MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

SIRIOS CAPITAL MANAGEMENT L P's Holding History (CIK: 0001104883)

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

Q4 2025

Shares 2,464 Value ($000) $2,233 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 2,645 Value ($000) $2,435 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 3,318 Value ($000) $2,427 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 5,321 Value ($000) $3,086 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 1,947 Value ($000) $1,152 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 1,220 Value ($000) $1,128 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 908 Value ($000) $746 Avg Close $712.18 Range $577.26 - $845.04

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,464	$2,233	$960.73	$831.77 - $1121.48
Q3 2025	2,645	$2,435	$808.07	$684.50 - $934.81
Q2 2025	3,318	$2,427	$633.58	$436.42 - $750.80
Q1 2025	5,321	$3,086	$624.99	$550.94 - $718.03
Q4 2024	1,947	$1,152	$716.72	$541.09 - $944.19
Q3 2024	1,220	$1,128	$853.35	$721.11 - $948.49
Q2 2024	908	$746	$712.18	$577.26 - $845.04