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Rakuten Investment Management’s Monolithic Power Systems MPWR Stock Holding History

Rakuten Investment 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
Q2 		$23.7M Buy
18,041
+3,108
+21% +$4.67M 0.07% 85
2026
Q1 		$15M Buy
14,933
+1,626
+12% +$1.78M 0.03% 119
2025
Q4 		$12.4M Sell
13,307
-200,957
-94% -$193M 0.04% 130
2025
Q3 		$35.1M Buy
+214,264
New +$174M 0.13% 41
2025
Q1 		$4.99M Buy
+8,601
New +$5.42M 0.02% 208

Other funds holding MPWR

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
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Rakuten Investment Management's MPWR Position: Q2 2026 in Review

Rakuten Investment Management increased its Monolithic Power Systems (MPWR) stake by 21% in Q2 2026, buying an estimated $4.67M and bringing the position to 18,041 shares worth $23.7M. The position accounts for 0.07% of the portfolio, ranked #85.

Rakuten Investment Management first reported a position in MPWR in Q1 2025 and has held it in 5 quarters since. The position peaked at $35.1M in Q3 2025. 1,246 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Rakuten Investment Management held 18,041 shares of Monolithic Power Systems worth $23.7M as of Q2 2026.
  • Rakuten Investment Management bought 3,108 Monolithic Power Systems shares in Q2 2026, an estimated $4.67M.
  • Monolithic Power Systems made up 0.07% of Rakuten Investment Management's portfolio in Q2 2026, its #85 holding.
  • Rakuten Investment Management first reported a position in Monolithic Power Systems in Q1 2025 and has held it in 5 quarters since.
  • Rakuten Investment Management's Monolithic Power Systems position peaked at $35.1M in Q3 2025.
  • 1,246 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Rakuten Investment Management's 13F filing for Q2 2026, filed 18 Aug 2026.