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Monolithic Power Systems
MPWR

Overview Fund Activity

848 hedge funds and large institutions have $26.7B invested in Monolithic Power Systems in 2025 Q1 according to their latest regulatory filings, with 122 funds opening new positions, 329 increasing their positions, 302 reducing their positions, and 108 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
848
Holders Change
-3
Holders Change %
-0.35%
% of All Funds
11.52%
Holding in Top 10
3
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-57.14%
% of All Funds
0.04%
New
122
Increased
329
Reduced
302
Closed
108
Calls
$253M
Puts
$277M
Net Calls
-$24.4M
Net Calls Change
+$261M

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$294M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$221M
3
VanEck Associates
VanEck Associates
New York
+$157M
4
Coatue Management
Coatue Management
New York
+$112M
5
WorldQuant Millennium Advisors
WorldQuant Millennium Advisors
New York
+$88.6M

Top Sellers

1
BlackRock
BlackRock
New York
-$295M
2
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
-$82M
3
Bank of Nova Scotia
Bank of Nova Scotia
Ontario, Canada
-$78.6M
4
VNIM
Vaughan Nelson Investment Management
Texas
-$75.8M
5
Citadel Advisors
Citadel Advisors
Florida
-$75.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
Mackenzie Financial
251
Mackenzie Financial
Ontario, Canada
$4.69M +$1.25M +2,150 +36%
OC
252
Oppenheimer & Co
New York
$4.6M +$2.14M +3,698 +87%
URS
253
Utah Retirement Systems
Utah
$4.5M – – –
MML Investors Services
254
MML Investors Services
Massachusetts
$4.48M +$102K +175 +2%
Comerica Bank
255
Comerica Bank
Texas
$4.46M -$1.64M -2,819 -27%
Acadian Asset Management
256
Acadian Asset Management
Massachusetts
$4.42M +$81.1K +140 +2%
FCI
257
Financial Counselors Inc
Kansas
$4.29M +$219K +377 +5%
Public Sector Pension Investment Board (PSP Investments)
258
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$4.22M -$13.8M -23,740 -77%
D.E. Shaw & Co
259
D.E. Shaw & Co
New York
$4.22M -$2.92M -5,029 -41%
CIBC Asset Management
260
CIBC Asset Management
Ontario, Canada
$4.18M -$111K -191 -3%
FFA
261
First Foundation Advisors
California
$4.14M +$4.14M +7,137 New
ACM
262
American Capital Management
New York
$4.12M -$10.4K -18 -0.3%
AAM
263
Advisors Asset Management
Colorado
$4.1M -$1.1M -1,893 -21%
NYLIM
264
New York Life Investment Management
New York
$4.09M -$93.4K -161 -2%
QCM
265
QRG Capital Management
Illinois
$4.09M -$172K -296 -4%
SAM
266
Shell Asset Management
Netherlands
$4.08M +$1.05M +1,814 +35%
VRS
267
Virginia Retirement Systems
Virginia
$4.06M +$4.06M +7,000 New
PFSRSONJ
268
Police & Firemen's Retirement System of New Jersey
New Jersey
$3.95M – – –
Wealthfront Advisers
269
Wealthfront Advisers
California
$3.9M +$469K +808 +14%
VPIM
270
Vanguard Personalized Indexing Management
California
$3.84M +$724K +1,248 +23%
PL
271
Perpetual Ltd
Australia
$3.79M +$2.09M +3,596 +122%
KM
272
KP Management
Minnesota
$3.77M – – –
TPSF
273
Texas Permanent School Fund
Texas
$3.7M +$3.7M +6,246 New
CCM
274
Carderock Capital Management
Maryland
$3.69M +$875K +1,509 +31%
Commonwealth Equity Services
275
Commonwealth Equity Services
Massachusetts
$3.64M -$3.88M -6,690 -52%
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