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Harbor Investment Advisory’s Monolithic Power Systems MPWR Stock Holding History

Harbor Investment Advisory’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 		$13.8K Sell
10
-7
-41% -$10.5K ﹤0.01% 1007
2026
Q1 		$18.6K Sell
17
-4
-19% -$4.37K ﹤0.01% 797
2025
Q4 		$19K Hold
21
– – ﹤0.01% 831
2025
Q3 		$19.3K Hold
21
– – ﹤0.01% 796
2025
Q2 		$15.4K Hold
21
– – ﹤0.01% 820
2025
Q1 		$12.2K Hold
21
– – ﹤0.01% 831
2024
Q4 		$12.4K Buy
21
+10
+91% +$7.24K ﹤0.01% 824
2024
Q3 		$10.2K Hold
11
– – ﹤0.01% 865
2024
Q2 		$9.04K Hold
11
– – ﹤0.01% 877
2024
Q1 		$7.45K Hold
11
– – ﹤0.01% 912
2023
Q4 		$6.94K Hold
11
– – ﹤0.01% 888
2023
Q3 		$5.08K Hold
11
– – ﹤0.01% 913
2023
Q2 		$5.94K Hold
11
– – ﹤0.01% 1102
2023
Q1 		$5.51K Hold
11
– – ﹤0.01% 1119
2022
Q4 		$3.89K Buy
11
+3
+38% +$1.08K ﹤0.01% 1142
2022
Q3 		$3K Buy
+8
New +$3.56K ﹤0.01% 1200

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

Harbor Investment Advisory's MPWR Position: Q2 2026 in Review

Harbor Investment Advisory reduced its Monolithic Power Systems (MPWR) stake by 41% in Q2 2026, selling an estimated $10.5K and leaving 10 shares worth $13.8K. The position accounts for ﹤0.01% of the portfolio, ranked #1007.

Harbor Investment Advisory first reported a position in MPWR in Q3 2022 and has held it in 16 quarters since. The position peaked at $19.3K in Q3 2025. 1,246 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Harbor Investment Advisory held 10 shares of Monolithic Power Systems worth $13.8K as of Q2 2026.
  • Harbor Investment Advisory sold 7 Monolithic Power Systems shares in Q2 2026, an estimated $10.5K.
  • Monolithic Power Systems made up ﹤0.01% of Harbor Investment Advisory's portfolio in Q2 2026, its #1007 holding.
  • Harbor Investment Advisory first reported a position in Monolithic Power Systems in Q3 2022 and has held it in 16 quarters since.
  • Harbor Investment Advisory's Monolithic Power Systems position peaked at $19.3K in Q3 2025.
  • 1,246 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Harbor Investment Advisory's 13F filing for Q2 2026, filed 7 Jul 2026.