MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q4 2025

Shares 54,156 Value ($000) $49 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 67,650 Value ($000) $60 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 66,909 Value ($000) $49 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 62,556 Value ($000) $36 Avg Close $624.99 Range $550.94 - $718.03

Q4 2024

Shares 68,991 Value ($000) $41 Avg Close $716.72 Range $541.09 - $944.19

Q3 2024

Shares 38,113 Value ($000) $35 Avg Close $853.35 Range $721.11 - $948.49

Q2 2024

Shares 36,007 Value ($000) $30 Avg Close $712.18 Range $577.26 - $845.04

Q1 2024

Shares 36,132 Value ($000) $24 Avg Close $657.62 Range $552.66 - $766.48

Q4 2023

Shares 38,960 Value ($000) $24 Avg Close $513.84 Range $385.61 - $636.41

Q3 2023

Shares 38,986 Value ($000) $18 Avg Close $501.94 Range $430.22 - $584.79

Q2 2023

Shares 41,836 Value ($000) $23 Avg Close $465.29 Range $375.28 - $542.22

Q1 2023

Shares 41,982 Value ($000) $21 Avg Close $449.31 Range $331.60 - $518.64

Q4 2022

Shares 45,035 Value ($000) $16 Avg Close $350.38 Range $294.21 - $405.83

Q3 2022

Shares 45,178 Value ($000) $16,401 Avg Close $432.95 Range $338.72 - $526.93

Q2 2022

Shares 44,925 Value ($000) $17,266 Avg Close $410.37 Range $365.38 - $475.87

Q1 2022

Shares 16,248 Value ($000) $8,268 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 16,397 Value ($000) $8,074 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 16,733 Value ($000) $8,166 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 19,690 Value ($000) $7,350 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 33,760 Value ($000) $11,853 Avg Close $351.26 Range $290.78 - $392.28

Q4 2020

Shares 34,519 Value ($000) $12,625 Avg Close $308.64 Range $261.69 - $353.99

Q3 2020

Shares 20,232 Value ($000) $5,649 Avg Close $250.15 Range $223.49 - $273.49

Q2 2020

Shares 21,151 Value ($000) $5,010 Avg Close $194.18 Range $144.85 - $229.19

Q1 2020

Shares 21,303 Value ($000) $3,570 Avg Close $163.85 Range $124.42 - $184.64

Q4 2019

Shares 19,910 Value ($000) $3,515 Avg Close $152.39 Range $125.11 - $175.03

Q2 2019

Shares 23,058 Value ($000) $3,131 Avg Close $129.05 Range $108.95 - $152.95

Q1 2019

Shares 23,647 Value ($000) $3,201 Avg Close $124.16 Range $101.64 - $137.81

Q4 2018

Shares 23,931 Value ($000) $2,581 Avg Close $112.91 Range $96.22 - $130.06

Q3 2018

Shares 21,634 Value ($000) $2,716 Avg Close $131.20 Range $117.51 - $143.26

Q2 2018

Shares 22,279 Value ($000) $2,977 Avg Close $119.62 Range $102.58 - $133.88

Q1 2018

Shares 22,277 Value ($000) $2,580 Avg Close $111.03 Range $96.61 - $119.53

Q4 2017

Shares 21,692 Value ($000) $2,437 Avg Close $108.54 Range $98.18 - $118.56

Q3 2017

Shares 22,492 Value ($000) $2,392 Avg Close $94.77 Range $87.95 - $100.67

Q2 2017

Shares 22,804 Value ($000) $2,196 Avg Close $88.76 Range $82.13 - $96.78

Q1 2017

Shares 22,066 Value ($000) $2,031 Avg Close $82.35 Range $76.05 - $87.81

Q4 2016

Shares 21,189 Value ($000) $1,738 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 23,065 Value ($000) $1,855 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 48,884 Value ($000) $3,339 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 5,005 Value ($000) $318 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 5,005 Value ($000) $319 Avg Close $56.88 Range $45.12 - $63.43

Q3 2015

Shares 2,959 Value ($000) $152 Avg Close $45.23 Range $37.18 - $48.10

Q2 2015

Shares 2,959 Value ($000) $150 Avg Close $48.11 Range $44.76 - $50.50

Q1 2015

Shares 2,959 Value ($000) $155 Avg Close $45.64 Range $40.76 - $50.87

Q4 2014

Shares 2,959 Value ($000) $147 Avg Close $40.54 Range $30.68 - $45.83

Q3 2014

Shares 2,959 Value ($000) $131 Avg Close $39.57 Range $36.40 - $43.40

Q2 2014

Shares 2,959 Value ($000) $125 Avg Close $34.76 Range $31.35 - $38.50

Q1 2014

Shares 1,092 Value ($000) $42 Avg Close $31.60 Range $27.60 - $35.10

Q4 2013

Shares 1,092 Value ($000) $38 Avg Close $28.65 Range $24.43 - $31.16

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	54,156	$49	$960.73	$831.77 - $1121.48
Q3 2025	67,650	$60	$808.07	$684.50 - $934.81
Q2 2025	66,909	$49	$633.58	$436.42 - $750.80
Q1 2025	62,556	$36	$624.99	$550.94 - $718.03
Q4 2024	68,991	$41	$716.72	$541.09 - $944.19
Q3 2024	38,113	$35	$853.35	$721.11 - $948.49
Q2 2024	36,007	$30	$712.18	$577.26 - $845.04
Q1 2024	36,132	$24	$657.62	$552.66 - $766.48
Q4 2023	38,960	$24	$513.84	$385.61 - $636.41
Q3 2023	38,986	$18	$501.94	$430.22 - $584.79
Q2 2023	41,836	$23	$465.29	$375.28 - $542.22
Q1 2023	41,982	$21	$449.31	$331.60 - $518.64
Q4 2022	45,035	$16	$350.38	$294.21 - $405.83
Q3 2022	45,178	$16,401	$432.95	$338.72 - $526.93
Q2 2022	44,925	$17,266	$410.37	$365.38 - $475.87
Q1 2022	16,248	$8,268	$422.77	$340.68 - $499.27
Q4 2021	16,397	$8,074	$500.08	$444.81 - $561.94
Q3 2021	16,733	$8,166	$440.15	$351.70 - $504.81
Q2 2021	19,690	$7,350	$340.03	$291.31 - $382.48
Q1 2021	33,760	$11,853	$351.26	$290.78 - $392.28
Q4 2020	34,519	$12,625	$308.64	$261.69 - $353.99
Q3 2020	20,232	$5,649	$250.15	$223.49 - $273.49
Q2 2020	21,151	$5,010	$194.18	$144.85 - $229.19
Q1 2020	21,303	$3,570	$163.85	$124.42 - $184.64
Q4 2019	19,910	$3,515	$152.39	$125.11 - $175.03
Q2 2019	23,058	$3,131	$129.05	$108.95 - $152.95
Q1 2019	23,647	$3,201	$124.16	$101.64 - $137.81
Q4 2018	23,931	$2,581	$112.91	$96.22 - $130.06
Q3 2018	21,634	$2,716	$131.20	$117.51 - $143.26
Q2 2018	22,279	$2,977	$119.62	$102.58 - $133.88
Q1 2018	22,277	$2,580	$111.03	$96.61 - $119.53
Q4 2017	21,692	$2,437	$108.54	$98.18 - $118.56
Q3 2017	22,492	$2,392	$94.77	$87.95 - $100.67
Q2 2017	22,804	$2,196	$88.76	$82.13 - $96.78
Q1 2017	22,066	$2,031	$82.35	$76.05 - $87.81
Q4 2016	21,189	$1,738	$74.44	$69.57 - $81.67
Q3 2016	23,065	$1,855	$68.33	$60.21 - $75.04
Q2 2016	48,884	$3,339	$60.38	$55.33 - $65.50
Q1 2016	5,005	$318	$54.76	$50.58 - $59.11
Q4 2015	5,005	$319	$56.88	$45.12 - $63.43
Q3 2015	2,959	$152	$45.23	$37.18 - $48.10
Q2 2015	2,959	$150	$48.11	$44.76 - $50.50
Q1 2015	2,959	$155	$45.64	$40.76 - $50.87
Q4 2014	2,959	$147	$40.54	$30.68 - $45.83
Q3 2014	2,959	$131	$39.57	$36.40 - $43.40
Q2 2014	2,959	$125	$34.76	$31.35 - $38.50
Q1 2014	1,092	$42	$31.60	$27.60 - $35.10
Q4 2013	1,092	$38	$28.65	$24.43 - $31.16