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Arcadia Investment Management’s Monolithic Power Systems MPWR Stock Holding History

Arcadia 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 		$21.8M Sell
19,901
-312
-2% -$341K 3.73% 8
2025
Q4 		$18.3M Sell
20,213
-130
-0.6% -$125K 2.97% 11
2025
Q3 		$18.7M Buy
20,343
+96
+0.5% +$77.8K 2.89% 10
2025
Q2 		$14.8M Sell
20,247
-828
-4% -$528K 2.37% 13
2025
Q1 		$12.2M Sell
21,075
-1,040
-5% -$655K 2.21% 15
2024
Q4 		$13.1M Buy
22,115
+567
+3% +$411K 2.09% 16
2024
Q3 		$19.9M Sell
21,548
-134
-0.6% -$116K 3.28% 8
2024
Q2 		$17.8M Sell
21,682
-1,035
-5% -$747K 3.04% 9
2024
Q1 		$15.4M Sell
22,717
-237
-1% -$158K 2.72% 11
2023
Q4 		$14.5M Sell
22,954
-487
-2% -$254K 2.77% 10
2023
Q3 		$10.8M Sell
23,441
-84
-0.4% -$43K 2.29% 14
2023
Q2 		$12.7M Sell
23,525
-1,791
-7% -$851K 2.58% 10
2023
Q1 		$12.7M Sell
25,316
-281
-1% -$129K 2.76% 9
2022
Q4 		$9.05M Sell
25,597
-909
-3% -$327K 2.11% 15
2022
Q3 		$9.63M Sell
26,506
-1,373
-5% -$611K 2.33% 10
2022
Q2 		$10.7M Buy
27,879
+206
+0.7% +$87K 2.39% 9
2022
Q1 		$13.4M Sell
27,673
-901
-3% -$393K 2.54% 9
2021
Q4 		$14.1M Sell
28,574
-1,442
-5% -$744K 2.36% 13
2021
Q3 		$14.5M Sell
30,016
-823
-3% -$374K 2.69% 8
2021
Q2 		$11.5M Sell
30,839
-1,650
-5% -$581K 2.17% 14
2021
Q1 		$11.5M Sell
32,489
-545
-2% -$198K 2.3% 13
2020
Q4 		$12.1M Sell
33,034
-2,835
-8% -$909K 2.5% 12
2020
Q3 		$10M Buy
35,869
+55
+0.2% +$14.3K 2.16% 15
2020
Q2 		$8.49M Buy
35,814
+144
+0.4% +$29.1K 2.07% 19
2020
Q1 		$5.97M Buy
35,670
+240
+0.7% +$41.1K 1.81% 19
2019
Q4 		$6.31M Buy
35,430
+2,942
+9% +$470K 1.6% 24
2019
Q3 		$5.06M Buy
32,488
+691
+2% +$103K 1.38% 26
2019
Q2 		$4.32M Buy
31,797
+1,065
+3% +$145K 1.18% 31
2019
Q1 		$4.16M Buy
30,732
+75
+0.2% +$9.84K 1.2% 32
2018
Q4 		$3.56M Sell
30,657
-2,215
-7% -$265K 1.19% 32
2018
Q3 		$4.13M Buy
32,872
+200
+0.6% +$27.9K 1.09% 37
2018
Q2 		$4.37M Sell
32,672
-175
-0.5% -$22.3K 1.22% 33
2018
Q1 		$3.8M Buy
32,847
+1,335
+4% +$158K 1.07% 38
2017
Q4 		$3.54M Buy
31,512
+2,995
+11% +$348K 0.99% 39
2017
Q3 		$3.04M Buy
28,517
+1,200
+4% +$122K 0.93% 42
2017
Q2 		$2.63M Buy
27,317
+24,452
+853% +$2.33M 0.84% 46
2017
Q1 		$264K Buy
2,865
+2,592
+949% +$230K 0.08% 114
2016
Q4 		$22K Hold
273
– – 0.01% 257
2016
Q3 		$22K Hold
273
– – 0.01% 264
2016
Q2 		$19K Buy
+273
New +$17.9K 0.01% 345

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

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

Arcadia Investment Management reduced its Monolithic Power Systems (MPWR) stake by 1.5% in Q1 2026, selling an estimated $341K and leaving 19,901 shares worth $21.8M. The position accounts for 3.73% of the portfolio, ranked #8.

Arcadia Investment Management first reported a position in MPWR in Q2 2016 and has held it in 40 quarters since. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Arcadia Investment Management held 19,901 shares of Monolithic Power Systems worth $21.8M as of Q1 2026.
  • Arcadia Investment Management sold 312 Monolithic Power Systems shares in Q1 2026, an estimated $341K.
  • Monolithic Power Systems made up 3.73% of Arcadia Investment Management's portfolio in Q1 2026, its #8 holding.
  • Arcadia Investment Management first reported a position in Monolithic Power Systems in Q2 2016 and has held it in 40 quarters since.
  • 1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Arcadia Investment Management's 13F filing for Q1 2026, filed 22 Apr 2026.