Mitsubishi UFJ Asset Management Boosts Monolithic Power Systems Holdings

Japanese investment firm increases stake in semiconductor company by 2.2%

Published on Feb. 28, 2026

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Mitsubishi UFJ Asset Management Co. Ltd. has increased its holdings in Monolithic Power Systems, Inc. (NASDAQ:MPWR) by 2.2% in the third quarter, according to a recent SEC filing. The fund now owns 112,332 shares of the semiconductor company's stock, valued at $103,417,000.

Why it matters

Monolithic Power Systems is a leading designer and supplier of high-performance power management solutions for a wide range of electronic systems. The increase in Mitsubishi UFJ Asset Management's stake suggests the firm sees continued growth potential in the company.

The details

Mitsubishi UFJ Asset Management acquired an additional 2,398 shares of Monolithic Power Systems during the third quarter, bringing its total ownership to 0.23% of the company's outstanding shares. The semiconductor firm focuses on analog and mixed-signal integrated circuits that convert, regulate and monitor electrical power with an emphasis on efficiency, integration and power density.

  • Mitsubishi UFJ Asset Management increased its Monolithic Power Systems holdings in the third quarter of 2025.

The players

Mitsubishi UFJ Asset Management Co. Ltd.

A Japanese investment management firm that has increased its stake in Monolithic Power Systems, a leading semiconductor company.

Monolithic Power Systems, Inc.

An American fabless semiconductor company that designs and supplies high-performance power management solutions for a broad range of electronic systems.

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The takeaway

Mitsubishi UFJ Asset Management's increased investment in Monolithic Power Systems reflects the firm's confidence in the semiconductor company's growth prospects, particularly as demand for efficient power management solutions continues to rise across various industries.