Microsoft’s Copilot products are at the center of a securities class action. The law firm Glancy Prongay Wolke & Rotter LLP says investors who lost money can ask to lead the case. The deadline is August 11, 2026.
The complaint covers May 1, 2025 through January 28, 2026. It says that over that stretch Microsoft and other defendants made false or misleading statements and left out adverse facts about the business and its prospects.
What investors say was hidden
The complaint lists five failures to disclose. First, that Copilot products had run into problems with brand positioning, user experience, usage, data siloing, computing capacity, organization and interoperability. Second, that Microsoft’s flagship in-house AI model ranked well below rivals on several benchmark tests.
Third, that Microsoft would have to raise capital spending by billions of dollars and pull GPU and CPU capacity away from its profitable Azure services to make Copilot more competitive and fund more AI research. Fourth, that as a result the company had not converted a significant share of its commercial Microsoft 365 users into paying Copilot subscribers, and that Copilot was losing market share to competing products at a growing rate.
The fifth point ties it together. Because of all that, the suit says, upbeat statements about Microsoft’s operations and outlook were misleading or had no reasonable basis at the time.
What happens next
A lead plaintiff directs the litigation for everyone in the class. Anyone who wants the role must file a motion with the court by August 11. The firm says investors may hire a lawyer of their choice.
They can also do nothing. Anyone who bought Microsoft securities during the class period and stays passive remains an absent class member. No class has been certified yet.
Glancy Prongay Wolke & Rotter describes itself as a leading national shareholder rights firm. It says it was ranked second in total investor recoveries by Institutional Shareholder Services Securities Class Action Services in 2025. Microsoft trades on Nasdaq as MSFT.
Sources
- Microsoft Corporation (MSFT) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud Lawsuit
- Microsoft Corporation (MSFT) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud Lawsuit
