MONOLITHIC POWER SYSTEMS INC - Common Stock (MPWR)

Historical Holders from Q1 2014 to Q3 2025

Symbol
MPWR on Nasdaq
CUSIP
609839105
Type / Class
Equity / Common Stock
Shares outstanding
47.9M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
46.6M
Holdings value
$42.8B
% of all portfolios
0.019%
Grand Portfolio weight change
-0.001%
Number of holders
953
Number of buys
495
Number of sells
-385
Average Value change %
+0%
Average buys %
+0.004%
Average sells %
-0.003%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of MONOLITHIC POWER SYSTEMS INC - Common Stock (MPWR)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VANGUARD GROUP INC 12.4% $4.34B 5.94M The Vanguard Group Jun 30, 2025
BlackRock, Inc. 9.8% $2.71B 4.67M BlackRock, Inc. Mar 31, 2025

Institutional Holders of MONOLITHIC POWER SYSTEMS INC - Common Stock (MPWR)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 46.6M $42.8B -$568M $920.64 953
2025 Q2 47.3M $34.6B +$1.17B $731.38 895
2025 Q1 46M $26.7B -$287M $579.98 843
2024 Q4 46.5M $27.5B +$52.8M $591.70 836
2024 Q3 45.5M $42B -$1.11B $924.50 863
2024 Q2 46.9M $38.5B +$1.43B $821.68 824
2024 Q1 45.3M $30.6B -$160M $677.42 790
2023 Q4 45.4M $28.6B -$59.4M $630.78 716
2023 Q3 45.4M $21B -$752M $462.00 640
2023 Q2 46.6M $25.1B +$67.8M $540.23 637
2023 Q1 46.3M $23.2B -$184M $500.54 650
2022 Q4 46.7M $16.5B +$342M $353.61 590
2022 Q3 45.7M $16.6B +$740M $363.40 616
2022 Q2 43.7M $16.8B -$81.2M $384.04 608
2022 Q1 43.8M $21.2B +$130M $485.68 596
2021 Q4 43.5M $21.5B -$230M $493.33 606
2021 Q3 43.4M $21.1B +$249M $484.68 566
2021 Q2 42.8M $16B +$417M $373.45 521
2021 Q1 42.7M $15.1B +$68.2M $353.21 521
2020 Q4 42.5M $15.6B -$7.39M $366.23 503
2020 Q3 42.4M $11.8B -$118M $279.61 431
2020 Q2 42.8M $10.2B +$96.9M $237.00 396
2020 Q1 42.5M $7.11B +$35.1M $167.46 346
2019 Q4 41.8M $7.45B -$73.2M $178.02 348
2019 Q3 42.3M $6.59B +$53M $155.63 346
2019 Q2 42M $5.71B +$206M $135.78 341
2019 Q1 41.7M $5.66B -$86.7M $135.49 343
2018 Q4 42.4M $4.93B +$218M $116.25 335
2018 Q3 40.5M $5.08B +$61.9M $125.53 350
2018 Q2 39.9M $5.33B +$129M $133.67 341
2018 Q1 39M $4.51B +$115M $115.77 325
2017 Q4 38.4M $4.32B -$104M $112.36 318
2017 Q3 39.4M $4.19B +$50.8M $106.55 293
2017 Q2 38.9M $3.75B +$64.9M $96.40 283
2017 Q1 38.3M $3.53B +$260M $92.10 287
2016 Q4 39.3M $3.22B -$27.4M $81.93 264
2016 Q3 39.6M $3.18B +$169M $80.50 240
2016 Q2 39.5M $2.7B +$36.9M $68.32 209
2016 Q1 39.2M $2.49B +$100M $63.64 195
2015 Q4 37.6M $2.4B -$49.7M $63.71 191
2015 Q3 37.8M $1.93B +$70.2M $51.20 176
2015 Q2 37.2M $1.89B +$30.6M $50.71 177
2015 Q1 36.5M $1.92B -$13.5M $52.65 176
2014 Q4 36.3M $1.81B -$14.4M $49.74 170
2014 Q3 37.2M $1.64B -$754K $44.05 174
2014 Q2 37.2M $1.58B -$20.1M $42.35 158
2014 Q1 37.7M $1.46B +$17.9M $38.77 148