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MONOLITHIC POWER SYSTEMS INC Director's Dealing 2025

Sep 23, 2025

30057_dirs_2025-09-23_835f76eb-898b-434c-a621-40606fbc653f.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2025-09-18

Reporting Person: Tseng Saria (N/A)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2025-09-18 Common Stock S 14510 $914.45 Disposed 144494 Direct

Footnotes

F1: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 8/30/2024.

F2: Ending balance includes 27 shares acquired on February 17, 2025 through the Company's qualified ESPP program.