Key Takeaways:
Microsoft Corp. was sued for securities fraud after the software giant's stock lost 10 percent in January when it disclosed slowing Azure cloud growth and weaker-than-expected adoption of its Copilot AI assistant.
"The complaint alleges that Microsoft misled investors about Copilot's capabilities and user adoption, which artificially inflated Azure-related revenue," Adam McCall, a partner at Bleichmar Fonti & Auld LLP, said.
The lawsuit, filed in the U.S. District Court for the Western District of Washington, covers investors who bought Microsoft shares between May 1, 2025 and Jan. 28, 2026. Microsoft shares fell $48.13, or 10 percent, to $433.50 on Jan. 29 after the company reported disappointing fiscal second-quarter results. Azure growth had slowed suddenly, and Microsoft 365 Copilot had only 15 million premium customers, materially below analyst estimates. The Wall Street Journal later reported on Feb. 3 that Copilot suffered from "confusing brand positioning and interoperability problems" that frustrated users.
Two law firms — Bronstein, Gewirtz & Grossman LLC and Bleichmar Fonti & Auld LLP — have announced the class action, which asserts claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934. The complaint alleges that Microsoft consistently touted Copilot's best-in-class capabilities during the class period, even as the AI assistant suffered from severe functionality issues that caused user adoption to decline and put Azure revenue at risk.
The case introduces legal and regulatory risk for Microsoft, which has invested billions into AI development. Azure has been the company's main growth driver in recent years, and any disruption to that business could affect the broader technology sector. Microsoft is a major component of the S&P 500 and Nasdaq 100 indices. Investors have until Aug. 11 to seek appointment as lead plaintiff in the case, which is captioned City of St. Clair Shores Police and Fire Retirement System, et al., No. 26-cv-02071.
This article is for informational purposes only and does not constitute investment advice.
