to our current interest and debt financing expense, as all of our borrowings except for our credit
facility  are  fixed  rate,  and  no  amounts  were  outstanding  under  our  credit  facility  as  of  December  31,  2023.  See  Note  11  of  the  Notes  to  the  Consolidated
Financial Statements included in this Report for additional information regarding our 2020 Credit Agreement.

We had approximately $2.7 billion of goodwill and intangible assets as of December 31, 2023. As of December 31, 2023, we believe our intangible assets
will be recoverable; however, changes in the economy, the business in which we operate and our own relative performance could change the assumptions used
to evaluate intangible asset recoverability. In the event that we determine that an asset has been impaired, we would recognize an impairment charge equal to
the amount by which the carrying amount of the assets exceeds the fair value of the asset. We continue to monitor these assumptions and their effect on the
estimated recoverability of our intangible assets.

50

Item 8.    Financial Statements and Supplementary Data

Financial  Statements  meeting  the  requirements  of  Regulation  S-X,  including  reports  of  independent  registered  public  accounting  firm  Ernst  &  Young
LLP, are set forth beginning at page F-1. Supplementary data is set forth in “Management’s Discussion and Analysis of Financial Condition and Results of
Operations” under the caption “Consolidated Results of Operations.”

Item 9.    Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A.    Controls and Procedures

We  maintain  disclosure  controls  and  procedures  that  are  designed  to  ensure  that  information  required  to  be  disclosed  in  our  reports  filed  or  submitted
under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules
and  forms,  and  that  such  information  is  accumulated  and  communicated  to  our  management,  including  our  Chief  Executive  Officer  and  Chief  Financial
Officer,  as  appropriate,  to  allow  for  timely  decisions  regarding  required  disclosure.  In  designing  and  evaluating  the  disclosure  controls  and  procedures,
management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the
desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As  of  December  31,  2023,  we  carried  out  an  evaluation,  under  the  supervision  and  with  the  participation  of  our  management,  including  our  Chief
Executive Officer and our Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures as of the end of
the fiscal year. Based on the foregoing, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were
effective as of December 31, 2023 and were operating at a reasonable assurance level.

We  continue  to  implement  a  financial  system  that  is  designed  to  improve  the  efficiency  and  effectiveness  of  our  operational  and  financial  accounting
processes.  This  implementation  is  expected  to  be  a  multi-year  project.  Consistent  with  any  process  change  that  we  implement,  the  design  of  the  internal
controls has and will continue to be evaluated for effectiveness as part of our overall assessment of the effectiveness of our disclosure controls and procedures.
We expect that the implementation of this system will improve our internal control over financial reporting.

Other than the implementation of a new financial system noted above, there have been no changes in our internal control over financial reporting during

our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Management’s Report on Internal Control over Financial Reporting

Management of CoStar Group is responsible for establishing and maintaining adequate internal control over financial reporting and for the assessment of
the  effectiveness  of  internal  control  over  financial  reporting.  As  defined  by  the  SEC,  internal  control  over  financial  reporting  is  a  process  designed  by,  or
supervised  by,  the  Company’s  principal  executive  and  principal  financial  officers,  to  provide  reasonable  assurance  regarding  the  reliability  of  financial
reporting and the preparation of financial statements in accordance with GAAP.

The Company’s internal control over financial reporting is supported by written policies and procedures, which (1) pertain to the maintenance of records
that,  in  reasonable  detail,  accurately  and  fairly  reflect  the  transactions  and  dispositions  of  the  Company’s  assets;  (2)  provide  reasonable  assurance  that
transactions  are  recorded  as  necessary  to  permit  preparation  of  financial  statements  in  accordance  with  GAAP,  and  that  receipts  and  expenditures  of  the
Company are being made only in accordance with authorizations of the Company’s management and directors; and (3) provide reasonable assurance regarding
prevention  or  timely  detection  of  unauthorized  acquisition,  use  or  disposition  of  the  Company’s  assets  that  could  have  a  material  effect  on  the  financial
statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  Projections  of  any  evaluation  of
effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.

In  connection  with  the  preparation  of  the  Company's  annual  financial  statements,  management  of  the  Company  has  undertaken  an  assessment  of  the
effectiveness of the Company’s internal control over financial reporting as of December 31, 2023 based on criteria established in Internal Control – Integrated
Framework (2013 framework) issued by the Committee of

51

Sponsoring Organizations of the Treadway Commission. Management's assessment included an evaluation of the design of the Company's internal control
over financial reporting and testing of the operational effectiveness of the Company's internal control over financial reporting.

Based on this assessment, management has concluded that the Company's internal control over financial reporting was effective as of December 31, 2023.

Ernst & Young LLP, the independent registered public accounting firm that audited the Company's financial statements included in this report, has issued

an attestation report on the effectiveness of internal control over financial reporting, a copy of which is included in this Report.

In  December  2023,  we  completed  the  OnTheMarket  Acquisition.  As  permitted  by  the  SEC,  we  have  elected  to  exclude  the  internal  controls  of  this
acquisition, which has not been integrated into our existing processes and controls, from our assessment of the effectiveness of internal control over financial
reporting as of December 31, 2023. The excluded financial position of OnTheMarket represented less than 1% of our total assets as of December 31, 2023,
and less than 1% of our revenues and total operating costs for the year then ended. We will include the internal controls of OnTheMarket in our assessment of
the effectiveness of our internal control over financial reporting as of December 31, 2024.

Item 9B.    Other Information.

None.

Item 9C.    Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

Not applicable.

PART III

Item 10.    Directors, Executive Officers and Corporate Governance

CoStar Group has adopted a Code of Conduct for its directors. In addition, CoStar Group has adopted a separate Code of Business Conduct and Ethics for
its  officers  and  employees,  including  its  principal  executive,  financial  and  accounting  officers,  or  persons  performing  similar  functions.  Copies  of  each  of
these codes may be found in the “Investors” section of the Company’s website at https://investors.costargroup.com/leadership. We intend to disclose future
amendments to certain provisions of our Codes, or waivers of such provisions granted to executive officers and directors, as required by the SEC rules on the
Company's website within four business days following the date of such amendment or waiver.

The remaining information required by this Item is incorporated by reference to our Proxy Statement for our 2024 annual meeting of stockholders under
the  captions  “Director  Nominees,”  “Executive  Officers,”  Corporate  Governance  Highlights,”  “Board  Committees,”  “Insider  trading  arrangements  and
policies,” and, if applicable, “Delinquent Section 16(a) Reports.”

Item 11.    Executive Compensation

The information required by this Item is incorporated by reference to our Proxy Statement for our 2024 annual meeting of stockholders under the captions
“Compensation  Discussion  and  Analysis,”  “Director  Compensation,”  “Compensation  Committee  Interlocks  and  Insider  Participation,”  and  “Compensation
Committee Report.”

Item 12.    Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by this Item is incorporated by reference to our Proxy Statement for our 2024 annual meeting of stockholders under the captions

“Equity Compensation Plan Information” and “Stock Ownership Information.”

Item 13.    Certain Relationships and Related Transactions, and Director Independence

The information required by this Item is incorporated by reference to our Proxy Statement for our 2024 annual meeting of stockholders under the captions

“Certain Relationships and Related Transactions” and “Corporate Governance Matters.”

Item 14.    Principal Accountant Fees and Services

The information required by this Item is incorporated by reference to our Proxy Statement for our 2024 annual meeting of stockholders under the caption

“Ratification of the Appointment of Independent Registered Public Accounting Firm.”

52

Item 15.    Exhibits and Financial Statement Schedules

PART IV

(a)(1) The following financial statements are filed as a part of this Report: CoStar Group, Inc. Consolidated Financial Statements.

(a)(2) Financial statement schedules: Additional financial statement schedules are omitted because they are not applicable or not required or because the

required information is incorporated herein by reference or included in the financial statements or related notes included elsewhere in this report.

(a)(3) The documents required to be filed as exhibits to this Report under Item 601 of Regulation S-K are listed as follows:

Exhibits

Exhibit No.

Description

3.1

3.2

4.1

4.2

4.3

*10.1

*10.2

*10.3

*10.4

*10.5

*10.6

*10.7

*10.8

*10.9

*10.10

Fourth  Amended  and  Restated  Certificate  of  Incorporation  of  CoStar  Group,  Inc.  (Incorporated  by  reference  to  Exhibit  3.1  to  t
Registrant's Current Report on Form 8-K filed with the SEC on June 7, 2021).

Fourth Amended and Restated By-Laws of CoStar Group, Inc. (Incorporated by reference to Exhibit 3.1 to the Registrant’s Current Rep
on Form 8-K filed with the SEC on May 9, 2022).
Specimen Common Stock Certificate (Incorporated by reference to Exhibit 4.1 to the Registration Statement on Form S-4 of the Registra
(Reg. No. 333-174214) filed with the SEC on June 3, 2011).
Description  of  the  Registrant's  Securities  Registered  Pursuant  to  Section  12  of  the  Securities  Exchange  Act  of  1934  (Incorporated 
reference to Exhibit 4.2 to the Registrant's Annual Report on Form 10-K filed with the SEC on February 23, 2022).
Indenture,  dated  as  of  July  1,  2020,  by  and  among  CoStar  Group,  Inc.,  as  issuer,  the  guarantors  named  therein  and  Wilmington  Tru
National  Association,  as  trustee,  relating  to  the  2.800%  Senior  Notes  due  2030,  including  the  form  of  2.800%  Senior  Notes  due  20
(Incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on July 1, 2020).
CoStar Group, Inc. 2016 Stock Incentive Plan (Incorporated by reference to Exhibit 4.4 to the Registration Statement on Form S-8 of t
Registrant (Reg. No. 333-212278) filed with the SEC on June 28, 2016).
First  Amendment  to  the  CoStar  Group,  Inc.  2016  Stock  Incentive  Plan  (Incorporated  by  reference  to  Exhibit  10.1  to  the  Registran
Quarterly Report on Form 10-Q filed April 25, 2018).
CoStar Group, Inc. 2007 Stock Incentive Plan, as amended (Incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report 
Form 8-K filed June 8, 2012).
CoStar  Group,  Inc.  2007  Stock  Incentive  Plan  French  Sub-Plan  (Incorporated  by  reference  to  Exhibit  10.3  to  the  Registrant’s  Report 
Form 10-K filed February 29, 2008).
Form of CoStar Group, Inc. 2016 Plan Restricted Stock Grant Agreement between the Registrant and certain of its officers, directors a
employees (Incorporated by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q filed July 28, 2016).
Form  of  CoStar  Group,  Inc.  2016  Plan  Restricted  Stock  Grant  Agreement  for  Service  Awards  between  the  Registrant  and  certain  of 
officers and employees (Incorporated by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q filed July 28, 2016).
Form  of  CoStar  Group,  Inc.  2016  Plan  Restricted  Stock  Unit  Grant  Agreement  between  the  Registrant  and  certain  of  its  officers  a
employees (Incorporated by reference to Exhibit 10.5 to the Registrant’s Quarterly Report on Form 10-Q filed July 28, 2016).
Form  of  CoStar  Group,  Inc.  2016  Plan  Incentive  Stock  Option  Grant  Agreement  between  the  Registrant  and  certain  of  its  officers  a
employees (Incorporated by reference to Exhibit 10.6 to the Registrant’s Quarterly Report on Form 10-Q filed July 28, 2016).
Form  of  CoStar  Group,  Inc.  2016  Plan  Incentive  Stock  Option  Grant  Agreement  between  the  Registrant  and  Andrew  C.  Floran
(Incorporated by reference to Exhibit 10.7 to the Registrant’s Quarterly Report on Form 10-Q filed July 28, 2016).
Form  of  CoStar  Group,  Inc.  2016  Plan  Nonqualified  Stock  Option  Grant  Agreement  between  the  Registrant  and  certain  of  its  office
directors and employees (Incorporated by reference to Exhibit 10.8 to the Registrant’s Quarterly Report on Form 10-Q filed July 28, 2016

53

 
 
Exhibit No.
*10.11

*10.12

*10.13

*10.14

*10.15

*10.16

*10.17

*10.18

*10.19

*10.20

*10.21

*10.22
*10.23

*10.24

*10.25

*10.26

10.27

10.28

10.29

10.30

21.1
23.1

Description
Form  of  CoStar  Group,  Inc.  2016  Plan  Nonqualified  Stock  Option  Grant  Agreement  between  the  Registrant  and  Andrew  C.  Floran
(Incorporated by reference to Exhibit 10.9 to the Registrant’s Quarterly Report on Form 10-Q filed July 28, 2016).
Form  of  2007  Plan  Restricted  Stock  Grant  Agreement  between  the  Registrant  and  certain  of  its  officers,  directors  and  employe
(Incorporated by reference to Exhibit 99.1 to the Registrant’s Current Report on Form 8-K filed June 22, 2007).
Form  of  2007  Plan  Restricted  Stock  Unit  Agreement  between  the  Registrant  and  certain  of  its  officers  and  employees  (Incorporated 
reference to Exhibit 10.8 to the Registrant's Annual Report on Form 10-K filed February 20, 2014).
Form of 2007 Plan Incentive Stock Option Grant Agreement between the Registrant and certain of its officers and employees (Incorporat
by reference to Exhibit 10.8 to the Registrant’s Annual Report on Form 10-K filed February 24, 2009).
Form of 2007 Plan Incentive Stock Option Grant Agreement between the Registrant and Andrew C. Florance (Incorporated by reference
Exhibit 10.9 to the Registrant’s Annual Report on Form 10-K filed February 24, 2009).
Form  of  2007  Plan  Nonqualified  Stock  Option  Grant  Agreement  between  the  Registrant  and  certain  of  its  officers  and  employe
(Incorporated by reference to Exhibit 10.10 to the Registrant’s Annual Report on Form 10-K filed February 24, 2009).
Form  of  2007  Plan  Nonqualified  Stock  Option  Grant  Agreement  between  the  Registrant  and  certain  of  its  directors  (Incorporated 
reference to Exhibit 10.11 to the Registrant’s Annual Report on Form 10-K filed February 24, 2009).
Form of 2007 Plan Nonqualified Stock Option Grant Agreement between the Registrant and Andrew C. Florance (Incorporated by referen
to Exhibit 10.12 to the Registrant’s Annual Report on Form 10-K filed February 24, 2009).
Form  of  2007  Plan  French  Sub-Plan  Restricted  Stock  Agreement  between  the  Registrant  and  certain  of  its  employees  (Incorporated 
reference to Exhibit 10.10 to the Registrant’s Annual Report on Form 10-K filed February 29, 2008).
CoStar Group, Inc. 2016 Cash Incentive Plan (Incorporated by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10
filed July 28, 2016).
Second  Amended  and  Restated  Employee  Stock  Purchase  Plan  (Incorporated  by  reference  to  Exhibit  4.4  to  the  Registrant’s  Registrati
Statement on Form S-8 (No. 333-258220) filed with the SEC on July 28, 2021).
Canadian Addendum to CoStar Group ESPP (filed herewith).
CoStar  Group,  Inc.  Management  Stock  Purchase  Plan  (Incorporated  by  reference  to  Exhibit  10.21  to  the  Registrant’s  Annual  Report 
Form 10-K filed February 23, 2018).
Summary of Non-Employee Director Compensation (Incorporated by reference to Exhibit 10.1 to the Registrant's Quarterly Report on Fo
10-Q filed on October 24, 2013).
Employment  Agreement  for  Andrew  C.  Florance  (Incorporated  by  reference  to  Exhibit  10.2  to  Amendment  No.  1  to  the  Registran
Registration Statement on Form S-1 (Reg. No. 333-47953) filed with the SEC on April 27, 1998).
First Amendment to Andrew C. Florance Employment Agreement, effective January 1, 2009 (Incorporated by reference to Exhibit 10.16
the Registrant’s Annual Report on Form 10-K filed February 24, 2009).
Form of Indemnification Agreement between the Registrant and each of its officers and directors (Incorporated by reference to Exhibit 10
to the Registrant’s Quarterly Report on Form 10-Q filed on May 7, 2004).
Deed of Office Lease by and between GLL L-Street 1331, LLC and CoStar Realty Information, Inc., dated February 18, 2011, and ma
effective as of June 1, 2010 (Incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on form 10-Q filed on April 2
2011).
Second Amended and Restated Credit Agreement, dated as of July 1, 2020, by and among CoStar Group, Inc., as borrower, CoStar Rea
Information, Inc., as co-borrower, the lenders party thereto and Bank of America, N.A., as administrative agent (Incorporated by referen
to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on July 1, 2020)
First  Amendment  to  the  Second  Amended  and  Restated  Credit  Agreement,  dated  as  of  May  8,  2023,  among  CoStar  Group,  Inc., 
borrower,  CoStar  Realty  Information,  Inc.,  as  co-borrower,  the  lenders  from  time  to  time  party  thereto  and  Bank  of  America,  N.A., 
administrative agent (Incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q filed July 26, 2023)
Subsidiaries of the Registrant (filed herewith).
Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm (filed herewith).

54

Exhibit No.
31.1
31.2
32.1

32.2

97
101.INS

101.SCH
101.CAL
101.DEF
101.LAB
101.PRE
104

Description

Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
Certification of Principal Executive Officer pursuant to 18 U.S.C. Sec. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley A
of 2002 (furnished herewith).
Certification of Principal Financial Officer pursuant to 18 U.S.C. Sec. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley A
of 2002 (furnished herewith).
CoStar Group, Inc. Clawback Policy, effective September 13, 2023 (filed herewith).
The following financial statements from the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, formatted
Inline  XBRL:  (i)  Consolidated  Statements  of  Operations;  (ii)  Consolidated  Statements  of  Comprehensive  Income;  (iii)  Consolidat
Balance Sheets; (iv) Consolidated Statements of Cash Flows; and (v) Notes to Consolidated Financial Statements, tagged as blocks of te
and including detailed tags.
Inline XBRL Taxonomy Extension Schema Document.
Inline XBRL Taxonomy Extension Calculation Linkbase Document.
Inline XBRL Taxonomy Extension Definition Linkbase Document.
Inline XBRL Taxonomy Extension Label Linkbase Document.
Inline XBRL Taxonomy Extension Presentation Linkbase Document.
The  cover  page  from  the  Registrant's  Annual  Report  on  Form  10-K  for  the  year  ended  December  31,  2023,  formatted  in  Inline  XBR
(included as Exhibit 101).

* Management Contract or Compensatory Plan or Arrangement.

55

Item 16.    Form 10-K Summary

None.

56

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its

behalf by the undersigned, thereunto duly authorized.

SIGNATURES

February 21, 2024

COSTAR GROUP, INC.

By:

/s/ Andrew C. Florance
Andrew C. Florance
President and Chief Executive Officer

KNOW ALL PERSONS BY THESE PRESENTS, that each individual whose signature appears below constitutes and appoints Andrew C. Florance and
Scott T. Wheeler, and each of them individually, as their true and lawful attorneys-in-fact and agents, with full power of substitution, for him and in his name,
place and stead, in any and all capacities, to sign any and all amendments to this report, and to file the same, with all exhibits thereto and to all documents in
connection  therewith,  with  the  Securities  and  Exchange  Commission,  granting  unto  said  attorneys-in-fact  and  agents,  and  each  of  them,  full  power  and
authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he
might or could do in person, herein by ratifying and confirming all that said attorneys-in-fact and agents or any of them, or his or their substitute or substitutes,
may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1934, as amended, this report has been signed by the following persons on behalf of the registrant

and in the capacities and on the dates indicated.

57

 
 
 
 
 
 
 
/s/ Michael R. Klein
Michael R. Klein

/s/ Andrew C. Florance
Andrew C. Florance

/s/ Scott T. Wheeler
Scott T. Wheeler

/s/ Angelique G. Brunner
Angelique G. Brunner

/s/ Michael J. Glosserman
Michael J. Glosserman

/s/ John W. Hill
John W. Hill

/s/ Laura Cox Kaplan
Laura Cox Kaplan

/s/ Christopher J. Nassetta
Christopher J. Nassetta

/s/ Louise S. Sams
Louise S. Sams

/s/ Robert W. Musslewhite
Robert W. Musslewhite

Signature

Capacity

Date

Chairman of the Board

February 21, 2024

Chief Executive Officer and
President and a Director
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial and Accounting Officer)

Director

Director

Director

Director

Director

Director

Director

58

February 21, 2024

February 21, 2024

February 21, 2024

February 21, 2024

February 21, 2024

February 21, 2024

February 21, 2024

February 21, 2024

February 21, 2024

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Reports of Independent Registered Public Accounting Firm (PCAOB ID Number 42)
Consolidated Statements of Operations
Consolidated Statements of Comprehensive Income
Consolidated Balance Sheets 
Consolidated Statements of Changes in Stockholders’ Equity
Consolidated Statements of Cash Flows
Notes to Consolidated Financial Statements

F-1

F
F
F
F
F
F-
F-

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of CoStar Group, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of CoStar Group, Inc. (the Company) as of December 31, 2023 and 2022, the related
consolidated statements of operations, comprehensive income, changes in stockholders’ equity, and cash flows for each of the three years in the period ended
December  31,  2023,  and  the  related  notes  (collectively  referred  to  as  the  “consolidated  financial  statements”).  In  our  opinion,  the  consolidated  financial
statements present fairly, in all material respects, the financial position of the Company at December 31, 2023 and 2022, and the results of its operations and
its cash flows for each of the three years in the period ended December 31, 2023, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's
internal  control  over  financial  reporting  as  of  December  31,  2023,  based  on  criteria  established  in  Internal  Control-Integrated  Framework  issued  by  the
Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 21, 2024 expressed an unqualified
opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial
statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company
in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures
to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks.
Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included
evaluating  the  accounting  principles  used  and  significant  estimates  made  by  management,  as  well  as  evaluating  the  overall  presentation  of  the  financial
statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The  critical  audit  matter  communicated  below  is  a  matter  arising  from  the  current  period  audit  of  the  financial  statements  that  was  communicated  or
required  to  be  communicated  to  the  audit  committee  and  that:  (1)  relates  to  accounts  or  disclosures  that  are  material  to  the  financial  statements  and  (2)
involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on
the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the
critical audit matter or on the accounts or disclosures to which it relates.

F-2

Description of the
Matter

Highly Automated Revenue Systems related to Subscription Revenue
As  described  in  Note  2  to  the  consolidated  financial  statements,  the  Company  derives  revenues  primarily  by  (i)
providing  access  to  its  proprietary  database  of  commercial  real  estate  information  and  (ii)  providing  online
marketplaces  for  professional  property  management  companies,  property  owners,  real  estate  agents  and  brokers  and
landlords, in each case, typically through a fixed fee for its subscription-based services. Revenues from subscription-
based contracts are approximately 95% of total revenues for the current year and are recognized on a straight-line basis
over the term of the agreement. The Company’s revenue recognition process involves several applications responsible
for the initiation, processing, and recording of transactions. These applications interface with the Company’s enterprise
resource planning system through automated and manual journal entries to accurately reflect revenue.

The process to calculate, aggregate, and record revenue relies on multiple internally developed and external software
programs and systems and involves interfacing significant volumes of data across the systems. Auditing the Company's
accounting  for  revenue  from  subscription-based  contracts  was  challenging  and  complex  due  to  the  high  volume  of
individually-low-monetary-value  transactions,  dependency  on  the  effective  design  and  operation  of  multiple
applications, some of which are specifically designed for the Company's business, and the use of multiple data sources
in the revenue recognition process. Given the complexity of the information technology (IT) environment, the required
involvement  of  professionals  with  expertise  in  IT  to  identify,  test,  and  evaluate  the  revenue  data  flows,  systems,  and
automated  controls,  we  considered  the  audit  of  the  Company’s  subscription  revenue-generating  transactions  to  be  a
critical audit matter.

How We
Addressed the
Matter in Our
Audit

We  performed  procedures  related  to  the  Company’s  internal  controls  that  included,  among  others,  obtaining  an
understanding,  evaluating  the  design,  and  testing  the  operating  effectiveness  of  internal  controls  over  the  Company’s
accounting  for  subscription  revenue.  We  tested  the  controls  over  the  initiation  and  billing  of  new  and  recurring
subscriptions, the provisioning of customers, and the Company’s cash to billings reconciliation process. We tested the
controls related to the key application interfaces between the provisioning, billing, and accounting systems and tested
IT general controls related to access to the relevant applications and data, and changes made to the relevant systems,
configurations and interfaces.

We performed substantive audit procedures that included, among others, testing the Company’s accounting for revenue
from  contracts  with  customers,  by  testing,  on  a  sample  basis,  the  completeness  and  accuracy  of  the  underlying  data
within  the  Company’s  billing  system.  We  performed  data  analytics  by  extracting  data  from  the  general  ledger  to
evaluate the completeness and accuracy of recorded revenue and deferred revenue amounts, tracing a sample of sales
transactions to source data, and testing a sample of cash to billings reconciliations.

/s/ Ernst & Young LLP

We have served as the Company’s auditor since 1994.

Tysons, Virginia

February 21, 2024

F-3

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of CoStar Group, Inc.

Opinion on Internal Control over Financial Reporting

We have audited CoStar Group, Inc.’s internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control
—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our
opinion, CoStar Group, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023,
based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated
balance sheets of CoStar Group, Inc. as of December 31, 2023 and 2022, the related consolidated statements of operations, comprehensive income, changes in
stockholders' equity and cash flows for each of the three years in the period ended December 31, 2023 and the related notes of CoStar Group, Inc. and our
report dated February 21, 2024 expressed an unqualified opinion thereon.

As indicated in the accompanying Management’s Report on Internal Control over Financial Reporting, management’s assessment of and conclusion on
the  effectiveness  of  internal  control  over  financial  reporting  did  not  include  the  internal  controls  of  OnTheMarket  Plc.,  which  is  included  in  the  2023
consolidated financial statements of the Company and constituted less than 1% and 1% of total and net assets, respectively, as of December 31, 2023, and less
than  1%  and  less  than  1%  of  revenues  and  net  income,  respectively,  for  the  year  then  ended.  Our  audit  of  internal  control  over  financial  reporting  of  the
Company also did not include an evaluation of the internal control over financial reporting of OnTheMarket Plc.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of
internal control over financial reporting included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility
is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the
PCAOB  and  are  required  to  be  independent  with  respect  to  the  Company  in  accordance  with  the  U.S.  federal  securities  laws  and  the  applicable  rules  and
regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable

assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and
evaluating  the  design  and  operating  effectiveness  of  internal  control  based  on  the  assessed  risk,  and  performing  such  other  procedures  as  we  considered
necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting
and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control
over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit
preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being
made  only  in  accordance  with  authorizations  of  management  and  directors  of  the  company;  and  (3)  provide  reasonable  assurance  regarding  prevention  or
timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation
of  effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may  become  inadequate  because  of  changes  in  conditions,  or  that  the  degree  of
compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP

F-4

Tysons, Virginia

February 21, 2024

F-5

COSTAR GROUP, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(in millions, except per share data)

Revenues

Cost of revenues

Gross profit

Operating expenses:

Selling and marketing (excluding customer base amortization)

Software development

General and administrative

Customer base amortization

Income from operations

Interest income (expense), net

Other income, net

Income before income taxes

Income tax expense

Net income

Net income per share — basic

Net income per share — diluted

Weighted-average outstanding shares — basic

Weighted-average outstanding shares — diluted

See accompanying notes.

F-6

Year Ended December 31,

2023

2022

2021

$

2,455.0  $

2,182.4  $

491.5 

1,963.5 

414.0 

1,768.4 

989.9 

267.6 

381.5 

42.2 

684.2 

220.9 

338.7 

73.6 

1,681.2 

1,317.4 

282.3 

213.6 

5.4 

501.3 

451.0 

32.1 

3.4 

486.5 

126.6 

374.7  $

117.0 

369.5  $

0.92  $

0.93  $

0.92  $

0.93  $

$

$

$

405.3 

406.9 

396.3 

397.8 

1,944

357

1,586

622

201

256

74

1,154

432

(31.

3

404

111

292

0.7

0.7

392

394

 
COSTAR GROUP, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in millions)

Net income

Other comprehensive income (loss), net of tax

Foreign currency translation adjustment

Total other comprehensive income (loss)

Total comprehensive income

Year Ended December 31,

2023

2022

2021

374.7  $

369.5  $

11.5 

11.5 

(23.3)

(23.3)

386.2  $

346.2  $

292

(4.

(4.

287

$

$

See accompanying notes.

F-7

COSTAR GROUP, INC.
CONSOLIDATED BALANCE SHEETS
(in millions, except per share data)

ASSETS

Current assets:

Cash and cash equivalents

Accounts receivable

Less: Allowance for credit losses

Accounts receivable, net

Prepaid expenses and other current assets

Total current assets

Deferred income taxes, net

Property and equipment, net

Lease right-of-use assets

Goodwill

Intangible assets, net

Deferred commission costs, net

Deposits and other assets

Income tax receivable

Total assets

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current liabilities:

Accounts payable
Accrued wages and commissions
Accrued expenses
Income taxes payable
Lease liabilities
Deferred revenue
Total current liabilities

Long-term debt, net
Deferred income taxes, net
Income taxes payable
Lease and other long-term liabilities

Total liabilities

Stockholders’ equity:

Preferred stock, $0.01 par value; 2 million shares authorized; zero outstanding
Common stock, $0.01 par value; 1.2 billion shares authorized; 408.1 million and 406.7 million issued and
outstanding as of December 31, 2023 and 2022, respectively
Additional paid-in capital
Accumulated other comprehensive loss
Retained earnings

Total stockholders’ equity

Total liabilities and stockholders’ equity

 See accompanying notes.

F-8

December 31,

2023

2022

$

5,215.9  $

4,968.

213.2 

(23.2)

190.0 

70.2 

5,476.1 

4.3 

472.2 

79.8 

2,386.2 

313.7 

167.7 

17.7 

2.0 
8,919.7  $

23.1  $
117.8 
163.0 
7.7 
40.0 
104.2 
455.8 

990.5 
36.7 
18.2 
79.9 
1,581.1 

166.

(12.

153.

64.

5,185.

9.

321.

80.

2,314.

329.

142.

16.

2.
8,402.

28.
105.
89.
10.
36.
103.
372.

989.
76.
14.
80.
1,532.

— 

—

4.1 
5,147.8 
(17.6)
2,204.3 
7,338.6 
8,919.7  $

4.
5,065.
(29.
1,829.
6,870.
8,402.

$

$

$

 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY
(in millions)

Common Stock

Shares

Amount

Additional
Paid-In
Capital

Accumulated
Other
Comprehensive
Loss

Retained
Earnings

Total
Stockholders’
Equity

Balance at January 1, 2021

Net income
Other comprehensive loss
Exercise of stock options
Restricted stock issued
Restricted stock grants surrendered
Stock-based compensation expense
Employee stock purchase plan

Balance at December 31, 2021

Net income
Other comprehensive loss
Restricted stock issued
Restricted stock grants surrendered
Stock-based compensation expense
Employee stock purchase plan
Stock issued for equity offerings, net of
transaction costs

Balance at December 31, 2022

Net income
Other comprehensive income
Exercise of stock options
Restricted stock issued
Restricted stock grants surrendered
Stock-based compensation expense
Management stock purchase plan
Employee stock purchase plan

Balance at December 31, 2023

394.3  $
— 
— 
0.2 
0.9 
(0.6)
— 
0.2 
395.0 
— 
— 
1.5 
(0.7)
— 
0.2 

10.7 
406.7 
— 
— 
0.4 
1.4 
(0.7)
— 
0.1 
0.2 
408.1  $

3.9  $
— 
— 
— 
— 
— 
— 
— 
3.9 
— 
— 
0.1 
— 
— 
— 

0.1 
4.1 
— 
— 
— 
— 
— 
— 
— 
— 
4.1  $

4,204.7  $
— 
— 
6.3 
— 
(33.3)
62.6 
13.0 
4,253.3 
— 
— 
— 
(23.1)
74.6 
15.0 

745.6 
5,065.4 
— 
— 
7.5 
— 
(23.2)
83.6 
(3.2)
17.7 
5,147.8  $

See accompanying notes.

F-9

(0.9) $
— 
(4.9)
— 
— 
— 
— 
— 
(5.8)
— 
(23.3)
— 
— 
— 
— 

— 
(29.1)
— 
11.5 
— 
— 
— 
— 
— 
— 
(17.6) $

1,167.5  $
292.6 
— 
— 
— 
— 
— 
— 
1,460.1 
369.5 
— 
— 
— 
— 
— 

— 
1,829.6 
374.7 
— 
— 
— 
— 
— 
— 
— 
2,204.3  $

5,375.
292.
(4.
6.
—

(33.
62.
13.
5,711.
369.
(23.
0.
(23.
74.
15.

745.
6,870.
374.
11.
7.
—

(23.
83.
(3.
17.
7,338.

 
 
 
 
 
COSTAR GROUP, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in millions)

Year Ended December 31,
2022

2023

2021

Operating activities:

Net income

Adjustments to reconcile net income to net cash provided by operating activities:

Depreciation and amortization

Amortization of deferred commissions costs

Amortization of Senior Notes discount and issuance costs

Non-cash lease expense

Stock-based compensation expense

Deferred income taxes, net

Credit loss expense

Other operating activities, net

Changes in operating assets and liabilities, net of acquisitions:

Accounts receivable

Prepaid expenses and other current assets

Deferred commissions

Accounts payable and other liabilities

Lease liabilities

Income taxes payable, net

Deferred revenue

Other assets

Net cash provided by operating activities

Investing activities:

Proceeds from sale and settlement of investments

Proceeds from sale of property and equipment and other assets

Purchase and construction of Richmond assets

Purchases of property and equipment and other assets

Cash paid for acquisitions, net of cash acquired

Net cash used in investing activities

Financing activities:

Payments of long-term debt assumed in acquisition

Repurchase of restricted stock to satisfy tax withholding obligations

Proceeds from equity offering, net of transaction costs

Proceeds from exercise of stock options and employee stock purchase plan

Other financing activities

Net cash (used in) provided by financing activities

Effect of foreign currency exchange rates on cash and cash equivalents

Net increase in cash and cash equivalents

Cash and cash equivalents at beginning of year

Cash and cash equivalents at end of year

F-10

$

374.7  $

369.5  $

107.5 

95.2 

2.4 

30.0 

85.0 

(37.2)

35.0 

(3.2)

(66.6)

(16.2)

(120.2)

33.9 

(39.2)

10.7 

(1.3)
(1.0)

489.5 

3.8 

— 

(117.5)

(25.3)

(99.6)

(238.6)

— 

(26.4)

— 

23.4 

(0.7)

(3.7)

0.7 

247.9 

4,968.0 
5,215.9  $

$

137.9 

76.1 

2.4 

38.5 

75.2 

(31.2)

18.3 

(2.4)

(46.4)

(17.9)

(116.8)

23.2 

(37.4)

(19.3)

6.8 
2.2 

478.7 

0.9 

30.1 

(35.2)

(58.6)

(6.3)

(69.1)

(2.2)

(23.0)

745.7 

13.5 

— 

734.0 

(2.7)

1,140.9 

3,827.1 
4,968.0  $

292

139

63

2

28

63

24

10

(0.

(29.

(14.

(72.

(30.

(30.

5

17
(0.

469

—

0

(123.

(65.

(193.

(381.

—

(33.

—

18

(0.

(15.

(1.

71

3,755
3,827

 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in millions)

Supplemental cash flow disclosures:

Interest paid

Income taxes paid

Supplemental non-cash investing and financing activities:

Consideration owed for acquisitions

Accrued capital expenditures and non-cash landlord incentives

Year Ended December 31,
2022

2023

2021

$

$

$

$

30.7  $

163.2  $

29.9  $

169.2  $

7.6  $

28.9  $

—  $

14.7  $

31

82

0

2

See accompanying notes.

F-11

 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.

ORGANIZATION

CoStar  Group  (the  “Company”)  provides  information,  analytics,  online  marketplaces  and  auction  services  to  the  commercial  real  estate  and  related
business community through its comprehensive, proprietary database of commercial real estate information and related tools. The Company provides online
marketplaces for commercial real estate, apartment rentals, residential real estate, land for sale and businesses for sale, and its services are typically distributed
to  its  clients  under  subscription-based  agreements  that  typically  renew  automatically,  a  majority  of  which  have  a  term  of  at  least  one  year.  The  Company
operates  within  two  operating  segments,  North  America,  which  includes  the  U.S.  and  Canada,  and  International,  which  primarily  includes  Europe,  Asia-
Pacific and Latin America.

The Company acquired Homes.com, BureauxLocaux, Business Immo, and OnTheMarket in May 2021, October 2021, April 2022 and December 2023,
respectively. Through our Homes.com Acquisition and OnTheMarket Acquisition, we also offer online platforms that manage workflow and marketing for
residential real estate agents and brokers and provide portals for homebuyers to view residential property listings. See Note 5 for further discussion of these
acquisitions.

2.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The  consolidated  financial  statements  include  the  accounts  of  the  Company  and  its  wholly  owned  subsidiaries.  All  intercompany  balances  and

transactions have been eliminated in consolidation. Accounting policies are consistent for each operating segment.

Use of Estimates

The  preparation  of  financial  statements  in  conformity  with  GAAP  requires  management  to  make  estimates  and  assumptions  that  affect  the  amounts
reported  in  the  financial  statements  and  accompanying  notes.  On  an  ongoing  basis,  the  Company  evaluates  its  estimates  and  assumptions,  including  those
related  to  revenue  recognition,  allowance  for  credit  losses,  the  useful  lives  and  recoverability  of  long-lived  and  intangible  assets,  goodwill,  income  taxes,
accounting  for  business  combinations,  stock-based  compensation,  estimating  the  Company's  incremental  borrowing  rate  for  its  leases,  and  contingencies,
among others. The Company bases these estimates on historical and anticipated results, trends and various other assumptions that it believes are reasonable,
including assumptions as to future events. These estimates form the basis for making judgments about the carrying values of assets and liabilities and recorded
revenues and expenses. Actual results could differ from these estimates.

Revenue Recognition

The  Company  derives  revenues  primarily  by  (i)  providing  access  to  its  proprietary  database  of  commercial  real  estate  information  and  (ii)  providing
online marketplaces for professional property management companies, property owners, real estate agents and brokers and landlords, in each case, typically
through a fixed monthly fee for its subscription-based services. Other subscription-based services include (i) real estate and lease management solutions to
commercial customers, real estate investors and lenders, (ii) access to applications to manage workflow and advertising and marketing services for residential
real estate agents through its Homes.com Network and the acquisition of OnTheMarket, (iii) benchmarking and analytics for the hospitality industry and (iv)
market research, portfolio and debt analysis, management and reporting capabilities.

Subscription  contract  rates  are  generally  based  on  the  number  of  sites,  number  of  users,  organization  size,  the  client’s  business  focus,  geography,  the
number of properties reported on or analyzed, the number and types of services to which a client subscribes, the number of properties a client advertises and
the prominence and placement of a client's advertised properties in the search results. The Company’s subscription-based license agreements typically renew
automatically, and a majority have a term of at least one year. Revenue from our subscription-based contracts was approximately 95%, 93% and 93% of total
revenue for the years ended December 31, 2023, 2022 and 2021, respectively.

The Company also derives revenues from transaction-based services including: (i) an online auction platform for commercial real estate through Ten-X,
(ii) providing online tenant applications, including background and credit checks, and rental payment processing and (iii) ancillary products and services that
are sold on an ad hoc basis.

The  Company  analyzes  contracts  to  determine  the  appropriate  revenue  recognition  using  the  following  steps:  (i)  identification  of  contracts  with

customers, (ii) identification of distinct performance obligations in the contract, (iii)

F-12

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

determination  of  contract  transaction  price,  (iv)  allocation  of  contract  transaction  price  to  the  performance  obligations  and  (v)  determination  of  revenue
recognition based on timing of satisfaction of the performance obligations.

The Company recognizes revenues upon the satisfaction of its performance obligation(s) (upon transfer of control of promised services to its customers)
in an amount that reflects the consideration to which it expects to be entitled to in exchange for those services. Revenues from subscription-based services are
recognized on a straight-line basis over the term of the agreement. Revenues from transaction-based services are recognized when the promised product or
services are delivered, which, in the case of Ten-X auctions, is at the time of a successful closing for the sale of the property.

In limited circumstances, the Company's contracts with customers include promises to transfer multiple services, such as contracts for its subscription-
based  services  and  professional  services.  For  these  contracts,  the  Company  accounts  for  individual  performance  obligations  separately  if  they  are  distinct,
which involves the determination of the standalone selling price for each distinct performance obligation.

Deferred revenue results from amounts billed in advance to customers or cash received from customers in advance of the Company's fulfillment of its

performance obligation(s) and is recognized as those obligations are satisfied.

Contract  assets  represent  a  conditional  right  to  consideration  for  satisfied  performance  obligations  that  become  a  receivable  when  the  conditions  are

satisfied. Contract assets are generated when contractual billing schedules differ from revenue recognition timing.

Certain  sales  commissions  are  considered  incremental  and  recoverable  costs  of  obtaining  a  contract  with  a  customer.  Sales  commissions  incurred  for
obtaining new contracts are deferred and then amortized as selling and marketing expenses on a straight-line basis over a period of benefit that the Company
has  determined  to  be  three  years. The  three-year  amortization  period  was  determined  based  on  several  factors,  including  the  nature  of  the  technology  and
proprietary data underlying the services being purchased, customer contract renewal rates and industry competition. Sales commissions that do not represent
incremental costs of obtaining a contract, or that would otherwise be amortized over a period of one year or less, are not subject to capitalization.

See Note 3 for further discussion of the Company's revenue recognition.

Cost of Revenues

Cost  of  revenues  principally  consists  of  salaries,  benefits,  bonuses,  stock-based  compensation  expenses  and  other  indirect  costs  for  the  Company's
researchers who collect and analyze the real estate data that is the basis for the Company's information, analytics and online marketplaces and for employees
that support these products. Additionally, cost of revenues includes the cost of data from third-party data sources, product hosting costs, and costs related to
advertising  purchased  on  behalf  of  customers,  credit  card  and  other  transaction  fees  relating  to  processing  customer  transactions,  which  are  expensed  as
incurred, and the amortization of acquired trade names, technology and certain other intangible assets.

Foreign Currency Translation

The Company’s reporting currency is the U.S. dollar. The functional currency for the majority of its operations is the local currency, with the exception of
certain international locations for which the functional currency is the British Pound. Assets and liabilities denominated in a foreign currency are translated
into U.S. dollars using the exchange rates in effect as of the balance sheet date. Gains and losses resulting from translation are included in accumulated other
comprehensive loss. Currency gains and losses on the translation of intercompany loans made to foreign subsidiaries that are of a long-term investment nature
are also included in accumulated other comprehensive loss. Gains and losses resulting from transactions denominated in a currency other than the functional
currency  of  the  entity  are  included  in  other  income,  net  in  the  consolidated  statements  of  operations  using  the  average  exchange  rates  in  effect  during  the
period. The Company recognized net foreign currency gains of $3.0 million, $1.4 million, and a loss of $0.3 million for the years ended December 31, 2023,
2022 and 2021, respectively, which are included in other income, net on the consolidated statements of operations.

Accumulated Other Comprehensive Loss

F-13

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The components of accumulated other comprehensive loss, net of tax, were as follows (in millions):

Foreign currency translation loss

Total accumulated other comprehensive loss

As of December 31,

2023

2022

$
$

(17.6) $
(17.6) $

(29
(29

There were no amounts reclassified out of accumulated other comprehensive loss to the consolidated statements of operations for both the years ended

December 31, 2023 and 2022.

Advertising Costs

The  Company  expenses  advertising  costs  as  incurred.  Advertising  costs  include  digital  marketing,  television,  radio,  print  and  other  media  advertising.

Advertising costs were $549.6 million, $305.7 million and $312.0 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Income Taxes

Deferred  income  taxes  result  from  temporary  differences  between  the  tax  basis  of  assets  and  liabilities  and  the  basis  reported  in  the  Company’s
consolidated financial statements. Deferred tax liabilities and assets are determined based on the difference between the financial statement and the tax basis
of assets and liabilities using enacted rates in effect during the year in which the Company expects differences to reverse. Valuation allowances are provided
against  assets,  including  net  operating  losses,  if  the  Company  determines  it  is  more  likely  than  not  that  some  portion  or  all  of  an  asset  may  not  be
realized. Interest and penalties related to income tax matters are recognized in income tax expense.

The Company has elected to record the GILTI under the current-period cost method.

See Note 12 for further discussion of income taxes.

Net Income Per Share

Net income per share is computed by dividing net income by the weighted-average number of common shares outstanding during the period on a basic
and diluted basis. The Company's potentially dilutive securities include outstanding stock options, unvested stock-based awards, which include restricted stock
awards that vest over a specific service period, restricted stock awards with a performance and market condition, restricted stock units and Matching RSUs
awarded  under  the  MSPP.  Shares  underlying  unvested  restricted  stock  awards  that  vest  based  on  a  performance  and  market  condition  that  have  not  been
achieved as of the end of the period are not included in the computation of basic or diluted earnings per share. Diluted net income per share considers the
impact of potentially dilutive securities except when the inclusion of the potentially dilutive securities would have an anti-dilutive effect.

See Note 16 for further discussion of the Company's calculation of net income per share.

Stock-Based Compensation

Equity instruments issued in exchange for services performed by officers, employees and directors of the Company are accounted for using a fair-value

based method and the fair value of such equity instruments is recognized as expense in the consolidated statements of operations.

For stock-based awards that vest over a specific service period, compensation expense is measured based on the fair value of the awards at the grant date
and is recognized on a straight-line basis over the service period of the awards, net of an estimated forfeiture rate. For equity instruments that vest based on
achievement of both a performance and market condition, stock-based compensation expense is recognized over the service period of the awards based on the
expected achievement of the related performance conditions at the end of each reporting period. If the Company's initial estimates of the achievement of the
performance  conditions  change,  the  related  stock-based  compensation  expense  may  fluctuate  from  period  to  period  based  on  those  estimates.  If  the
performance  conditions  are  not  met,  no  stock-based  compensation  expense  will  be  recognized  and  any  previously  recognized  stock-based  compensation
expense will be reversed. For awards with both a performance and a market condition, the Company estimates the fair value of each equity instrument granted
on the date of grant using a Monte-Carlo simulation model. This pricing model uses multiple simulations to evaluate the probability of achieving the market
condition to calculate the fair value of the awards which includes the recent market price and volatility of the Company's shares. When

F-14

 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

determining the grant date fair value of all stock-based awards, the Company considers whether it is in possession of any material, non-public information that
upon  its  release  would  have  a  material  effect  on  its  share  price,  and  if  so,  whether  the  observable  share  price  or  expected  volatility  assumptions  used  in
determining the fair value of the awards should be adjusted.

Stock-based  compensation  expense  for  stock  options,  restricted  stock  awards  and  restricted  stock  units  issued  under  equity  incentive  plans,  stock
purchases under the ESPP, DSUs and Matching RSUs awarded under the MSPP included in the Company’s consolidated statements of operations were as
follows (in millions):

Cost of revenues
Selling and marketing (excluding customer base amortization)
Software development
General and administrative

Total stock-based compensation expense

Cash and Cash Equivalents

Year Ended December 31,

2023

2022

2021

$

$

14.3  $
9.1 
17.5 
44.1 
85.0  $

12.6 

$

7.8  7.8 

13.0 
41.8 
75.2 

$

11
6
12
33
63

The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. Cash and cash
equivalents were $5.2 billion and $5.0 billion as of December 31, 2023 and 2022, respectively. The Company had no restricted cash as of December 31, 2023
and 2022.

Concentration of Credit Risk and Financial Instruments

The Company’s customer base creates a lack of dependence on any individual customer that mitigates the risk of nonpayment of the Company’s accounts
receivable. No single customer accounted for more than 5% of the Company’s revenues for each of the years ended December 31, 2023, 2022 and 2021. The
carrying amount of the accounts receivable approximates the net realizable value.

The Company holds cash at major financial institutions that often exceed Federal Deposit Insurance Corporation-insured limits. The Company manages
its  credit  risk  associated  with  cash  concentrations  by  diversifying  cash  holdings  across  AAA  rated  Government  and  Treasury  Money  Market  Funds  and
multiple high quality financial institutions, and by periodically evaluating the credit quality of the primary financial institutions holding such deposits. The
carrying value of cash approximates fair value. Historically, the Company has not experienced any losses due to such cash concentrations.

Allowance for Credit Losses

The Company maintains an allowance for credit losses to cover its current expected credit losses on its trade receivables and contract assets arising from
the failure of customers to make contractual payments. The Company estimates credit losses expected over the life of its trade receivables and contract assets
based on historical information combined with current conditions that may affect a customer’s ability to pay and reasonable and supportable forecasts. While
the Company uses various credit quality metrics, it primarily monitors collectability by reviewing the duration of collection pursuits on its delinquent trade
receivables  and  historical  write-off  trends.  Based  on  the  Company’s  experience,  the  customer's  delinquency  status,  which  is  analyzed  periodically,  is  the
strongest  indicator  of  the  credit  quality  of  the  underlying  trade  receivables.  The  Company’s  policy  is  to  write-off  trade  receivables  when  they  are  deemed
uncollectible. A majority of the Company's trade receivables are less than 365 days outstanding.

Under the CECL impairment model, the Company develops and documents its allowance for credit losses on its trade receivables based on five portfolio
segments. The determination of portfolio segments is based primarily on the qualitative consideration of the nature of the Company’s business operations and
the characteristics of the underlying trade receivables, as follows:

•

CoStar Portfolio Segment - The CoStar portfolio segment consists of two classes of trade receivables based on geographical location: North America
and International.

F-15

 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

•

Information Services Portfolio Segment - The Information Services portfolio segment consists of four classes of trade receivables: CoStar Real Estate
Manager; Information Services, North America; STR, North America; and STR, International.

• Multifamily Portfolio Segment - The Multifamily portfolio segment consists of one class of trade receivables.

•

LoopNet Portfolio Segment - The LoopNet portfolio segment consists of one class of trade receivables.

• Other  Marketplaces  Portfolio  Segment  -  The  Other  Marketplaces  portfolio  segment  consists  of  two  classes  of  trade  receivables:  Ten-X  and  other

marketplaces.

The  majority  of  Residential  revenue  is  e-commerce  based  and  does  not  result  in  accounts  receivable.  Residential  accounts  receivable  and  the  related

allowance for credit losses are not material.

See Note 4 for further discussion of the Company’s accounting for allowance for credit losses.

Leases

The  determination  of  whether  an  arrangement  contains  a  lease  and  the  classification  of  a  lease,  if  applicable,  is  made  at  the  commencement  of  the
arrangement, at which time the Company also measures and recognizes an ROU asset, representing the Company’s right to use the underlying asset, and a
lease liability, representing the Company’s obligation to make lease payments under the terms of the arrangement. For the purposes of recognizing ROU assets
and lease liabilities associated with the Company’s leases, the Company has elected the practical expedient to not recognize a ROU asset or lease liability for
short-term leases, which are leases with a term of 12 months or less. The lease term is defined as the noncancelable portion of the lease term, plus any periods
covered by an option to extend the lease if it is reasonably certain that the option will be exercised.

In determining the amount of lease payments used in measuring ROU assets and lease liabilities, the Company has elected the practical expedient not to
separate non-lease components from lease components for all classes of underlying assets. Consideration deemed part of the lease payments used to measure
ROU assets and lease liabilities generally includes fixed payments and variable payments based on either an index or a rate, offset by lease incentives. Upon
commencement, the initial ROU asset also includes any lease prepayments. ROU assets and liabilities are recognized at the lease commencement date based
on  the  present  value  of  lease  payments  over  the  lease  term.  The  rates  implicit  within  the  Company's  leases  are  generally  not  determinable.  Therefore,  the
Company's incremental borrowing rate is used to determine the present value of lease payments. The determination of the Company’s incremental borrowing
rate requires judgment and is determined at lease commencement and is subsequently reassessed upon a modification to the lease arrangement.

Lease costs related to the Company's operating leases are generally recognized as a single ratable lease cost over the lease term. ROU assets resulting

from finance leases are accounted for as property and equipment, net.

See Note 7 for further discussion of the Company’s accounting for leases.

Property and Equipment, Net

Property and equipment are stated at cost, net of accumulated depreciation and amortization. All repairs and maintenance costs are expensed as incurred.
Costs  related  to  acquisition  of  additional  aircraft  components  or  the  replacement  of  existing  aircraft  components  are  capitalized  and  depreciated  over  the
estimated useful life of the aircraft or the added or replaced component, whichever is less. Depreciation and amortization are calculated on a straight-line basis
over the following estimated useful lives of the assets:

Buildings
Land
Aircrafts
Furniture and office equipment
Vehicles
Computer hardware and software
Leasehold improvements

Twenty to thirty-nine years
Indefinite
Ten to twenty years
Five to ten years
Four to five years
Three to five years
Shorter of lease terms or useful life

F-16

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Qualifying internal-use software costs incurred during the application development stage, which consist primarily of internal product development costs,
are capitalized and amortized over the estimated useful life of the asset. All other costs are expensed as incurred. The Company removes fully depreciated
property and equipment from the cost and accumulated depreciation amounts disclosed in the period they become fully depreciated.

In January 2021, the Company purchased an office building located in Richmond, Virginia, together with the land and assumed an existing lease for a
purchase price of $131 million, inclusive of property taxes, title insurance and other transaction costs. The purchase of the Richmond building was accounted
for as an asset acquisition, including an intangible asset for the assumed lease. The assumed lease terminated in the year ending December 31 2023. The net
impact  from  the  lease  arrangement  is  recorded  in  other  income,  net  on  the  consolidated  statements  of  operations  and  was  not  material.  The  Company  has
broken ground on an expansion of its campus in Richmond, Virginia and acquired a small office building near the campus to facilitate employee staging while
the expansion is being constructed. The capitalized spending associated with these efforts is recorded in the purchase and construction of Richmond assets line
of the consolidated statements of cash flows.

Long-Lived Assets, Intangible Assets and Goodwill

Long-lived assets, such as property and equipment, and purchased intangibles subject to amortization, are reviewed for impairment whenever events or
changes in circumstances indicate that the carrying amount of an asset may not be recoverable. The Company capitalizes interest on borrowings during the
active construction period of major capital projects. Capitalized interest is added to the cost of the underlying asset and amortized over the estimated useful
life of the asset. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to the estimated undiscounted
future cash flows expected to be generated by the asset or asset group. If the carrying amount of an asset exceeds its estimated undiscounted future cash flows,
an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset.

During 2022, the Company ceased using leased properties in California and Maryland as part of efforts to centralize its workforce, which resulted in an
impairment charge of $9 million for lease ROU assets and property and equipment related to abandoned leases. The impairment was recorded in the general
and administrative expense line of the consolidated statements of operations. The leases related to the North America segment.

Acquired  technology  and  data,  customer  base  assets,  trade  names  and  other  intangible  assets  are  related  to  the  Company’s  acquisitions.  Acquired
technology and data is amortized on a straight-line basis over periods ranging from 2 years to 7 years. Acquired intangible assets characterized as customer
base assets consist of acquired customer contracts and the related customer relationships and are amortized over periods ranging from 3 years to 13 years.
Acquired customer bases are amortized on an accelerated or straight-line basis depending on the expected economic benefit of the intangible asset. Acquired
trade  names  and  other  intangible  assets  are  amortized  on  a  straight-line  basis  over  periods  ranging  from  3  years  to  15  years.  The  Company  removes  fully
amortized intangible assets from the cost and accumulated amortization amounts disclosed.

Goodwill represents the future economic benefits arising from a business combination and is calculated as the excess of the purchase consideration paid in
a business combination over the fair value of the net identifiable assets acquired. Goodwill is not amortized, but instead is assigned to each of the Company's
reporting units and tested for impairment at least annually, on October 1, or more frequently if an event or other circumstance indicates that the fair value of a
reporting unit may be below its carrying amount. The Company may first assess qualitative factors to evaluate whether it is more likely than not that the fair
value of a reporting unit is less than its carrying amount, or elect to bypass the qualitative assessment. If it is determined that it is more likely than not that the
fair  value  of  a  reporting  unit  is  less  than  its  carrying  value,  or  the  Company  elects  to  bypass  the  qualitative  assessment,  the  Company  then  performs  a
quantitative  assessment  by  determining  the  fair  value  of  each  reporting  unit. The  estimate  of  the  fair  value  of  each  reporting  unit  is  based  on  a  projected
discounted  cash  flow  model  that  includes  significant  assumptions  and  estimates  including  the  discount  rate,  growth  rate  and  future  financial  performance.
Assumptions about the discount rate are based on a weighted average cost of capital for comparable companies. Assumptions about the growth rate and future
financial performance of a reporting unit are based on the Company's forecasts, business plans, economic projections and anticipated future cash flows. The
fair value of each reporting unit is compared to the carrying amount of the reporting unit. If the carrying value of the reporting unit exceeds the fair value, then
an impairment loss is recognized for the difference.

See Notes 5, 9 and 10 for further discussion of acquisitions, goodwill and intangible assets, respectively.

F-17

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Debt Issuance Costs

Costs incurred in connection with the issuance of long-term debt are deferred and amortized as interest expense over the term of the related debt using the
effective interest method for term debt and on a straight-line basis for revolving debt. The Company made a policy election to classify deferred issuance costs
on the revolving credit facility as a long-term asset on its consolidated balance sheets. Upon a refinancing or amendment, previously capitalized debt issuance
costs are expensed and included in loss on extinguishment of debt if the Company determines that there has been a substantial modification of the related debt.
If the Company determines that there has not been a substantial modification of the related debt, any previously capitalized debt issuance costs are amortized
as interest expense over the term of the new debt instrument.

See Note 11 for further discussion of the Company's accounting for its outstanding debt, revolving credit facility and related issuance costs.

Business Combinations

The  Company  includes  the  results  of  operations  of  the  businesses  that  it  acquires  from  the  date  of  acquisition.  The  Company  generally  allocates  the
purchase consideration to the tangible assets acquired and liabilities assumed and intangible assets acquired based on their estimated fair values on the date of
the acquisition. The purchase price is generally determined based on the fair value of the assets transferred, liabilities assumed and equity interests issued,
after considering any transactions that are separate from the business combination. The excess of the fair value of purchase consideration over the fair values
of these identifiable assets and liabilities is recorded as goodwill. The Company applies significant assumptions, estimates and judgments in determining the
fair value of assets acquired and liabilities assumed on the acquisition date, especially with respect to intangible assets and contingent liabilities. Significant
estimates in valuing certain intangible assets include, but are not limited to, future expected cash flows from acquired customer bases, acquired technology and
acquired trade names, useful lives, royalty rates and discount rates. Estimates of fair value are based on assumptions believed to be reasonable, but which are
inherently uncertain and unpredictable and, as a result, actual results may differ from estimates. Any adjustments to provisional amounts that are identified
during the measurement period, not to exceed one year from the date of acquisition, are recorded in the reporting period in which the adjustment amounts are
determined. Upon the conclusion of the measurement period, any subsequent adjustments are recorded to earnings.

For  a  given  acquisition,  the  Company  may  identify  certain  pre-acquisition  contingencies  as  of  the  acquisition  date  and  may  extend  its  review  and
evaluation of these pre-acquisition contingencies throughout the measurement period in order to obtain sufficient information to assess whether the Company
includes these contingencies as a part of the fair value estimates of assets acquired and liabilities assumed and, if so, to determine their estimated amounts.

If  the  Company  cannot  reasonably  determine  the  fair  value  of  a  pre-acquisition  contingency  (non-income  tax  related)  by  the  end  of  the  measurement
period, which is generally the case given the nature of such matters, the Company will recognize an asset or a liability for such pre-acquisition contingency if:
(i) it is probable that an asset existed or a liability had been assumed at the acquisition date and (ii) the amount of the asset or liability can be reasonably
estimated. Subsequent to the measurement period, changes in the Company's estimates of such contingencies will affect earnings and could have a material
effect on its results of operations and financial position.

In addition, uncertain tax positions and tax-related valuation allowances assumed in connection with a business combination are initially estimated as of
the acquisition date. The Company reevaluates these items based upon facts and circumstances that existed as of the acquisition date with any adjustments to
its preliminary estimates being recorded to goodwill, provided that the Company is within the measurement period. Subsequent to the measurement period,
changes  to  these  uncertain  tax  positions  and  tax-related  valuation  allowances  will  affect  the  Company's  provision  for  income  taxes  in  its  consolidated
statements of operations and comprehensive income and could have a material impact on its results of operations and financial position.

Transaction  costs  associated  with  business  combinations  are  expensed  as  incurred,  and  are  included  in  general  and  administrative  expenses  in  the

consolidated statements of operations.

Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In  2021,  the  Company  adopted  ASU  2021-08,  Business  Combinations  (Topic  805),  Accounting  for  Contract  Assets  and  Contract  Liabilities  from
Contracts with Customers. This guidance requires contract assets and liabilities acquired or assumed in an acquisition be measured in accordance with the
accounting framework for revenue from contracts with customers as if the

F-18

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Company had originated the acquired contract. This is an exception to the general requirement to measure assets acquired and liabilities assumed at their fair
value on the acquisition date. The Company applied this revised guidance to all acquisitions in the year ended December 31, 2021. The application of this
guidance to contract assets and contract liabilities acquired or assumed in connection with the Company's acquisitions for the year ended December 31, 2021
did not have a material impact on the Company's consolidated financial statements and related disclosures.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial
Reporting. ASC 848 contains optional expedients and exceptions for applying GAAP to debt, contracts, hedging relationships and other transactions affected
by reference rate reform. The provisions of ASC 848 must be applied to all contracts that are accounted for under a Topic, Subtopic or Industry Subtopic for
all transactions other than derivatives, which may be applied at a hedging relationship level. Originally, the guidance was effective for fiscal years beginning
after  January  1,  2021,  including  interim  periods  within  those  fiscal  years.  However,  in  response  to  the  deferral  of  the  cessation  date  for  certain  overnight
LIBOR measures, the FASB issued ASU 2022-06 on December 21, 2022, which extends the sunset date of Topic 848 to December 31, 2024. The Company's
2020  Credit  Agreement  provides  for  a  $750  million  revolving  credit  facility  and  a  letter  of  credit  sublimit  of  $20  million,  with  interest  rates  previously
benchmarked to LIBOR. The Company adopted this accounting pronouncement with the execution of the First Amendment to the 2020 Credit Agreement in
May 2023. This guidance provides an optional practical expedient that allows a qualifying modification to be accounted for as a debt modification rather than
be analyzed under existing guidance to determine if the modification should be accounted for as a debt extinguishment. In adopting this accounting standard,
we have elected to apply this optional expedient. Adopting this accounting standard did not have a material impact on the Company's consolidated financial
statements and related disclosures.

Recent Accounting Pronouncements Not Yet Adopted

In March 2022, the FASB issued ASU 2022-02, Financial Instruments-Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures.
This ASU eliminates prior guidance on troubled debt restructurings for creditors that have adopted ASU 2016-13, Measurement of Credit Losses in Financial
Statements, and adds enhanced disclosures for creditors with respect to loan refinancings and restructurings for borrowers experiencing financial difficulty. In
addition, the ASU amends guidance on "vintage disclosures" to require the disclosure of current period gross write offs by year of origination. This guidance
is effective for fiscal years beginning after December 15, 2022. The Company expects there to be no material impact on its consolidated financial statements
and related disclosures from the adoption of this ASU.

In November 2023, the FASB issued ASU No. 2023-07 (Topic 280), Improvements to Reportable Segment Disclosures. The ASU primarily will require
enhanced disclosures about significant segment expenses. Additionally, it requires disclosure of the title and position of the individual identified as the CODM
and an explanation of how the CODM uses the reported measures of a segment’s profit or loss in assessing segment performance and deciding how to allocate
resources. The ASU is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15,
2024. Adoption of the ASU should be applied retrospectively to all prior periods presented in the financial statements. The Company is currently evaluating
the impact this ASU will have on its consolidated financial statements and related disclosures.

In  December  2023,  the  FASB  issued  ASU  No.  2023-09  (Topic  740),  Improvements  to  Income  Tax  Disclosures  (Topic  740).  The  ASU  requires
disaggregated  information  about  a  reporting  entity’s  effective  tax  rate  reconciliation  as  well  as  an  expansion  of  other  income  tax  disclosures.  The  ASU  is
effective on a prospective basis for annual reporting periods beginning after December 15, 2024. The Company is currently evaluating the impact this ASU
will have on its consolidated financial statements and related disclosures.

F-19

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

3.    REVENUE FROM CONTRACTS WITH CUSTOMERS

Disaggregated Revenue

The Company provides information, analytics and online marketplaces to the commercial real estate industry, hospitality industry, residential industry and

related professionals. Revenues by operating segment and type of service consist of the following (in millions):

2023

Year Ended December 31,

2022

2021

North America

International

Total

North America

International

Total

North America

International

Total

CoStar
Information
services
Multifamily
LoopNet
Residential
Other
Marketplaces

$

886.0 

$

39.2 

$

925.2 

$

800.2 

$

36.8 

$

837.0  $

686.9  $

35.9  $

132.4 
914.2 
255.4 
43.9 

133.8 

38.5 
— 
9.4 
2.2 

— 

170.9 
914.2 
264.8
46.1

133.8 

125.0 
745.4 
223.7
73.7

138.0 

32.4 
— 
7.2
—

— 

157.4 
745.4 
230.9
73.7

138.0 

113.8 
678.7 
204.8 
74.6 

118.8 

27.9 
— 
2.7 
— 

— 

Total revenues

$

2,365.7 

$

89.3 

$

2,455.0 

$

2,106.0 

$

76.4 

$

2,182.4  $

1,877.6  $

66.5  $

Deferred Revenue

Deferred revenue as of December 31, 2023 and 2022 was as follows (in millions):

Balance

Current portion

Non-current portion

Total deferred revenue

Balance Sheet Caption

Deferred revenue

Lease and other long-term liabilities

Changes in deferred revenue for the period were as follows (in millions):

(1)

Balance at December 31, 2022
Revenue recognized in the current period from the amounts in the beginning balance
New deferrals, net of amounts recognized in the current period
Effects of foreign currency

Balance at December 31, 2023
__________________________

(2)

December 31,

2023

2022

$

$

104.2  $

0.1 

104.3  $

$

$

722.

141.
678.
207.
74.

118.

1,944.

103.6 

0.2 

103.8 

103.8 
(103.8)
103.4 
0.9 
104.3 

(1) 

(2)

This balance includes $1.8 million of net new deferrals recognized in connection with business acquisitions made in 2022. See Note 5 for further discussion of acquisitions.
 This balance includes $1.0 million of net new deferrals recognized in connection with business acquisitions made in 2023. See Note 5 for further discussion of acquisitions.

Contract Assets

Contract assets are generated when contractual billing schedules differ from revenue recognition timing and represent a conditional right to consideration
for satisfied performance obligations that becomes a receivable when the conditions are satisfied. Contract assets as of December 31, 2023 and 2022 were as
follows (in millions):

F-20

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Balance

Current portion

Non-current portion

Total contract assets

Balance Sheet Caption

Prepaid expenses and other current assets

Deposits and other assets

December 31,

2023

2022

$

$

5.8  $

8.0 

13.8  $

4

8

12

Revenue recognized from contract assets for the years ended December 31, 2023 and 2022 were $1.4 million and $3.2 million, respectively.

Commissions

Commissions expense is included in selling and marketing expense in the Company's consolidated statements of operations. The Company determined
that no deferred commissions were impaired as of both December 31, 2023 and 2022. Commissions expense activity for the years ended December 31, 2023,
2022 and 2021, was as follows (in millions):

Commissions incurred
Commissions capitalized in the current period
Amortization of deferred commissions costs

Total commissions expense

See Note 2 for the Company's policy on accounting for commissions.

Unsatisfied Performance Obligations

2023

Year Ended December 31,
2022

2021

$

$

173.5  $
(120.2)
95.2 
148.5  $

162.1  $
(116.8)
76.1 
121.4  $

117
(72
63
108

Remaining  contract  consideration  for  which  revenue  had  not  been  recognized  due  to  unsatisfied  performance  obligations  was  $409.6  million  as  of
December 31, 2023, which the Company expects to recognize over the next five years. This amount does not include contract consideration for contracts with
a duration of one year or less.

F-21

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

4.

ALLOWANCE FOR CREDIT LOSSES

The following tables detail the activity related to the allowance for credit losses for trade receivables by portfolio segment (in millions):

Beginning balance at December 31,
2022
Current-period provision (release)
for expected credit losses
Write-offs charged against the
allowance, net of recoveries and
other
Ending balance at December 31,
2023

$

$

CoStar

Information
Services

Year Ended December 31, 2023

Multifamily

LoopNet

Other
Marketplaces

Total

4.5  $

1.1  $

4.3  $

1.4  $

0.9  $

22.1 

(16.9)

1.4 

— 

4.9 

(1.9)

6.0 

(4.7)

0.6 

(0.5)

9.7  $

2.5  $

7.3  $

2.7  $

1.0  $

12

35

(24.

23

CoStar

Information
Services

-
Year Ended December 31, 2022

Multifamily

LoopNet

Other
Marketplaces

Total

Beginning balance at December 31,
2021
Current-period provision (release)
for expected credit losses
Write-offs charged against the
allowance, net of recoveries and
other
Ending balance at December 31,
2022

$

$

5.4  $

9.2 

(10.1)

1.8  $

3.4  $

2.0  $

0.8  $

(0.6)

(0.1)

5.8 

(4.9)

3.8 

(4.4)

0.1 

— 

4.5  $

1.1  $

4.3  $

1.4  $

0.9  $

13.4 

18.3 

(19.5)

12.2 

Beginning balance at December 31,
2020
Current-period provision for
expected credit losses
Write-offs charged against the
allowance, net of recoveries and
other
Ending balance at December 31,
2021

$

$

CoStar

Information
Services

Year Ended December 31, 2021

Multifamily

LoopNet

Other
Marketplaces

Total

5.6  $

2.7  $

4.4  $

1.7  $

0.8  $

5.6 

(5.8)

(0.4)

(0.5)

3.1 

(4.1)

2.6 

(2.3)

— 

— 

5.4  $

1.8  $

3.4  $

2.0  $

0.8  $

15

10

(12

13

Credit  loss  expense  is  included  in  general  and  administrative  expenses  on  the  consolidated  statements  of  operations.  Credit  loss  expense  related  to
contract  assets  was  not  material  for  the  years  ended  December  31,  2023,  2022  and  2021.  The  majority  of  the  Residential  portfolio  segment  revenue  is  e-
commerce based and does not result in accounts receivable.

F-22

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

5.    ACQUISITIONS

OnTheMarket

On December 12, 2023, CoStar UK acquired OnTheMarket, the operator of onthemarket.com, a U.K. residential property portal. At the time of closing,
CoStar  UK  acquired  all  of  the  then  issued  ordinary  share  capital  of  OnTheMarket  for  cash  consideration  of  110  pence  per  share  or  £94.0  million
($117.9 million). OnTheMarket had certain share option contracts that had not been exercised at the time of closing for which CoStar UK has established a
liability for £2.0 million ($2.6 million). This resulted in total consideration of £96.0 million ($120.4 million). Certain shares outstanding at the time of the
closing resulted from contracts held by employees of OnTheMarket or its subsidiaries that required OnTheMarket to withhold income and employment taxes
of £4.0 million ($5.1 million) which represented consideration payable at December 31, 2023 and were remitted in January 2024.

The following table summarized the amounts recorded for acquired assets and assumed liabilities recorded at their fair value as of the closing date of the

acquisition (in millions):

Cash and cash equivalents
Accounts receivable
Goodwill
Intangible assets
Accrued expenses
Accrued wages and commissions
Deferred income taxes, net
Other assets and liabilities

Fair value of identifiable net assets acquired

Preliminary:
December 12, 2023
18.2
2.
62.
55.2
(12.7
(2.0
(3.0
(0.4
120.4

$

$

The net assets of OnTheMarket were recorded at their estimated fair values. In valuing the acquired assets and assumed liabilities, fair value estimates
were based primarily on future expected cash flows, market rate assumptions for contractual obligations and appropriate discount rates. The purchase price
allocation is preliminary, subject primarily to the Company's assessment of certain tax matters, contingencies and intangibles valuation. The estimated fair
value of the customer base assets incorporated significant assumptions that had a material impact on the estimated fair value, such as discount rates, projected
revenue growth rates, customer attrition rates and profit margins.

The following table summarizes the fair values (in millions) of the identifiable intangible assets acquired in the OnTheMarket Acquisition included in the

Company's International operating segment, their related estimated useful lives (in years) and their respective amortization methods:

Customer base
Trade name
Technology

Total intangible assets

Estimated Useful Life
8
15
2

Amortization Method

Accelerated
 Straight-line
 Straight-line

Estimated Fair Value
$

42.0 
10.2 
3.0 
55.2 

$

F-23

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Goodwill is calculated as the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising
from other assets acquired that could not be individually identified and separately recognized. Specifically, the goodwill recorded as part of the OnTheMarket
Acquisition includes, but is not limited to: (i) the expected synergies and other benefits that the Company believes will result from combining its operations
with international operations and (ii) any intangible assets that do not qualify for separate recognition, such as the assembled workforce. The $62.8 million of
goodwill recorded as part of the acquisition is associated with the Company's International operating segment, of which none is expected to be deductible for
income tax purposes. Transaction costs associated with the OnTheMarket Acquisition were $11.0 million.

Business Immo

In April 2022, the Company acquired Business Immo, a leading commercial real estate news service provider in France, for €5.8 million ($6.3 million),
net of cash acquired and the assumption of outstanding debt. As part of the acquisition, the Company recorded goodwill and intangible assets of $7.1 million
and $3.9 million, respectively. The net assets of Business Immo were recorded at their estimated fair value. The Company retired the assumed debt in the
second quarter of 2022. The net assets of Business Immo were recorded at their estimated fair value. The Company retired the assumed debt in the second
quarter of 2022.

BureauxLocaux

In October 2021, CoStar UK acquired BureauxLocaux, a commercial real estate digital marketplace in France, for a base purchase price of €35.0 million
($40.6 million) in cash, subject to customary working capital and other post-closing adjustments which were settled in the fourth quarter of 2021. As part of
the  acquisition,  the  Company  recorded  goodwill  and  intangible  assets  of  $27.4  million  and  $18.3  million,  respectively,  in  the  Company's  International
operating segment. The net assets of BureauxLocaux were recorded at their estimated fair value.

Homes.com

In  May  2021,  the  Company  closed  the  Homes.com  Acquisition,  in  which  the  Company  acquired  all  of  the  issued  and  outstanding  equity  interests  in
Homes Group for a purchase price of $150.0 million in cash, subject to customary working capital and other post-closing adjustments which resulted in total
consideration  of  $152.2  million.  Homes  Group  operates  Homes.com,  a  residential  marketplace  hosted  on  the  website  Homes.com  and  mobile  apps  that
provided real estate advertising and marketing services. In November 2022 CoStar Group integrated the operations of Homes.com and Homesnap.

The following table summarizes the amounts recorded for acquired assets and assumed liabilities recorded at their fair values as of the acquisition date (in

millions):

Cash and cash equivalents
Accounts receivable
Lease right-of-use assets
Goodwill
Intangible assets
Deferred income taxes, net
Lease liabilities
Deferred revenue
Other assets and liabilities

$

Final: May 24, 2021
—
1.
0.4

91.
53.4
7.
(0.4
(1.5
(1.3
152.2

Fair value of identifiable net assets acquired

$

The net assets of Homes Group were recorded at their estimated fair values. In valuing the acquired assets and assumed liabilities, fair value estimates
were based primarily on future expected cash flows, market rate assumptions for contractual obligations and appropriate discount rates. The estimated fair
value of the customer base assets incorporated significant assumptions that had a material impact on the estimated fair value, such as discount rates, projected
revenue growth rates, customer attrition rates and profit margins.

F-24

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table summarizes the fair values (in millions) of the identifiable intangible assets acquired in the Homes.com Acquisition included in the

Company's North America operating segment, their related estimated useful lives (in years) and their respective amortization methods:

Customer base
Trade name
Technology

Total intangible assets

Estimated Fair Value
$

32.0 
21.0 
0.4 
53.4 

$

Estimated Useful Life
8
15
2

Amortization Method

Accelerated
 Straight-line
 Straight-line

Goodwill is calculated as the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising
from other assets acquired that could not be individually identified and separately recognized. Specifically, the goodwill recorded as part of the Homes.com
Acquisition includes but is not limited to: (i) the expected synergies and other benefits that the Company believes will result from combining its operations
with Homes.com operations and (ii) any intangible assets that do not qualify for separate recognition, such as the assembled workforce. The $91.9 million of
goodwill recorded as part of the acquisition is associated with the Company's North America operating segment, of which $20.0 million is expected to be
deductible for income tax purposes.

Transaction  costs  associated  with  the  Homes.com  Acquisition  were  not  material.  The  Company  paid  $5.0  million  into  a  cash  escrow  account  for  stay
bonuses  for  certain  Homes.com  employees  and  recognized  compensation  expense  for  the  stay  bonus  over  the  six-month  post-combination  period.  Upon
acquisition, the Company assessed the probability it would be required to pay certain state tax liabilities and recorded an accrual of $6.6 million determined in
accordance with the provisions of ASC 450, Contingencies, as the fair value was not determinable. Landmark has agreed to indemnify the Company for tax
liabilities related to periods prior to the acquisition and an indemnification asset was established for $6.6 million in the purchase price allocation.

Pro Forma Financial Information (unaudited)

The  unaudited  pro  forma  financial  information  presented  below  reflects  the  consolidated  results  of  operations  of  the  Company  assuming  the

OnTheMarket Acquisition had taken place on January 1, 2022 and was as follows (in millions, except per share data):

Revenue
Net income
Net income per share - basic
Net income per share - diluted

Year Ended
December 31,

2023

2022

$
$
$
$

2,494.0  $
371.9  $
0.91  $
0.91  $

2,224
361
0.9
0.9

The impact of the OnTheMarket Acquisition on the Company's revenue and net income in the consolidated statements of operations from December 12,

2023 through December 31, 2023 was not material.

F-25

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The unaudited pro forma financial information presented below reflects the consolidated results of operations of the Company assuming the Homes.com

Acquisition had taken place on January 1, 2020 and was as follows (in millions, except per share data):

Revenue
Net income
Net income per share - basic
Net income per share - diluted

Year Ended
December 31,
2021

$
$
$
$

1,962.
286.
0.74
0.7

The  unaudited  pro  forma  financial  information  for  all  periods  presented  includes  amortization  charges  from  acquired  intangible  assets,  retention
compensation,  as  referenced  above,  and  the  related  tax  effects,  along  with  certain  other  accounting  effects,  but  excludes  the  impacts  of  any  expected
operational synergies. The unaudited pro forma financial information, as presented above, is for informational purposes only and is not necessarily indicative
of the results of operations that would have been achieved if the acquisitions had not taken on place on the dates listed above.

The impact of the Homes.com Acquisition on the Company's revenues and net income in the consolidated statements of operations from May 24, 2021

through December 31, 2021 was an increase of $13.6 million and a decrease of $23.5 million, respectively.

The pro forma financial information of the BureauxLocaux Acquisition and Business Immo Acquisition was not material.

6.    INVESTMENTS AND FAIR VALUE MEASUREMENTS

Fair value is defined as the price that would be received in the sale of an asset or paid to transfer a liability in an orderly transaction between market
participants.  There  is  a  three-tier  fair  value  hierarchy,  which  categorizes  the  inputs  used  in  measuring  fair  value.  These  tiers  include:  Level  1,  defined  as
observable inputs such as quoted prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than quoted prices in active markets
that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an
entity to develop its own assumptions.

The Company's financial assets comprise Level 1 cash equivalents with original maturities of three months or less in the amount of $5.1 billion and $4.8

billion as of December 31, 2023 and 2022, respectively. The Company had no Level 2 or Level 3 financial assets measured at fair value.

The Company holds other financial instruments, including cash deposits, accounts receivable, accounts payable, accrued expenses and Senior Notes. The
carrying  value  for  such  financial  instruments,  other  than  the  Senior  Notes,  each  approximated  their  fair  values  as  of  December  31,  2023  and  2022.  The
estimated fair value of the Company's outstanding Senior Notes using quoted prices from the over-the-counter markets, considered Level 2 inputs, was $0.9
billion and $0.8 billion as of December 31, 2023 and 2022, respectively.

F-26

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

7.    LEASES

The Company has operating and finance leases for its office facilities, data centers, and vehicles. The Company's leases have remaining terms up to eight
years. The leases contain various renewal and termination options. The period that is subject to an option to extend the lease is included in the lease term if it
is reasonably certain that the option will be exercised. The period that is subject to an option to terminate the lease is included if it is reasonably certain that
the option will not be exercised.

Lease costs related to the Company's operating and finance leases included in the consolidated statements of operations were as follows (in millions):

Operating lease costs:
Cost of revenues
Software development
Selling and marketing (excluding customer base amortization)
General and administrative

Total operating lease costs
Finance lease costs:

Amortization of ROU assets
Interest on lease liabilities

Total finance lease costs
Total lease costs

Year Ended December 31,
2022

2023

2021

$

$

10.0  $
6.3 
15.4 
4.0 
35.7 

0.8 
0.2 
1.0 
36.7  $

8.4  $
7.2 
12.6 
5.4 
33.6 

— 
— 
— 
33.6  $

10
6
11
5
34

—
—
—

34

Finance lease costs primarily relate to vehicles used by the Company's research teams, and the amortization of the ROU assets are recorded to cost of
revenue in the consolidated statements of operations. The impact of lease costs related to short-term leases was not material for the years ended December 31,
2023, 2022 and 2021.

F-27

 
 
 
 
Balance Sheet Location

Year Ended December 31,
2022
2023

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Supplemental balance sheet information related to operating leases was as follows ($ in millions):

Balance
Operating lease liabilities
Less: imputed interest
Present value of lease liabilities
Less: current portion of lease liabilities
Long-term lease liabilities

Lease liabilities
Lease and other long-term liabilities

Weighted-average remaining lease term in years
Weighted-average discount rate
ROU Assets

Lease right-of-use assets

Finance lease liabilities
Less: imputed interest
Present value of lease liabilities
Less: current portion of lease liabilities
Long-term lease liabilities

Lease liabilities
Lease and other long-term liabilities

Weighted-average remaining lease term in years
Weighted-average discount rate
ROU Assets

Property and equipment, net

Supplemental cash flow information related to leases was as follows (in millions):

$

$

$

$

$

$

109.9 
(7.0)
102.9 
36.9 
66.0 

3.9
3.6 %

79.8 

14.6 
(1.6)
13.0 
3.1 
9.9 

$

$

$

$

$

3.8
7.8 %

10.8 

$

118.3
(6.2)
112.1
36.0
76.1

3.
3.1
80.4

—
—
—
—
—

—
—

Cash paid for amounts included in the measurement of lease liabilities:

Operating cash flows used in operating leases
Operating cash flows used in finance leases
Financing cash flows used in finance leases

ROU assets obtained in exchange for lease new obligations:

Operating leases
Finance leases

F-28

2023

Year Ended December 31,
2022

2021

$
$
$

$
$

44.9  $
0.2  $
0.7  $

29.1  $
13.6  $

41.6  $
—  $
—  $

20.0  $
—  $

37

—
—

34

—

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

8.    PROPERTY AND EQUIPMENT

Property and equipment consists of the following (in millions):

Leasehold improvements
Furniture, office equipment and vehicles
Computer hardware and software
Aircrafts
Land
Buildings
Property and equipment, gross
Accumulated depreciation and amortization

Property and equipment, net

December 31,

2023

2022

$

$

87.8  $
73.4 
56.3 
44.2 
52.2 
263.8 
577.7 
(105.5)
472.2  $

108
52
43
44
52
105
406
(85
321

Costs capitalized in connection with the expansion of our Richmond, Virginia campus were included in Buildings in the above table as of December 31,
2023. Depreciation expense for property and equipment was approximately $33.8 million, $29.1 million and $29.0 million, for the years ended December 31,
2023, 2022 and 2021, respectively. For the years ended December 31, 2023 and 2022, the Company removed $14.1 million and $27.6 million, respectively, of
property  and  equipment  that  was  fully  depreciated  from  property  and  equipment,  gross  and  accumulated  depreciation  and  amortization,  which  had  no  net
impact on the Company's financial results.

In August 2022, the Company entered into an agreement to sell an aircraft subject to customary condition and inspection terms. The sale of the aircraft
closed in October 2022 for cash consideration of $24.9 million. The Company recorded a gain on the sale of the aircraft of $3.3 million, which was recorded
to general and administrative expenses in the consolidated statements of operations. The aircraft related to the North America segment.

9.    GOODWILL

The changes in the carrying amount of goodwill by operating segment consist of the following (in millions):

Goodwill, December 31, 2021

Acquisitions, including measurement period adjustments
Effect of foreign currency translation

(1)

Goodwill, December 31, 2022

Acquisitions, including measurement period adjustments
Effect of foreign currency translation

Goodwill, December 31, 2023
__________________________

North America

International

Total

$

$

2,145.8  $
3.4 
— 
2,149.2 
— 
— 
2,149.2  $

175.2  $
7.1 
(16.7)
165.6 
62.8 
8.6 
237.0  $

2,321.
10.
(16.
2,314.
62.
8.
2,386.

(1)

 North America goodwill recorded during the year ended December 31, 2022 relates to a measurement period adjustment for income taxes for Homes.com of $3.4 million. International goodwill

recorded in connection with the Business Immo Acquisition was $7.1 million.

(2)

 International goodwill generated during the year ended December 31, 2023 from the OnTheMarket Acquisition was $62.8 million.

Goodwill generated from acquisitions completed in 2023 and 2022 was not deductible for tax purposes.

No impairments of the Company's goodwill were recognized during each of the years ended December 31, 2023, 2022 and 2021.

10.    INTANGIBLE ASSETS

Intangible assets consist of the following (in millions, except amortization period data):

F-29

 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Acquired technology and data
Accumulated amortization
Acquired technology and data, net

Acquired customer base
Accumulated amortization
Acquired customer base, net

Acquired trade names and other intangible assets
Accumulated amortization
Acquired trade names and other intangible assets, net

December 31,

2023

2022

$

36.3  $
(21.0)
15.3 

509.5 
(330.7)
178.8 

258.9 
(139.3)
119.6 

40.4 
(20.7)
19.7 

464.2 
(287.0)
177.2 

247.4 
(115.0)
132.4 

Weighted-
Average
Amortization
Period
(in years)
5

10

13

Intangible assets, net

$

313.7  $

329.3 

Amortization expense for intangible assets was approximately $73.7 million, $102.6 million and $103.6 million for the years ended December 31, 2023,
2022 and 2021, respectively. For the years ended December 31, 2023, 2022 and 2021, the Company removed $7.4 million, $87.7 million, and $171.0 million,
respectively, of intangible assets that were fully amortized from the acquired intangible assets and accumulated amortization, which had no net impact on the
Company's financial results.

In the aggregate, the Company expects the future amortization expense for intangible assets existing as of December 31, 2023 to be approximately $70.8

million, $54.8 million, $43.3 million, $34.7 million and $30.8 million for the years ending December 31, 2024, 2025, 2026, 2027 and 2028, respectively.

Intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of such assets may not be
recoverable. No impairments of the Company's intangible assets were recognized during each of the years ended December 31, 2023, 2022 and 2021. The
Company decided to eliminate usage fees related to agent access to a Homesnap product charged to a specific customer class. This resulted in an acceleration
of $16.3 million of amortization expense in 2022 for acquired customer base for this customer class.

11.    LONG-TERM DEBT

The table below presents the components of outstanding debt (in millions):

2.800% Senior Notes due July 15, 2030
2020 Credit Agreement, due July 1, 2025
Total face amount of long-term debt
Senior Notes unamortized discount and issuance costs

Long-term debt, net

Senior Notes

December 31,

2023

2022

$

$

1,000.0  $
— 
1,000.0 
(9.5)
990.5  $

1,000

—

1,000
(10
989

On July 1, 2020, the Company issued $1.0 billion aggregate principal amount of 2.800% Senior Notes due July 15, 2030. The Senior Notes were sold to a
group  of  financial  institutions  as  initial  purchasers  who  subsequently  resold  the  Senior  Notes  to  non-U.S.  persons  pursuant  to  Regulation  S  under  the
Securities Act, and to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act at a purchase price equal
to 99.921% of their principal amount. Interest on the Senior Notes is payable semi-annually in arrears on January 15 and July 15. The Senior Notes may be
redeemed in whole or in part by the Company (a) at any time prior to April 15, 2030 at a redemption price equal to 100% of the principal amount of the Senior
Notes, plus the Applicable Premium (as calculated in accordance with the indenture governing

F-30

 
 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

the Senior Notes), and any accrued and unpaid interest, if any, on the principal amount of Senior Notes being redeemed to, but excluding, the redemption date,
and (b) on or after April 15, 2030 at a redemption price equal to 100% of the principal amount of the Senior Notes, plus any accrued and unpaid interest, if
any, on the principal amount of Senior Notes being redeemed to, but excluding, the redemption date. The Company’s obligations under the Senior Notes are
guaranteed  on  a  senior,  unsecured  basis  by  the  Company’s  domestic  wholly  owned  subsidiaries  and  the  indenture  governing  the  Senior  Notes  contains
covenants, events of default and other customary provisions with which the Company was in compliance as of December 31, 2023.

Revolving Credit Facility

On July 1, 2020, the Company entered into the 2020 Credit Agreement, which provides for a $750 million revolving credit facility with a term of five
years  (maturing  July  1,  2025)  and  a  letter  of  credit  sublimit  of  $20  million  from  a  syndicate  of  financial  institutions  as  lenders  and  issuing  banks.  A
commitment fee of 0.25% to 0.30% per annum, depending on the Total Leverage Ratio (defined in 2020 Credit Agreement), is payable quarterly in arrears
based  on  the  unused  revolving  commitment.  The  Company  and  the  syndicate  of  lenders  and  issuing  banks  entered  into  the  First  Amendment  of  the  2020
Credit  Agreement  in  May  2023,  which  replaced  LIBOR  as  the  reference  rate  with  Term  SOFR  for  U.S.  dollar  denominated  borrowings,  SONIA  rates  for
Sterling denominated borrowings and EURIBOR for Euro denominated borrowings.

Borrowings under the 2020 Credit Agreement can be on a revolving basis or term basis, not to exceed the remaining term of the facility, and denominated
in U.S. dollars, sterling, euros or other allowed currency at the Company's option, subject to a limit of $250 million U.S. dollar equivalent for non-U.S. dollar
denominated borrowings. Borrowings bear interest at a floating rate which can be, at the Company’s option, either (a) an alternate base rate plus an applicable
rate ranging from 0.50% to 1.25% or (b) a Term SOFR, SONIA rate or EURIBOR (with a floor of 0.0%) for the specified interest period plus an applicable
rate ranging from 1.50% to 2.25%, in each case depending on the Company's Total Leverage Ratio (as defined in the 2020 Credit Agreement). Any borrowing
with a Term SOFR reference rate includes an additional 0.10% credit spread adjustment.

Funds drawn down on the revolving credit facility pursuant to the 2020 Credit Agreement may be used for working capital and other general corporate
purposes of the Company and its restricted subsidiaries. The obligations under the 2020 Credit Agreement are guaranteed by each of the Company’s current
and future direct or indirect wholly owned restricted domestic subsidiaries, other than certain excluded subsidiaries, in each case subject to certain exceptions,
pursuant to guarantee agreements.

The 2020 Credit Agreement includes covenants, including ones that, subject to certain exceptions, restrict the ability of the Company and its subsidiaries
to (i) incur additional indebtedness, (ii) incur liens, (iii) pay dividends or make certain other restricted payments, investments or acquisitions, (iv) merge or
consolidate with another person, and (v) sell, assign, lease or otherwise dispose of all or substantially all of our assets. In May 2023, the Company amended
the  2020  Credit  Agreement  to  replace  LIBOR  as  the  reference  rate  with  Term  SOFR  for  U.S.  dollar-denominated  borrowings,  SONIA  rates  for  Sterling-
denominated borrowings and EURIBOR for Euro-denominated borrowings.

As of December 31, 2023, the Company is in a Covenant Suspension Period. During any Covenant Suspension Period, the Company will not be subject to
certain of these covenants such as restrictions on the ability to incur indebtedness. The 2020 Credit Agreement also requires the Company to maintain a Total
Leverage Ratio (as defined in the 2020 Credit Agreement) not exceeding 4.50 to 1.00. The Company was in compliance with the covenants in the 2020 Credit
Agreement as of December 31, 2023.

As of December 31, 2023, the Company had no amounts drawn under this facility.

The Company had $1.6 million and $2.7 million of deferred debt issuance costs as of December 31, 2023 and 2022, respectively, in connection with the

2020 Credit Agreement. These amounts are included in deposits and other assets on the Company's consolidated balance sheets.

F-31

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

For the years ended December 31, 2023, 2022 and 2021, the Company recognized interest expense as follows (in millions):

Interest on outstanding borrowings
Amortization of Senior Notes discount and issuance costs
Interest capitalized for construction in process
Commitment fees and other

Total interest expense

2023

Year Ended December 31,
2022

2021

$

$

28.0  $
2.4 
(1.6)
2.6 
31.4  $

28.0  $
2.3 
— 
2.0 
32.3  $

28
2
—
2
32

F-32

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

12.    INCOME TAXES

The components of the provision for income taxes attributable to operations consist of the following (in millions):

Year Ended December 31,
2022

2023

2021

Current:

Federal
State
Foreign
Total current
Deferred:

Federal
State
Foreign

Total deferred

Total provision for income taxes

The components of deferred tax assets and liabilities consist of the following (in millions):

Deferred tax assets:

Allowance for credit losses
Accrued compensation
Stock compensation
Net operating losses
Accrued reserve and other
Lease liabilities
Capitalized research and development costs
Research and development credits

Total deferred tax assets, prior to valuation allowance

Valuation allowance

Total deferred tax assets, net of valuation allowance

Deferred tax liabilities:

Deferred commission costs, net
Lease right-of-use assets
Prepaid expenses
Property and equipment, net
Intangible assets, net

Total deferred tax liabilities

Net deferred tax liabilities

$

$

126.3  $
36.6 
0.9 
163.8 

(31.7)
(2.9)
(2.6)
(37.2)
126.6  $

$

116.3  $
31.2 
0.7 
148.2 

(20.4)
(9.6)
(1.2)
(31.2)
117.0  $

61.
24.
1.
87.

22.
8.
(7.2
24.
111.

December 31,

2023

2022

5.8  $
11.9 
15.3 
34.7 
5.8 
21.8 
92.4 
4.5 
192.2 

(9.0)
183.2 

(42.3)
(16.0)
(4.1)
(25.1)
(128.1)
(215.6)

3.
4.
20.
26.
6.
26.
45.
6.
139.

(5.
134.

(36.
(18.
(3.
(25.
(117.
(201.

(66.

$

(32.4) $

For  both  the  years  ended  December  31,  2023  and  2022,  the  Company  has  not  recognized  deferred  tax  liabilities  for  temporary  differences  related  to
investments in foreign subsidiaries that were deemed permanently reinvested. Determination of the amount of unrecognized deferred income tax liabilities on
these earnings is not practicable because such liability, if any, depends on certain circumstances existing if and when remittance occurs. A deferred tax liability
will be recognized if and when the Company no longer plans to permanently reinvest these undistributed earnings.

As of both December 31, 2023 and 2022, a valuation allowance has been established for certain deferred tax assets due to the uncertainty of realization.

The valuation allowance as of both December 31, 2023 and 2022 includes an allowance for acquired net operating losses and foreign deferred tax assets.

F-33

 
 
 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company established the valuation allowance because it is more likely than not that a portion of the deferred tax asset for certain items will not be
realized based on the weight of available evidence. A valuation allowance was established for the foreign deferred tax assets due to the cumulative loss in
recent years in those jurisdictions. The Company has not had sufficient taxable income historically to utilize the foreign deferred tax assets, and it is uncertain
whether  the  Company  will  generate  sufficient  taxable  income  in  the  future  to  utilize  the  deferred  tax  assets.  The  Company  has  established  a  valuation
allowance for certain acquired net operating losses where Section 382 limitations will impact the ability of the Company to utilize the net operating losses
before they expire.

The Company’s change in valuation allowance was an increase of approximately $3.8 million for the year ended December 31, 2023 and a decrease of
approximately $0.5 million for the year ended December 31, 2022. The increase for the year ended December 31, 2023 was primarily due to an increase in
foreign net operating loss deferred tax assets for which a full valuation allowance has been established. The decrease for the year ended December 31, 2022
was primarily due to an international restructuring.

The  Company  had  U.S.  income  before  income  taxes  of  approximately  $526.7  million,  $493.2  million  and  $408.8  million  for  the  years  ended
December  31,  2023,  2022  and  2021,  respectively. The  Company  had  foreign  losses  before  income  taxes  of  approximately  $25.4  million,  $6.7  million  and
$4.8 million for the years ended December 31, 2023, 2022 and 2021, respectively.

The Company’s provision for income taxes resulted in effective tax rates that varied from the statutory federal income tax rate as follows (in millions):

Expected federal income tax provision at statutory rate
State income taxes, net of federal benefit
Increase (decrease) in valuation allowance
Research credits
Excess tax benefit
Tax reserves
Nondeductible compensation
International restructuring
Other adjustments

Income tax expense

Year Ended December 31,
2022

2023

2021

$

$

105.3  $
27.4 
1.9 
(20.2)
(5.9)
4.2 
8.8 
0.1 
5.0 
126.6  $

102.1  $
21.5 
(0.5)
(17.5)
(1.8)
1.5 
11.4 
(3.9)
4.2 
117.0  $

84.
21.
(5.0
(13.
(10.
(12.
10.
34.
2.
111.

The  Company  has  net  operating  loss  carryforwards  for  international  income  tax  purposes  of  approximately  $77.3  million  that  do  not  expire.  The
Company has federal net operating loss carryforwards of approximately $71.3 million that begin to expire in 2033, state net operating loss carryforwards with
a tax value of approximately $0.4 million that begin to expire in 2033 and state income tax credit carryforwards with a tax value of approximately $8.0 million
primarily  relating  to  state  research  and  development  credits  and  the  D.C.  qualified  high  technology  company  tax  credit  that  begin  to  expire  in  2024.  The
Company  realized  a  cash  benefit  relating  to  the  use  of  its  tax  loss  carryforwards  of  approximately  $5.9  million,  $12.6  million  and  $14.1  million  in
December 31, 2023, 2022 and 2021, respectively.

F-34

 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table summarizes the activity related to the Company’s unrecognized tax benefits (in millions):

Unrecognized tax benefit as of December 31, 2020

Increase for current year tax positions
Decrease for prior year tax positions
Decrease for settlements with taxing authorities
Expiration of the statute of limitation for assessment of taxes

Unrecognized tax benefit as of December 31, 2021

Increase for current year tax positions
Increase for prior year tax positions
Expiration of the statute of limitation for assessment of taxes

Unrecognized tax benefit as of December 31, 2022

Increase for current year tax positions
Increase for prior year tax positions
Expiration of the statute of limitation for assessment of taxes

Unrecognized tax benefit as of December 31, 2023

$

$

28
3
(5.
(9.
(1.
14
3
0
(2.
16
4
1
(2.
19

Approximately $19.9 million and $16.2 million of the unrecognized tax benefits as of December 31, 2023 and 2022, respectively, would favorably affect
the annual effective tax rate if recognized in future periods. The increase for current year tax positions of $4.4 million and increase for prior year tax positions
of  $1.7  million  for  the  year  ended  December  31,  2023  were  primarily  attributable  to  research  credits  and  state  apportionment  reserves.  The  decrease  for
expiration of the statute of limitation of $2.4 million for the year ended December 31, 2023 was attributable to research credits. The Company recognized
$0.7  million,  recognized  $0.1  million  and  reversed  $0.4  million  for  interest  and  penalties  in  its  consolidated  statements  of  operations  for  the  years  ended
December 31, 2023, 2022 and 2021, respectively. The Company had liabilities of $1.4 million, $0.7 million, and $0.6 million for interest and penalties in its
consolidated  balance  sheets  as  of  December  31,  2023,  2022  and  2021,  respectively.  The  Company  does  not  anticipate  the  amount  of  the  unrecognized  tax
benefits will change significantly over the next 12 months.

The Company is subject to taxation in the U.S. federal jurisdiction and various states and foreign jurisdictions. The Company’s federal income tax returns
for  tax  years  2015  and  2020  through  2022  remain  open  to  examination.  Most  of  the  Company’s  state  income  tax  returns  for  tax  years  2020  through  2022
remain open to examination. For states that have a four-year statute of limitations, the state income tax returns for tax years 2019 through 2022 remain open to
examination. The Company’s U.K. income tax return for tax year 2022 remains open to examination. The Company believes that an adequate provision has
been made for any adjustments that may result from tax examinations.

13.    COMMITMENTS AND CONTINGENCIES

The  following  summarizes  the  Company's  significant  contractual  obligations,  including  related  payments  due  by  period,  as  of  December  31,  2023  (in

millions):

Year Ending December 31,
2024
2025
2026
2027
2028
Thereafter

Total

Operating lease
obligations

Finance lease
obligations

Long-term debt
principal
payments

Long-term debt
principal interest
payments

$

$

39.0  $
25.4 
15.1 
13.1 
10.7 
6.6 
109.9  $

3.9  $
3.9 
3.9 
2.9 
— 
— 
14.6  $

—  $
— 
— 
— 
— 
1,000.0 
1,000.0  $

28.0 
28.0 
28.0 
28.0 
28.0 
56.0 
196.0 

The  Company  leases  office  facilities  under  various  non-cancelable  operating  leases,  as  well  as,  data  centers,  and  vehicles  under  finance  lease

arrangements. The leases contain various renewal options.

F-35

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

See Note 7 for further discussion of the Company's lease commitments.

Currently, and from time to time, the Company is involved in litigation incidental to the conduct of its business. The Company records a provision for a
liability  when  it  is  both  probable  that  a  liability  has  been  incurred  and  the  amount  can  be  reasonably  estimated.  While  it  is  reasonably  possible  that  an
unfavorable  outcome  may  occur  as  a  result  of  one  or  more  of  the  Company’s  current  litigation  matters,  at  this  time  management  has  concluded  that  the
resolutions  of  these  matters  are  not  expected  to  have  a  material  effect  on  the  Company's  consolidated  financial  position,  future  results  of  operations  or
liquidity. Legal defense costs are expensed as incurred.

F-36

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

14.    SEGMENT REPORTING

Segment Information

The Company manages its business geographically in two operating segments, with the primary areas of measurement and decision-making being North
America, which includes the U.S. and Canada, and International, which primarily includes Europe, Asia-Pacific and Latin America. Management relies on an
internal management reporting process that provides revenue and operating segment EBITDA. Management believes that operating segment EBITDA is an
appropriate measure for evaluating the operational performance of the Company’s operating segments. EBITDA is used by management to internally measure
operating and management performance and to evaluate the performance of the business. However, this measure should be considered in addition to, not as a
substitute for or superior to, income from operations or other measures of financial performance prepared in accordance with GAAP.

Summarized EBITDA information by operating segment consists of the following (in millions):

North America
International

Total EBITDA

The reconciliation of net income to EBITDA consists of the following (in millions):

Net income
Amortization of acquired intangible assets in cost of revenues
Amortization of acquired intangible assets in operating expenses
Depreciation and other amortization
Interest (income) expense, net
Other (income), net
Income tax expense

EBITDA

37

Year Ended December 31,
2022

2023

2021

403.0  $
(13.2)
389.8  $

577.3  $
5.4 
582.7  $

Year Ended December 31,
2022

2023

2021

374.7  $
31.5 
42.2 
33.8 
(213.6)
(5.4)
126.6 
389.8  $

369.5  $
29.0 
73.6 
29.1 
(32.1)
(3.4)
117.0 
582.7  $

557
7
565

292
28
74
29
31
(3
111
565

$

$

$

$

 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Summarized information by operating segment consists of the following (in millions):

Property and equipment, net
North America
International

Total property and equipment, net

Goodwill
North America
International

Total goodwill

Assets
North America
International

Total assets

Liabilities
North America
International

Total liabilities

F-38

December 31,

2023

2022

$

$

$

$

$

$

$

$

465.7  $
6.5 
472.2  $

2,149.2  $
237.0 
2,386.2  $

8,505.5  $
414.2 
8,919.7  $

1,499.7  $
81.4 
1,581.1  $

320
1
321

2,149
165
2,314

8,146
256
8,402

1,486
46
1,532

 
 
 
 
 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

15.    STOCKHOLDER'S EQUITY

Preferred Stock

The Company has 2 million shares of preferred stock, $0.01 par value, authorized for issuance. The Board of Directors may issue the preferred stock from

time to time as shares of one or more classes or series.

Common Stock

The Company has 1.2 billion shares of common stock, $0.01 par value, authorized for issuance. Dividends may be declared and paid on the common
stock, subject in all cases to the rights and preferences of the holders of preferred stock and authorization by the Board of Directors. In the event of liquidation
or  winding  up  of  the  Company  and  after  the  payment  of  all  preferential  amounts  required  to  be  paid  to  the  holders  of  any  series  of  preferred  stock,  any
remaining funds shall be distributed among the holders of the issued and outstanding common stock.

Common Stock Split

At the Company's 2021 Annual Meeting of Stockholders in June 2021, upon the recommendation of the Company's Board of Directors, the Company's
stockholders approved the adoption of the Company's Fourth Amended and Restated Certificate of Incorporation, which increased the total number of shares
of  common  stock  that  the  Company  is  authorized  to  issue  from  60  million  to  1.2  billion.  The  Fourth  Amended  and  Restated  Certificate  of  Incorporation
became effective on June 7, 2021. On June 7, 2021, the Board of Directors approved a ten-for-one stock split of the Company's outstanding shares of common
stock to be effected in the form of a stock dividend. Each stockholder of record on June 17, 2021 received a dividend of nine additional shares of common
stock for each then-held share, distributed after close of trading on June 25, 2021. The par value of the Company's common stock remained $0.01 per share.
All applicable share and per-share amounts in the consolidated financial statements and the accompanying notes have been retroactively adjusted to reflect the
impact of the stock split.

Equity Offerings

On September 20, 2022, the Company completed a public equity offering of 10.7 million shares of common stock at an offering price of $70.38 per share.
Net  proceeds  from  the  public  equity  offering  were  approximately  $745.7  million,  after  deducting  approximately  $4.3  million  of  underwriting  fees,
commissions and other stock issuance costs. On May 28, 2020, the Company completed a public equity offering of 26.3 million shares of common stock for
$65.50 per share. Net proceeds from the public equity offering were approximately $1.7 billion, after deducting approximately $35 million of underwriting
fees, commissions and other stock issuance costs. The Company intends to use the net proceeds from the sale of the securities to fund all or a portion of the
costs of any strategic acquisitions it pursues in the future, to finance the growth of its business and for working capital and other general corporate purposes.
General corporate purposes may include additions to working capital, capital expenditures, repayment of debt, investments in the Company’s subsidiaries and
the repurchase, redemption or retirement of securities, including the Company’s common stock.

F-39

COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS  

16.    NET INCOME PER SHARE

The following table sets forth the calculation of basic and diluted net income per share (in millions, except per share data):

Numerator:

Net income

Denominator:

Denominator for basic net income per share — weighted-average outstanding shares

Effect of dilutive securities:

Stock options, restricted stock awards and restricted stock units
Denominator for diluted net income per share — weighted-average outstanding shares

Net income per share — basic

Net income per share — diluted

Year Ended December 31,
2022

2023

2021

$

$

$

374.7  $

369.5  $

405.3 

1.6 
406.9 

396.3 

1.5 
397.8 

0.92  $

0.92  $

0.93  $

0.93  $

292

392

2
394

0.7

0.7

The  following  table  summarizes  the  shares  underlying  the  unvested  performance-based  restricted  stock  and  anti-dilutive  securities  excluded  from  the

basic and diluted earnings per share calculations (in millions):

Performance-based restricted stock awards
Anti-dilutive securities

17.    EMPLOYEE BENEFIT PLANS

Stock Incentive Plans

Year Ended December 31,
2022

2023

2021

0.2 
0.7 

0.4 
1.0 

0.
0.

In  April  2007,  the  Company’s  Board  of  Directors  adopted  the  CoStar  Group  2007  Stock  Incentive  Plan  (as  amended,  the  “2007  Plan”),  subject  to
stockholder approval, which was obtained on June 7, 2007. In April 2016, the Company’s Board of Directors adopted the CoStar Group 2016 Stock Incentive
Plan (as amended, the “2016 Plan”), subject to stockholder approval, which was obtained on June 9, 2016. All shares of common stock that were authorized
for  issuance  under  the  2007  Plan  that,  as  of  June  9,  2016,  remained  available  for  issuance  under  the  2007  Plan  (excluding  shares  subject  to  outstanding
awards) were rolled into the 2016 Plan and, as of that date, no shares of common stock were available for new awards under the 2007 Plan. The 2007 Plan
continues to govern vested unexercised stock options issued prior to June 9, 2016. Upon the occurrence of a Change of Control, as defined in the 2007 Plan,
all outstanding unexercisable options under the 2007 Plan immediately become exercisable.

The  2016  Plan  provides  for  the  grant  of  stock  options,  restricted  stock,  restricted  stock  units  and  stock  appreciation  rights  to  officers,  employees  and
directors  of  the  Company  and  its  subsidiaries.  Stock  options  granted  under  the  2016  Plan  may  be  non-qualified  or  may  qualify  as  incentive  stock  options.
Except in limited circumstances related to a merger or other acquisition, the exercise price for an option may not be less than the fair market value of the
Company’s common stock on the date of grant. The vesting period for each grant of options, restricted stock, restricted stock units and stock appreciation
rights under the 2016 Plan is determined by the Board of Directors or a committee thereof and is generally three to four years, subject to minimum vesting
periods for restricted stock and restricted stock units of at least one year. In some cases, vesting of awards under the 2016 Plan may be based on performance
conditions. The Company initially reserved approximately 22.7 million shares of common stock for issuance under the 2016 Plan, which included shares of
common stock that were authorized and remained available for issuance under the 2007 Plan as of June 9, 2016. Any shares of common stock subject to (a)
outstanding awards under the 2007 Plan as of June 9, 2016 or (b) outstanding awards under the 2016 Plan after June 9, 2016, that cease for any reason to be
subject to such awards (other than by reason of exercise or settlement of the awards to the extent they are exercised or settled in vested and nonforfeitable
shares) will become authorized and unissued under the 2016 Plan. Pursuant to the terms of the 2016 Plan, all amounts reserved or issued under the plan were
adjusted to reflect the Company’s ten-for-one common stock split. Unless terminated sooner, the 2016 Plan will terminate in June 2026, but will continue to
govern

F-40

 
 
 
 
 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

unexercised and unexpired awards issued under the 2016 Plan prior to that date. Approximately 13.4 million shares were available for future grant under the
2016 Plan as of December 31, 2023.

At  December  31,  2023,  there  was  approximately  $115.3  million  of  unrecognized  compensation  cost  related  to  stock  incentive  plans,  net  of  estimated
forfeitures,  which  the  Company  expects  to  recognize  over  a  weighted-average-period  of  2.4  years.  The  income  tax  benefit  realized  from  stock-based
compensation was $6.8 million, immaterial  and $2.4 million for the years ended December 31, 2023, 2022 and 2021, respectively.

See Notes 2 and 12 for further discussion of stock-based compensation expense and income taxes, respectively.

Stock Options

Option activity was as follows:

Outstanding at December 31, 2020

Granted

Exercised

Outstanding at December 31, 2021

Granted

Exercised

Canceled or expired

Outstanding at December 31, 2022

Granted

Exercised

Canceled or expired

Outstanding at December 31, 2023

Exercisable at December 31, 2021

Exercisable at December 31, 2022

Exercisable at December 31, 2023

Number of
Shares

Range of
Exercise Price

Weighted-
Average
Exercise
Price

Weighted-
Average
Remaining
Contract
Life (in years)

2,023,100 

159,000 

(206,000)

1,976,100 

202,100 

— 

— 

2,178,200 

140,800 

(419,340)

— 

1,899,660 

1,473,420 

1,766,070 

1,571,105 

$10.22 - $66.65

$91.98

$20.49 - $39.82

$10.22 - $91.98

$67.29

$10.22 - $91.98

$76.78

$10.22 - $34.21

$20.49 - $91.98

$10.22 - $66.65

$10.22 - $91.98

$20.49 - $91.98

$

$

$

$

$

$

$

$

$

$

$

$

6.99

6.24

5.60

34.18 

91.98 

30.78 

39.18 

67.29 

41.79 

76.78 

17.77 

49.69 

5.53

29.55 

34.40 

44.32 

5.59

4.96

4.93

$

$

$

$

$

$

$

Aggregate
Intrinsic
Value
(in millions)

117.8 

80.8 

79.6 

72.4 

72.9 

76.5 

68.1 

The aggregate intrinsic value of outstanding options is calculated as the difference between (i) the closing price of the common stock at the end of the
period and (ii) the exercise price of the underlying awards, multiplied by the number of outstanding options as of the end of the period that had an exercise
price less than the closing price on that date. The aggregate intrinsic value of options exercised, determined as of the exercise date, was approximately $24.3
million and $11.0 million for the years ended December 31, 2023 and 2021, respectively. No options were exercised in the year ended December 31, 2022.

The Company estimated the fair value of each option granted on the date of grant using the Black-Scholes option-pricing model, using the assumptions in

the following table:

Dividend yield

Expected volatility

Risk-free interest rate

Expected life (in years)

Weighted-average grant date fair value

Year Ended December 31,

2023

2022

2021

0 %

35 %

3.96 %

5

0 %

31 %

1.89 %

5

0 %

30 %

0.56 %

5

$

28.87 

$

20.43 

$

25.09 

F-41

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The  expected  dividend  yield  is  determined  based  on  the  Company's  past  cash  dividend  history  and  anticipated  future  cash  dividend  payments.  The
Company  has  never  declared  nor  paid  any  dividends  on  its  common  stock  and  does  not  anticipate  paying  any  dividends  on  its  common  stock  during  the
foreseeable future, but intends to retain any earnings for future growth of its business. Expected volatility is calculated based on historical volatility of the
daily closing price of the Company's common stock over a period consistent with the expected life of the options granted. The risk-free interest rate is based
on  the  U.S.  Treasury  rate  with  terms  similar  to  the  expected  life  of  the  options  granted.  The  expected  life  for  the  options  is  determined  based  on  multiple
factors, including historical employee behavior patterns of exercising options and post-employment termination behavior as well as expected future employee
option exercise patterns.

The following table summarizes information regarding options outstanding at December 31, 2023:

Range of
Exercise Price

$20.49 - $27.35

$27.36 - $37.02

$37.03 - $53.24

$53.25 - $66.97

$66.98 - $91.98

 Options Outstanding

Weighted-Average
Remaining
Contractual Life
(in years)

 Number of
Shares

 Options Exercisable

Weighted-
Average
Exercise Price

Number of
Shares

Weighted-
Average 
Exercise Price

346,000 

354,090 

385,670 

312,000 

501,900 

1,899,660 

3.16 $

4.16 $

5.10 $

6.10 $

8.09 $

5.53 $

20.49 

34.21 

39.82 

66.65 

77.77 

49.69 

346,000  $

354,090  $

385,670  $

312,000  $

173,345  $

1,571,105  $

20.49 

34.21 

39.82 

66.65 

82.39 

44.32 

Restricted Stock Awards

The  Compensation  Committee  of  the  Board  of  Directors  of  the  Company  historically  approved  grants  of  restricted  common  stock  to  employees  and
directors  of  the  Company  that  vest  over  a  specific  service  period  and  to  executive  officers  that  vest  based  on  the  achievement  of  certain  performance
conditions, primarily, the achievement of a three-year cumulative revenue goal established at the grant date. The grant of awards with performance conditions
supports the Company’s goal of aligning executive incentives with long-term stockholder value and ensuring that executive officers have a continuing stake in
the long-term success of the Company.

The vesting of restricted common stock is subject to continuing employment requirements. Certain performance-based restricted common stock awards
are also subject to a market condition such that the actual number of shares that vest at the end of the respective three-year period is determined based on the
Company’s  achievement  of  performance  goals  and  an  established  Company  specific  TSR  factor  relative  to  the  S&P  500  Index  over  the  same  three-year
performance period. At the end of the three-year performance period, if the performance condition is achieved at or above the pre-established threshold, the
number of shares earned is further adjusted by a TSR payout percentage, which ranges between 80% and 120%, based on the Company’s TSR performance
relative to that of S&P 500 Index over the respective three-year period.

The  Company  estimates  the  fair  value  of  its  equity  awards  with  both  a  performance  and  market  condition  on  the  date  of  grant  using  a  Monte-Carlo
simulation valuation model. This pricing model uses multiple simulations to evaluate the probability of achieving the market condition to calculate the fair
value of the awards. Expense is only recorded for awards that are expected to vest, net of estimated forfeitures. The assumptions used to estimate the fair value
of awards with both a performance and a market condition were as follows:

Dividend yield

Expected volatility

Risk-free interest rate

Expected life (in years)

Weighted-average grant date fair value

Year Ended December 31,

2023

2022

2021

0 %

37 %

4.31 %

3

0 %

34 %

1.71 %

3

0 %

42 %

0.20 %

3

$

81.58 

$

71.19 

$

99.73 

F-42

 
 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The  expected  dividend  yield  is  determined  based  on  the  Company's  past  cash  dividend  history  and  anticipated  future  cash  dividend  payments.  The
Company  has  never  declared  nor  paid  any  dividends  on  its  common  stock  and  does  not  anticipate  paying  any  dividends  on  its  common  stock  during  the
foreseeable future, but intends to retain any earnings for future growth of its business. Expected volatility is calculated based on historical volatility of the
daily closing price of the common stock of the companies within the S&P 500 Index over a period consistent with the expected life of the awards. The risk-
free interest rate is based on the U.S. Treasury rate with terms similar to the expected life of the awards. The expected life is consistent with the performance
measurement period of the awards.

As of December 31, 2023, the Company determined that it was probable that at least the minimum performance goals associated with restricted stock
awards with performance and market conditions granted during 2023, 2022 and 2021 would be met by their forfeiture dates. The Company recorded a total of
approximately $13.6 million, $11.9 million and $8.0 million of stock-based compensation expense related to restricted stock awards with performance and
market  conditions  for  the  years  ended  December  31,  2023,  2022  and  2021,  respectively.  As  of  December  31,  2023,  the  Company  expects  to  record  an
aggregate  stock-based  compensation  expense  of  approximately  $14.0  million  for  restricted  stock  awards  with  performance  and  market  conditions  over  the
periods 2024, 2025 and 2026.

The following table presents unvested restricted stock awards activity for the year ended December 31, 2023:

Unvested restricted stock awards at December 31, 2022

Granted
Vested
Canceled

Unvested restricted stock awards at December 31, 2023

Restricted Stock Units

Restricted Stock Awards — without
Market Condition

Restricted Stock Awards — with
Market Condition

Number of
Shares

Weighted-Average
Grant Date
Fair Value per
Share

Number of
Shares

Weighted-Avera
Grant Date
Fair Value per
Share

2,061,894  $
1,096,446  $
(787,883) $
(230,546) $
2,139,911  $

67.15 
73.27 
66.51 
68.58 

70.38 

620,880  $
283,440  $
(90,408) $
(132,792) $
681,120  $

80.5
81.5
72.6
72.6

83.5

The following table presents unvested restricted stock units activity for the year ended December 31, 2023:

Unvested restricted stock units at December 31, 2022

Granted
Vested
Canceled

Unvested restricted stock units at December 31, 2023

Management Stock Purchase Plan

Number of
Units

Weighted-Avera
Grant Date
Fair Value per
Share

21,560  $
10,465  $
(8,129) $
(977) $
22,919  $

65.2
70.7
65.7
68.3

67.4

The Board of Directors adopted the Company’s Management Stock Purchase Plan in December 2017 with the intent of providing selected key employees
of the Company and its subsidiaries, including the Company's executive officers, the opportunity to defer a portion of their cash incentive compensation and to
align management and stockholder interests through awards of DSUs under the MSPP and awards of Matching RSUs issued under the 2016 Plan. Under this
plan  participants  are  permitted  to  elect  to  defer  up  to  100%  of  their  annual  incentive  bonus  or  commissions  earned  during  the  year  by  submitting  an
irrevocable  election  in  accordance  with  Section  409A  of  the  Internal  Revenue  Code,  as  amended.  On  the  date  the  incentive  bonus  or  commission  would
otherwise  be  paid  in  cash  (typically  during  the  following  calendar  year),  the  Company  awards  the  participant  DSUs  representing  the  number  of  shares  of
common stock with an aggregate fair market value on that date equal to the amount of compensation elected to be deferred under the MSPP. On the same date
the DSUs are awarded, the participant

F-43

 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

receives a grant of Matching RSUs covering the number of shares of common stock equal up to 100% of the DSUs granted. The expense related to the DSUs
is recognized on a straight-line basis during the period that the related incentive bonus or commission is earned. The Company granted 82,374 and 75,479
DSUs during the years 2023 and 2022, respectively. The expense related to the Matching RSUs is recognized over the four-year vesting period following the
grant date.

The following tables presents the Matching RSU activity for the year ended December 31, 2023:

Unvested MSPP restricted stock units at December 31, 2022

Granted
Vested
Canceled

Unvested MSPP restricted stock units at December 31, 2023

Employee 401(k) Plan

Number of
Matching RSU
Shares

Weighted-Average
Grant Date
Fair Value per
Share

180,431  $
82,374  $
(52,710) $
(13,128) $
196,967  $

60.52 
67.36 
46.91 
66.67 

66.61 

The  Company  maintains  a  401(k)  Plan  as  a  defined  contribution  retirement  plan  for  all  eligible  employees. The  401(k)  Plan  provides  for  tax-deferred
contributions of employees’ salaries, limited to a maximum annual amount as established by the IRS. In addition to the traditional 401(k), effective January 1,
2015, eligible employees have the option of making an after-tax contribution to a Roth 401(k) plan or a combination of both. In each of 2023, 2022 and 2021,
the  Company  matched  100%  of  employee  contributions  up  to  a  maximum  of  4%  of  total  compensation.  Amounts  contributed  to  the  401(k)  Plan  by  the
Company  to  match  employee  contributions  for  the  years  ended  December  31,  2023,  2022  and  2021  were  approximately  $25.5  million,  $21.5  million  and
$17.6 million, respectively. The Company had no administrative expenses in connection with the 401(k) Plan for each of the years ended December 31, 2023,
2022 and 2021.

Employee Pension Plan

The Company maintains a GPP Plan for all eligible employees in the Company’s U.K. offices. The GPP Plan is a defined contribution plan. Employees
are eligible to contribute a portion of their salaries, subject to a maximum annual amount as established by Her Majesty's Revenue and Customs. In each of
2023,  2022  and  2021,  the  Company's  matching  contribution  was  based  on  the  percentage  contributed  by  the  employee,  up  to  a  maximum  of  6%  of  total
compensation. Amounts contributed to the GPP Plan by the Company to match employee contributions for the years ended December 31, 2023, 2022 and
2021, were approximately $1.2 million, $1.0 million and $0.9 million, respectively.

Registered Retirement Savings Plan

As  of  January  1,  2015,  the  Company  introduced  a  RRSP  for  all  eligible  employees  in  the  Company’s  Canadian  offices.  In  each  of  the  years  ended
December  31,  2023,  2022  and  2021,  the  Company  matched  100%  of  employee  contributions  up  to  a  maximum  of  4%  of  total  compensation.  Amounts
contributed to the RRSP by the Company to match employee contributions were approximately $0.2 million for the year ended December 31, 2023, and $0.1
million for both of the years ended December 31, 2022 and 2021.

Employee Stock Purchase Plan

As  of  August  1,  2006,  the  Company  introduced  an  ESPP,  pursuant  to  which  eligible  employees  participating  in  the  plan  authorize  the  Company  to
withhold specified amounts from the employees’ compensation and use the withheld amounts to purchase shares of the Company's common stock at 90% of
the  market  price.  Participating  employees  are  able  to  purchase  common  stock  under  this  plan  during  each  offering  period.  An  offering  period  begins  the
second  Saturday  before  each  of  the  Company’s  regular  pay  dates  and  ends  on  each  of  the  Company’s  regular  pay  dates.  On  June  2,  2021,  the  Company’s
stockholders approved an amendment to the ESPP to increase the number of shares available for purchase under the ESPP by 1 million shares. The Company
registered  the  issuance  of  these  additional  shares  under  the  ESPP  pursuant  to  the  registration  statement  filed  on  July  28,  2021.  There  were  782,328  and
1,010,267 shares available for purchase under the ESPP as of December 31, 2023 and 2022, respectively, and approximately 227,939 and 223,596 shares of
the Company’s common stock were purchased under the ESPP during 2023 and 2022, respectively. 

F-44

 
 
 
 
COSTAR GROUP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

18.    SUBSEQUENT EVENTS

In January 2024, the Company entered into a conditional purchase and sale agreement for an office building in Arlington, Virginia. The Company closed
on the transaction in February 2024 along with an agreement to purchase the land underlying the building. These transactions totaled $340.0 million, inclusive
of property taxes, titling insurance and other transaction costs and were paid with cash on hand.

F-45

Exhibit 10.22

CoStar Group, Inc.

Second Amended and Restated Employee Share Purchase Plan

Canadian Addendum

This addendum (the “Canadian Addendum”) to the CoStar Group, Inc. Second Amended and Restated Employee Share Purchase Plan (the
“Plan”) shall form part of the Plan and will apply to eligible employees of CoStar Group, Inc. (the “Company”) and Designated Subsidiaries
who are resident or employed in Canada (each a “Canadian Participant”) who participate in the Plan. Unless otherwise defined in this
Canadian Addendum, the terms used herein shall have the meanings ascribed to them in the Plan.

By participating in, and purchasing Common Stock under, the Plan, each Canadian Participant represents, warrants and acknowledges as
follows:

Canadian Securities Law Matters

1. The Canadian Participant’s participation in the trade and acceptance of Common Stock pursuant to the terms of the Plan is voluntary.

2. The Canadian Participant has not been induced to participate in the Plan by expectation of engagement, appointment, employment or

continued engagement, appointment or employment, as applicable, by the Company or any Designated Subsidiary.

3. Participation in the Plan does not create the right or expectation for any additional grants of Common Stock or other securities of the

Company.

4. Common Stock sold under the Plan are being distributed on a prospectus exempt basis in Canada. The Company is not a reporting

issuer in any province or territory of Canada, the securities are not listed on any stock exchange in Canada, and the Company does not
intend to become a reporting issuer or to list the securities on any stock exchange in Canada. As there is no market for the Common
Stock in Canada, it may be difficult or even impossible for a Canadian Participant to sell their Common Stock in Canada. Any resale of
Common Stock must be made in accordance with applicable securities laws in Canada, which may require resales to be made in
accordance with or pursuant to an exemption from, or in a transaction not subject to, the prospectus requirements of applicable
Canadian securities law. Canadian Participants are advised to seek legal advice prior to any resale of the Common Stock.

Tax Matters

5. The Company hereby provides notice to the Canadian Participant that, should the Company be a “specified person” within the meaning
of section 110 of the Income Tax Act (Canada) (the “Canadian Tax Act”), the Common Stock issued hereunder will be designated as
“non-qualified securities” and the Company will notify the Minister of National Revenue of Canada of any Common Stock that will be
non-qualified securities on or before the filing-due date for the taxation year of the Company that includes the day on which the
Common Stock are issued.

6. The Canadian Participant acknowledges that the difference between the fair market value of the Common Stock acquired and the

Option Price paid by the Canadian Participant is a taxable benefit for the purposes of the Canadian Tax Act which will be reported in
Box 14 and Box 38 of

Exhibit 10.22

the T4 slip, and which is subject to Canada Pension Plan premiums, but not Employment Insurance premiums.

7. Notwithstanding section 24 of the Plan, the Company shall not withhold any part of the Common Stock issued to a Canadian Participant
to satisfy any withholding obligations related to the taxable benefit and the Canadian Participant acknowledges and agrees to make
provision for such withholdings with the Administrator.

Employment Matters

8. For the purposes of section 11 of the Plan, the Canadian Participant’s employment will be deemed to terminate (and any reference to

cessation of employment and cease to be an employee will have the same meaning as such deemed termination of employment) on the
first date that the Canadian Participant ceases to be actively employed by the Company (or any subsidiary). The Canadian Participant
agrees that they will not be considered to be actively employed or in active employment during any period or time in which the
Canadian Participant receives or is required by applicable law to receive pay in lieu of notice or severance pay (except as may be
required by the minimum extent of any applicable employment standards legislation). For further clarity, except as may be required by
the minimum extent of any applicable employment standards legislation, the Canadian Participant will not be considered actively
employed or in active employment even if they receive any compensation payments related to their termination (including resignation
and constructive dismissal) or they are paid salary or other amounts thereby, including when receiving salary or other amounts in lieu of
notice of termination.

For greater clarity, except as may be required by the minimum extent of any applicable employment standards legislation, if the
Canadian Participant’s employment is terminated for any reason (including death), the Canadian Participant’s right (if any) to any
benefit or any amounts with respect to such benefits under the Plan shall expire on the cessation of active employment, regardless of
whether notice of termination is given or not given and regardless of whether the termination is lawful or unlawful (e.g., constructive
dismissal). This includes where the Canadian Participant’s employment is terminated without cause or without notice and the Canadian
Participant will not, except as may be required by the minimum extent of any applicable employment standards legislation, be entitled
to an benefits or any amounts with respect to any benefit under the Plan as part of any common law right for compensation or damages
related to any termination of employment (including resignation and constructive dismissal), including any loss of benefits that would
have received during any notice period as part of any wrongful dismissal damages and including any damages for the manner of
termination.

Miscellaneous

9. The Canadian Participant and the Company agree that this Canadian Addendum and all related documents be exclusively drawn up in

English. Le Participant Canadien et la Compagnie consentent à ce que cette addenda canadien et tous les documents qui s’y rattachent
soient exclusivement rédigés en français.

10. The Canadian Participant has received, or has had the opportunity to receive, independent legal advice in connection with the terms and

conditions of the Plan, including this Canadian Addendum, and any Common Stock purchased thereunder.

11. All other provisions of the Plan shall continue to apply to Canadian Participants to the extent that they have not been specifically

modified by this Canadian Addendum.

Exhibit 10.22

EXHIBIT 21.1

Subsidiaries of the Registrant

Enty

Jurisdicon

Agents' Mutual Limited

AM Tempco Limited

BIH

Business Immo

Comreal Info

CoStar Central Place HQ, LLC

CoStar Espana, S.L.

CoStar Field Research, LLC

CoStar Internaonal, LLC

CoStar Italy S.r.l.

CoStar Realty Informaon Canada Ltd.

CoStar Realty Informaon, Inc.

CoStar UK Limited

Cozy Insurance Services, LLC

Cozy Services, LLC

Glanty LTD

Grecam S.A.S.

Homes Media Soluons, LLC

Homes.com, LLC

Homesnap, LLC

OnTheMarket PLC

STR Australia Pty Ltd.

STR Benchmarking Indonesia

STR Benchmarking Soluons (Beijing) Co., Ltd

STR Columbia SAS

STR Germany GmbH

STR Global Ltd.

STR Global Singapore Private Limited

STR Japan GK (STR Japan Limited)

STR, LLC

Ten-X, Inc.

Ten-X, Inc.

Ten-X, LLC

The Screening Pros, LLC

Thomas Daily GmbH

Virginia Property Holdings II, LLC

United Kingdom

United Kingdom

France

France

France

Delaware

Spain

Delaware

Delaware

Italy

Brish Columbia

Delaware

United Kingdom

Florida

Delaware

United Kingdom

France

Virginia

Delaware

Delaware

United Kingdom

Australia

Indonesia

PRC

Columbia

Germany

United Kingdom

Singapore

Japan

Delaware

Delaware

Conneccut

Delaware

California

Germany

Delaware

EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1) Registration Statement Number 333-135709 on Form S-8 pertaining to the CoStar Group, Inc. Employee Stock Purchase Plan,
(2) Registration Statement Number 333-206929 on Form S-8 pertaining to the CoStar Group, Inc. Amended and Restated Employee Stock Purchase

Plan,

(3) Registration Statement Number 333-143968 on Form S-8 pertaining to the CoStar Group, Inc. 2007 Stock Incentive Plan, as amended,
(4) Registration Statement Number 333-167424 on Form S-8 pertaining to the CoStar Group, Inc. 2007 Stock Incentive Plan, as amended,
(5) Registration Statement Number 333-182377 on Form S-8 pertaining to the CoStar Group, Inc. 2007 Stock Incentive Plan, as amended,
(6) Registration Statement Number 333-212278 on Form S-8 pertaining to the CoStar Group, Inc. 2016 Stock Incentive Plan, 
(7) Registration Statement Number 333-223230 on Form S-8 pertaining to the CoStar Group, Inc. Management Stock Purchase Plan, and
(8) Registration Statement Number 333-258220 on Form S-8 of CoStar Group, Inc. pertaining to the Second Amended and Restated Employee

Stock Purchase Plan.

of our reports dated February 21, 2024, with respect to the consolidated financial statements of CoStar Group, Inc. and the effectiveness of internal control
over financial reporting of CoStar Group, Inc. included in this Annual Report (Form 10-K) of CoStar Group, Inc. for the year ended December 31, 2023.

/s/ Ernst & Young LLP

Tysons, Virginia

February 21, 2024

 
EXHIBIT 31.1

I, Andrew C. Florance, certify that:

1.

I have reviewed this annual report on Form 10-K of CoStar Group, Inc.;

CERTIFICATION

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the

statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the

financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in

Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))
for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure
that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities,
particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision,
to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness

of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal
quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect,
the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely

to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over

financial reporting.

Date: February 21, 2024

By:

/s/ Andrew C. Florance
Andrew C. Florance
President and Chief Executive Officer
(Principal Executive Officer and Duly Authorized Officer)

 
 
 
 
 
 
 
 
 
EXHIBIT 31.2

I, Scott T. Wheeler certify that:

1.

I have reviewed this annual report on Form 10-K of CoStar Group, Inc.;

CERTIFICATION

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the

statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the

financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in

Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))
for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure
that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities,
particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision,
to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness

of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal
quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect,
the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely

to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over

financial reporting.

Date: February 21, 2024

By:

/s/ Scott T. Wheeler
Scott T. Wheeler
Chief Financial Officer
(Principal Financial and Accounting Officer and Duly Authorized Officer)

 
 
 
 
 
 
 
 
 
EXHIBIT 32.1

CoStar Group, Inc.
1331 L Street, NW
Washington, DC 20005

February 21, 2024

Securities and Exchange Commission
100 F Street, NE
Washington, DC  20549

Re:  Certification Of Principal Executive Officer Pursuant To 18 U.S.C. Sec. 1350

Dear Ladies and Gentlemen:

In connection with the accompanying Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2023, I, Andrew C. Florance,
Chief Executive Officer of CoStar Group, Inc., hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that:

1)

2)

such Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2023, fully complies with the requirements of Section
13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o (d)); and

the information contained in such Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2023, fairly presents, in all
material respects, the financial condition and results of operations of CoStar Group, Inc.

By:

/s/ Andrew C. Florance
Andrew C. Florance
President and Chief Executive Officer
(Principal Executive Officer and Duly Authorized Officer)

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging or otherwise adopting the signature
that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to CoStar Group, Inc. and will be
retained by CoStar Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

In accordance with Item 601 of Regulation S-K, this certification is being “furnished” as Exhibit 32.1 to CoStar Group, Inc.’s annual report and shall not
be  deemed  “filed”  for  purposes  of  Section  18  of  the  Securities  Exchange  Act  of  1934  (the  “Exchange  Act”)  or  otherwise  subject  to  the  liabilities  of  that
section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by
specific reference in such a filing.

 
 
 
 
 
 
 
EXHIBIT 32.2

CoStar Group, Inc.
1331 L Street, NW
Washington, DC 20005

February 21, 2024

Securities and Exchange Commission
100 F Street, NE
Washington, DC  20549

Re: Certification Of Principal Financial Officer Pursuant To 18 U.S.C. Sec. 1350

Dear Ladies and Gentlemen:

In connection with the accompanying Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2023, I, Scott T. Wheeler,
Chief Financial Officer of CoStar Group, Inc., hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that:

1)

2)

such Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2023, fully complies with the requirements of Section
13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o (d)); and

the information contained in such Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2023, fairly presents, in all
material respects, the financial condition and results of operations of CoStar Group, Inc.

By:

/s/ Scott T. Wheeler
Scott T. Wheeler
Chief Financial Officer
(Principal Financial and Accounting Officer and Duly Authorized
Officer)

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging or otherwise adopting the signature
that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to CoStar Group, Inc. and will be
retained by CoStar Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

In accordance with Item 601 of Regulation S-K, this certification is being “furnished” as Exhibit 32.2 to CoStar Group, Inc.’s annual report and shall not
be  deemed  “filed”  for  purposes  of  Section  18  of  the  Securities  Exchange  Act  of  1934  (the  “Exchange  Act”)  or  otherwise  subject  to  the  liabilities  of  that
section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by
specific reference in such a filing.

 
 
 
 
 
 
 
Approved by the
CoStar Group, Inc.
Board of Directors
September 13, 2023

CoStar Group, Inc.

Policy for Recovery of Erroneously Awarded Compensation

CoStar Group, Inc. (the “Company”) has adopted this Policy for Recovery of Erroneously Awarded Compensation (the “Policy”), effective as
of October 2, 2023 (the “Effective Date”), which Policy is an amendment and restatement of the Company’s Clawback Policy, adopted effective
March 3, 2014 (the “Prior Policy”). Capitalized terms used in this Policy but not otherwise defined herein are defined in Section 11.

Persons Subject to Policy

This Policy shall apply to current and former Officers.

Compensation Subject to Policy

This Policy shall apply to Incentive-Based Compensation received on or after the Effective Date. For purposes of this Policy, the date on which
Incentive-Based  Compensation  is  “received”  shall  be  determined  under  the  Applicable  Rules,  which  generally  provide  that  Incentive-Based
Compensation  is  “received”  in  the  Company’s  fiscal  period  during  which  the  relevant  Financial  Reporting  Measure  is  attained  or  satisfied,
without regard to whether the grant, vesting or payment of the Incentive-Based Compensation occurs after the end of that period.

2.

Recovery of Compensation

In the event that the Company is required to prepare a Restatement, the Company shall recover, reasonably promptly and in accordance with
Section  4  below,  the  portion  of  any  Incentive-Based  Compensation  that  is  Erroneously  Awarded  Compensation,  unless  the  Committee  has
determined that recovery from the relevant current or former Officer would be Impracticable. Recovery shall be required in accordance with the
preceding sentence regardless of whether the applicable Officer engaged in misconduct or otherwise caused or contributed to the requirement
for  the  Restatement  and  regardless  of  whether  or  when  restated  financial  statements  are  filed  by  the  Company.  For  clarity,  the  recovery  of
Erroneously Awarded Compensation under this Policy will not give rise to any Officer’s right to voluntarily terminate employment for “good
reason” or due to a “constructive termination” (or any similar term of like effect) under any plan, program or policy of or agreement with the
Company or any of its affiliates.

Manner of Recovery; Limitation on Duplicative Recovery

The Committee shall, in its sole discretion, determine the manner of recovery of any Erroneously Awarded Compensation, which may include,
without limitation, reduction or cancellation by the Company or an affiliate of the Company of Incentive-Based Compensation or Erroneously
Awarded Compensation, reimbursement or repayment by any person subject to this Policy of the Erroneously Awarded Compensation, and, to
the extent permitted by law, an offset of the Erroneously Awarded Compensation against other compensation payable by the Company or an
affiliate of the Company to such person. Notwithstanding the foregoing, unless otherwise prohibited by the Applicable Rules, to the extent this
Policy  provides  for  recovery  of  Erroneously  Awarded  Compensation  already  recovered  by  the  Company  pursuant  to  Section  304  of  the
Sarbanes-Oxley Act of 2002 or Other Recovery Arrangements, the amount of Erroneously Awarded Compensation already recovered by the
Company  from  the  recipient  of  such  Erroneously  Awarded  Compensation  may  be  credited  to  the  amount  of  Erroneously  Awarded
Compensation required to be recovered pursuant to this Policy from such person.

1

Administration

This  Policy  shall  be  administered,  interpreted  and  construed  by  the  Committee,  which  is  authorized  to  make  all  determinations  necessary,
appropriate  or  advisable  for  such  purpose.  The  Board  may  re-vest  in  itself  the  authority  to  administer,  interpret  and  construe  this  Policy  in
accordance with applicable law, and in such event references herein to the “Committee” shall be deemed to be references to the Board. Subject
to any permitted review by the applicable national securities exchange or association pursuant to the Applicable Rules, all determinations and
decisions made by the Committee pursuant to the provisions of this Policy shall be final, conclusive and binding on all persons, including the
Company and its affiliates, stockholders and employees. The Committee may delegate administrative duties with respect to this Policy to one or
more directors or employees of the Company, as permitted under applicable law, including any Applicable Rules.

Interpretation

This Policy shall be interpreted and applied in a manner that is consistent with the requirements of the Applicable Rules, and to the extent this
Policy  is  inconsistent  with  such  Applicable  Rules,  it  shall  be  deemed  amended  to  the  minimum  extent  necessary  to  ensure  compliance
therewith.

No Indemnification; No Liability

The Company shall not indemnify or insure any person against the loss of any Erroneously Awarded Compensation pursuant to this Policy, nor
shall the Company directly or indirectly pay or reimburse any person for any premiums for third-party insurance policies that such person may
elect  to  purchase  to  fund  such  person’s  potential  obligations  under  this  Policy.  None  of  the  Company,  an  affiliate  of  the  Company  or  any
member of the Committee or the Board shall have any liability to any person as a result of actions taken under this Policy.

Application; Enforceability

Effective as of the Effective Date, this Policy will supersede the Prior Policy in all respects. Except as otherwise determined by the Committee
or the Board, the adoption of this Policy does not limit, and is intended to apply in addition to, any Other Recovery Arrangements. Subject to
Section 4, the remedy specified in this Policy shall not be exclusive and shall be in addition to every other right or remedy at law or in equity
that may be available to the Company or an affiliate of the Company or is otherwise required by applicable law and regulations.

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Severability

The provisions in this Policy are intended to be applied to the fullest extent of the law; provided, however, to the extent that any provision of
this Policy is found to be unenforceable or invalid under any applicable law, such provision will be applied to the maximum extent permitted,
and  shall  automatically  be  deemed  amended  in  a  manner  consistent  with  its  objectives  to  the  extent  necessary  to  conform  to  any  limitations
required under applicable law.

Amendment and Termination

The  Board  or  the  Committee  may  amend,  modify  or  terminate  this  Policy  in  whole  or  in  part  at  any  time  and  from  time  to  time  in  its  sole
discretion.  This  Policy  will  terminate  automatically  when  the  Company  does  not  have  a  class  of  securities  listed  on  a  national  securities
exchange or association.

Definitions

“Applicable Rules” means Section 10D of the Exchange Act, Rule 10D-1 promulgated thereunder, the listing rules of the national securities
exchange  or  association  on  which  the  Company’s  securities  are  listed,  and  any  applicable  rules,  standards  or  other  guidance  adopted  by  the
Securities and Exchange Commission or any national securities exchange or association on which the Company’s securities are listed.

“Board” means the Board of Directors of the Company.

“Committee” means the Compensation Committee of the Board or, in the absence of such a committee, a majority of the independent directors
serving on the Board.

“Erroneously  Awarded  Compensation”  means  the  amount  of  Incentive-Based  Compensation  received  by  a  current  or  former  Officer  that
exceeds  the  amount  of  Incentive-Based  Compensation  that  would  have  been  received  by  such  current  or  former  Officer  based  on  a  restated
Financial Reporting Measure, as determined on a pre-tax basis in accordance with the Applicable Rules.

“Exchange Act” means the Securities Exchange Act of 1934, as amended.

“Financial Reporting Measure” means any measure determined and presented in accordance with the accounting principles used in preparing
the Company’s financial statements, and any measures derived wholly or in part from such measures, including GAAP and non-GAAP financial
measures, as well as stock price and total stockholder return.

“GAAP” means United States generally accepted accounting principles.

“Impracticable”  means  (a)  the  direct  expense  paid  to  third  parties  to  assist  in  enforcing  recovery  would  exceed  the  Erroneously  Awarded
Compensation;  provided  that  the  Company  has  (i)  made  reasonable  attempt(s)  to  recover  the  Erroneously  Awarded  Compensation,  (ii)
documented such reasonable attempt(s), and (iii) provided such documentation to the relevant listing exchange or association, (b) the recovery
would  violate  the  Company’s  home  country  laws  adopted  prior  to  November  28,  2022  pursuant  to  an  opinion  of  home  country  counsel;
provided that the Company has (i) obtained an opinion of home country counsel, acceptable to the relevant listing exchange or association, that
recovery would result in such a violation, and (ii) provided such opinion to the relevant listing exchange or association, or (c) recovery would
likely cause an otherwise tax-qualified retirement plan, under which benefits are broadly available to employees of the Company, to fail to meet
the requirements of 26 U.S.C. 401(a)(13) or 26 U.S.C. 411(a) and the regulations thereunder.

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“Incentive-Based Compensation” means, with respect to a Restatement, any compensation that is granted, earned, or vested based wholly or in
part  upon  the  attainment  of  one  or  more  Financial  Reporting  Measures  and  received  by  a  person:  (a)  after  such  person  began  service  as  an
Officer; (b) who served as an Officer at any time during the performance period for that compensation; (c) while the Company has a class of
securities listed on a national securities exchange or association; and (d) during the applicable Three-Year Period.

“Officer” means each person who the Company determines serves as a Company officer, as defined in Section 16 of the Exchange Act.

“Other Recovery Arrangements” means any clawback, recoupment, forfeiture or similar policies or provisions of the Company or its affiliates,
including any such policies or provisions of such effect contained in any employment agreement, bonus plan, incentive plan, equity-based plan
or award agreement thereunder or similar plan, program or agreement of the Company or an affiliate or required under applicable law.

“Restatement”  means  an  accounting  restatement  to  correct  the  Company’s  material  noncompliance  with  any  financial  reporting  requirement
under securities laws, including restatements that correct an error in previously issued financial statements (a) that is material to the previously
issued financial statements or (b) that would result in a material misstatement if the error were corrected in the current period or left uncorrected
in the current period.

“Three-Year Period” means, with respect to a Restatement, the three completed fiscal years immediately preceding the date that the Board, a
committee of the Board, or the officer or officers of the Company authorized to take such action if Board action is not required, concludes, or
reasonably should have concluded, that the Company is required to prepare such Restatement, or, if earlier, the date on which a court, regulator
or other legally authorized body directs the Company to prepare such Restatement. The “Three-Year Period” also includes any transition period
(that  results  from  a  change  in  the  Company’s  fiscal  year)  within  or  immediately  following  the  three  completed  fiscal  years  identified  in  the
preceding sentence. However, a transition period between the last day of the Company’s previous fiscal year end and the first day of its new
fiscal year that comprises a period of nine to 12 months shall be deemed a completed fiscal year.

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Acknowledgment and Consent to 
Policy for Recovery of Erroneously Awarded Compensation

The  undersigned  has  received  a  copy  of  the  Policy  for  Recovery  of  Erroneously  Awarded  Compensation  (the  “Policy”)  adopted  by  CoStar
Group, Inc. (the “Company”), and has read and understands the Policy. Capitalized terms used but not defined herein shall have the meanings
ascribed to such terms in the Policy.

As a condition of receiving Incentive-Based Compensation from the Company, the undersigned agrees that any Incentive-Based Compensation
received on or after the Effective Date is subject to recovery pursuant to the terms of the Policy. To the extent the Company’s recovery right
conflicts  with  any  other  contractual  rights  the  undersigned  may  have  with  the  Company,  the  undersigned  understands  that  the  terms  of  the
Policy  shall  supersede  any  such  contractual  rights.  The  terms  of  the  Policy  shall  apply  in  addition  to  any  right  of  recoupment  against  the
undersigned under applicable law and regulations.

___________________

________________________________________

Date

Signature

________________________________________

Name

________________________________________

Title

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