PCH
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Polar Capital Holdings’s Monolithic Power Systems MPWR Stock Holding History

Polar Capital Holdings’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 		$8.07M Sell
7,380
-1,800
-20% -$1.97M 0.03% 198
2025
Q4 		$8.32M Sell
9,180
-8,850
-49% -$8.52M 0.03% 208
2025
Q3 		$16.6M Buy
18,030
+5,980
+50% +$4.85M 0.08% 169
2025
Q2 		$8.81M Sell
12,050
-5,650
-32% -$3.6M 0.05% 204
2025
Q1 		$10.3M Buy
17,700
+16,700
+1,670% +$10.5M 0.06% 192
2024
Q4 		$592K Sell
1,000
-204,829
-100% -$148M ﹤0.01% 286
2024
Q3 		$190M Buy
205,829
+27,205
+15% +$23.5M 0.91% 23
2024
Q2 		$147M Buy
178,624
+63,458
+55% +$45.8M 0.86% 28
2024
Q1 		$78M Sell
115,166
-105,053
-48% -$70.1M 0.41% 65
2023
Q4 		$139M Sell
220,219
-52,872
-19% -$27.6M 0.85% 22
2023
Q3 		$126M Sell
273,091
-61,428
-18% -$31.4M 0.94% 23
2023
Q2 		$181M Sell
334,519
-2,454
-0.7% -$1.17M 0.91% 16
2023
Q1 		$169M Buy
336,973
+39,853
+13% +$18.3M 1.1% 15
2022
Q4 		$105M Buy
297,120
+15,832
+6% +$5.69M 0.84% 26
2022
Q3 		$102K Sell
281,288
-16,076
-5% -$7.15M 0.65% 37
2022
Q2 		$114K Buy
297,364
+108,965
+58% +$46M 0.67% 29
2022
Q1 		$91.5K Buy
188,399
+62,844
+50% +$27.4M 0.41% 54
2021
Q4 		$61.9K Sell
125,555
-19,558
-13% -$10.1M 0.23% 92
2021
Q3 		$70.3K Sell
145,113
-163,224
-53% -$74.2M 0.29% 84
2021
Q2 		$115K Buy
308,337
+95,379
+45% +$33.6M 0.5% 42
2021
Q1 		$75.2M Buy
212,958
+25,102
+13% +$9.14M 0.47% 63
2020
Q4 		$68.8M Buy
+187,856
New +$60.2M 0.42% 68

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

Polar Capital Holdings's MPWR Position: Q1 2026 in Review

Polar Capital Holdings reduced its Monolithic Power Systems (MPWR) stake by 20% in Q1 2026, selling an estimated $1.97M and leaving 7,380 shares worth $8.07M. The position accounts for 0.03% of the portfolio, ranked #198.

Polar Capital Holdings first reported a position in MPWR in Q4 2020 and has held it in 22 quarters since. The position peaked at $190M in Q3 2024. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Polar Capital Holdings held 7,380 shares of Monolithic Power Systems worth $8.07M as of Q1 2026.
  • Polar Capital Holdings sold 1,800 Monolithic Power Systems shares in Q1 2026, an estimated $1.97M.
  • Monolithic Power Systems made up 0.03% of Polar Capital Holdings's portfolio in Q1 2026, its #198 holding.
  • Polar Capital Holdings first reported a position in Monolithic Power Systems in Q4 2020 and has held it in 22 quarters since.
  • Polar Capital Holdings's Monolithic Power Systems position peaked at $190M in Q3 2024.
  • 1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Polar Capital Holdings's 13F filing for Q1 2026, filed 15 May 2026.