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Monolithic Power Systems
MPWR

860 hedge funds and large institutions have $27.1B invested in Monolithic Power Systems in 2025 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 332 increasing their positions, 309 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed

10% more first-time investments, than exits

New positions opened: 121 | Existing positions closed: 110

2.11% more ownership

Funds ownership: 95.41% → 97.52% (+2.1%)

7% more repeat investments, than reductions

Existing positions increased: 332 | Existing positions reduced: 309

0% less funds holding

Funds holding: 862 → 860 (-2)

2% less capital invested

Capital invested by funds: $27.6B → $27.1B (-$493M)

9% less call options, than puts

Call options by funds: $253M | Put options by funds: $277M

57% less funds holding in top 10

Funds holding in top 10: 7 → 3 (-4)

Holders
860
Holders Change
-2
Holders Change %
-0.23%
% of All Funds
11.53%
Holding in Top 10
3
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-57.14%
% of All Funds
0.04%
New
121
Increased
332
Reduced
309
Closed
110
Calls
$253M
Puts
$277M
Net Calls
-$24.4M
Net Calls Change
+$261M

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$319M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$240M
3
VanEck Associates
VanEck Associates
New York
+$170M
4
Coatue Management
Coatue Management
New York
+$122M
5
WorldQuant Millennium Advisors
WorldQuant Millennium Advisors
New York
+$96.2M

Top Sellers

1
BlackRock
BlackRock
New York
-$321M
2
Norges Bank
Norges Bank
Norway
-$151M
3
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
-$89.1M
4
Bank of Nova Scotia
Bank of Nova Scotia
Ontario, Canada
-$85.4M
5
VNIM
Vaughan Nelson Investment Management
Texas
-$82.3M
Name Holding Trade Value Shares
Change 		Change in
Stake
MIF
151
Mediolanum International Funds
Ireland
$14.3M -$2.79M -4,423 -15%
AS
152
Aware Super
Australia
$14M -$1.35M -2,144 -8%
New York State Common Retirement Fund
153
New York State Common Retirement Fund
New York
$13.9M -$315K -500 -2%
Swedbank
154
Swedbank
Sweden
$13.8M +$5.64M +8,944 +60%
Qube Research & Technologies (QRT)
155
Qube Research & Technologies (QRT)
United Kingdom
$13.6M -$38.9M -61,752 -72%
Mirae Asset Global ETFs Holdings
156
Mirae Asset Global ETFs Holdings
Hong Kong
$13.5M +$3.92M +6,217 +36%
Janney Montgomery Scott
157
Janney Montgomery Scott
Pennsylvania
$13.4M -$413K -655 -3%
Ohio Public Employees Retirement System (OPERS)
158
Ohio Public Employees Retirement System (OPERS)
Ohio
$13.1M +$1.81M +2,880 +15%
GT
159
Glenmede Trust
Pennsylvania
$12.8M -$4.23M -6,711 -23%
CCM
160
Copeland Capital Management
Pennsylvania
$12.8M +$1.42M +2,260 +11%
DnB Asset Management
161
DnB Asset Management
Norway
$12.7M -$334K -530 -2%
Schroder Investment Management Group
162
Schroder Investment Management Group
United Kingdom
$12.6M +$690K +1,095 +5%
WTC
163
WhitTier Trust Company
Nevada
$12.6M +$541K +859 +4%
PFPT
164
Pinnacle Financial Partners (Tennessee)
Tennessee
$12.5M +$1.57M +2,485 +13%
AIM
165
Arcadia Investment Management
Michigan
$12.2M -$655K -1,040 -5%
Asset Management One
166
Asset Management One
Japan
$12M +$152K +242 +1%
LOAME
167
Lombard Odier Asset Management (Europe)
United Kingdom
$11.9M +$12.9M +20,549 New
FAF
168
Första AP-fonden
Sweden
$11.8M +$6.24M +9,900 +95%
SBH
169
Segall Bryant & Hamill
Illinois
$11.7M -$3.56M -5,643 -22%
Toronto Dominion Bank
170
Toronto Dominion Bank
Ontario, Canada
$11.7M +$2.34M +3,712 +22%
CLGM
171
Capitolis Liquid Global Markets
New York
$11.7M +$12.7M +20,162 New
Robeco Institutional Asset Management
172
Robeco Institutional Asset Management
Netherlands
$11.6M -$8.2M -13,018 -39%
AssetMark Inc
173
AssetMark Inc
California
$11.4M -$786K -1,248 -6%
DB
174
Danske Bank
Denmark
$11.3M -$3.01M -4,774 -20%
FAM
175
Fred Alger Management
New York
$10.9M +$892K +1,415 +8%
5 6
7
8 9

MPWR Hedge Fund Activity: Q1 2025 in Review

860 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Monolithic Power Systems (MPWR) for Q1 2025, worth a combined $27.1B — down 1.8% from $27.6B a quarter earlier.

Buyers outnumbered sellers: 121 funds opened new MPWR positions and 110 closed out — a net gain of 11 holders — while 332 added to existing stakes and 309 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $319M. The largest seller was BlackRock, cutting an estimated $321M.

  • 860 institutional investors held Monolithic Power Systems (MPWR) as of Q1 2025, down from 862 in Q4 2024.
  • Funds reported $27.1B of Monolithic Power Systems stock for Q1 2025, down 1.8% quarter-over-quarter.
  • 121 funds opened new Monolithic Power Systems positions in Q1 2025 and 110 closed out, a net change of +11 holders.
  • The largest Monolithic Power Systems buyer in Q1 2025 was T. Rowe Price Associates, an estimated $319M added.
  • The largest Monolithic Power Systems seller in Q1 2025 was BlackRock, an estimated $321M sold.

Based on aggregated 13F filings for Q1 2025.