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Johnson Fistel Investigates Monolithic Power Systems on Behalf of Long-Term Shareholders

1. Investigation into MPWR officers for fiduciary breaches has commenced. 2. Allegations include misleading statements about product quality issues. 3. Defects reportedly hurt Nvidia's products relying on MPWR's components. 4. Irreparable damage to MPWR's relationship with Nvidia is claimed. 5. Stockholders before February 2024 encouraged to explore legal rights.

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FAQ

Why Very Bearish?

The allegations outline severe quality issues that could harm MPWR's reputation and sales, similar to past incidents in tech sectors where lawsuits over product quality drastically affected stock prices.

How important is it?

Given the high stakes involving a major customer and potential legal repercussions, this situation is crucial for MPWR's stakeholders.

Why Short Term?

Immediate investor concern over legal issues typically results in short-term price declines, as seen with other tech firms facing class-action lawsuits.

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NVDAQCOMTXN
SAN DIEGO, Oct. 01, 2025 (GLOBE NEWSWIRE) -- Johnson Fistel, PLLP, a leading stockholder rights law firm, is investigating potential claims on behalf of Monolithic Power Systems, Inc. (NASDAQ: MPWR) against certain officers and directors for breaches of fiduciary duties and violations of federal securities laws. What is Johnson Fistel Investigating?A previously filed securities fraud class action Complaint alleges that, Monolithic Power Systems, Inc., via certain of its officers, made false and/or misleading statements and/or failed to disclose that: (i) Monolithic’s voltage regulator modules and power management integrated circuits were suffering from significant performance and quality control issues; (ii) these defects had, in turn, negatively impacted the performance of certain products offered by Nvidia in which such products were used; (iii) Monolithic had failed to adequately address and resolve known issues affecting the performance of the power management solutions Monolithic supplied to Nvidia; (iv) Monolithic’s relationship with Nvidia - the Company's most important customer - had been irreparably damaged due to the significant performance and quality control problems affecting the products it supplied to Nvidia and Monolithic’s failure to adequately address such issues; and (v) as a result of the above, Monolithic was acutely exposed to material undisclosed risks of significant business, financial, and reputational harm. Stock Purchasers Before February 8, 2024 Have Rights:Current, long-term stockholders who have continuously held their Monolithic Power Systems shares before February 8, 2024 are encouraged to contact Johnson Fistel to discuss their legal rights in this matter. You can click or copy and paste the following link to join this action: https://www.johnsonfistel.com/investigations/monolithic-power-systems-inc/ About Johnson Fistel, PLLPJohnson Fistel, PLLP is a nationally recognized shareholder rights law firm with offices in California, New York, Georgia, Idaho, and Colorado. The firm represents individual and institutional investors in shareholder derivative and securities class action lawsuits. For more information about the firm and its attorneys, please visit http://www.johnsonfistel.com. Attorney advertising.Past results do not guarantee future outcomes.Services may be performed by attorneys in any of our offices.Johnson Fistel, PLLP has paid for the dissemination of this promotional communication, and Frank J. Johnson is the attorney responsible for its content. Contact:Johnson Fistel, PLLP501 W. Broadway, Suite 800, San Diego, CA 92101James Baker, Investor Relations or Frank J. Johnson, Esq., (619) 814-4471jimb@johnsonfistel.com or fjohnson@johnsonfistel.com 

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