CoStar Group and Happening Technology End Dispute Amicably

CoStar Group, Inc. (NASDAQ: CSGP), a leading provider of online real estate marketplaces, information, analytics and 3D digital twin technology in the property markets, announced today that CoStar Group and Happening Technology have concluded their dispute, with all parties withdrawing every claim with prejudice, bringing the matter to a final and amicable close.

Guy Wolcott, a serial entrepreneur, founded the successful residential real estate platform Homesnap in 2012, which CoStar Group acquired in 2020 for $250 million. At the time of the acquisition, Homesnap was used regularly by over 300,000 residential agents in the United States. After departing CoStar, Wolcott, Thomas Goff, and Jeff Repanich launched Happening Technology to develop an innovative data pipeline product, with former Homesnap CEO John Mazur later becoming an investor and board member. Similarities between this product and CoStar’s internal data pipeline technology prompted CoStar’s reasonable concern regarding potential trade secret misappropriation — concerns that have now been fully addressed. Following a thorough review, the parties concluded that neither Happening Technology nor Wolcott, Goff, Repanich, or Mazur misappropriated CoStar’s trade secrets or violated any other legal obligation.

CoStar Group and Happening Technology are pleased to put this matter behind them and are open to exploring potential opportunities for collaboration in the future.

About CoStar Group

CoStar Group (NASDAQ: CSGP) is a global leader in commercial real estate information, analytics, online marketplaces and 3D digital twin technology. Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives.

CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.com, the leading platform for apartment rentals; and Homes.com, the fastest-growing residential real estate marketplace. CoStar Group’s industry-leading brands also include Matterport, a leading spatial data company whose platform turns buildings into data to make every space more valuable and accessible, STR, a global leader in hospitality data and benchmarking, Ten-X, an online platform for commercial real estate auctions and negotiated bids and OnTheMarket, a leading residential property portal in the United Kingdom.

CoStar Group’s websites attracted over 130 million average monthly unique visitors in the first quarter of 2025, serving clients around the world. Headquartered in Arlington, Virginia, CoStar Group is committed to transforming the real estate industry through innovative technology and comprehensive market intelligence. From time to time, we plan to utilize our corporate website as a channel of distribution for material company information. For more information, visit CoStarGroup.com.

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