Zillow Investors Face August Deadline in Antitrust Securities Suit

The complaint, filed in the U.S. District Court for the Western District of Washington, alleges that Zillow and its senior executives violated federal securities laws by mischaracterizing a deal with Redfin. While publicly framed as a strategic partnership, the lawsuit contends the agreement functioned as a payout for Redfin to exit the internet listing services market and cease competition. This alleged misconduct surfaced following an FTC investigation, which reported that the payment was designed to bypass merit-based market competition.

Financial fallout from the legal pressure has hit Zillow’s bottom line, with the company noting that escalating legal expenses would create a 200-basis-point headwind to EBITDA margins. Investors in Class C and Class A common stock who held shares during the period of these disclosures are now being represented by Bleichmar Fonti & Auld LLP. The case, captioned Breidert v. Zillow Group, Inc., et al., highlights the volatility Zillow shares experienced throughout 2026, including sharp declines following both the FTC’s initial complaint and a federal judge’s refusal to dismiss the antitrust litigation in May.