June 01, 2026
A real estate brokerage asked a Virginia federal court to allow proceedings to continue in its antitrust case against CoStar, noting that, although the parties agree that similar cases should be consolidated with the Virginia case, the suit need not be frozen in the meantime.
May 26, 2026
CoStar Group is asking a Virginia federal court to pause an antitrust suit alleging it stifles competition and prevents cross-listings while it seeks to move a similar case, filed by Malm Inc., from California.
April 15, 2026
CoStar Group faces a lawsuit in Virginia federal court alleging that the real estate information service has for years sought to prevent cross-listings by customers and shut out would-be competitors through acquisitions and noncompete deals with large brokerages, in what plaintiffs' counsel claims is the first such antitrust class action against the company.