We are live on ! Find out more
MPWR icon

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
FC
1151
Farringdon Capital
United Kingdom
– -$618K -682 Closed
LCM
1152
LRT Capital Management
Texas
– -$601K -663 Closed
UWS
1153
Unique Wealth Strategies
Illinois
– -$570K -629 Closed
QIM
1154
Quantitative Investment Management
Virginia
– -$568K -627 Closed
LCM
1155
Laurion Capital Management
New York
– -$656K -600 Closed
NA
1156
Navellier & Associates
Nevada
– -$512K -565 Closed
AA
1157
ALPS Advisors
Colorado
– -$497K -548 Closed
AI
1158
AdvisorShares Investments
Maryland
– -$471K -520 Closed
EI
1159
EFG International
– -$457K -504 Closed
CCIA
1160
Campbell & Co Investment Adviser
Maryland
– -$456K -503 Closed
DDPIC
1161
Deroy & Devereaux Private Investment Counsel
Michigan
– -$453K -500 Closed
FAN
1162
Financial Advisors Network
California
– -$434K -479 Closed
FRM
1163
Fox Run Management
Connecticut
– -$415K -458 Closed
AWM
1164
Adams Wealth Management
Utah
– -$419K -456 Closed
CI
1165
CacheTech Inc
Utah
– -$419K -456 Closed
CP
1166
Covenant Partners
Tennessee
– -$411K -454 Closed
MG
1167
McHugh Group
Ohio
– -$385K -425 Closed
YC
1168
Yarbrough Capital
Tennessee
– -$379K -418 Closed
LCM
1169
Landscape Capital Management
New Jersey
– -$368K -406 Closed
JRPIM
1170
Journey Retirement Planning & Investment Management
Idaho
– -$367K -405 Closed
FFM
1171
Forum Financial Management
Illinois
– -$353K -390 Closed
ACA
1172
Aptus Capital Advisors
Alabama
– -$347K -383 Closed
SMA
1173
Sage Mountain Advisors
Georgia
– -$290K -320 Closed
WANY
1174
Wealthspire Advisors (New York)
New York
– -$273K -301 Closed
UW
1175
Unique Wealth
Florida
– -$255K -281 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.