MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

Investment Management Corp of Ontario's Holding History (CIK: 0001811568)

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

Q4 2025

Shares 4,195 Value ($000) $3,802 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 2,282 Value ($000) $2,101 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 1,719 Value ($000) $1,257 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 2,403 Value ($000) $1,394 Avg Close $624.99 Range $550.94 - $718.03

Q3 2024

Shares 1,579 Value ($000) $1,460 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 1,079 Value ($000) $887 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 779 Value ($000) $528 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 1,079 Value ($000) $681 Avg Close $513.84 Range $385.61 - $636.41

Q4 2022

Shares 5,612 Value ($000) $1,984 Avg Close $350.38 Range $294.21 - $405.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,195	$3,802	$960.73	$831.77 - $1121.48
Q3 2025	2,282	$2,101	$808.07	$684.50 - $934.81
Q2 2025	1,719	$1,257	$633.58	$436.42 - $750.80
Q1 2025	2,403	$1,394	$624.99	$550.94 - $718.03
Q3 2024	1,579	$1,460	$853.35	$721.11 - $948.49
Q2 2024	1,079	$887	$712.18	$577.26 - $845.04
Q1 2024	779	$528	$657.62	$552.66 - $766.48
Q4 2023	1,079	$681	$513.84	$385.61 - $636.41
Q4 2022	5,612	$1,984	$350.38	$294.21 - $405.83