MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

FMR LLC's Holding History (CIK: 0000315066)

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

Q4 2025

Shares 3,977,008 Value ($000) $3,604,601 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 3,564,796 Value ($000) $3,281,895 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 3,392,704 Value ($000) $2,481,356 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 3,498,709 Value ($000) $2,029,182 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 3,118,147 Value ($000) $1,845,008 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 3,519,376 Value ($000) $3,253,664 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 3,157,960 Value ($000) $2,594,833 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 2,809,370 Value ($000) $1,903,124 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 2,528,125 Value ($000) $1,594,691 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 3,583,803 Value ($000) $1,655,717 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 2,654,794 Value ($000) $1,434,199 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 1,757,149 Value ($000) $879,524 Avg Close $449.31 Range $331.60 - $518.64

Q4 2022

Shares 1,463,823 Value ($000) $517,623 Avg Close $350.38 Range $294.21 - $405.83

Q3 2022

Shares 1,270,998 Value ($000) $461,882 Avg Close $432.95 Range $338.72 - $526.93

Q2 2022

Shares 795,879 Value ($000) $305,648 Avg Close $410.37 Range $365.38 - $475.87

Q1 2022

Shares 352,022 Value ($000) $170,969 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 346,920 Value ($000) $171,146 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 296,732 Value ($000) $143,820 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 233,217 Value ($000) $87,094 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 368,670 Value ($000) $130,217 Avg Close $351.26 Range $290.78 - $392.28

Q4 2020

Shares 171,808 Value ($000) $62,921 Avg Close $308.64 Range $261.69 - $353.99

Q3 2020

Shares 179,644 Value ($000) $50,230 Avg Close $250.15 Range $223.49 - $273.49

Q2 2020

Shares 290,392 Value ($000) $68,823 Avg Close $194.18 Range $144.85 - $229.19

Q1 2020

Shares 205,674 Value ($000) $34,442 Avg Close $163.85 Range $124.42 - $184.64

Q4 2019

Shares 168,162 Value ($000) $29,936 Avg Close $152.39 Range $125.11 - $175.03

Q3 2019

Shares 559,631 Value ($000) $87,096 Avg Close $142.31 Range $127.77 - $155.32

Q2 2019

Shares 614,692 Value ($000) $83,463 Avg Close $129.05 Range $108.95 - $152.95

Q1 2019

Shares 840,654 Value ($000) $113,899 Avg Close $124.16 Range $101.64 - $137.81

Q4 2018

Shares 1,432,704 Value ($000) $166,552 Avg Close $112.91 Range $96.22 - $130.06

Q3 2018

Shares 1,388,348 Value ($000) $174,279 Avg Close $131.20 Range $117.51 - $143.26

Q2 2018

Shares 1,664,628 Value ($000) $222,511 Avg Close $119.62 Range $102.58 - $133.88

Q1 2018

Shares 1,733,046 Value ($000) $200,635 Avg Close $111.03 Range $96.61 - $119.53

Q4 2017

Shares 2,094,684 Value ($000) $235,359 Avg Close $108.54 Range $98.18 - $118.56

Q3 2017

Shares 2,257,074 Value ($000) $240,491 Avg Close $94.77 Range $87.95 - $100.67

Q2 2017

Shares 3,158,057 Value ($000) $304,437 Avg Close $88.76 Range $82.13 - $96.78

Q1 2017

Shares 3,298,697 Value ($000) $303,811 Avg Close $82.35 Range $76.05 - $87.81

Q4 2016

Shares 3,415,994 Value ($000) $279,873 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 3,654,192 Value ($000) $294,162 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 3,740,313 Value ($000) $255,539 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 3,877,992 Value ($000) $246,795 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 4,139,216 Value ($000) $263,710 Avg Close $56.88 Range $45.12 - $63.43

Q3 2015

Shares 4,464,863 Value ($000) $228,601 Avg Close $45.23 Range $37.18 - $48.10

Q2 2015

Shares 4,669,781 Value ($000) $236,804 Avg Close $48.11 Range $44.76 - $50.50

Q1 2015

Shares 4,514,277 Value ($000) $237,677 Avg Close $45.64 Range $40.76 - $50.87

Q4 2014

Shares 3,881,591 Value ($000) $193,070 Avg Close $40.54 Range $30.68 - $45.83

Q3 2014

Shares 4,069,166 Value ($000) $179,246 Avg Close $39.57 Range $36.40 - $43.40

Q2 2014

Shares 4,245,226 Value ($000) $179,785 Avg Close $34.76 Range $31.35 - $38.50

Q1 2014

Shares 4,011,231 Value ($000) $155,516 Avg Close $31.60 Range $27.60 - $35.10

Q4 2013

Shares 4,140,291 Value ($000) $143,502 Avg Close $28.65 Range $24.43 - $31.16

Q3 2013

Shares 4,147,770 Value ($000) $125,594 Avg Close $25.18 Range $21.26 - $28.18

Q2 2013

Shares 3,698,590 Value ($000) $89,173 Avg Close $21.28 Range $18.50 - $22.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,977,008	$3,604,601	$960.73	$831.77 - $1121.48
Q3 2025	3,564,796	$3,281,895	$808.07	$684.50 - $934.81
Q2 2025	3,392,704	$2,481,356	$633.58	$436.42 - $750.80
Q1 2025	3,498,709	$2,029,182	$624.99	$550.94 - $718.03
Q4 2024	3,118,147	$1,845,008	$716.72	$541.09 - $944.19
Q3 2024	3,519,376	$3,253,664	$853.35	$721.11 - $948.49
Q2 2024	3,157,960	$2,594,833	$712.18	$577.26 - $845.04
Q1 2024	2,809,370	$1,903,124	$657.62	$552.66 - $766.48
Q4 2023	2,528,125	$1,594,691	$513.84	$385.61 - $636.41
Q3 2023	3,583,803	$1,655,717	$501.94	$430.22 - $584.79
Q2 2023	2,654,794	$1,434,199	$465.29	$375.28 - $542.22
Q1 2023	1,757,149	$879,524	$449.31	$331.60 - $518.64
Q4 2022	1,463,823	$517,623	$350.38	$294.21 - $405.83
Q3 2022	1,270,998	$461,882	$432.95	$338.72 - $526.93
Q2 2022	795,879	$305,648	$410.37	$365.38 - $475.87
Q1 2022	352,022	$170,969	$422.77	$340.68 - $499.27
Q4 2021	346,920	$171,146	$500.08	$444.81 - $561.94
Q3 2021	296,732	$143,820	$440.15	$351.70 - $504.81
Q2 2021	233,217	$87,094	$340.03	$291.31 - $382.48
Q1 2021	368,670	$130,217	$351.26	$290.78 - $392.28
Q4 2020	171,808	$62,921	$308.64	$261.69 - $353.99
Q3 2020	179,644	$50,230	$250.15	$223.49 - $273.49
Q2 2020	290,392	$68,823	$194.18	$144.85 - $229.19
Q1 2020	205,674	$34,442	$163.85	$124.42 - $184.64
Q4 2019	168,162	$29,936	$152.39	$125.11 - $175.03
Q3 2019	559,631	$87,096	$142.31	$127.77 - $155.32
Q2 2019	614,692	$83,463	$129.05	$108.95 - $152.95
Q1 2019	840,654	$113,899	$124.16	$101.64 - $137.81
Q4 2018	1,432,704	$166,552	$112.91	$96.22 - $130.06
Q3 2018	1,388,348	$174,279	$131.20	$117.51 - $143.26
Q2 2018	1,664,628	$222,511	$119.62	$102.58 - $133.88
Q1 2018	1,733,046	$200,635	$111.03	$96.61 - $119.53
Q4 2017	2,094,684	$235,359	$108.54	$98.18 - $118.56
Q3 2017	2,257,074	$240,491	$94.77	$87.95 - $100.67
Q2 2017	3,158,057	$304,437	$88.76	$82.13 - $96.78
Q1 2017	3,298,697	$303,811	$82.35	$76.05 - $87.81
Q4 2016	3,415,994	$279,873	$74.44	$69.57 - $81.67
Q3 2016	3,654,192	$294,162	$68.33	$60.21 - $75.04
Q2 2016	3,740,313	$255,539	$60.38	$55.33 - $65.50
Q1 2016	3,877,992	$246,795	$54.76	$50.58 - $59.11
Q4 2015	4,139,216	$263,710	$56.88	$45.12 - $63.43
Q3 2015	4,464,863	$228,601	$45.23	$37.18 - $48.10
Q2 2015	4,669,781	$236,804	$48.11	$44.76 - $50.50
Q1 2015	4,514,277	$237,677	$45.64	$40.76 - $50.87
Q4 2014	3,881,591	$193,070	$40.54	$30.68 - $45.83
Q3 2014	4,069,166	$179,246	$39.57	$36.40 - $43.40
Q2 2014	4,245,226	$179,785	$34.76	$31.35 - $38.50
Q1 2014	4,011,231	$155,516	$31.60	$27.60 - $35.10
Q4 2013	4,140,291	$143,502	$28.65	$24.43 - $31.16
Q3 2013	4,147,770	$125,594	$25.18	$21.26 - $28.18
Q2 2013	3,698,590	$89,173	$21.28	$18.50 - $22.86