MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

Horizon Investments, LLC's Holding History (CIK: 0001560717)

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

Q4 2025

Shares 1,566 Value ($000) $1,419 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 1,706 Value ($000) $1,571 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 1,535 Value ($000) $1,123 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 688 Value ($000) $399 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 666 Value ($000) $394 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 1,558 Value ($000) $1,440 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 1,641 Value ($000) $1,348 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 831 Value ($000) $563 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 710 Value ($000) $448 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 676 Value ($000) $312 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 630 Value ($000) $340 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 735 Value ($000) $368 Avg Close $449.31 Range $331.60 - $518.64

Q2 2022

Shares 1,106 Value ($000) $425 Avg Close $410.37 Range $365.38 - $475.87

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,566	$1,419	$960.73	$831.77 - $1121.48
Q3 2025	1,706	$1,571	$808.07	$684.50 - $934.81
Q2 2025	1,535	$1,123	$633.58	$436.42 - $750.80
Q1 2025	688	$399	$624.99	$550.94 - $718.03
Q4 2024	666	$394	$716.72	$541.09 - $944.19
Q3 2024	1,558	$1,440	$853.35	$721.11 - $948.49
Q2 2024	1,641	$1,348	$712.18	$577.26 - $845.04
Q1 2024	831	$563	$657.62	$552.66 - $766.48
Q4 2023	710	$448	$513.84	$385.61 - $636.41
Q3 2023	676	$312	$501.94	$430.22 - $584.79
Q2 2023	630	$340	$465.29	$375.28 - $542.22
Q1 2023	735	$368	$449.31	$331.60 - $518.64
Q2 2022	1,106	$425	$410.37	$365.38 - $475.87