MONOLITHIC POWER SYSTEMS INC - Common Stock (MPWR)
CUSIP: 609839105
Q4 2025 13F Holders as of 31 Dec 2025
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 47,915,757
- Total 13F shares
- 47,646,240
- Share change
- +832,792
- Total reported value
- $43,178,409,436
- Put/Call ratio
- 169%
- Price per share
- $906.36
- Number of holders
- 1,043
- Value change
- +$747,105,645
- Number of buys
- 508
- Number of sells
- 442
Quarterly Holders Quick Answers
What is CUSIP 609839105?
CUSIP 609839105 identifies MPWR - MONOLITHIC POWER SYSTEMS INC - Common Stock in SEC institutional holdings data.
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Related Filing Research
- Latest 13F filings for newly reported positions.
- Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
- Latest 10-Q/10-K reports for financial context tied to this issuer.
- Recent insider transactions for executive and insider activity.
- SEC investors directory and top value investors for manager drilldown.
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Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
Recent filing periods for CUSIP 609839105:
Top shareholders of MPWR - MONOLITHIC POWER SYSTEMS INC - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
|
Company |
13%
|
6,074,033
|
$5,591,997,740 | — | 30 Sep 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
10%
from 13D/G
|
5,726,774
|
$5,272,297,648 | — | 30 Sep 2025 | |
| FMR LLC |
13D/G
13F
|
Company |
8.3%
|
3,977,008
|
$3,604,601,251 | $0 | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
4.5%
|
2,134,704
|
$1,968,577,775 | — | 30 Sep 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
3.3%
|
1,573,798
|
$1,448,902,000 | — | 30 Sep 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.8%
|
1,337,697
|
$1,226,828,661 | — | 30 Sep 2025 | |
| Invesco Ltd. |
13F
|
Company |
2.4%
|
1,139,133
|
$1,048,731,183 | — | 30 Sep 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
2.2%
|
1,052,053
|
$968,562,111 | — | 30 Sep 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1.8%
|
863,228
|
$794,723,446 | — | 30 Sep 2025 | |
| T. Rowe Price Investment Management, Inc. |
13F
|
Company |
1.6%
|
750,688
|
$691,114,000 | — | 30 Sep 2025 | |
| VAN ECK ASSOCIATES CORP |
13F
|
Company |
1.5%
|
732,448
|
$674,321,000 | — | 30 Sep 2025 | |
| BROWN ADVISORY INC |
13F
|
Company |
1.5%
|
730,119
|
$672,205,429 | — | 30 Sep 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1.5%
|
722,816
|
$665,453,225 | — | 30 Sep 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.2%
|
558,671
|
$514,336,893 | — | 30 Sep 2025 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
1.2%
|
556,587
|
$512,416,256 | — | 30 Sep 2025 | |
| UBS Group AG |
13F
|
Company |
1.1%
|
528,319
|
$486,391,604 | — | 30 Sep 2025 | |
| FIL Ltd |
13F
|
Company |
1%
|
497,333
|
$457,864,653 | — | 30 Sep 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1%
|
485,831
|
$447,275,451 | — | 30 Sep 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.95%
|
452,938
|
$416,992,839 | — | 30 Sep 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
0.93%
|
447,801
|
$412,263,380 | — | 30 Sep 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.91%
|
434,325
|
$399,856,964 | — | 30 Sep 2025 | |
| Rafferty Asset Management, LLC |
13F
|
Company |
0.79%
|
379,318
|
$349,215,324 | — | 30 Sep 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.76%
|
362,062
|
$333,328,760 | — | 30 Sep 2025 | |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.75%
|
359,312
|
$330,796,999 | — | 30 Sep 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.75%
|
358,429
|
$329,984,073 | — | 30 Sep 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.75%
|
357,910
|
$329,506,262 | — | 30 Sep 2025 | |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.74%
|
355,363
|
$327,161,564 | — | 30 Sep 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.66%
|
315,922
|
$290,850,430 | — | 30 Sep 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.63%
|
304,091
|
$279,958,557 | — | 30 Sep 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.59%
|
280,703
|
$258,426,410 | — | 30 Sep 2025 | |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. |
13F
|
Company |
0.57%
|
272,529
|
$250,901,099 | — | 30 Sep 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.56%
|
267,212
|
$246,004,791 | — | 30 Sep 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.54%
|
260,466
|
$239,795,418 | — | 30 Sep 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
0.45%
|
214,950
|
$197,897,724 | — | 30 Sep 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.43%
|
206,617
|
$190,220,000 | — | 30 Sep 2025 | |
| EARNEST PARTNERS LLC |
13F
|
Company |
0.43%
|
205,779
|
$189,448,378 | — | 30 Sep 2025 | |
| SEI INVESTMENTS CO |
13F
|
Company |
0.42%
|
199,686
|
$183,836,345 | — | 30 Sep 2025 | |
| Artisan Partners Limited Partnership |
13F
|
Company |
0.4%
|
192,749
|
$177,452,439 | — | 30 Sep 2025 | |
| MACQUARIE GROUP LTD |
13F
|
Company |
0.38%
|
180,795
|
$166,447,587 | — | 30 Sep 2025 | |
| Deutsche Girozentrale DekaBank |
13F
|
Individual |
0.4%
|
190,443
|
$165,896,000 | — | 30 Sep 2025 | |
| CITIGROUP INC |
13F
|
Company |
0.37%
|
178,183
|
$164,042,075 | — | 30 Sep 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.36%
|
173,754
|
$159,964,882 | — | 30 Sep 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.36%
|
170,490
|
$156,959,914 | — | 30 Sep 2025 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
0.36%
|
171,221
|
$156,816,197 | — | 30 Sep 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.35%
|
169,712
|
$156,245,622 | — | 30 Sep 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.35%
|
168,996
|
$155,584,477 | — | 30 Sep 2025 | |
| Neuberger Berman Group LLC |
13F
|
Company |
0.35%
|
167,806
|
$154,488,555 | — | 30 Sep 2025 | |
| FRONTIER CAPITAL MANAGEMENT CO LLC |
13F
|
Company |
0.34%
|
163,916
|
$150,907,939 | — | 30 Sep 2025 | |
| Ensign Peak Advisors, Inc |
13F
|
Company |
0.34%
|
163,239
|
$150,284,353 | — | 30 Sep 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.33%
|
160,204
|
$147,516,347 | — | 30 Sep 2025 |
Institutional Holders of MONOLITHIC POWER SYSTEMS INC - Common Stock (MPWR) as of Q4 2025
As of 31 Dec 2025,
MONOLITHIC POWER SYSTEMS INC - Common Stock (MPWR) was held by
1,043 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
47,646,240 shares.
The largest 10 holders included
VANGUARD GROUP INC, BlackRock, Inc., FMR LLC, STATE STREET CORP, PRICE T ROWE ASSOCIATES INC /MD/, Invesco Ltd., GEODE CAPITAL MANAGEMENT, LLC, FRANKLIN RESOURCES INC, NORGES BANK, and T. Rowe Price Investment Management, Inc..
This page lists
1,043
institutional shareholders reporting positions in this security
for the Q4 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
971
Q4 2025 holders
1,043
Holder diff
72
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 Value $ | Q4 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.