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
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 $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Quest Investment Management's MPWR Position: Q1 2026 in Review

Quest Investment Management reduced its Monolithic Power Systems (MPWR) stake by 29% in Q1 2026, selling an estimated $2.68M and leaving 6,061 shares worth $6.63M. The position accounts for 0.77% of the portfolio, ranked #37.

Quest Investment Management first reported a position in MPWR in Q3 2014 and has held it in 11 quarters since. The position peaked at $13.1M in Q3 2024. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Quest Investment Management held 6,061 shares of Monolithic Power Systems worth $6.63M as of Q1 2026.
  • Quest Investment Management sold 2,454 Monolithic Power Systems shares in Q1 2026, an estimated $2.68M.
  • Monolithic Power Systems made up 0.77% of Quest Investment Management's portfolio in Q1 2026, its #37 holding.
  • Quest Investment Management first reported a position in Monolithic Power Systems in Q3 2014 and has held it in 11 quarters since.
  • Quest Investment Management's Monolithic Power Systems position peaked at $13.1M in Q3 2024.
  • 1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Quest Investment Management's 13F filing for Q1 2026, filed 15 May 2026.