MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 483,700 Value ($000) $438,406 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 485,831 Value ($000) $447,275 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 482,057 Value ($000) $352,567 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 498,516 Value ($000) $289,129 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 509,293 Value ($000) $301,349 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 414,879 Value ($000) $383,556 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 432,197 Value ($000) $355,128 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 432,208 Value ($000) $292,786 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 446,107 Value ($000) $281,395 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 459,777 Value ($000) $212,417 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 431,519 Value ($000) $233,120 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 448,889 Value ($000) $224,687 Avg Close $449.31 Range $331.60 - $518.64

Q4 2022

Shares 445,018 Value ($000) $157,363 Avg Close $350.38 Range $294.21 - $405.83

Q3 2022

Shares 452,212 Value ($000) $164,334 Avg Close $432.95 Range $338.72 - $526.93

Q2 2022

Shares 452,902 Value ($000) $173,932 Avg Close $410.37 Range $365.38 - $475.87

Q1 2022

Shares 444,146 Value ($000) $215,713 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 442,386 Value ($000) $218,242 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 456,797 Value ($000) $221,402 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 440,792 Value ($000) $164,614 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 443,250 Value ($000) $156,561 Avg Close $351.26 Range $290.78 - $392.28

Q4 2020

Shares 405,685 Value ($000) $148,574 Avg Close $308.64 Range $261.69 - $353.99

Q3 2020

Shares 355,141 Value ($000) $99,302 Avg Close $250.15 Range $223.49 - $273.49

Q2 2020

Shares 364,481 Value ($000) $86,382 Avg Close $194.18 Range $144.85 - $229.19

Q1 2020

Shares 349,144 Value ($000) $58,468 Avg Close $163.85 Range $124.42 - $184.64

Q4 2019

Shares 336,536 Value ($000) $59,911 Avg Close $152.39 Range $125.11 - $175.03

Q3 2019

Shares 328,881 Value ($000) $51,183 Avg Close $142.31 Range $127.77 - $155.32

Q2 2019

Shares 332,551 Value ($000) $45,153 Avg Close $129.05 Range $108.95 - $152.95

Q1 2019

Shares 331,489 Value ($000) $44,913 Avg Close $124.16 Range $101.64 - $137.81

Q4 2018

Shares 319,582 Value ($000) $37,151 Avg Close $112.91 Range $96.22 - $130.06

Q3 2018

Shares 320,704 Value ($000) $40,259 Avg Close $131.20 Range $117.51 - $143.26

Q2 2018

Shares 356,941 Value ($000) $47,712 Avg Close $119.62 Range $102.58 - $133.88

Q1 2018

Shares 627,352 Value ($000) $72,629 Avg Close $111.03 Range $96.61 - $119.53

Q4 2017

Shares 630,019 Value ($000) $70,789 Avg Close $108.54 Range $98.18 - $118.56

Q3 2017

Shares 655,108 Value ($000) $69,802 Avg Close $94.77 Range $87.95 - $100.67

Q2 2017

Shares 665,430 Value ($000) $64,147 Avg Close $88.76 Range $82.13 - $96.78

Q1 2017

Shares 637,063 Value ($000) $58,673 Avg Close $82.35 Range $76.05 - $87.81

Q4 2016

Shares 631,485 Value ($000) $51,736 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 767,886 Value ($000) $61,815 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 642,298 Value ($000) $43,882 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 601,568 Value ($000) $36,633 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 589,883 Value ($000) $37,581 Avg Close $56.88 Range $45.12 - $63.43

Q3 2015

Shares 577,596 Value ($000) $29,573 Avg Close $45.23 Range $37.18 - $48.10

Q2 2015

Shares 456,818 Value ($000) $23,165 Avg Close $48.11 Range $44.76 - $50.50

Q1 2015

Shares 566,086 Value ($000) $29,804 Avg Close $45.64 Range $40.76 - $50.87

Q4 2014

Shares 564,303 Value ($000) $28,068 Avg Close $40.54 Range $30.68 - $45.83

Q3 2014

Shares 589,400 Value ($000) $25,963 Avg Close $39.57 Range $36.40 - $43.40

Q2 2014

Shares 478,038 Value ($000) $20,245 Avg Close $34.76 Range $31.35 - $38.50

Q1 2014

Shares 625,503 Value ($000) $24,251 Avg Close $31.60 Range $27.60 - $35.10

Q4 2013

Shares 542,354 Value ($000) $18,797 Avg Close $28.65 Range $24.43 - $31.16

Q3 2013

Shares 588,957 Value ($000) $17,834 Avg Close $25.18 Range $21.26 - $28.18

Q2 2013

Shares 538,387 Value ($000) $12,980 Avg Close $21.28 Range $18.50 - $22.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	483,700	$438,406	$960.73	$831.77 - $1121.48
Q3 2025	485,831	$447,275	$808.07	$684.50 - $934.81
Q2 2025	482,057	$352,567	$633.58	$436.42 - $750.80
Q1 2025	498,516	$289,129	$624.99	$550.94 - $718.03
Q4 2024	509,293	$301,349	$716.72	$541.09 - $944.19
Q3 2024	414,879	$383,556	$853.35	$721.11 - $948.49
Q2 2024	432,197	$355,128	$712.18	$577.26 - $845.04
Q1 2024	432,208	$292,786	$657.62	$552.66 - $766.48
Q4 2023	446,107	$281,395	$513.84	$385.61 - $636.41
Q3 2023	459,777	$212,417	$501.94	$430.22 - $584.79
Q2 2023	431,519	$233,120	$465.29	$375.28 - $542.22
Q1 2023	448,889	$224,687	$449.31	$331.60 - $518.64
Q4 2022	445,018	$157,363	$350.38	$294.21 - $405.83
Q3 2022	452,212	$164,334	$432.95	$338.72 - $526.93
Q2 2022	452,902	$173,932	$410.37	$365.38 - $475.87
Q1 2022	444,146	$215,713	$422.77	$340.68 - $499.27
Q4 2021	442,386	$218,242	$500.08	$444.81 - $561.94
Q3 2021	456,797	$221,402	$440.15	$351.70 - $504.81
Q2 2021	440,792	$164,614	$340.03	$291.31 - $382.48
Q1 2021	443,250	$156,561	$351.26	$290.78 - $392.28
Q4 2020	405,685	$148,574	$308.64	$261.69 - $353.99
Q3 2020	355,141	$99,302	$250.15	$223.49 - $273.49
Q2 2020	364,481	$86,382	$194.18	$144.85 - $229.19
Q1 2020	349,144	$58,468	$163.85	$124.42 - $184.64
Q4 2019	336,536	$59,911	$152.39	$125.11 - $175.03
Q3 2019	328,881	$51,183	$142.31	$127.77 - $155.32
Q2 2019	332,551	$45,153	$129.05	$108.95 - $152.95
Q1 2019	331,489	$44,913	$124.16	$101.64 - $137.81
Q4 2018	319,582	$37,151	$112.91	$96.22 - $130.06
Q3 2018	320,704	$40,259	$131.20	$117.51 - $143.26
Q2 2018	356,941	$47,712	$119.62	$102.58 - $133.88
Q1 2018	627,352	$72,629	$111.03	$96.61 - $119.53
Q4 2017	630,019	$70,789	$108.54	$98.18 - $118.56
Q3 2017	655,108	$69,802	$94.77	$87.95 - $100.67
Q2 2017	665,430	$64,147	$88.76	$82.13 - $96.78
Q1 2017	637,063	$58,673	$82.35	$76.05 - $87.81
Q4 2016	631,485	$51,736	$74.44	$69.57 - $81.67
Q3 2016	767,886	$61,815	$68.33	$60.21 - $75.04
Q2 2016	642,298	$43,882	$60.38	$55.33 - $65.50
Q1 2016	601,568	$36,633	$54.76	$50.58 - $59.11
Q4 2015	589,883	$37,581	$56.88	$45.12 - $63.43
Q3 2015	577,596	$29,573	$45.23	$37.18 - $48.10
Q2 2015	456,818	$23,165	$48.11	$44.76 - $50.50
Q1 2015	566,086	$29,804	$45.64	$40.76 - $50.87
Q4 2014	564,303	$28,068	$40.54	$30.68 - $45.83
Q3 2014	589,400	$25,963	$39.57	$36.40 - $43.40
Q2 2014	478,038	$20,245	$34.76	$31.35 - $38.50
Q1 2014	625,503	$24,251	$31.60	$27.60 - $35.10
Q4 2013	542,354	$18,797	$28.65	$24.43 - $31.16
Q3 2013	588,957	$17,834	$25.18	$21.26 - $28.18
Q2 2013	538,387	$12,980	$21.28	$18.50 - $22.86