Form 4: Monolithic Power CEO Gifts Shares to Foundation

Monolithic Power Systems CEO Michael Hsing reported a gift of 12,337 shares of common stock to a 501(c)(3) foundation.

Summary

• Michael Hsing, CEO and Director of Monolithic Power Systems Inc. (MPWR), reported a gift of common stock.
• On December 9, 2025, Hsing transferred 12,337 shares from his direct holdings.
• The shares were gifted to a 501(c)(3) foundation.
• No funds were exchanged, and no sale of shares occurred in this transaction.
• Following the gift, Hsing directly beneficially owns 906,332 shares of Common Stock.
• He also indirectly beneficially owns 133,040 shares via the M Hsing 04 Trust and 12,825 shares via the ZH Family 2020 Trust.
• The company confirmed that Hsing retains no management, investment control, or pecuniary interest in the gifted shares after the transfer.

Sentiment

Score: 5

Explanation: Neutral. The filing reports a personal gift of shares by the CEO, which is a routine insider transaction and does not reflect on the company's operational or financial performance.

Positives

• Demonstrates philanthropic activity by the CEO.
• The company explicitly states the reporting person does not have any management or investment control or any other pecuniary interest in the shares after the transfer, ensuring a clean separation.

Negatives

• A slight reduction in the CEO's direct beneficial ownership, though this is a gift and not a sale.

Future Outlook

N/A. This filing reports a past transaction and does not contain forward-looking statements or guidance.

Management Comments

• The Company has determined that the reporting person does not have any management or investment control or any other pecuniary interest in the shares after the transfer.

Industry Context

This insider transaction is a personal financial event for the CEO and does not directly relate to broader industry trends or competitive dynamics.

Comparison to Industry Standards

• N/A. This filing reports a personal insider transaction (gift) and does not contain performance metrics or operational results that can be compared to industry benchmarks or specific companies/projects.

Related Party Transactions

• Transfer of 12,337 shares by gift from Michael Hsing to a 501(c)(3) foundation. The company states no pecuniary interest for Hsing post-transfer.

Stakeholder Impact

• Shareholders: Minor, as the shares were gifted and not sold on the open market, thus not directly impacting market liquidity or price. The reduction in direct ownership is negligible relative to total shares outstanding.
• Community/Philanthropic Organizations: Positive, as a 501(c)(3) foundation received a significant gift of shares.

Key Dates

Keywords

Monolithic Power Systems, MPWR, Michael Hsing, Insider Transaction, Form 4, Stock Gift, CEO, Philanthropy, Common Stock