Form 4 for MPWR Monolithic Power Systems

Accepted 2023-02-08 00:00:00 ET · period of report 2023-02-06 · accession 0001214659-23-001833 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
	2023-02-08	2023-02-07	MPWR	Xiao Deming	Pres. of MPS Asia Ops	A - Grant	$0.00	+34.7K	285.7K	+14%	$0
	2023-02-08	2023-02-06	MPWR	Xiao Deming	Pres. of MPS Asia Ops	S - Sale	$446.88	-723	251.0K	-0.3%	-$323.1K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2023-02-07	A	A	34,740	$0.00	285,694	D	—	—	(F2) On February 2, 2021, the reporting person was granted a target of 11,580 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 7, 2023, 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 23,160 additional shares being earned by the reporting person. Of the 34,740 restricted stock units that were awarded, 17,370 will vest immediately and 17,370 will vest quarterly in the next two years.
2	Common	Common Stock	2023-02-06	S	D	723	$446.88	250,954	D	—	—	(F1) The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan.