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MPWR icon

Natixis’s Monolithic Power Systems MPWR Stock Holding History

Natixis’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 		$32.2M Sell
29,420
-1,042
-3% -$1.14M 0.12% 129
2025
Q4 		$27.6M Sell
30,462
-7,231
-19% -$6.96M 0.1% 157
2025
Q3 		$34.7M Buy
37,693
+5,154
+16% +$4.18M 0.16% 115
2025
Q2 		$23.8M Buy
32,539
+881
+3% +$561K 0.11% 130
2025
Q1 		$17.8M Sell
31,658
-28,817
-48% -$18.2M 0.1% 160
2024
Q4 		$35.8M Buy
60,475
+56,223
+1,322% +$40.7M 0.22% 85
2024
Q3 		$3.93M Sell
4,252
-621
-13% -$536K 0.02% 344
2024
Q2 		$4M Sell
4,873
-3,980
-45% -$2.87M 0.02% 320
2024
Q1 		$6M Buy
8,853
+5,563
+169% +$3.71M 0.03% 296
2023
Q4 		$2.08M Buy
3,290
+2,903
+750% +$1.52M 0.02% 409
2023
Q3 		$179K Sell
387
-6,708
-95% -$3.43M ﹤0.01% 727
2023
Q2 		$3.83M Buy
7,095
+5,646
+390% +$2.68M 0.03% 323
2023
Q1 		$725K Sell
1,449
-5,256
-78% -$2.42M 0.01% 569
2022
Q4 		$2.37M Buy
6,705
+2,883
+75% +$1.04M 0.01% 504
2022
Q3 		$1.4M Sell
3,822
-54
-1% -$24K 0.01% 684
2022
Q2 		$1.5M Buy
3,876
+65
+2% +$27.5K 0.01% 736
2022
Q1 		$1.85M Sell
3,811
-54,712
-93% -$23.8M 0.01% 770
2021
Q4 		$28.9M Buy
58,523
+53,559
+1,079% +$27.6M 0.1% 182
2021
Q3 		$2.41M Buy
4,964
+2,885
+139% +$1.31M 0.01% 689
2021
Q2 		$776K Buy
+2,079
New +$732K ﹤0.01% 641
2021
Q1 		– Sell
-13,834
Closed -$5.07M – 1144
2020
Q4 		$5.07M Buy
13,834
+1,730
+14% +$554K 0.02% 508
2020
Q3 		$3.38M Buy
12,104
+2,004
+20% +$521K 0.02% 339
2020
Q2 		$2.39M Buy
10,100
+6,900
+216% +$1.4M 0.02% 400
2020
Q1 		$536K Buy
+3,200
New +$548K ﹤0.01% 564
2017
Q2 		– Sell
-3,084
Closed -$284K – 926
2017
Q1 		$284K Buy
+3,084
New +$273K ﹤0.01% 728

Other funds holding MPWR

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 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

Natixis's MPWR Position: Q1 2026 in Review

Natixis reduced its Monolithic Power Systems (MPWR) stake by 3.4% in Q1 2026, selling an estimated $1.14M and leaving 29,420 shares worth $32.2M. The position accounts for 0.12% of the portfolio, ranked #129.

Natixis first reported a position in MPWR in Q1 2017 and has held it in 25 quarters since. The position peaked at $35.8M in Q4 2024. 1,120 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Natixis held 29,420 shares of Monolithic Power Systems worth $32.2M as of Q1 2026.
  • Natixis sold 1,042 Monolithic Power Systems shares in Q1 2026, an estimated $1.14M.
  • Monolithic Power Systems made up 0.12% of Natixis's portfolio in Q1 2026, its #129 holding.
  • Natixis first reported a position in Monolithic Power Systems in Q1 2017 and has held it in 25 quarters since.
  • Natixis's Monolithic Power Systems position peaked at $35.8M in Q4 2024.
  • 1,120 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Natixis's 13F filing for Q1 2026, filed 14 May 2026.