Following a nine-month legal battle and facing the prospect of court-imposed sanctions, Move has dismissed its lawsuit with prejudice, bringing the closely watched case to a decisive end

CoStar Group (NASDAQ:CSGP) a leading provider of online real estate marketplaces, information and analytics in the commercial and residential property markets, announced today that it has prevailed in a baseless trade secrets lawsuit brought by Move, Inc., the Rupert Murdoch-owned operator of Realtor.com.

In July 2024, Move filed a federal complaint accusing CoStar Group and former Move employee James Kaminsky of trade secret misappropriation. Move's core allegation—that Kaminsky had been hired by CoStar Group to launch a news division and was using information obtained from his time at Move to support that launch—was demonstrably false. Kaminsky was hired by CoStar Group to write descriptions of New York condominiums for Homes.com, a role he publicly disclosed and discussed with multiple former colleagues at Move.

At the outset, CoStar Group warned Move that it would seek sanctions if Move pursued its meritless claims. In response, Move quickly amended its complaint, deleting the false narrative about a news division and pivoting to a new, equally unfounded theory. When Move later sought a preliminary injunction, the court denied the request in September 2024, citing the speculative nature of Move's allegations, lack of demonstrated harm, and Move's unprecedented refusal to take any discovery – including the decision not to depose Kaminsky or any CoStar Group employees.

Over the following months, CoStar Group pressed Move for evidence and continued to challenge the lawsuit's legitimacy. In March 2025, CoStar Group's legal team notified Move of its intent to seek sanctions. The very next day after the deadline CoStar provided in its notice for Move to dismiss its case, Move filed a motion to delay the proceedings. When CoStar Group responded with a detailed brief highlighting Move's complete lack of evidence, Move abruptly asked CoStar Group if it would consent to the dismissal of Move's entire case against CoStar Group – with prejudice.