Twin Tree Management
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Twin Tree Management’s Monolithic Power Systems MPWR Stock Holding History

Twin Tree 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
2025
Q3 		– Sell
-24,000
Closed -$17.6M – 1707
2025
Q2 		$17.6M Buy
+24,000
New +$15.3M 0.03% 533
2025
Q1 		– Sell
-5,000
Closed -$2.96M – 1793
2024
Q4 		$2.96M Buy
+5,000
New +$3.62M 0.01% 1071
2024
Q1 		– Sell
-47,500
Closed -$30M – 1486
2023
Q4 		$30M Buy
+47,500
New +$24.8M 0.06% 337
2023
Q2 		– Sell
-4,600
Closed -$2.3M – 1428
2023
Q1 		$2.3M Buy
+4,600
New +$2.11M ﹤0.01% 880
2022
Q3 		– Sell
-28,800
Closed -$11.1M – 1545
2022
Q2 		$11.1M Buy
+28,800
New +$12.2M 0.02% 615
2021
Q4 		– Sell
-20,600
Closed -$9.98M – 1751
2021
Q3 		$9.98M Hold
20,600
– – 0.02% 577
2021
Q2 		$7.69M Buy
20,600
+14,800
+255% +$5.21M 0.02% 576
2021
Q1 		$2.05M Buy
+5,800
New +$2.11M 0.01% 846
2019
Q1 		– Sell
-49,300
Closed -$5.73M – 1486
2018
Q4 		$5.73M Buy
+49,300
New +$5.9M 0.04% 458

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

Twin Tree Management's MPWR Position: Q3 2025 in Review

Twin Tree Management sold out of Monolithic Power Systems (MPWR) in Q3 2025, closing a stake of 2,291 shares — an estimated $1.68M sold.

Twin Tree Management first reported a position in MPWR in Q1 2018 and held it in 15 quarters. The position peaked at $14.8M in Q2 2022. 979 funds tracked by Wall St. Rank hold MPWR as of Q3 2025.

  • Twin Tree Management reported no remaining Monolithic Power Systems position as of Q3 2025 after selling out during the quarter.
  • Twin Tree Management sold 2,291 Monolithic Power Systems shares in Q3 2025, an estimated $1.68M.
  • Twin Tree Management first reported a position in Monolithic Power Systems in Q1 2018 and held it in 15 quarters.
  • Twin Tree Management's Monolithic Power Systems position peaked at $14.8M in Q2 2022.
  • 979 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q3 2025.

Based on Twin Tree Management's 13F filing for Q3 2025, filed 13 Nov 2025.