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WBI Investments’s Monolithic Power Systems MPWR Stock Holding History

WBI Investments’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 		$321K Sell
293
-585
-67% -$639K 0.09% 232
2025
Q4 		$795K Sell
878
-689
-44% -$663K 0.21% 138
2025
Q3 		$1.44M Buy
+1,567
New +$1.27M 0.37% 69
2024
Q3 		– Sell
-306
Closed -$251K – 257
2024
Q2 		$251K Buy
+306
New +$221K 0.06% 153
2023
Q3 		– Sell
-1,607
Closed -$868K – 217
2023
Q2 		$868K Buy
+1,607
New +$763K 0.16% 129
2015
Q4 		– Sell
-93,723
Closed -$4.8M – 239
2015
Q3 		$4.8M Buy
+93,723
New +$4.65M 0.17% 75

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

WBI Investments's MPWR Position: Q1 2026 in Review

WBI Investments reduced its Monolithic Power Systems (MPWR) stake by 67% in Q1 2026, selling an estimated $639K and leaving 293 shares worth $321K. The position accounts for 0.09% of the portfolio, ranked #232.

WBI Investments first reported a position in MPWR in Q3 2015 and has held it in 6 quarters since. The position peaked at $4.8M in Q3 2015. 1,115 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • WBI Investments held 293 shares of Monolithic Power Systems worth $321K as of Q1 2026.
  • WBI Investments sold 585 Monolithic Power Systems shares in Q1 2026, an estimated $639K.
  • Monolithic Power Systems made up 0.09% of WBI Investments's portfolio in Q1 2026, its #232 holding.
  • WBI Investments first reported a position in Monolithic Power Systems in Q3 2015 and has held it in 6 quarters since.
  • WBI Investments's Monolithic Power Systems position peaked at $4.8M in Q3 2015.
  • 1,115 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on WBI Investments's 13F filing for Q1 2026, filed 11 May 2026.