MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

SIT INVESTMENT ASSOCIATES INC's Holding History (CIK: 0000769317)

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

Q4 2025

Shares 15,916 Value ($000) $14 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 16,171 Value ($000) $15 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 16,591 Value ($000) $12 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 16,591 Value ($000) $10 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 16,512 Value ($000) $10 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 16,509 Value ($000) $15 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 14,994 Value ($000) $12 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 15,056 Value ($000) $10 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 15,186 Value ($000) $10 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 16,376 Value ($000) $8 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 16,791 Value ($000) $9 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 16,816 Value ($000) $8 Avg Close $449.31 Range $331.60 - $518.64

Q4 2022

Shares 17,041 Value ($000) $6 Avg Close $350.38 Range $294.21 - $405.83

Q3 2022

Shares 16,923 Value ($000) $6,150 Avg Close $432.95 Range $338.72 - $526.93

Q2 2022

Shares 15,708 Value ($000) $6,033 Avg Close $410.37 Range $365.38 - $475.87

Q1 2022

Shares 14,518 Value ($000) $7,051 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 15,143 Value ($000) $7,470 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 15,105 Value ($000) $7,321 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 18,485 Value ($000) $6,903 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 20,210 Value ($000) $7,138 Avg Close $351.26 Range $290.78 - $392.28

Q4 2020

Shares 20,335 Value ($000) $7,447 Avg Close $308.64 Range $261.69 - $353.99

Q3 2020

Shares 20,935 Value ($000) $5,854 Avg Close $250.15 Range $223.49 - $273.49

Q2 2020

Shares 19,710 Value ($000) $4,671 Avg Close $194.18 Range $144.85 - $229.19

Q1 2020

Shares 19,760 Value ($000) $3,309 Avg Close $163.85 Range $124.42 - $184.64

Q4 2019

Shares 19,760 Value ($000) $3,518 Avg Close $152.39 Range $125.11 - $175.03

Q3 2019

Shares 17,360 Value ($000) $2,702 Avg Close $142.31 Range $127.77 - $155.32

Q2 2019

Shares 17,360 Value ($000) $2,357 Avg Close $129.05 Range $108.95 - $152.95

Q1 2019

Shares 17,360 Value ($000) $2,352 Avg Close $124.16 Range $101.64 - $137.81

Q4 2018

Shares 17,360 Value ($000) $2,018 Avg Close $112.91 Range $96.22 - $130.06

Q3 2018

Shares 13,160 Value ($000) $1,652 Avg Close $131.20 Range $117.51 - $143.26

Q2 2018

Shares 22,060 Value ($000) $2,949 Avg Close $119.62 Range $102.58 - $133.88

Q1 2018

Shares 22,060 Value ($000) $2,554 Avg Close $111.03 Range $96.61 - $119.53

Q4 2017

Shares 21,700 Value ($000) $2,438 Avg Close $108.54 Range $98.18 - $118.56

Q3 2017

Shares 21,700 Value ($000) $2,312 Avg Close $94.77 Range $87.95 - $100.67

Q2 2017

Shares 22,150 Value ($000) $2,135 Avg Close $88.76 Range $82.13 - $96.78

Q1 2017

Shares 22,400 Value ($000) $2,063 Avg Close $82.35 Range $76.05 - $87.81

Q4 2016

Shares 17,800 Value ($000) $1,458 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 17,275 Value ($000) $1,391 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 17,275 Value ($000) $1,180 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 13,225 Value ($000) $842 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 2,050 Value ($000) $131 Avg Close $56.88 Range $45.12 - $63.43

Q3 2015

Shares 2,050 Value ($000) $105 Avg Close $45.23 Range $37.18 - $48.10

Q2 2015

Shares 1,675 Value ($000) $85 Avg Close $48.11 Range $44.76 - $50.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	15,916	$14	$960.73	$831.77 - $1121.48
Q3 2025	16,171	$15	$808.07	$684.50 - $934.81
Q2 2025	16,591	$12	$633.58	$436.42 - $750.80
Q1 2025	16,591	$10	$624.99	$550.94 - $718.03
Q4 2024	16,512	$10	$716.72	$541.09 - $944.19
Q3 2024	16,509	$15	$853.35	$721.11 - $948.49
Q2 2024	14,994	$12	$712.18	$577.26 - $845.04
Q1 2024	15,056	$10	$657.62	$552.66 - $766.48
Q4 2023	15,186	$10	$513.84	$385.61 - $636.41
Q3 2023	16,376	$8	$501.94	$430.22 - $584.79
Q2 2023	16,791	$9	$465.29	$375.28 - $542.22
Q1 2023	16,816	$8	$449.31	$331.60 - $518.64
Q4 2022	17,041	$6	$350.38	$294.21 - $405.83
Q3 2022	16,923	$6,150	$432.95	$338.72 - $526.93
Q2 2022	15,708	$6,033	$410.37	$365.38 - $475.87
Q1 2022	14,518	$7,051	$422.77	$340.68 - $499.27
Q4 2021	15,143	$7,470	$500.08	$444.81 - $561.94
Q3 2021	15,105	$7,321	$440.15	$351.70 - $504.81
Q2 2021	18,485	$6,903	$340.03	$291.31 - $382.48
Q1 2021	20,210	$7,138	$351.26	$290.78 - $392.28
Q4 2020	20,335	$7,447	$308.64	$261.69 - $353.99
Q3 2020	20,935	$5,854	$250.15	$223.49 - $273.49
Q2 2020	19,710	$4,671	$194.18	$144.85 - $229.19
Q1 2020	19,760	$3,309	$163.85	$124.42 - $184.64
Q4 2019	19,760	$3,518	$152.39	$125.11 - $175.03
Q3 2019	17,360	$2,702	$142.31	$127.77 - $155.32
Q2 2019	17,360	$2,357	$129.05	$108.95 - $152.95
Q1 2019	17,360	$2,352	$124.16	$101.64 - $137.81
Q4 2018	17,360	$2,018	$112.91	$96.22 - $130.06
Q3 2018	13,160	$1,652	$131.20	$117.51 - $143.26
Q2 2018	22,060	$2,949	$119.62	$102.58 - $133.88
Q1 2018	22,060	$2,554	$111.03	$96.61 - $119.53
Q4 2017	21,700	$2,438	$108.54	$98.18 - $118.56
Q3 2017	21,700	$2,312	$94.77	$87.95 - $100.67
Q2 2017	22,150	$2,135	$88.76	$82.13 - $96.78
Q1 2017	22,400	$2,063	$82.35	$76.05 - $87.81
Q4 2016	17,800	$1,458	$74.44	$69.57 - $81.67
Q3 2016	17,275	$1,391	$68.33	$60.21 - $75.04
Q2 2016	17,275	$1,180	$60.38	$55.33 - $65.50
Q1 2016	13,225	$842	$54.76	$50.58 - $59.11
Q4 2015	2,050	$131	$56.88	$45.12 - $63.43
Q3 2015	2,050	$105	$45.23	$37.18 - $48.10
Q2 2015	1,675	$85	$48.11	$44.76 - $50.50