MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

BANK OF MONTREAL /CAN/'s Holding History (CIK: 0000927971)

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

Q4 2025

Shares 52,288 Value ($000) $47,392 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 53,991 Value ($000) $49,707 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 51,189 Value ($000) $37,439 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 47,326 Value ($000) $27,448 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 47,162 Value ($000) $27,906 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 45,627 Value ($000) $42,205 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 73,208 Value ($000) $60,348 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 51,901 Value ($000) $35,462 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 42,975 Value ($000) $27,259 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 28,308 Value ($000) $13,641 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 23,859 Value ($000) $13,033 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 19,962 Value ($000) $10,010 Avg Close $449.31 Range $331.60 - $518.64

Q4 2022

Shares 27,424 Value ($000) $9,701 Avg Close $350.38 Range $294.21 - $405.83

Q3 2022

Shares 21,632 Value ($000) $8,108 Avg Close $432.95 Range $338.72 - $526.93

Q2 2022

Shares 25,516 Value ($000) $10,701 Avg Close $410.37 Range $365.38 - $475.87

Q1 2022

Shares 26,101 Value ($000) $12,920 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 31,575 Value ($000) $16,186 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 36,627 Value ($000) $18,083 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 32,794 Value ($000) $12,398 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 25,502 Value ($000) $9,649 Avg Close $351.26 Range $290.78 - $392.28

Q4 2020

Shares 6,179 Value ($000) $2,424 Avg Close $308.64 Range $261.69 - $353.99

Q3 2020

Shares 3,226 Value ($000) $923 Avg Close $250.15 Range $223.49 - $273.49

Q2 2020

Shares 3,230 Value ($000) $805 Avg Close $194.18 Range $144.85 - $229.19

Q1 2020

Shares 1,035 Value ($000) $164 Avg Close $163.85 Range $124.42 - $184.64

Q4 2019

Shares 10,532 Value ($000) $1,875 Avg Close $152.39 Range $125.11 - $175.03

Q3 2019

Shares 7,406 Value ($000) $1,153 Avg Close $142.31 Range $127.77 - $155.32

Q2 2019

Shares 7,170 Value ($000) $973 Avg Close $129.05 Range $108.95 - $152.95

Q1 2019

Shares 10,070 Value ($000) $1,364 Avg Close $124.16 Range $101.64 - $137.81

Q4 2018

Shares 11,602 Value ($000) $1,349 Avg Close $112.91 Range $96.22 - $130.06

Q3 2018

Shares 18,251 Value ($000) $2,292 Avg Close $131.20 Range $117.51 - $143.26

Q2 2018

Shares 18,115 Value ($000) $2,421 Avg Close $119.62 Range $102.58 - $133.88

Q1 2018

Shares 13,912 Value ($000) $1,610 Avg Close $111.03 Range $96.61 - $119.53

Q4 2017

Shares 175,595 Value ($000) $19,729 Avg Close $108.54 Range $98.18 - $118.56

Q3 2017

Shares 336,685 Value ($000) $35,874 Avg Close $94.77 Range $87.95 - $100.67

Q2 2017

Shares 361,806 Value ($000) $34,878 Avg Close $88.76 Range $82.13 - $96.78

Q1 2017

Shares 373,545 Value ($000) $34,404 Avg Close $82.35 Range $76.05 - $87.81

Q4 2016

Shares 177,879 Value ($000) $14,592 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 7,944 Value ($000) $640 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 8,701 Value ($000) $594 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 10,919 Value ($000) $695 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 9,980 Value ($000) $636 Avg Close $56.88 Range $45.12 - $63.43

Q3 2015

Shares 1,462 Value ($000) $75 Avg Close $45.23 Range $37.18 - $48.10

Q2 2015

Shares 1,000 Value ($000) $51 Avg Close $48.11 Range $44.76 - $50.50

Q1 2015

Shares 1,000 Value ($000) $53 Avg Close $45.64 Range $40.76 - $50.87

Q4 2014

Shares 916 Value ($000) $46 Avg Close $40.54 Range $30.68 - $45.83

Q3 2014

Shares 5,266 Value ($000) $232 Avg Close $39.57 Range $36.40 - $43.40

Q2 2014

Shares 8,334 Value ($000) $353 Avg Close $34.76 Range $31.35 - $38.50

Q1 2014

Shares 8,474 Value ($000) $329 Avg Close $31.60 Range $27.60 - $35.10

Q4 2013

Shares 9,051 Value ($000) $314 Avg Close $28.65 Range $24.43 - $31.16

Q3 2013

Shares 1,221 Value ($000) $37 Avg Close $25.18 Range $21.26 - $28.18

Q2 2013

Shares 11,124 Value ($000) $268 Avg Close $21.28 Range $18.50 - $22.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	52,288	$47,392	$960.73	$831.77 - $1121.48
Q3 2025	53,991	$49,707	$808.07	$684.50 - $934.81
Q2 2025	51,189	$37,439	$633.58	$436.42 - $750.80
Q1 2025	47,326	$27,448	$624.99	$550.94 - $718.03
Q4 2024	47,162	$27,906	$716.72	$541.09 - $944.19
Q3 2024	45,627	$42,205	$853.35	$721.11 - $948.49
Q2 2024	73,208	$60,348	$712.18	$577.26 - $845.04
Q1 2024	51,901	$35,462	$657.62	$552.66 - $766.48
Q4 2023	42,975	$27,259	$513.84	$385.61 - $636.41
Q3 2023	28,308	$13,641	$501.94	$430.22 - $584.79
Q2 2023	23,859	$13,033	$465.29	$375.28 - $542.22
Q1 2023	19,962	$10,010	$449.31	$331.60 - $518.64
Q4 2022	27,424	$9,701	$350.38	$294.21 - $405.83
Q3 2022	21,632	$8,108	$432.95	$338.72 - $526.93
Q2 2022	25,516	$10,701	$410.37	$365.38 - $475.87
Q1 2022	26,101	$12,920	$422.77	$340.68 - $499.27
Q4 2021	31,575	$16,186	$500.08	$444.81 - $561.94
Q3 2021	36,627	$18,083	$440.15	$351.70 - $504.81
Q2 2021	32,794	$12,398	$340.03	$291.31 - $382.48
Q1 2021	25,502	$9,649	$351.26	$290.78 - $392.28
Q4 2020	6,179	$2,424	$308.64	$261.69 - $353.99
Q3 2020	3,226	$923	$250.15	$223.49 - $273.49
Q2 2020	3,230	$805	$194.18	$144.85 - $229.19
Q1 2020	1,035	$164	$163.85	$124.42 - $184.64
Q4 2019	10,532	$1,875	$152.39	$125.11 - $175.03
Q3 2019	7,406	$1,153	$142.31	$127.77 - $155.32
Q2 2019	7,170	$973	$129.05	$108.95 - $152.95
Q1 2019	10,070	$1,364	$124.16	$101.64 - $137.81
Q4 2018	11,602	$1,349	$112.91	$96.22 - $130.06
Q3 2018	18,251	$2,292	$131.20	$117.51 - $143.26
Q2 2018	18,115	$2,421	$119.62	$102.58 - $133.88
Q1 2018	13,912	$1,610	$111.03	$96.61 - $119.53
Q4 2017	175,595	$19,729	$108.54	$98.18 - $118.56
Q3 2017	336,685	$35,874	$94.77	$87.95 - $100.67
Q2 2017	361,806	$34,878	$88.76	$82.13 - $96.78
Q1 2017	373,545	$34,404	$82.35	$76.05 - $87.81
Q4 2016	177,879	$14,592	$74.44	$69.57 - $81.67
Q3 2016	7,944	$640	$68.33	$60.21 - $75.04
Q2 2016	8,701	$594	$60.38	$55.33 - $65.50
Q1 2016	10,919	$695	$54.76	$50.58 - $59.11
Q4 2015	9,980	$636	$56.88	$45.12 - $63.43
Q3 2015	1,462	$75	$45.23	$37.18 - $48.10
Q2 2015	1,000	$51	$48.11	$44.76 - $50.50
Q1 2015	1,000	$53	$45.64	$40.76 - $50.87
Q4 2014	916	$46	$40.54	$30.68 - $45.83
Q3 2014	5,266	$232	$39.57	$36.40 - $43.40
Q2 2014	8,334	$353	$34.76	$31.35 - $38.50
Q1 2014	8,474	$329	$31.60	$27.60 - $35.10
Q4 2013	9,051	$314	$28.65	$24.43 - $31.16
Q3 2013	1,221	$37	$25.18	$21.26 - $28.18
Q2 2013	11,124	$268	$21.28	$18.50 - $22.86