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Monolithic Power Systems
MPWR

1,114 hedge funds and large institutions have $51.6B invested in Monolithic Power Systems in 2026 Q1 according to their latest regulatory filings, with 177 funds opening new positions, 383 increasing their positions, 404 reducing their positions, and 102 closing their positions.

New
Increased
Maintained
Reduced
Closed

74% more first-time investments, than exits

New positions opened: 177 | Existing positions closed: 102

44% more funds holding in top 10

Funds holding in top 10: 9 → 13 (+4)

17% more capital invested

Capital invested by funds: $44.2B → $51.6B (+$7.36B)

5% more funds holding

Funds holding: 1,059 → 1,114 (+55)

5% less repeat investments, than reductions

Existing positions increased: 383 | Existing positions reduced: 404

9.8% less ownership

Funds ownership: 106.01% → 96.22% (-9.8%)

29% less call options, than puts

Call options by funds: $299M | Put options by funds: $418M

Holders
1,114
Holders Change
+55
Holders Change %
+5.19%
% of All Funds
13.71%
Holding in Top 10
13
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+44.44%
% of All Funds
0.16%
New
177
Increased
383
Reduced
404
Closed
102
Calls
$299M
Puts
$418M
Net Calls
-$120M
Net Calls Change
+$145M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$463M
2
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$324M
3
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
+$122M
4
BlackRock
BlackRock
New York
+$120M
5
UBS Group
UBS Group
Switzerland
+$111M

Top Sellers

1
Corient Private Wealth
Corient Private Wealth
Florida
-$2.28B
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$468M
3
Bank of America
Bank of America
North Carolina
-$183M
4
Fidelity International
Fidelity International
Bermuda
-$176M
5
Wellington Management Group
Wellington Management Group
Massachusetts
-$147M
Name Holding Trade Value Shares
Change 		Change in
Stake
A
1176
AlphaQuest
New York
– -$250K -276 Closed
WWM
1177
Walser Wealth Management
Florida
– -$247K -273 Closed
HKIMG
1178
Hutchens & Kramer Investment Management Group
Indiana
– -$247K -272 Closed
HCM
1179
Howard Capital Management
Georgia
– -$245K -270 Closed
OAM
1180
Occidental Asset Management
California
– -$241K -266 Closed
OFS
1181
OneAscent Financial Services
Alabama
– -$239K -263 Closed
FA
1182
Fedenia Advisers
Wisconsin
– -$237K -262 Closed
PCS
1183
Personal CFO Solutions
New Jersey
– -$233K -257 Closed
MM
1184
MQS Management
New York
– -$232K -256 Closed
HCM
1185
Hollencrest Capital Management
California
– -$222K -245 Closed
GKWIM
1186
Gerber Kawasaki Wealth & Investment Management
California
– -$205K -226 Closed
SSG
1187
Summit Securities Group
New York
– -$131K -144 Closed
EW
1188
Elyxium Wealth
California
– -$104K -115 Closed
SIM
1189
Sentry Investment Management
Wisconsin
– -$103K -114 Closed
AAM
1190
Alphadyne Asset Management
New York
– -$73.2K -67 Closed
GWM
1191
Greenline Wealth Management
Florida
– -$37.7K -42 Closed
UOTTAIMCU
1192
University of Texas/Texas AM Investment Management Co (UTIMCO)
Texas
– -$28.1K -31 Closed
MA
1193
Modus Advisors
Minnesota
– -$19.9K -22 Closed
BCM
1194
Berbice Capital Management
New York
– -$18.1K -20 Closed
CA
1195
Cresta Advisors
Texas
– -$18.1K -20 Closed
CIAS
1196
CBIZ Investment Advisory Services
Ohio
– -$16.3K -18 Closed
TH
1197
TCTC Holdings
Texas
– -$16.3K -18 Closed
BDPWM
1198
Barnes Dennig Private Wealth Management
Ohio
– -$15.4K -17 Closed
AG
1199
AmeriFlex Group
Nevada
– -$9.06K -10 Closed
FHA
1200
Flagship Harbor Advisors
Massachusetts
– -$9.06K -10 Closed
45 46 47
48
49

MPWR Hedge Fund Activity: Q1 2026 in Review

1,114 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Monolithic Power Systems (MPWR) for Q1 2026, worth a combined $51.6B — up 17% from $44.2B a quarter earlier.

Buyers outnumbered sellers: 177 funds opened new MPWR positions and 102 closed out — a net gain of 75 holders — while 383 added to existing stakes and 404 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $463M. The largest seller was Corient Private Wealth, cutting an estimated $2.28B.

  • 1,114 institutional investors held Monolithic Power Systems (MPWR) as of Q1 2026, up from 1,059 in Q4 2025.
  • Funds reported $51.6B of Monolithic Power Systems stock for Q1 2026, up 17% quarter-over-quarter.
  • 177 funds opened new Monolithic Power Systems positions in Q1 2026 and 102 closed out, a net change of +75 holders.
  • The largest Monolithic Power Systems buyer in Q1 2026 was Fidelity Investments, an estimated $463M added.
  • The largest Monolithic Power Systems seller in Q1 2026 was Corient Private Wealth, an estimated $2.28B sold.

Based on aggregated 13F filings for Q1 2026.