WI
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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
Q2 		$474K Buy
343
+50
+17% +$75.1K 0.12% 203
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 $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 $3.37T AUM 44.26% 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

WBI Investments's MPWR Position: Q2 2026 in Review

WBI Investments increased its Monolithic Power Systems (MPWR) stake by 17% in Q2 2026, buying an estimated $75.1K and bringing the position to 343 shares worth $474K. The position accounts for 0.12% of the portfolio, ranked #203.

WBI Investments first reported a position in MPWR in Q3 2015 and has held it in 7 quarters since. The position peaked at $4.8M in Q3 2015. 1,245 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • WBI Investments held 343 shares of Monolithic Power Systems worth $474K as of Q2 2026.
  • WBI Investments bought 50 Monolithic Power Systems shares in Q2 2026, an estimated $75.1K.
  • Monolithic Power Systems made up 0.12% of WBI Investments's portfolio in Q2 2026, its #203 holding.
  • WBI Investments first reported a position in Monolithic Power Systems in Q3 2015 and has held it in 7 quarters since.
  • WBI Investments's Monolithic Power Systems position peaked at $4.8M in Q3 2015.
  • 1,245 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on WBI Investments's 13F filing for Q2 2026, filed 11 Aug 2026.