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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
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 $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

Rakuten Investment Management's MPWR Position: Q1 2026 in Review

Rakuten Investment Management increased its Monolithic Power Systems (MPWR) stake by 12% in Q1 2026, buying an estimated $1.78M and bringing the position to 14,933 shares worth $15M. The position accounts for 0.03% of the portfolio, ranked #119.

Rakuten Investment Management first reported a position in MPWR in Q1 2025 and has held it in 4 quarters since. The position peaked at $35.1M in Q3 2025. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Rakuten Investment Management held 14,933 shares of Monolithic Power Systems worth $15M as of Q1 2026.
  • Rakuten Investment Management bought 1,626 Monolithic Power Systems shares in Q1 2026, an estimated $1.78M.
  • Monolithic Power Systems made up 0.03% of Rakuten Investment Management's portfolio in Q1 2026, its #119 holding.
  • Rakuten Investment Management first reported a position in Monolithic Power Systems in Q1 2025 and has held it in 4 quarters since.
  • Rakuten Investment Management's Monolithic Power Systems position peaked at $35.1M in Q3 2025.
  • 1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Rakuten Investment Management's 13F filing for Q1 2026, filed 12 May 2026.