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
2026
Q1 		– Sell
-9,100
Closed -$8.25M – 1557
2025
Q4 		$8.25M Buy
+9,100
New +$8.76M 0.07% 347
2025
Q3 		– Sell
-49,300
Closed -$36.1M – 1709
2025
Q2 		$36.1M Buy
49,300
+37,000
+301% +$23.6M 0.07% 292
2025
Q1 		$7.13M Sell
12,300
-73,400
-86% -$46.3M 0.01% 792
2024
Q4 		$50.7M Buy
+85,700
New +$62.1M 0.09% 190
2024
Q2 		– Sell
-5,900
Closed -$4M – 1555
2024
Q1 		$4M Sell
5,900
-27,700
-82% -$18.5M 0.01% 866
2023
Q4 		$21.2M Buy
+33,600
New +$17.6M 0.04% 451
2022
Q4 		– Sell
-87,200
Closed -$31.7M – 1468
2022
Q3 		$31.7M Sell
87,200
-59,500
-41% -$26.5M 0.06% 262
2022
Q2 		$56.3M Buy
146,700
+132,600
+940% +$56M 0.09% 154
2022
Q1 		$6.85M Buy
+14,100
New +$6.14M 0.01% 815
2021
Q4 		– Sell
-30,500
Closed -$14.8M – 1752
2021
Q3 		$14.8M Sell
30,500
-25,000
-45% -$11.4M 0.03% 465
2021
Q2 		$20.7M Buy
55,500
+14,800
+36% +$5.21M 0.06% 330
2021
Q1 		$14.4M Buy
40,700
+26,300
+183% +$9.58M 0.05% 359
2020
Q4 		$5.27M Buy
+14,400
New +$4.61M 0.02% 609
2020
Q3 		– Sell
-47,600
Closed -$11.3M – 1474
2020
Q2 		$11.3M Buy
+47,600
New +$9.64M 0.05% 427
2019
Q1 		– Sell
-37,100
Closed -$4.31M – 1488
2018
Q4 		$4.31M Buy
+37,100
New +$4.44M 0.03% 531
2018
Q2 		– Sell
-2,300
Closed -$266K – 1283
2018
Q1 		$266K Buy
+2,300
New +$273K ﹤0.01% 887

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.