Monolithic Power Systems faces a securities fraud investigation after its stock plunged 30 percent when Nvidia shifted business to competitors over product quality issues. A federal judge ruled on May 6 that key claims in the lawsuit will proceed, and insiders sold over $160 million in stock during the alleged misleading period.
Monolithic Power Systems faces a securities fraud investigation after its stock plunged 30 percent when Nvidia shifted business to competitors over product quality issues.
Schubert Jonckheer & Kolbe LLP, the San Francisco law firm leading the investigation, said it is examining potential legal claims arising from alleged false and misleading statements about the quality and performance of the company's power management integrated circuits and its relationship with a key customer.
U.S. District Judge James L. Robart ruled on May 6 that key claims in a securities fraud lawsuit against Monolithic Power and its CEO and former CFO will move forward. The lawsuit alleges that between February and November 2024, the company misled investors by claiming it had resolved quality issues with its PMICs and that Nvidia continued to integrate those products into its next-generation systems. Company insiders sold more than $160 million in stock during this period.
When the truth emerged in late October and early November 2024 that Nvidia had shifted business to competitors because of persistent quality problems, the stock fell 30 percent. The investigation could expose the company to additional shareholder lawsuits and potential SEC scrutiny, further pressuring shares of the power management chipmaker.
Judge Robart found the complaint sufficiently alleged that the false and misleading statements were made either with an intent to defraud or with deliberate recklessness, according to the law firm's announcement.
Monolithic Power designs and sells power management integrated circuits used in data centers, automotive, and consumer electronics. Nvidia is among its largest customers, integrating MPWR's PMICs into its next-generation GPU systems. The company's PMICs regulate voltage and power delivery in high-performance computing platforms, a critical function as AI workloads drive demand for more efficient power management.
The investigation comes as the semiconductor sector faces heightened scrutiny over supply chain reliability and product quality. Competitors such as Texas Instruments and Analog Devices could benefit if Nvidia's shift away from Monolithic Power becomes permanent. Nvidia's decision to diversify its power management suppliers reflects broader industry pressure to reduce single-source dependencies in critical components.
The lawsuit names Monolithic Power's CEO and former CFO as defendants, alleging they were responsible for the misleading statements. The court's ruling allows the case to proceed to discovery, where plaintiffs will have access to internal company documents and communications.
The investigation raises potential legal exposure for Monolithic Power's directors and officers, and the $160 million in insider sales during the alleged misleading period will likely draw scrutiny from regulators. Current shareholders are encouraged to contact the law firm, and the next development will be any additional court rulings or regulatory actions stemming from the lawsuit.
This article is for informational purposes only and does not constitute investment advice.
