THEODORE BLEGEN - 03 Feb 2022 Form 4 Insider Report for MONOLITHIC POWER SYSTEMS INC (MPWR)

Role: CFO
Signature: /s/ Saria Tseng, attorney-in-fact for Mr. Bernie Blegen
Issuer symbol: MPWR
Transactions as of: 03 Feb 2022
Transactions value $: $0
Form type: 4
Filing time: 04 Feb 2022, 16:05:15 UTC
Previous filing: 24 Jan 2022
Next filing: 09 Feb 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MPWR	common stock	Award	$0	+27,174	+23%	$0	143,492	03 Feb 2022	Direct	F1
holding	MPWR	Common Stock						5,331	03 Feb 2022	Irrevocable Trust FBO Theodore F. Blegen
holding	MPWR	Common Stock						5,331	03 Feb 2022	Irrevocable Trust FBO Sarah N. Blegen

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On February 4, 2020, the reporting person was granted a target of 9,058 shares of restricted stock units, with the right to earn up to 300% of the target shares, subject to satisfaction of pre-determined, performance-based vesting criteria. On February 3, 2022, the Company's Compensation Committee of the Board of Directors determined and approved the achievement of the performance criteria for the restricted stock units, which resulted in 18,116 additional shares being earned by the reporting person. Of the restricted stock units that were awarded, 13,587 will vest immediately and 13,587 will vest quarterly in the next two years.

Content

On February 4, 2020, the reporting person was granted a target of 9,058 shares of restricted stock units, with the right to earn up to 300% of the target shares, subject to satisfaction of pre-determined, performance-based vesting criteria. On February 3, 2022, the Company's Compensation Committee of the Board of Directors determined and approved the achievement of the performance criteria for the restricted stock units, which resulted in 18,116 additional shares being earned by the reporting person. Of the restricted stock units that were awarded, 13,587 will vest immediately and 13,587 will vest quarterly in the next two years.