Millennium Management
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Millennium Management’s Monolithic Power Systems MPWR Stock Holding History

Millennium Management’s Portfolio MPWR Stock Details MPWR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$11.9M Buy
10,900
+800
+8% +$874K 0.01% 2004
2025
Q4 		$9.15M Buy
10,100
+600
+6% +$577K ﹤0.01% 2359
2025
Q3 		$8.75M Sell
9,500
-700
-7% -$568K ﹤0.01% 2526
2025
Q2 		$7.46M Sell
10,200
-3,700
-27% -$2.36M ﹤0.01% 2571
2025
Q1 		$8.06M Buy
13,900
+4,500
+48% +$2.84M ﹤0.01% 2403
2024
Q4 		$5.56M Sell
9,400
-13,900
-60% -$10.1M ﹤0.01% 2725
2024
Q3 		$21.5M Buy
23,300
+18,400
+376% +$15.9M 0.01% 1495
2024
Q2 		$4.03M Sell
4,900
-2,800
-36% -$2.02M ﹤0.01% 2911
2024
Q1 		$5.22M Sell
7,700
-23,600
-75% -$15.8M ﹤0.01% 2824
2023
Q4 		$19.7M Buy
31,300
+26,700
+580% +$13.9M 0.01% 1556
2023
Q3 		$2.13M Sell
4,600
-1,300
-22% -$665K ﹤0.01% 3499
2023
Q2 		$3.19M Buy
+5,900
New +$2.8M ﹤0.01% 3082
2021
Q4 		– Sell
-4,500
Closed -$2.18M – 7160
2021
Q3 		$2.18M Sell
4,500
-200
-4% -$91K ﹤0.01% 3809
2021
Q2 		$1.75M Buy
4,700
+1,500
+47% +$528K ﹤0.01% 4112
2021
Q1 		$1.13M Buy
+3,200
New +$1.17M ﹤0.01% 4101

Other funds holding MPWR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Millennium Management's MPWR Position: Q1 2026 in Review

Millennium Management sold out of Monolithic Power Systems (MPWR) in Q1 2026, closing a stake of 24,679 shares — an estimated $27M sold.

Millennium Management first reported a position in MPWR in Q2 2013 and held it in 39 quarters. The position peaked at $159M in Q4 2022. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Millennium Management reported no remaining Monolithic Power Systems position as of Q1 2026 after selling out during the quarter.
  • Millennium Management sold 24,679 Monolithic Power Systems shares in Q1 2026, an estimated $27M.
  • Millennium Management first reported a position in Monolithic Power Systems in Q2 2013 and held it in 39 quarters.
  • Millennium Management's Monolithic Power Systems position peaked at $159M in Q4 2022.
  • 1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.