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Callan Family Office’s Monolithic Power Systems MPWR Stock Holding History

Callan Family Office’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 		$2.52M Buy
1,822
+63
+4% +$94.6K 0.05% 331
2026
Q1 		$1.92M Sell
1,759
-353
-17% -$386K 0.04% 366
2025
Q4 		$1.91M Buy
2,112
+934
+79% +$899K 0.04% 365
2025
Q3 		$1.08M Sell
1,178
-113
-9% -$91.6K 0.03% 362
2025
Q2 		$944K Buy
+1,291
New +$822K 0.03% 420

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

Callan Family Office's MPWR Position: Q2 2026 in Review

Callan Family Office increased its Monolithic Power Systems (MPWR) stake by 3.6% in Q2 2026, buying an estimated $94.6K and bringing the position to 1,822 shares worth $2.52M. The position accounts for 0.05% of the portfolio, ranked #331.

Callan Family Office first reported a position in MPWR in Q2 2025 and has held it in 5 quarters since. 1,240 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Callan Family Office held 1,822 shares of Monolithic Power Systems worth $2.52M as of Q2 2026.
  • Callan Family Office bought 63 Monolithic Power Systems shares in Q2 2026, an estimated $94.6K.
  • Monolithic Power Systems made up 0.05% of Callan Family Office's portfolio in Q2 2026, its #331 holding.
  • Callan Family Office first reported a position in Monolithic Power Systems in Q2 2025 and has held it in 5 quarters since.
  • 1,240 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Callan Family Office's 13F filing for Q2 2026, filed 11 Aug 2026.