MONOLITHIC POWER SYSTEMS INC - Common Stock (MPWR)

Historical Holders from Q1 2014 to Q3 2025

Symbol
MPWR on Nasdaq
Type / Class
Equity / Common Stock
Shares outstanding
47,902,790
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
46,566,347
Holdings value
$42,851,658,394
% of all portfolios
0.019%
Number of holders
960
Number of buys
501
Number of sells
-388
Average buys %
+0%
Average sells %
-0%
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% $4,344,359,487 5,939,946 The Vanguard Group 30 Jun 2025
BlackRock, Inc. 9.8% $2,714,873,839 4,674,772 BlackRock, Inc. 31 Mar 2025

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

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 46,566,347 $42,851,658,394 -$554,091,422 $920.64 960
2025 Q2 47,319,591 $34,604,458,962 +$1,173,714,798 $731.38 896
2025 Q1 46,061,486 $26,700,920,271 -$286,601,097 $579.98 848
2024 Q4 46,496,915 $27,530,887,700 -$375,710,095 $591.7 848
2024 Q3 46,241,327 $42,731,203,371 -$427,288,195 $924.5 866
2024 Q2 46,878,387 $38,519,520,474 +$907,307,790 $821.68 829
2024 Q1 45,912,491 $31,091,246,206 +$223,402,574 $677.42 796
2023 Q4 45,402,028 $28,629,807,533 -$418,776,941 $630.78 725
2023 Q3 45,982,739 $21,242,239,379 -$481,094,575 $462 649
2023 Q2 46,640,420 $25,183,815,752 +$71,548,693 $540.23 644
2023 Q1 46,369,939 $23,198,306,260 -$181,669,790 $500.54 658
2022 Q4 47,017,508 $16,624,837,267 +$359,311,854 $353.61 597
2022 Q3 45,983,338 $16,720,600,237 +$788,203,527 $363.4 618
2022 Q2 43,709,252 $16,792,098,001 -$82,246,755 $384.04 609
2022 Q1 43,853,705 $21,267,523,237 +$130,242,076 $485.68 598
2021 Q4 43,564,292 $21,489,393,439 -$228,912,278 $493.33 609
2021 Q3 43,483,682 $21,075,138,239 +$250,126,712 $484.68 565
2021 Q2 42,846,046 $15,982,432,031 +$416,974,703 $373.45 518
2021 Q1 42,738,703 $15,095,910,243 +$67,555,402 $353.21 523
2020 Q4 42,520,318 $15,566,068,580 -$7,548,319 $366.23 505
2020 Q3 42,417,552 $11,858,147,686 -$118,457,404 $279.61 431
2020 Q2 42,823,926 $10,170,291,358 +$97,254,699 $237 397
2020 Q1 42,490,931 $7,116,341,479 +$34,814,384 $167.46 348
2019 Q4 41,838,285 $7,450,515,487 -$73,246,939 $178.02 349
2019 Q3 42,351,592 $6,591,532,706 +$52,861,063 $155.63 343
2019 Q2 42,040,561 $5,705,771,067 +$206,501,579 $135.78 339
2019 Q1 41,736,982 $5,655,841,352 -$86,747,874 $135.49 341
2018 Q4 42,451,324 $4,934,913,814 +$217,806,322 $116.25 334
2018 Q3 40,463,736 $5,079,641,448 +$61,916,551 $125.53 350
2018 Q2 39,899,582 $5,333,990,585 +$129,032,744 $133.67 341
2018 Q1 38,996,384 $4,514,731,100 +$114,994,661 $115.77 325
2017 Q4 38,439,899 $4,319,265,532 -$103,793,423 $112.36 318
2017 Q3 39,361,866 $4,194,367,387 +$50,635,188 $106.55 291
2017 Q2 38,916,034 $3,752,216,354 +$64,874,945 $96.4 283
2017 Q1 38,307,935 $3,528,140,646 +$259,835,652 $92.1 286
2016 Q4 39,266,525 $3,218,544,717 -$27,440,306 $81.93 263
2016 Q3 39,555,200 $3,183,026,431 +$168,636,593 $80.5 240
2016 Q2 39,471,515 $2,696,704,897 +$36,924,568 $68.32 209
2016 Q1 39,192,404 $2,490,943,966 +$99,987,403 $63.64 197
2015 Q4 37,627,753 $2,397,322,686 -$49,743,881 $63.71 191
2015 Q3 38,408,694 $1,966,058,416 +$72,980,434 $51.2 178
2015 Q2 37,204,401 $1,886,652,193 +$30,569,520 $50.71 178
2015 Q1 36,538,309 $1,923,031,117 -$13,631,853 $52.65 177
2014 Q4 36,864,580 $1,833,337,638 -$12,959,562 $49.74 169
2014 Q3 37,165,175 $1,637,185,627 -$771,817 $44.05 173
2014 Q2 37,224,227 $1,576,398,316 -$20,145,088 $42.35 158
2014 Q1 37,700,139 $1,461,102,651 +$22,829,601 $38.77 148