QIM
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Quest Investment Management’s Monolithic Power Systems MPWR Stock Holding History

Quest Investment Management’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 		$7.05M Sell
5,100
-961
-16% -$1.44M 0.82% 37
2026
Q1 		$6.63M Sell
6,061
-2,454
-29% -$2.68M 0.77% 37
2025
Q4 		$7.72M Sell
8,515
-3,230
-28% -$3.11M 0.83% 41
2025
Q3 		$10.8M Sell
11,745
-1,425
-11% -$1.16M 1.13% 31
2025
Q2 		$9.63M Sell
13,170
-246
-2% -$157K 1.06% 34
2025
Q1 		$7.78M Sell
13,416
-118
-0.9% -$74.4K 0.96% 36
2024
Q4 		$8.01M Sell
13,534
-648
-5% -$469K 0.93% 34
2024
Q3 		$13.1M Sell
14,182
-425
-3% -$367K 1.53% 27
2024
Q2 		$12M Buy
14,607
+11,651
+394% +$8.41M 1.33% 29
2024
Q1 		$2M Sell
2,956
-359
-11% -$240K 0.22% 56
2023
Q4 		$2.09M Buy
+3,315
New +$1.73M 0.26% 51
2014
Q4 		– Sell
-8,100
Closed -$357K – 167
2014
Q3 		$357K Buy
+8,100
New +$356K 0.04% 162

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

Quest Investment Management's MPWR Position: Q2 2026 in Review

Quest Investment Management reduced its Monolithic Power Systems (MPWR) stake by 16% in Q2 2026, selling an estimated $1.44M and leaving 5,100 shares worth $7.05M. The position accounts for 0.82% of the portfolio, ranked #37.

Quest Investment Management first reported a position in MPWR in Q3 2014 and has held it in 12 quarters since. The position peaked at $13.1M in Q3 2024. 1,245 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Quest Investment Management held 5,100 shares of Monolithic Power Systems worth $7.05M as of Q2 2026.
  • Quest Investment Management sold 961 Monolithic Power Systems shares in Q2 2026, an estimated $1.44M.
  • Monolithic Power Systems made up 0.82% of Quest Investment Management's portfolio in Q2 2026, its #37 holding.
  • Quest Investment Management first reported a position in Monolithic Power Systems in Q3 2014 and has held it in 12 quarters since.
  • Quest Investment Management's Monolithic Power Systems position peaked at $13.1M in Q3 2024.
  • 1,245 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Quest Investment Management's 13F filing for Q2 2026, filed 13 Aug 2026.