MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

WHITTIER TRUST CO OF NEVADA INC's Holding History (CIK: 0001263548)

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

Q4 2025

Shares 22,864 Value ($000) $22,987 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 22,604 Value ($000) $20,769 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 22,478 Value ($000) $16,440 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 21,721 Value ($000) $12,597 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 20,862 Value ($000) $12,344 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 19,990 Value ($000) $18,481 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 19,292 Value ($000) $15,852 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 18,566 Value ($000) $12,577 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 17,610 Value ($000) $11,108 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 18,718 Value ($000) $8,648 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 18,454 Value ($000) $9,969 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 22,748 Value ($000) $11,386 Avg Close $449.31 Range $331.60 - $518.64

Q4 2022

Shares 18,507 Value ($000) $6,544 Avg Close $350.38 Range $294.21 - $405.83

Q3 2022

Shares 26,275 Value ($000) $9,548 Avg Close $432.95 Range $338.72 - $526.93

Q2 2022

Shares 24,325 Value ($000) $9,342 Avg Close $410.37 Range $365.38 - $475.87

Q1 2022

Shares 22,389 Value ($000) $10,874 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 18,819 Value ($000) $9,283 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 20,067 Value ($000) $9,726 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 20,298 Value ($000) $7,580 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 19,672 Value ($000) $6,948 Avg Close $351.26 Range $290.78 - $392.28

Q4 2020

Shares 17,324 Value ($000) $6,344 Avg Close $308.64 Range $261.69 - $353.99

Q3 2020

Shares 22,231 Value ($000) $6,216 Avg Close $250.15 Range $223.49 - $273.49

Q2 2020

Shares 21,011 Value ($000) $4,979 Avg Close $194.18 Range $144.85 - $229.19

Q1 2020

Shares 16,531 Value ($000) $2,768 Avg Close $163.85 Range $124.42 - $184.64

Q4 2019

Shares 13,698 Value ($000) $2,438 Avg Close $152.39 Range $125.11 - $175.03

Q3 2019

Shares 10,869 Value ($000) $1,692 Avg Close $142.31 Range $127.77 - $155.32

Q2 2019

Shares 9,214 Value ($000) $1,251 Avg Close $129.05 Range $108.95 - $152.95

Q1 2019

Shares 8,194 Value ($000) $1,110 Avg Close $124.16 Range $101.64 - $137.81

Q4 2018

Shares 5,918 Value ($000) $688 Avg Close $112.91 Range $96.22 - $130.06

Q3 2018

Shares 5,525 Value ($000) $694 Avg Close $131.20 Range $117.51 - $143.26

Q2 2018

Shares 4,714 Value ($000) $630 Avg Close $119.62 Range $102.58 - $133.88

Q1 2018

Shares 3,627 Value ($000) $420 Avg Close $111.03 Range $96.61 - $119.53

Q4 2017

Shares 2,314 Value ($000) $260 Avg Close $108.54 Range $98.18 - $118.56

Q3 2017

Shares 1,627 Value ($000) $173 Avg Close $94.77 Range $87.95 - $100.67

Q2 2017

Shares 1,552 Value ($000) $150 Avg Close $88.76 Range $82.13 - $96.78

Q1 2017

Shares 720 Value ($000) $66 Avg Close $82.35 Range $76.05 - $87.81

Q4 2016

Shares 720 Value ($000) $59 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 720 Value ($000) $58 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 644 Value ($000) $44 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 644 Value ($000) $41 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 644 Value ($000) $41 Avg Close $56.88 Range $45.12 - $63.43

Q3 2015

Shares 779 Value ($000) $40 Avg Close $45.23 Range $37.18 - $48.10

Q2 2015

Shares 779 Value ($000) $39 Avg Close $48.11 Range $44.76 - $50.50

Q1 2015

Shares 779 Value ($000) $41 Avg Close $45.64 Range $40.76 - $50.87

Q4 2014

Shares 779 Value ($000) $39 Avg Close $40.54 Range $30.68 - $45.83

Q3 2014

Shares 779 Value ($000) $34 Avg Close $39.57 Range $36.40 - $43.40

Q2 2014

Shares 779 Value ($000) $33 Avg Close $34.76 Range $31.35 - $38.50

Q1 2014

Shares 779 Value ($000) $30 Avg Close $31.60 Range $27.60 - $35.10

Q4 2013

Shares 779 Value ($000) $27 Avg Close $28.65 Range $24.43 - $31.16

Q3 2013

Shares 779 Value ($000) $24 Avg Close $25.18 Range $21.26 - $28.18

Q2 2013

Shares 779 Value ($000) $19 Avg Close $21.28 Range $18.50 - $22.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	22,864	$22,987	$960.73	$831.77 - $1121.48
Q3 2025	22,604	$20,769	$808.07	$684.50 - $934.81
Q2 2025	22,478	$16,440	$633.58	$436.42 - $750.80
Q1 2025	21,721	$12,597	$624.99	$550.94 - $718.03
Q4 2024	20,862	$12,344	$716.72	$541.09 - $944.19
Q3 2024	19,990	$18,481	$853.35	$721.11 - $948.49
Q2 2024	19,292	$15,852	$712.18	$577.26 - $845.04
Q1 2024	18,566	$12,577	$657.62	$552.66 - $766.48
Q4 2023	17,610	$11,108	$513.84	$385.61 - $636.41
Q3 2023	18,718	$8,648	$501.94	$430.22 - $584.79
Q2 2023	18,454	$9,969	$465.29	$375.28 - $542.22
Q1 2023	22,748	$11,386	$449.31	$331.60 - $518.64
Q4 2022	18,507	$6,544	$350.38	$294.21 - $405.83
Q3 2022	26,275	$9,548	$432.95	$338.72 - $526.93
Q2 2022	24,325	$9,342	$410.37	$365.38 - $475.87
Q1 2022	22,389	$10,874	$422.77	$340.68 - $499.27
Q4 2021	18,819	$9,283	$500.08	$444.81 - $561.94
Q3 2021	20,067	$9,726	$440.15	$351.70 - $504.81
Q2 2021	20,298	$7,580	$340.03	$291.31 - $382.48
Q1 2021	19,672	$6,948	$351.26	$290.78 - $392.28
Q4 2020	17,324	$6,344	$308.64	$261.69 - $353.99
Q3 2020	22,231	$6,216	$250.15	$223.49 - $273.49
Q2 2020	21,011	$4,979	$194.18	$144.85 - $229.19
Q1 2020	16,531	$2,768	$163.85	$124.42 - $184.64
Q4 2019	13,698	$2,438	$152.39	$125.11 - $175.03
Q3 2019	10,869	$1,692	$142.31	$127.77 - $155.32
Q2 2019	9,214	$1,251	$129.05	$108.95 - $152.95
Q1 2019	8,194	$1,110	$124.16	$101.64 - $137.81
Q4 2018	5,918	$688	$112.91	$96.22 - $130.06
Q3 2018	5,525	$694	$131.20	$117.51 - $143.26
Q2 2018	4,714	$630	$119.62	$102.58 - $133.88
Q1 2018	3,627	$420	$111.03	$96.61 - $119.53
Q4 2017	2,314	$260	$108.54	$98.18 - $118.56
Q3 2017	1,627	$173	$94.77	$87.95 - $100.67
Q2 2017	1,552	$150	$88.76	$82.13 - $96.78
Q1 2017	720	$66	$82.35	$76.05 - $87.81
Q4 2016	720	$59	$74.44	$69.57 - $81.67
Q3 2016	720	$58	$68.33	$60.21 - $75.04
Q2 2016	644	$44	$60.38	$55.33 - $65.50
Q1 2016	644	$41	$54.76	$50.58 - $59.11
Q4 2015	644	$41	$56.88	$45.12 - $63.43
Q3 2015	779	$40	$45.23	$37.18 - $48.10
Q2 2015	779	$39	$48.11	$44.76 - $50.50
Q1 2015	779	$41	$45.64	$40.76 - $50.87
Q4 2014	779	$39	$40.54	$30.68 - $45.83
Q3 2014	779	$34	$39.57	$36.40 - $43.40
Q2 2014	779	$33	$34.76	$31.35 - $38.50
Q1 2014	779	$30	$31.60	$27.60 - $35.10
Q4 2013	779	$27	$28.65	$24.43 - $31.16
Q3 2013	779	$24	$25.18	$21.26 - $28.18
Q2 2013	779	$19	$21.28	$18.50 - $22.86