• MPS CEO Michael Hsing sold 29,? shares of common stock on Sept. 28, 2026 under a 10b5-1 plan.
• Sales were reported at weighted-average prices ranging from $1,323.31 to $1,356.94 per share.
• Directly held stake fell to 818,264 shares following the transactions.
• He also reported indirect holdings of 133,040 shares via the M Hsing 04 Trust.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. MPS - Monolithic Power Systems Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001214659-26-012375), on September 30, 2026, and is solely responsible for the information contained therein.