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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 %
Walleye Capital
726
Walleye Capital
New York
$33.6K -$9.46M -16,317 -100%
SC
727
SouthState Corp
Florida
$33.1K +$33.1K +57 New
IUHSA
728
Itau Unibanco Holding S.A.
Brazil
$31K -$3.51K -6 -10%
AT
729
Arlington Trust
Alabama
$30.7K – – –
MSWA
730
Marshall & Sterling Wealth Advisors
New York
$30.2K +$30.2K +52 New
SO
731
Sierra Ocean
California
$29.6K +$6.97K +12 +31%
FDW
732
Fourth Dimension Wealth
Ohio
$28.4K – – –
WA
733
WPG Advisers
Maryland
$26.7K -$1.74K -3 -6%
TCM
734
Tradewinds Capital Management
Washington
$26.1K +$580 +1 +2%
ZBNA
735
Zions Bancorporation, National Association
Utah
$24.4K +$24.4K +42 New
HT
736
Headlands Technologies
Illinois
$22K -$448K -772 -95%
TH
737
TCTC Holdings
Texas
$22K +$11.6K +20 +111%
MCM
738
MV Capital Management
Maryland
$21.5K +$1.74K +3 +9%
TWD
739
True Wealth Design
Ohio
$20.2K +$19.6K +34 +3,400%
GKIM
740
GW&K Investment Management
Massachusetts
$19K +$9.79K +17 +106%
BIA
741
Bell Investment Advisors
California
$18.6K +$580 +1 +3%
RA
742
Rise Advisors
New York
$18.1K -$584 -1 -3%
IA
743
IFP Advisors
Florida
$18K -$846K -1,456 -98%
SC
744
Solstein Capital
California
$18K – – –
WWM
745
Wolff Wiese Magana
California
$17.4K -$2.9K -5 -14%
FMII
746
Farmers & Merchants Investments Inc
Nebraska
$16.2K – – –
BBHC
747
Brown Brothers Harriman & Co
New York
$15.7K +$1.16K +2 +8%
Bank Julius Baer & Co
748
Bank Julius Baer & Co
Switzerland
$15.7K -$87.4K -134 -85%
CWM
749
Centricity Wealth Management
Ohio
$15.1K – – –
AIM
750
Anchor Investment Management
South Carolina
$14.5K – – –
28 29
30
31 32