SG Americas Securities
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SG Americas Securities’s Monolithic Power Systems MPWR Stock Holding History

SG Americas Securities’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 		$312K Buy
+20,500
New +$30.8M ﹤0.01% 2562
2019
Q1 		– Sell
-38,400
Closed -$29K – 3529
2018
Q4 		$29K Buy
+38,400
New +$4.6M ﹤0.01% 2890

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 $3.38T AUM 44.17% 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

SG Americas Securities's MPWR Position: Q2 2026 in Review

SG Americas Securities reduced its Monolithic Power Systems (MPWR) stake by 11% in Q2 2026, selling an estimated $29M and leaving 162,475 shares worth $225M. The position accounts for 0.13% of the portfolio, ranked #119.

SG Americas Securities first reported a position in MPWR in Q3 2013 and has held it in 46 quarters since. The position peaked at $238M in Q4 2025. 1,246 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • SG Americas Securities held 162,475 shares of Monolithic Power Systems worth $225M as of Q2 2026.
  • SG Americas Securities sold 19,291 Monolithic Power Systems shares in Q2 2026, an estimated $29M.
  • Monolithic Power Systems made up 0.13% of SG Americas Securities's portfolio in Q2 2026, its #119 holding.
  • SG Americas Securities first reported a position in Monolithic Power Systems in Q3 2013 and has held it in 46 quarters since.
  • SG Americas Securities's Monolithic Power Systems position peaked at $238M in Q4 2025.
  • 1,246 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on SG Americas Securities's 13F filing for Q2 2026, filed 7 Aug 2026.