MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

Arizona State Retirement System's Holding History (CIK: 0001558481)

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

Q4 2025

Shares 13,128 Value ($000) $11,899 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 14,117 Value ($000) $12,997 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 13,959 Value ($000) $10,209 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 14,087 Value ($000) $8,170 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 14,140 Value ($000) $8,367 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 13,945 Value ($000) $12,892 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 13,367 Value ($000) $10,983 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 13,178 Value ($000) $8,927 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 12,475 Value ($000) $7,869 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 12,291 Value ($000) $5,678 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 12,264 Value ($000) $6,625 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 12,965 Value ($000) $6,490 Avg Close $449.31 Range $331.60 - $518.64

Q4 2022

Shares 12,581 Value ($000) $4,449 Avg Close $350.38 Range $294.21 - $405.83

Q3 2022

Shares 12,166 Value ($000) $4,421 Avg Close $432.95 Range $338.72 - $526.93

Q2 2022

Shares 12,331 Value ($000) $4,736 Avg Close $410.37 Range $365.38 - $475.87

Q1 2022

Shares 12,189 Value ($000) $5,920 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 11,878 Value ($000) $5,860 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 12,198 Value ($000) $5,912 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 12,155 Value ($000) $4,539 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 12,352 Value ($000) $4,363 Avg Close $351.26 Range $290.78 - $392.28

Q4 2020

Shares 12,235 Value ($000) $4,481 Avg Close $308.64 Range $261.69 - $353.99

Q3 2020

Shares 12,824 Value ($000) $3,586 Avg Close $250.15 Range $223.49 - $273.49

Q2 2020

Shares 9,564 Value ($000) $2,267 Avg Close $194.18 Range $144.85 - $229.19

Q1 2020

Shares 9,688 Value ($000) $1,622 Avg Close $163.85 Range $124.42 - $184.64

Q4 2019

Shares 22,909 Value ($000) $4,078 Avg Close $152.39 Range $125.11 - $175.03

Q3 2019

Shares 25,064 Value ($000) $3,901 Avg Close $142.31 Range $127.77 - $155.32

Q2 2019

Shares 28,750 Value ($000) $3,904 Avg Close $129.05 Range $108.95 - $152.95

Q1 2019

Shares 28,351 Value ($000) $3,841 Avg Close $124.16 Range $101.64 - $137.81

Q4 2018

Shares 28,005 Value ($000) $3,256 Avg Close $112.91 Range $96.22 - $130.06

Q3 2018

Shares 27,632 Value ($000) $3,469 Avg Close $131.20 Range $117.51 - $143.26

Q2 2018

Shares 26,946 Value ($000) $3,602 Avg Close $119.62 Range $102.58 - $133.88

Q1 2018

Shares 26,192 Value ($000) $3,032 Avg Close $111.03 Range $96.61 - $119.53

Q4 2017

Shares 27,492 Value ($000) $3,089 Avg Close $108.54 Range $98.18 - $118.56

Q3 2017

Shares 21,541 Value ($000) $2,295 Avg Close $94.77 Range $87.95 - $100.67

Q2 2017

Shares 16,000 Value ($000) $1,542 Avg Close $88.76 Range $82.13 - $96.78

Q1 2017

Shares 15,800 Value ($000) $1,455 Avg Close $82.35 Range $76.05 - $87.81

Q4 2016

Shares 14,400 Value ($000) $1,180 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 16,600 Value ($000) $1,336 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 19,222 Value ($000) $1,313 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 19,022 Value ($000) $1,211 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 18,022 Value ($000) $1,148 Avg Close $56.88 Range $45.12 - $63.43

Q3 2015

Shares 17,522 Value ($000) $897 Avg Close $45.23 Range $37.18 - $48.10

Q4 2014

Shares 25,200 Value ($000) $1,253 Avg Close $40.54 Range $30.68 - $45.83

Q3 2014

Shares 25,000 Value ($000) $1,101 Avg Close $39.57 Range $36.40 - $43.40

Q2 2014

Shares 25,400 Value ($000) $1,075 Avg Close $34.76 Range $31.35 - $38.50

Q1 2014

Shares 25,100 Value ($000) $973 Avg Close $31.60 Range $27.60 - $35.10

Q4 2013

Shares 27,700 Value ($000) $960 Avg Close $28.65 Range $24.43 - $31.16

Q3 2013

Shares 30,500 Value ($000) $923 Avg Close $25.18 Range $21.26 - $28.18

Q2 2013

Shares 29,100 Value ($000) $701 Avg Close $21.28 Range $18.50 - $22.86

Q1 2013

Shares 28,900 Value ($000) $704 Avg Close $21.41 Range $19.61 - $23.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	13,128	$11,899	$960.73	$831.77 - $1121.48
Q3 2025	14,117	$12,997	$808.07	$684.50 - $934.81
Q2 2025	13,959	$10,209	$633.58	$436.42 - $750.80
Q1 2025	14,087	$8,170	$624.99	$550.94 - $718.03
Q4 2024	14,140	$8,367	$716.72	$541.09 - $944.19
Q3 2024	13,945	$12,892	$853.35	$721.11 - $948.49
Q2 2024	13,367	$10,983	$712.18	$577.26 - $845.04
Q1 2024	13,178	$8,927	$657.62	$552.66 - $766.48
Q4 2023	12,475	$7,869	$513.84	$385.61 - $636.41
Q3 2023	12,291	$5,678	$501.94	$430.22 - $584.79
Q2 2023	12,264	$6,625	$465.29	$375.28 - $542.22
Q1 2023	12,965	$6,490	$449.31	$331.60 - $518.64
Q4 2022	12,581	$4,449	$350.38	$294.21 - $405.83
Q3 2022	12,166	$4,421	$432.95	$338.72 - $526.93
Q2 2022	12,331	$4,736	$410.37	$365.38 - $475.87
Q1 2022	12,189	$5,920	$422.77	$340.68 - $499.27
Q4 2021	11,878	$5,860	$500.08	$444.81 - $561.94
Q3 2021	12,198	$5,912	$440.15	$351.70 - $504.81
Q2 2021	12,155	$4,539	$340.03	$291.31 - $382.48
Q1 2021	12,352	$4,363	$351.26	$290.78 - $392.28
Q4 2020	12,235	$4,481	$308.64	$261.69 - $353.99
Q3 2020	12,824	$3,586	$250.15	$223.49 - $273.49
Q2 2020	9,564	$2,267	$194.18	$144.85 - $229.19
Q1 2020	9,688	$1,622	$163.85	$124.42 - $184.64
Q4 2019	22,909	$4,078	$152.39	$125.11 - $175.03
Q3 2019	25,064	$3,901	$142.31	$127.77 - $155.32
Q2 2019	28,750	$3,904	$129.05	$108.95 - $152.95
Q1 2019	28,351	$3,841	$124.16	$101.64 - $137.81
Q4 2018	28,005	$3,256	$112.91	$96.22 - $130.06
Q3 2018	27,632	$3,469	$131.20	$117.51 - $143.26
Q2 2018	26,946	$3,602	$119.62	$102.58 - $133.88
Q1 2018	26,192	$3,032	$111.03	$96.61 - $119.53
Q4 2017	27,492	$3,089	$108.54	$98.18 - $118.56
Q3 2017	21,541	$2,295	$94.77	$87.95 - $100.67
Q2 2017	16,000	$1,542	$88.76	$82.13 - $96.78
Q1 2017	15,800	$1,455	$82.35	$76.05 - $87.81
Q4 2016	14,400	$1,180	$74.44	$69.57 - $81.67
Q3 2016	16,600	$1,336	$68.33	$60.21 - $75.04
Q2 2016	19,222	$1,313	$60.38	$55.33 - $65.50
Q1 2016	19,022	$1,211	$54.76	$50.58 - $59.11
Q4 2015	18,022	$1,148	$56.88	$45.12 - $63.43
Q3 2015	17,522	$897	$45.23	$37.18 - $48.10
Q4 2014	25,200	$1,253	$40.54	$30.68 - $45.83
Q3 2014	25,000	$1,101	$39.57	$36.40 - $43.40
Q2 2014	25,400	$1,075	$34.76	$31.35 - $38.50
Q1 2014	25,100	$973	$31.60	$27.60 - $35.10
Q4 2013	27,700	$960	$28.65	$24.43 - $31.16
Q3 2013	30,500	$923	$25.18	$21.26 - $28.18
Q2 2013	29,100	$701	$21.28	$18.50 - $22.86
Q1 2013	28,900	$704	$21.41	$19.61 - $23.00