4A
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4D Advisors’s Monolithic Power Systems MPWR Stock Holding History

4D Advisors’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 		$4.15M Sell
3,000
-1,000
-25% -$1.5M 1.59% 31
2026
Q1 		$4.37M Hold
4,000
– – 2.77% 16
2025
Q4 		$3.63M Sell
4,000
-2,500
-38% -$2.41M 1.99% 27
2025
Q3 		$5.98M Sell
6,500
-4,500
-41% -$3.65M 3.19% 13
2025
Q2 		$8.05M Buy
11,000
+8,000
+267% +$5.1M 4.33% 6
2025
Q1 		$1.74M Sell
3,000
-5,500
-65% -$3.47M 1.35% 28
2024
Q4 		$5.03M Buy
+8,500
New +$6.16M 3.51% 10

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

4D Advisors's MPWR Position: Q2 2026 in Review

4D Advisors reduced its Monolithic Power Systems (MPWR) stake by 25% in Q2 2026, selling an estimated $1.5M and leaving 3,000 shares worth $4.15M. The position accounts for 1.59% of the portfolio, ranked #31.

4D Advisors first reported a position in MPWR in Q4 2024 and has held it in 7 quarters since. The position peaked at $8.05M in Q2 2025. 1,240 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • 4D Advisors held 3,000 shares of Monolithic Power Systems worth $4.15M as of Q2 2026.
  • 4D Advisors sold 1,000 Monolithic Power Systems shares in Q2 2026, an estimated $1.5M.
  • Monolithic Power Systems made up 1.59% of 4D Advisors's portfolio in Q2 2026, its #31 holding.
  • 4D Advisors first reported a position in Monolithic Power Systems in Q4 2024 and has held it in 7 quarters since.
  • 4D Advisors's Monolithic Power Systems position peaked at $8.05M in Q2 2025.
  • 1,240 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on 4D Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.