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Ossiam’s Monolithic Power Systems MPWR Stock Holding History

Ossiam’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
-2,250
Closed -$2.07M – 578
2025
Q3 		$2.07M Buy
2,250
+244
+12% +$198K 0.03% 337
2025
Q2 		$1.47M Buy
2,006
+865
+76% +$551K 0.02% 321
2025
Q1 		$662K Sell
1,141
-23
-2% -$14.5K 0.01% 389
2024
Q4 		$689K Buy
1,164
+149
+15% +$108K 0.01% 421
2024
Q3 		$938K Sell
1,015
-417
-29% -$360K 0.02% 355
2024
Q2 		$1.18M Buy
1,432
+858
+149% +$619K 0.02% 330
2024
Q1 		$389K Sell
574
-767
-57% -$512K 0.01% 521
2023
Q4 		$846K Buy
1,341
+159
+13% +$83.1K 0.01% 389
2023
Q3 		$546K Buy
1,182
+495
+72% +$253K 0.01% 451
2023
Q2 		$371K Buy
687
+371
+117% +$176K 0.01% 486
2023
Q1 		$158K Sell
316
-7,464
-96% -$3.43M ﹤0.01% 513
2022
Q4 		$2.75M Buy
7,780
+7,426
+2,098% +$2.67M 0.07% 166
2022
Q3 		$129K Buy
+354
New +$157K ﹤0.01% 514

Other funds holding MPWR

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
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
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
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $935B AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Ossiam's MPWR Position: Q4 2025 in Review

Ossiam sold out of Monolithic Power Systems (MPWR) in Q4 2025, closing a stake of 2,250 shares — an estimated $2.07M sold.

Ossiam first reported a position in MPWR in Q3 2022 and held it in 13 quarters. The position peaked at $2.75M in Q4 2022. 1,059 funds tracked by Wall St. Rank hold MPWR as of Q4 2025.

  • Ossiam reported no remaining Monolithic Power Systems position as of Q4 2025 after selling out during the quarter.
  • Ossiam sold 2,250 Monolithic Power Systems shares in Q4 2025, an estimated $2.07M.
  • Ossiam first reported a position in Monolithic Power Systems in Q3 2022 and held it in 13 quarters.
  • Ossiam's Monolithic Power Systems position peaked at $2.75M in Q4 2022.
  • 1,059 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q4 2025.

Based on Ossiam's 13F filing for Q4 2025, filed 13 Feb 2026.