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Rational Advisors’s Monolithic Power Systems MPWR Stock Holding History

Rational Advisors’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
-3,900
Closed -$3.59M – 199
2025
Q3 		$3.59M Buy
+3,900
New +$3.16M 0.36% 53

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 $3.37T AUM 44.26% 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

Rational Advisors's MPWR Position: Q4 2025 in Review

Rational Advisors sold out of Monolithic Power Systems (MPWR) in Q4 2025, closing a stake of 3,900 shares — an estimated $3.59M sold.

Rational Advisors first reported a position in MPWR in Q3 2025 and held it in 1 quarter. The position peaked at $3.59M in Q3 2025. 1,061 funds tracked by Wall St. Rank hold MPWR as of Q4 2025.

  • Rational Advisors reported no remaining Monolithic Power Systems position as of Q4 2025 after selling out during the quarter.
  • Rational Advisors sold 3,900 Monolithic Power Systems shares in Q4 2025, an estimated $3.59M.
  • Rational Advisors first reported a position in Monolithic Power Systems in Q3 2025 and held it in 1 quarter.
  • Rational Advisors's Monolithic Power Systems position peaked at $3.59M in Q3 2025.
  • 1,061 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q4 2025.

Based on Rational Advisors's 13F filing for Q4 2025, filed 10 Feb 2026.