CoStar Group Announces Public Offering of Common Stock

WASHINGTON–(BUSINESS WIRE)–CoStar Group, Inc. (NASDAQ: CSGP), a leading provider of online real estate marketplaces, information and analytics, announced today that in conjunction with the September 2, 2022 announcement by Standard & Poor’s to include CoStar in the S&P 500 index, CoStar has commenced a public offering of $750 million of its common stock, representing approximately 9.79 million shares (based on the closing price on September 13, 2022 of $76.64). CoStar plans to market the offering primarily to S&P 500 index funds expected to have an interest in purchasing shares ahead of the date of CoStar’s inclusion in the S&P 500 index. CoStar believes the number of shares being offered represents only a limited portion of such expected index fund demand. S&P will add CoStar’s common stock to the S&P 500 index prior to the open of trading on September 19, 2022.

CoStar expects to use the net proceeds of the offering to fund all or a portion of the costs of any strategic acquisitions CoStar determines to pursue in the future, to finance the growth of its business and for working capital and other general corporate purposes. Goldman Sachs & Co. LLC and J.P. Morgan are acting as joint book-running managers for the offering.

About CoStar Group, Inc.

CoStar Group, Inc. (NASDAQ: CSGP) is a leading provider of online real estate marketplaces, information and analytics. Founded in 1987, CoStar conducts expansive, ongoing research to produce and maintain the largest and most comprehensive database of commercial real estate information. Our suite of online services enables clients to analyze, interpret and gain unmatched insight on commercial property values, market conditions and current availabilities. STR provides premium data benchmarking, analytics and marketplace insights for the global hospitality industry. Ten-X provides a leading platform for conducting commercial real estate online auctions and negotiated bids. LoopNet is the most heavily trafficked commercial real estate marketplace online. Apartments.com, ApartmentFinder.com, ForRent.com, ApartmentHomeLiving.com, Westside Rentals, AFTER55.com, CorporateHousing.com, ForRentUniversity.com and Apartamentos.com form the premier online apartment resource for renters seeking great apartment homes and provide property managers and owners a proven platform for marketing their properties. Homesnap is an industry-leading online and mobile software platform that provides user-friendly applications to optimize residential real estate agent workflow and reinforce the agent-client relationship. Homes.com offers real estate professionals advertising and marketing services for residential properties. Realla is the UK’s most comprehensive commercial property digital marketplace. BureauxLocaux is one of the largest specialized property portals for buying and leasing commercial real estate in France. CoStar Group’s websites attract tens of millions of unique monthly visitors. Headquartered in Washington, DC, CoStar Group maintains offices throughout the U.S., Europe, Canada and Asia. From time to time we plan to utilize our corporate website, www.costargroup.com, as a channel of distribution for material company information.