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Arlington Trust’s Monolithic Power Systems MPWR Stock Holding History

Arlington Trust’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
Q4 		– Sell
-27
Closed -$24.9K – 566
2025
Q3 		$24.9K Hold
27
– – ﹤0.01% 431
2025
Q2 		$19.7K Sell
27
-26
-49% -$16.6K ﹤0.01% 448
2025
Q1 		$30.7K Hold
53
– – 0.01% 412
2024
Q4 		$31.4K Hold
53
– – 0.01% 387
2024
Q3 		$49K Hold
53
– – 0.01% 335
2024
Q2 		$43.5K Sell
53
-11
-17% -$7.94K 0.01% 338
2024
Q1 		$43.4K Hold
64
– – 0.01% 291
2023
Q4 		$40.4K Buy
64
+23
+56% +$12K 0.01% 303
2023
Q3 		$18.9K Buy
+41
New +$21K 0.01% 186

Other funds holding MPWR

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Arlington Trust's MPWR Position: Q4 2025 in Review

Arlington Trust sold out of Monolithic Power Systems (MPWR) in Q4 2025, closing a stake of 27 shares — an estimated $24.9K sold.

Arlington Trust first reported a position in MPWR in Q3 2023 and held it in 9 quarters. The position peaked at $49K in Q3 2024. 1,061 funds tracked by Wall St. Rank hold MPWR as of Q4 2025.

  • Arlington Trust reported no remaining Monolithic Power Systems position as of Q4 2025 after selling out during the quarter.
  • Arlington Trust sold 27 Monolithic Power Systems shares in Q4 2025, an estimated $24.9K.
  • Arlington Trust first reported a position in Monolithic Power Systems in Q3 2023 and held it in 9 quarters.
  • Arlington Trust's Monolithic Power Systems position peaked at $49K in Q3 2024.
  • 1,061 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q4 2025.

Based on Arlington Trust's 13F filing for Q4 2025, filed 30 Jan 2026.