John Boyer Inc
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John Boyer Inc’s Monolithic Power Systems MPWR Stock Holding History

John Boyer Inc’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
Q3 		$91.9K Buy
+68
New +$89.1K 0.07% 68

Other funds holding MPWR

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Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $474B AUM 32.39% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Rafferty Asset Management
Rafferty Asset Management New York $38.4B AUM 89% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $296B AUM 23.14% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $500B AUM 36.84% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

John Boyer Inc's MPWR Position: Q3 2026 in Review

John Boyer Inc opened a new position in Monolithic Power Systems (MPWR) in Q3 2026: 68 shares worth $91.9K. The stake represents 0.07% of the portfolio and ranks #68 among its holdings.

929 funds tracked by Wall St. Rank hold MPWR as of Q3 2026.

  • John Boyer Inc held 68 shares of Monolithic Power Systems worth $91.9K as of Q3 2026.
  • Monolithic Power Systems was a new John Boyer Inc position in Q3 2026.
  • Monolithic Power Systems made up 0.07% of John Boyer Inc's portfolio in Q3 2026, its #68 holding.
  • 929 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q3 2026.

Based on John Boyer Inc's 13F filing for Q3 2026, filed 27 Oct 2026.