Microsoft Corporation Class Action Lawsuit - MSFT
Case Summary
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Robbins Geller Rudman & Dowd LLP has filed a class action lawsuit seeking to represent purchasers of Microsoft Corporation (NASDAQ: MSFT) common stock between May 1, 2025 and January 28, 2026, inclusive (the “Class Period”). Captioned City of St. Clair Shores Police and Fire Retirement System v. Microsoft Corporation, No. 26-cv-02071 (W.D. Wash.), the Microsoft class action lawsuit charges Microsoft and certain of Microsoft’s top executive officers with violations of the Securities Exchange Act of 1934.
If you suffered substantial losses and wish to serve as lead plaintiff of the Microsoft class action lawsuit, please provide your information in the form on this page. You can also contact attorneys Ken Dolitsky or Michael Albert of Robbins Geller by calling 800/851-7783 or via e-mail at info@rgrdlaw.com. Lead plaintiff motions for the Microsoft class action lawsuit must be filed with the court no later than August 11, 2026.
CASE ALLEGATIONS: Microsoft is one of the largest technology conglomerates in the world.
The Microsoft class action lawsuit alleges that defendants during the Class Period made false and/or misleading statements because they failed to disclose that: (i) Microsoft’s Copilot family of products had experienced significant brand positioning, user experience, usage, data siloing, computational capacity, organizational, and interoperability problems; (ii) Microsoft’s flagship proprietary AI model ranked well below competitors on a number of benchmark tests; (iii) Microsoft needed to increase by billions of dollars its capital expenditures and divert graphics processing unit (“GPU”) and central processing unit (“CPU”) capacity away from fulfilling demand for its profitable Azure services in order to improve the competitive positioning of its critical Copilot family of products and increase its AI-related research and development (“R&D”); and (iv) as a result of the above, Microsoft had failed to convert a significant percentage of its commercial Microsoft 365 users to paid Copilot subscriptions and Microsoft’s Copilot offerings had lost market share to rival products, a trend that was increasing.
On January 28, 2026, Microsoft announced disappointing results for its fiscal second quarter ended December 31, 2025. First, during the quarter Microsoft’s Azure growth had slowed suddenly and fallen below analyst expectations. During the related earnings call, CFO Amy E. Hood revealed that the slower Azure growth was primarily due to computational capacity constraints, as Microsoft had diverted CPU and GPU capacity to Copilot applications and AI-related R&D. Second, Microsoft revealed that its capital expenditures had increased to $37.5 billion during the quarter, causing Microsoft’s capital expenditures for the first six months of its fiscal 2026 to increase to $72.4 billion compared to $88.2 billion for all of Microsoft’s fiscal 2025. Third, Microsoft revealed, for the first time, that the number of paid Microsoft 365 Copilot seats totaled only 15 million to date, materially below analyst estimates and a fraction of the more than 450 million commercial Microsoft 365 users. On this news, the price of Microsoft stock fell nearly 10%.
Then, on February 3, 2026, The Wall Street Journal revealed, in an article titled “Microsoft’s Pivotal AI Product Is Running Into Big Problems,” that severe challenges and functionality issues had plagued Microsoft’s Copilot offerings, leading to Copilot losing market share during the Class Period to competing products such as Google’s Gemini. The price of Microsoft stock continued to fall in the days after Microsoft’s second quarter 2026 earnings announcement as the market continued to digest the adverse news and sources such as The Wall Street Journal revealed new adverse information.
Thereafter, on March 17, 2026, The Wall Street Journal revealed in an article titled “Microsoft Seeks More Coherence in AI Efforts With Copilot Reorganization” that Microsoft was reorganizing its Copilot product teams to unify commercial and consumer versions partly in response to the challenges revealed by The Wall Street Journal’s prior reporting on Copilot’s problem-plagued development and disappointing customer adoption. On this news, the price of Microsoft stock continued to fall.
The plaintiff is represented by Robbins Geller, which has extensive experience in prosecuting investor class actions including actions involving financial fraud. You can view a copy of the complaint by clicking here.
THE LEAD PLAINTIFF PROCESS: The Private Securities Litigation Reform Act of 1995 permits any investor who purchased Microsoft common stock during the Class Period to seek appointment as lead plaintiff in the Microsoft class action lawsuit. A lead plaintiff is generally the movant with the greatest financial interest in the relief sought by the putative class who is also typical and adequate of the putative class. A lead plaintiff acts on behalf of all other class members in directing the Microsoft class action lawsuit. The lead plaintiff can select a law firm of its choice to litigate the Microsoft class action lawsuit. An investor’s ability to share in any potential future recovery of the Microsoft class action lawsuit is not dependent upon serving as lead plaintiff.
ABOUT ROBBINS GELLER: Robbins Geller Rudman & Dowd LLP is one of the world’s leading law firms representing investors in securities fraud and shareholder rights litigation. Our Firm ranked #1 on the most recent ISS Securities Class Action Services Top 50 Report, recovering more than $916 million for investors in 2025. This marks our fourth #1 ranking in the past five years. And in those five years alone, Robbins Geller recovered $8.4 billion for investors – $3.4 billion more than any other law firm. With 200 lawyers in 10 offices, Robbins Geller is one of the largest plaintiffs’ firms in the world, and the Firm’s attorneys have obtained many of the largest securities class action recoveries in history, including the largest ever – $7.2 billion – in In re Enron Corp. Sec. Litig.