March 23, 2026
The U.S. Supreme Court refused on Monday to review a ruling that revived antitrust counterclaims lodged against the commercial real estate platform CoStar in its case accusing a rival platform of large-scale copyright infringement.
February 11, 2026
CoStar doubled down on its efforts to disqualify Quinn Emanuel Urquhart & Sullivan LLP counsel from representing rival CREXi amid copyright infringement litigation in California federal court, reiterating that it's not bound by a conflict waiver signed by a company CoStar later acquired.
February 04, 2026
Commercial real estate platform CREXi has urged a California federal judge to let it keep Quinn Emanuel Urquhart & Sullivan LLP as its counsel as it fights CoStar's accusations of copyright infringement, saying CoStar is only now raising conflict of interest concerns to gain a "tactical advantage."
January 13, 2026
CoStar urged a California federal judge Tuesday to disqualify Quinn Emanuel Urquhart & Sullivan LLP from helping a rival commercial real estate platform pursue antitrust counterclaims in CoStar's copyright infringement suit, while the law firm moved to drop its representation of CoStar in separate litigation.
December 09, 2025
CoStar is asking the U.S. Supreme Court to review a Ninth Circuit ruling reviving antitrust counterclaims from a rival commercial real estate platform, saying the appeals court accepted a novel theory of what constitutes exclusive dealing.
October 31, 2025
A California federal court refused a bid from Commercial Real Estate Exchange Inc. to pause CoStar Group Inc.'s "mass" infringement claims so they can be tried alongside CREXi's recently revived antitrust counterclaims.
August 27, 2025
CoStar Group Inc. told a California federal court that Commercial Real Estate Exchange Inc. is continuing to use its copyrighted images and urged the court not to put its infringement claims on hold for the rival listing platform's "makeweight" antitrust counterclaims.
July 28, 2025
Commercial Real Estate Exchange Inc. is asking to put CoStar's copyright infringement claims against it on hold so they can be tried alongside its recently revived antitrust claims against the property listing rival.
June 26, 2025
A California federal judge has rejected cross partial summary judgment bids made by property listing rivals CoStar Group Inc. and Commercial Real Estate Exchange Inc. in CoStar's copyright infringement suit against CREXi, which is accused of stealing nearly 50,000 CoStar commercial real estate images.
June 23, 2025
A Ninth Circuit panel on Monday revived counterclaims accusing CoStar of monopolizing commercial real estate information markets in the company's case accusing a rival of engaging in "industrial-scale" copyright infringement.