Bank of America
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Bank of America’s Monolithic Power Systems MPWR Stock Holding History

Bank of America’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
-1,300
Closed -$1.2M – 8009
2025
Q3 		$1.2M Buy
+1,300
New +$1.05M ﹤0.01% 5203

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

Bank of America's MPWR Position: Q1 2026 in Review

Bank of America reduced its Monolithic Power Systems (MPWR) stake by 30% in Q1 2026, selling an estimated $183M and leaving 382,162 shares worth $418M. The position accounts for 0.03% of the portfolio, ranked #454.

Bank of America first reported a position in MPWR in Q2 2013 and has held it in 52 quarters since. The position peaked at $707M in Q3 2024. 1,115 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Bank of America held 382,162 shares of Monolithic Power Systems worth $418M as of Q1 2026.
  • Bank of America sold 167,413 Monolithic Power Systems shares in Q1 2026, an estimated $183M.
  • Monolithic Power Systems made up 0.03% of Bank of America's portfolio in Q1 2026, its #454 holding.
  • Bank of America first reported a position in Monolithic Power Systems in Q2 2013 and has held it in 52 quarters since.
  • Bank of America's Monolithic Power Systems position peaked at $707M in Q3 2024.
  • 1,115 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Bank of America's 13F filing for Q1 2026, filed 18 May 2026.