10-KPeriod: FY2025

MONOLITHIC POWER SYSTEMS INC Annual Report, Year Ended Dec 31, 2025

Filed February 27, 2026For Securities:MPWR

Summary

Monolithic Power Systems, Inc. (MPWR) has filed its 10-K for the fiscal year ended December 31, 2025. A significant event disclosed is the restatement of financial statements for the fiscal year ended December 31, 2024, and certain quarterly periods in 2025, due to an accounting error related to deferred income taxes from a foreign tax incentive. This restatement has led to the identification of a material weakness in internal controls over financial reporting concerning deferred income taxes, impacting investor confidence and requiring remediation efforts. Despite the restatement and internal control issues, the company reported substantial revenue growth for 2025, driven by increased shipment volumes across most end markets, with Storage and Computing and Enterprise Data being the largest. However, gross margins saw a slight decrease due to higher warranty expenses. Research and development and selling, general, and administrative expenses increased, largely due to higher compensation costs. The company also announced a significant increase in its quarterly cash dividend and continues its stock repurchase program, demonstrating a commitment to returning capital to shareholders.

Financial Statements
Beta

Key Highlights

  • 1Monolithic Power Systems (MPWR) reported strong revenue growth of 26.4% in 2025, reaching $2.8 billion, driven by increased shipment volumes.
  • 2The company restated its 2024 annual and 2025 quarterly financial statements due to an accounting error related to deferred income taxes, leading to a material weakness in internal controls.
  • 3Storage and Computing and Enterprise Data remained the largest end markets in 2025, with notable revenue increases in Automotive and Communications.
  • 4Gross margin slightly decreased to 55.2% in 2025 from 55.3% in 2024, primarily due to higher warranty expenses.
  • 5Research and Development (R&D) expenses increased by 17.7% and Selling, General, and Administrative (SG&A) expenses increased by 20.2%, driven by compensation and operational growth.
  • 6The company declared a significant increase in its quarterly cash dividend to $2.00 per share.
  • 7A material weakness in internal control over financial reporting was identified concerning the accounting for deferred income taxes.

Frequently Asked Questions

The restatement of financial statements for the fiscal year ended December 31, 2024, and certain quarterly periods in 2025, along with the identification of a material weakness in internal control over financial reporting related to deferred income taxes, could affect investor confidence. The company is implementing remediation plans to address this weakness.

The company experienced strong revenue growth in 2025, increasing by 26.4% to $2.8 billion. This growth was primarily driven by higher shipment volumes across most end markets, including Storage and Computing, Enterprise Data, Automotive, and Communications.

Monolithic Power Systems has increased its quarterly cash dividend to $2.00 per share. The company also has an active stock repurchase program, with approximately $493.4 million remaining for future repurchases as of December 31, 2025, indicating a continued focus on returning capital to shareholders.

Key risks identified in the filing include significant operations in Asia (particularly China), exposure to global economic conditions and trade policies, dependence on key suppliers and distributors, the cyclical nature of the semiconductor industry, intellectual property risks, and cybersecurity threats. The material weakness in internal controls also presents a significant risk.