MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

Empirical Financial Services, LLC d.b.a. Empirical Wealth Management's Holding History (CIK: 0001510434)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 4,699 Value ($000) $4,259 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 4,177 Value ($000) $3,846 Avg Close $808.07 Range $684.50 - $934.81

Q4 2021

Shares 1,479 Value ($000) $730 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 2,040 Value ($000) $989 Avg Close $440.15 Range $351.70 - $504.81

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,699	$4,259	$960.73	$831.77 - $1121.48
Q3 2025	4,177	$3,846	$808.07	$684.50 - $934.81
Q4 2021	1,479	$730	$500.08	$444.81 - $561.94
Q3 2021	2,040	$989	$440.15	$351.70 - $504.81