Robeco Institutional Asset Management
MPWR icon

Robeco Institutional Asset Management’s Monolithic Power Systems MPWR Stock Holding History

Robeco Institutional Asset 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
Q2 		$65.1M Buy
47,124
+33,251
+240% +$49.9M 0.08% 235
2026
Q1 		$15.2M Buy
13,873
+8,790
+173% +$9.6M 0.02% 373
2025
Q4 		$4.61M Sell
5,083
-1,210
-19% -$1.16M 0.01% 570
2025
Q3 		$5.79M Sell
6,293
-541
-8% -$439K 0.01% 538
2025
Q2 		$5M Sell
6,834
-13,125
-66% -$8.36M 0.01% 558
2025
Q1 		$11.6M Sell
19,959
-13,018
-39% -$8.2M 0.02% 426
2024
Q4 		$19.5M Sell
32,977
-5,356
-14% -$3.88M 0.04% 336
2024
Q3 		$35.4M Buy
38,333
+17,746
+86% +$15.3M 0.07% 250
2024
Q2 		$16.9M Buy
20,587
+18,635
+955% +$13.4M 0.04% 344
2024
Q1 		$1.32M Buy
1,952
+615
+46% +$411K ﹤0.01% 747
2023
Q4 		$843K Buy
1,337
+969
+263% +$506K ﹤0.01% 794
2023
Q3 		$170K Sell
368
-209
-36% -$107K ﹤0.01% 935
2023
Q2 		$312K Sell
577
-75
-12% -$35.6K ﹤0.01% 902
2023
Q1 		$326K Buy
+652
New +$300K ﹤0.01% 887
2022
Q4 		– Sell
-29,897
Closed -$10.9M – 1011
2022
Q3 		$10.9M Sell
29,897
-1,059
-3% -$471K 0.04% 375
2022
Q2 		$11.9M Buy
30,956
+883
+3% +$373K 0.04% 376
2022
Q1 		$14.6M Buy
30,073
+9,240
+44% +$4.03M 0.03% 391
2021
Q4 		$10.3M Buy
20,833
+1,284
+7% +$663K 0.02% 452
2021
Q3 		$9.47M Sell
19,549
-2,082
-10% -$947K 0.02% 466
2021
Q2 		$8.08M Buy
21,631
+11,523
+114% +$4.06M 0.02% 518
2021
Q1 		$3.57M Sell
10,108
-2,423
-19% -$882K 0.01% 594
2020
Q4 		$4.59M Buy
+12,531
New +$4.02M 0.01% 563

Other funds holding MPWR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Citigroup
Citigroup New York $303B AUM 53.02% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return
SG Americas Securities
SG Americas Securities New York $179B AUM 65.34% 1-Year Est. Return
VNIM
Vaughan Nelson Investment Management Houston, Texas $11.3B AUM 53% 1-Year Est. Return

Robeco Institutional Asset Management's MPWR Position: Q2 2026 in Review

Robeco Institutional Asset Management increased its Monolithic Power Systems (MPWR) stake by 240% in Q2 2026, buying an estimated $49.9M and bringing the position to 47,124 shares worth $65.1M. The position accounts for 0.08% of the portfolio, ranked #235.

Robeco Institutional Asset Management first reported a position in MPWR in Q4 2020 and has held it in 22 quarters since. 677 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Robeco Institutional Asset Management held 47,124 shares of Monolithic Power Systems worth $65.1M as of Q2 2026.
  • Robeco Institutional Asset Management bought 33,251 Monolithic Power Systems shares in Q2 2026, an estimated $49.9M.
  • Monolithic Power Systems made up 0.08% of Robeco Institutional Asset Management's portfolio in Q2 2026, its #235 holding.
  • Robeco Institutional Asset Management first reported a position in Monolithic Power Systems in Q4 2020 and has held it in 22 quarters since.
  • 677 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Robeco Institutional Asset Management's 13F filing for Q2 2026, filed 21 Jul 2026.