MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

Westerkirk Capital Inc.'s Holding History (CIK: 0002080423)

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

Q4 2025

Shares 2,544 Value ($000) $2,306 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 1,608 Value ($000) $1,480 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 1,608 Value ($000) $1,176 Avg Close $633.58 Range $436.42 - $750.80

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,544	$2,306	$960.73	$831.77 - $1121.48
Q3 2025	1,608	$1,480	$808.07	$684.50 - $934.81
Q2 2025	1,608	$1,176	$633.58	$436.42 - $750.80