Wix Faces Investor Lawsuit Over AI Strategy and Cost Overruns

The lawsuit, filed by Hagens Berman, targets the period between February 19, 2025, and May 12, 2026. Investors claim that Wix overstated the competitiveness of its AI tools—designed to counter the rise of "vibe coding"—while simultaneously understating the massive capital required to sustain them. These concerns culminated on May 13, 2026, when the company revealed that non-GAAP sales and marketing expenses had surged 88% to $190.7 million, causing operating margins to plummet from 21% to 5%.

Management acknowledged during the May earnings call that the Harmony platform suffered from missing capabilities and development delays, leading professional users to abandon Wix for rival tools. This admission, coupled with a 46% year-over-year spike in quarterly operating expenses, wiped $1.1 billion from the company’s market valuation. Hagens Berman partner Reed Kathrein stated the firm is investigating whether Wix intentionally obscured the adverse financial impact of its AI pivot, as lead plaintiffs prepare for a September 22, 2026, filing deadline.