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North Star Investment Management’s Monolithic Power Systems MPWR Stock Holding History

North Star 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 		$5.47K Sell
5
-2
-29% -$2.19K ﹤0.01% 1168
2025
Q4 		$6.34K Buy
7
+6
+600% +$5.77K ﹤0.01% 1048
2025
Q3 		$921 Buy
+1
New +$811 ﹤0.01% 1174

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

North Star Investment Management's MPWR Position: Q1 2026 in Review

North Star Investment Management reduced its Monolithic Power Systems (MPWR) stake by 29% in Q1 2026, selling an estimated $2.19K and leaving 5 shares worth $5.47K. The position accounts for ﹤0.01% of the portfolio, ranked #1168.

North Star Investment Management first reported a position in MPWR in Q3 2025 and has held it in 3 quarters since. The position peaked at $6.34K in Q4 2025. 1,115 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • North Star Investment Management held 5 shares of Monolithic Power Systems worth $5.47K as of Q1 2026.
  • North Star Investment Management sold 2 Monolithic Power Systems shares in Q1 2026, an estimated $2.19K.
  • Monolithic Power Systems made up ﹤0.01% of North Star Investment Management's portfolio in Q1 2026, its #1168 holding.
  • North Star Investment Management first reported a position in Monolithic Power Systems in Q3 2025 and has held it in 3 quarters since.
  • North Star Investment Management's Monolithic Power Systems position peaked at $6.34K in Q4 2025.
  • 1,115 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on North Star Investment Management's 13F filing for Q1 2026, filed 23 Apr 2026.