HI
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Harbour Investments’s Monolithic Power Systems MPWR Stock Holding History

Harbour Investments’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 		$158K Buy
115
+22
+24% +$33K ﹤0.01% 1733
2026
Q1 		$102K Buy
93
+16
+21% +$17.5K ﹤0.01% 1924
2025
Q4 		$69.8K Buy
77
+40
+108% +$38.5K ﹤0.01% 1802
2025
Q3 		$34.1K Buy
37
+10
+37% +$8.11K ﹤0.01% 2076
2025
Q2 		$19.7K Buy
27
+6
+29% +$3.82K ﹤0.01% 2240
2025
Q1 		$12.2K Buy
21
+9
+75% +$5.67K ﹤0.01% 2429
2024
Q4 		$7.1K Sell
12
-1
-8% -$724 ﹤0.01% 2605
2024
Q3 		$12K Hold
13
– – ﹤0.01% 2274
2024
Q2 		$10.7K Buy
13
+4
+44% +$2.89K ﹤0.01% 2232
2024
Q1 		$6.1K Sell
9
-3
-25% -$2K ﹤0.01% 2399
2023
Q4 		$7.57K Buy
12
+3
+33% +$1.57K ﹤0.01% 2258
2023
Q3 		$4.16K Buy
9
+8
+800% +$4.09K ﹤0.01% 2338
2023
Q2 		$540 Sell
1
-76
-99% -$36.1K ﹤0.01% 2807
2023
Q1 		$38.5K Sell
77
-44
-36% -$20.2K ﹤0.01% 1464
2022
Q4 		$42.8K Buy
121
+10
+9% +$3.59K ﹤0.01% 1361
2022
Q3 		$43K Hold
111
– – ﹤0.01% 1327
2022
Q2 		$43K Buy
+111
New +$46.9K ﹤0.01% 1327
2021
Q4 		$50K Sell
102
-43
-30% -$22.2K ﹤0.01% 1264
2021
Q3 		$70K Buy
145
+45
+45% +$20.5K ﹤0.01% 1569
2021
Q2 		$38K Buy
100
+65
+186% +$22.9K ﹤0.01% 1964
2021
Q1 		$12K Buy
+35
New +$12.7K ﹤0.01% 2504

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

Harbour Investments's MPWR Position: Q2 2026 in Review

Harbour Investments increased its Monolithic Power Systems (MPWR) stake by 24% in Q2 2026, buying an estimated $33K and bringing the position to 115 shares worth $158K. The position accounts for ﹤0.01% of the portfolio, ranked #1733.

Harbour Investments first reported a position in MPWR in Q1 2021 and has held it in 21 quarters since. 1,246 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Harbour Investments held 115 shares of Monolithic Power Systems worth $158K as of Q2 2026.
  • Harbour Investments bought 22 Monolithic Power Systems shares in Q2 2026, an estimated $33K.
  • Monolithic Power Systems made up ﹤0.01% of Harbour Investments's portfolio in Q2 2026, its #1733 holding.
  • Harbour Investments first reported a position in Monolithic Power Systems in Q1 2021 and has held it in 21 quarters since.
  • 1,246 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Harbour Investments's 13F filing for Q2 2026, filed 12 Aug 2026.