MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

MORGAN STANLEY's Holding History (CIK: 0000895421)

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

Q4 2025

Shares 649,070 Value ($000) $588,294 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 558,671 Value ($000) $514,337 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 565,019 Value ($000) $413,245 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 540,631 Value ($000) $313,556 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 459,302 Value ($000) $271,770 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 444,892 Value ($000) $411,304 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 418,996 Value ($000) $344,283 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 493,163 Value ($000) $334,080 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 412,309 Value ($000) $260,078 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 398,969 Value ($000) $184,325 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 351,298 Value ($000) $189,783 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 324,309 Value ($000) $162,330 Avg Close $449.31 Range $331.60 - $518.64

Q4 2022

Shares 382,410 Value ($000) $135,224 Avg Close $350.38 Range $294.21 - $405.83

Q3 2022

Shares 368,127 Value ($000) $133,777 Avg Close $432.95 Range $338.72 - $526.93

Q2 2022

Shares 326,541 Value ($000) $125,405 Avg Close $410.37 Range $365.38 - $475.87

Q1 2022

Shares 104,714 Value ($000) $50,857 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 90,668 Value ($000) $44,729 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 124,282 Value ($000) $60,238 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 73,941 Value ($000) $27,612 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 75,969 Value ($000) $26,833 Avg Close $351.26 Range $290.78 - $392.28

Q4 2020

Shares 51,012 Value ($000) $18,683 Avg Close $308.64 Range $261.69 - $353.99

Q3 2020

Shares 29,321 Value ($000) $8,199 Avg Close $250.15 Range $223.49 - $273.49

Q2 2020

Shares 27,917 Value ($000) $6,618 Avg Close $194.18 Range $144.85 - $229.19

Q1 2020

Shares 45,481 Value ($000) $7,617 Avg Close $163.85 Range $124.42 - $184.64

Q4 2019

Shares 59,456 Value ($000) $10,585 Avg Close $152.39 Range $125.11 - $175.03

Q3 2019

Shares 31,371 Value ($000) $4,883 Avg Close $142.31 Range $127.77 - $155.32

Q2 2019

Shares 30,438 Value ($000) $4,133 Avg Close $129.05 Range $108.95 - $152.95

Q1 2019

Shares 65,210 Value ($000) $8,835 Avg Close $124.16 Range $101.64 - $137.81

Q4 2018

Shares 33,357 Value ($000) $3,878 Avg Close $112.91 Range $96.22 - $130.06

Q3 2018

Shares 103,612 Value ($000) $13,007 Avg Close $131.20 Range $117.51 - $143.26

Q2 2018

Shares 132,912 Value ($000) $17,767 Avg Close $119.62 Range $102.58 - $133.88

Q1 2018

Shares 233,396 Value ($000) $27,020 Avg Close $111.03 Range $96.61 - $119.53

Q4 2017

Shares 223,377 Value ($000) $25,099 Avg Close $108.54 Range $98.18 - $118.56

Q3 2017

Shares 207,383 Value ($000) $22,096 Avg Close $94.77 Range $87.95 - $100.67

Q2 2017

Shares 156,022 Value ($000) $15,042 Avg Close $88.76 Range $82.13 - $96.78

Q1 2017

Shares 174,229 Value ($000) $16,047 Avg Close $82.35 Range $76.05 - $87.81

Q4 2016

Shares 229,597 Value ($000) $18,810 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 132,322 Value ($000) $10,651 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 67,423 Value ($000) $4,606 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 19,136 Value ($000) $1,219 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 15,506 Value ($000) $988 Avg Close $56.88 Range $45.12 - $63.43

Q3 2015

Shares 18,645 Value ($000) $954 Avg Close $45.23 Range $37.18 - $48.10

Q2 2015

Shares 46,423 Value ($000) $2,354 Avg Close $48.11 Range $44.76 - $50.50

Q1 2015

Shares 38,537 Value ($000) $2,029 Avg Close $45.64 Range $40.76 - $50.87

Q4 2014

Shares 48,390 Value ($000) $2,407 Avg Close $40.54 Range $30.68 - $45.83

Q3 2014

Shares 93,411 Value ($000) $4,115 Avg Close $39.57 Range $36.40 - $43.40

Q2 2014

Shares 113,747 Value ($000) $4,818 Avg Close $34.76 Range $31.35 - $38.50

Q1 2014

Shares 67,284 Value ($000) $2,609 Avg Close $31.60 Range $27.60 - $35.10

Q4 2013

Shares 4,631 Value ($000) $160 Avg Close $28.65 Range $24.43 - $31.16

Q3 2013

Shares 17,601 Value ($000) $533 Avg Close $25.18 Range $21.26 - $28.18

Q2 2013

Shares 9,125 Value ($000) $220 Avg Close $21.28 Range $18.50 - $22.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	649,070	$588,294	$960.73	$831.77 - $1121.48
Q3 2025	558,671	$514,337	$808.07	$684.50 - $934.81
Q2 2025	565,019	$413,245	$633.58	$436.42 - $750.80
Q1 2025	540,631	$313,556	$624.99	$550.94 - $718.03
Q4 2024	459,302	$271,770	$716.72	$541.09 - $944.19
Q3 2024	444,892	$411,304	$853.35	$721.11 - $948.49
Q2 2024	418,996	$344,283	$712.18	$577.26 - $845.04
Q1 2024	493,163	$334,080	$657.62	$552.66 - $766.48
Q4 2023	412,309	$260,078	$513.84	$385.61 - $636.41
Q3 2023	398,969	$184,325	$501.94	$430.22 - $584.79
Q2 2023	351,298	$189,783	$465.29	$375.28 - $542.22
Q1 2023	324,309	$162,330	$449.31	$331.60 - $518.64
Q4 2022	382,410	$135,224	$350.38	$294.21 - $405.83
Q3 2022	368,127	$133,777	$432.95	$338.72 - $526.93
Q2 2022	326,541	$125,405	$410.37	$365.38 - $475.87
Q1 2022	104,714	$50,857	$422.77	$340.68 - $499.27
Q4 2021	90,668	$44,729	$500.08	$444.81 - $561.94
Q3 2021	124,282	$60,238	$440.15	$351.70 - $504.81
Q2 2021	73,941	$27,612	$340.03	$291.31 - $382.48
Q1 2021	75,969	$26,833	$351.26	$290.78 - $392.28
Q4 2020	51,012	$18,683	$308.64	$261.69 - $353.99
Q3 2020	29,321	$8,199	$250.15	$223.49 - $273.49
Q2 2020	27,917	$6,618	$194.18	$144.85 - $229.19
Q1 2020	45,481	$7,617	$163.85	$124.42 - $184.64
Q4 2019	59,456	$10,585	$152.39	$125.11 - $175.03
Q3 2019	31,371	$4,883	$142.31	$127.77 - $155.32
Q2 2019	30,438	$4,133	$129.05	$108.95 - $152.95
Q1 2019	65,210	$8,835	$124.16	$101.64 - $137.81
Q4 2018	33,357	$3,878	$112.91	$96.22 - $130.06
Q3 2018	103,612	$13,007	$131.20	$117.51 - $143.26
Q2 2018	132,912	$17,767	$119.62	$102.58 - $133.88
Q1 2018	233,396	$27,020	$111.03	$96.61 - $119.53
Q4 2017	223,377	$25,099	$108.54	$98.18 - $118.56
Q3 2017	207,383	$22,096	$94.77	$87.95 - $100.67
Q2 2017	156,022	$15,042	$88.76	$82.13 - $96.78
Q1 2017	174,229	$16,047	$82.35	$76.05 - $87.81
Q4 2016	229,597	$18,810	$74.44	$69.57 - $81.67
Q3 2016	132,322	$10,651	$68.33	$60.21 - $75.04
Q2 2016	67,423	$4,606	$60.38	$55.33 - $65.50
Q1 2016	19,136	$1,219	$54.76	$50.58 - $59.11
Q4 2015	15,506	$988	$56.88	$45.12 - $63.43
Q3 2015	18,645	$954	$45.23	$37.18 - $48.10
Q2 2015	46,423	$2,354	$48.11	$44.76 - $50.50
Q1 2015	38,537	$2,029	$45.64	$40.76 - $50.87
Q4 2014	48,390	$2,407	$40.54	$30.68 - $45.83
Q3 2014	93,411	$4,115	$39.57	$36.40 - $43.40
Q2 2014	113,747	$4,818	$34.76	$31.35 - $38.50
Q1 2014	67,284	$2,609	$31.60	$27.60 - $35.10
Q4 2013	4,631	$160	$28.65	$24.43 - $31.16
Q3 2013	17,601	$533	$25.18	$21.26 - $28.18
Q2 2013	9,125	$220	$21.28	$18.50 - $22.86