Super Micro (SMCI) told investors it was riding the AI wave. Record demand. Explosive growth. Billions in revenue. But behind the scenes, a very different story was unfolding.
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A newly filed federal lawsuit alleges that Super Micro Computer misled investors about its business operations while company insiders allegedly facilitated the illegal diversion of AI servers to China, causing the stock to collapse more than 33% in a single day.
A proposed securities fraud lawsuit filed in the Northern District of California alleges that Super Micro Computer, Inc. concealed that a significant portion of its server sales were routed to Chinese customers in violation of U.S. export control laws. The class period runs from April 30, 2024, through March 19, 2026. The stock dropped $10.26 per share, or 33.3%, to close at $20.53 on March 20, 2026, following a U.S. Department of Justice announcement that three individuals associated with the company had been indicted in connection with the alleged scheme.
If you purchased SMCI securities during the class period and incurred losses, you may wish to explore your legal options.
Super Micro Computer: AI Server Maker at the Center of Export Control Allegations
Super Micro Computer, Inc. is a Delaware-incorporated technology company headquartered in San Jose, California, with additional manufacturing operations in Taiwan. The company designs, develops, and manufactures high-performance server and storage systems primarily for customers in artificial intelligence, data center, and cloud solutions. Its product offerings include complete servers, storage systems, modular blade servers, workstations, full rack-scale solutions, networking devices, server subsystems, and server management software. Super Micro’s flagship products integrate Nvidia Corporation graphics processing units, which are subject to strict U.S. export controls barring their sale to China without a license.
Alleged Scheme to Divert AI Servers to China While Misleading Investors
The lawsuit alleges that throughout the class period, Super Micro and its senior executives made materially false and misleading statements about the company’s business, operations, and prospects while failing to disclose that a significant portion of its server sales were being diverted to customers in China without the required U.S. export licenses. The complaint further alleges that there were material weaknesses in the company’s internal controls designed to ensure compliance with applicable export control laws. According to the allegations, company insiders used a Southeast Asia-based intermediary as a pass-through entity to disguise the true end customers in China, fabricating documents and staging bogus equipment to pass audit inventories.
This case centers on allegations that Super Micro concealed from investors the nature and source of a portion of its revenue growth, even though those sales allegedly depended on conduct that violated federal law. Investors following the case can monitor developments and review information about potential rights.
If you are following this case and want to stay informed about developments, information on investor rights is available.
Management Touted Record Growth While Allegedly Concealing the Source of Sales
Throughout the class period, CEO Charles Liang made a series of public statements attributing the company’s strong revenue performance to legitimate demand drivers. In April 2024, Liang stated that the company had achieved year-over-year revenue growth of 200% and non-GAAP earnings per share growth of 308%, attributing this to strong demand for AI rack scale solutions and the company’s ability to develop innovative cooling designs. In August 2024, Liang announced that fiscal year 2024 revenue reached $14.9 billion, up 110% year over year, and described the results as driven by record demand for new AI infrastructure.
In subsequent quarters, Liang continued to promote robust customer engagement and accelerate demand. In October 2025, he stated that the company was seeing outstanding levels of customer engagement for newly released AI liquid-cooled solutions, and reiterated revenue guidance of at least $33 billion for fiscal year 2026. These statements, the complaint alleges, were materially misleading because they failed to disclose that a material portion of the company’s revenues derived from transactions that allegedly violated U.S. export control laws.
DOJ Indictment Triggers Stock Collapse
On March 19, 2026, after the close of trading, the U.S. Department of Justice announced the unsealing of an indictment against three individuals associated with Super Micro, alleging a scheme to divert large quantities of AI servers to Chinese customers in violation of export control laws. The indicted individuals were identified as Yih-Shyan Liaw, Super Micro’s co-founder, board member, and Senior Vice President of Business Development; Ruei-Tsang Chang, a general manager in the company’s Taiwan office; and Ting-Wei Sun, a third-party broker. The DOJ alleged that between 2024 and 2025, approximately $2.5 billion worth of servers were sold through the scheme, with at least approximately $510 million worth diverted to China between late April and mid-May 2025 alone.
On the same date, Super Micro issued a statement confirming the charged individuals had been affiliated with the company, placing the two employees on administrative leave and terminating the contractor relationship. The company noted it had not been named as a direct defendant and stated it had been cooperating fully with the government’s investigation. Following this disclosure, Super Micro’s stock fell $10.26, or 33.3%, to close at $20.53 per share on March 20, 2026, on unusually heavy trading volume.
What the Alleged Misconduct Means for Shareholders
The lawsuit alleges that investors who purchased Super Micro securities during the class period did so at artificially inflated prices because the company’s positive statements about revenue growth and business operations failed to disclose the alleged underlying export control violations. The complaint contends that the company’s revenue figures were materially misleading because they included revenues derived from transactions that the DOJ has alleged involved unlawful diversion of AI servers. When the alleged truth emerged in the DOJ announcement, the resulting decline in the stock price caused significant financial harm to investors who had purchased shares in reliance on the integrity of the company’s public disclosures.
The company’s share price reached a class-period high of $95.24 on May 15, 2024, making the subsequent collapse to $20.53 particularly damaging for investors who held shares throughout the period. The complaint frames this as a direct result of the defendants’ concealing the nature and origins of a material portion of the company’s revenues.
Legal Claims Brought Against Super Micro and Its Senior Executives
The complaint asserts two claims under the Securities Exchange Act of 1934. The first claim, brought against all defendants under Section 10(b) and Rule 10b-5, alleges that the defendants employed devices, schemes, and artifices to defraud investors by making untrue statements of material fact and omitting information necessary to make their statements not misleading. The second claim, brought under Section 20(a) against CEO Charles Liang and CFO David Weigand as controlling persons, alleges they had the power to influence and control the dissemination of materially false and misleading statements throughout the class period.
Investors who purchased SMCI securities between April 30, 2024, and March 19, 2026, and suffered losses, may want to review their rights in connection with this action.
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