State Street
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State Street’s Monolithic Power Systems MPWR Stock Holding History

State Street’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 		$2.4B Buy
2,188,454
+8,035
+0.4% +$8.78M 0.08% 210
2025
Q4 		$1.98B Buy
2,180,419
+45,715
+2% +$44M 0.07% 243
2025
Q3 		$1.97B Buy
2,134,704
+14,670
+0.7% +$11.9M 0.07% 244
2025
Q2 		$1.55B Buy
2,120,034
+4,329
+0.2% +$2.76M 0.06% 279
2025
Q1 		$1.23B Sell
2,115,705
-44,314
-2% -$27.9M 0.05% 329
2024
Q4 		$1.28B Buy
2,160,019
+74,873
+4% +$54.2M 0.05% 319
2024
Q3 		$1.93B Buy
2,085,146
+42,678
+2% +$36.8M 0.08% 229
2024
Q2 		$1.68B Buy
2,042,468
+47,877
+2% +$34.6M 0.07% 241
2024
Q1 		$1.35B Buy
1,994,591
+43,900
+2% +$29.3M 0.06% 286
2023
Q4 		$1.23B Buy
1,950,691
+70,100
+4% +$36.6M 0.06% 296
2023
Q3 		$871M Buy
1,880,591
+27,416
+1% +$14M 0.05% 344
2023
Q2 		$1B Buy
1,853,175
+41,208
+2% +$19.6M 0.05% 334
2023
Q1 		$909M Buy
1,811,967
+53,355
+3% +$24.5M 0.05% 344
2022
Q4 		$623M Sell
1,758,612
-28,607
-2% -$10.3M 0.04% 424
2022
Q3 		$651M Buy
1,787,219
+40,022
+2% +$17.8M 0.04% 397
2022
Q2 		$672M Sell
1,747,197
-69,292
-4% -$29.3M 0.04% 396
2022
Q1 		$884M Buy
1,816,489
+552
+0% +$241K 0.04% 378
2021
Q4 		$897M Buy
1,815,937
+73,538
+4% +$38M 0.04% 393
2021
Q3 		$846M Buy
1,742,399
+12,615
+0.7% +$5.74M 0.04% 382
2021
Q2 		$647M Buy
1,729,784
+43,923
+3% +$15.5M 0.03% 461
2021
Q1 		$596M Buy
1,685,861
+278,332
+20% +$101M 0.03% 451
2020
Q4 		$516M Buy
1,407,529
+366,676
+35% +$118M 0.03% 461
2020
Q3 		$292M Sell
1,040,853
-59,862
-5% -$15.6M 0.02% 575
2020
Q2 		$261M Buy
1,100,715
+33,231
+3% +$6.73M 0.02% 593
2020
Q1 		$179M Buy
1,067,484
+12,863
+1% +$2.2M 0.02% 641
2019
Q4 		$188M Buy
1,054,621
+3,433
+0.3% +$548K 0.01% 729
2019
Q3 		$164M Sell
1,051,188
-1,265
-0.1% -$189K 0.01% 755
2019
Q2 		$143M Sell
1,052,453
-6,494
-0.6% -$883K 0.01% 829
2019
Q1 		$144M Buy
1,058,947
+56,416
+6% +$7.4M 0.01% 806
2018
Q4 		$117M Sell
1,002,531
-87,649
-8% -$10.5M 0.01% 822
2018
Q3 		$137M Buy
1,090,180
+15,518
+1% +$2.16M 0.01% 879
2018
Q2 		$144M Sell
1,074,662
-311,193
-22% -$39.6M 0.01% 827
2018
Q1 		$160M Sell
1,385,855
-17,811
-1% -$2.11M 0.01% 769
2017
Q4 		$158M Buy
1,403,666
+21,689
+2% +$2.52M 0.01% 784
2017
Q3 		$147M Buy
1,381,977
+19,416
+1% +$1.97M 0.01% 781
2017
Q2 		$131M Buy
1,362,561
+48,013
+4% +$4.58M 0.01% 824
2017
Q1 		$121M Buy
1,314,548
+52,796
+4% +$4.68M 0.01% 845
2016
Q4 		$103M Sell
1,261,752
-9,660
-0.8% -$776K 0.01% 895
2016
Q3 		$102M Buy
1,271,412
+423,975
+50% +$31.3M 0.01% 866
2016
Q2 		$57.9M Sell
847,437
-655
-0.1% -$42.9K 0.01% 1111
2016
Q1 		$54M Buy
848,092
+11,822
+1% +$704K 0.01% 1138
2015
Q4 		$53.3M Buy
836,270
+41,729
+5% +$2.59M 0.01% 1149
2015
Q3 		$40.7M Sell
794,541
-43,172
-5% -$2.14M ﹤0.01% 1284
2015
Q2 		$42.5M Buy
837,713
+41,017
+5% +$2.17M ﹤0.01% 1366
2015
Q1 		$41.9M Buy
796,696
+8,826
+1% +$445K ﹤0.01% 1346
2014
Q4 		$39.2M Buy
787,870
+7,819
+1% +$351K ﹤0.01% 1348
2014
Q3 		$34.4M Sell
780,051
-8,223
-1% -$362K ﹤0.01% 1376
2014
Q2 		$33.4M Buy
788,274
+20,323
+3% +$788K ﹤0.01% 1449
2014
Q1 		$29.8M Sell
767,951
-8,467
-1% -$298K ﹤0.01% 1495
2013
Q4 		$26.9M Buy
776,418
+70,468
+10% +$2.25M ﹤0.01% 1545
2013
Q3 		$21.4M Buy
705,950
+36,454
+5% +$1.02M ﹤0.01% 1657
2013
Q2 		$16.1M Buy
+669,496
New +$15.9M ﹤0.01% 1767

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
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
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

State Street's MPWR Position: Q1 2026 in Review

State Street increased its Monolithic Power Systems (MPWR) stake by 0.37% in Q1 2026, buying an estimated $8.78M and bringing the position to 2,188,454 shares worth $2.4B. The position accounts for 0.08% of the portfolio, ranked #210.

State Street first reported a position in MPWR in Q2 2013 and has held it in 52 quarters since. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • State Street held 2,188,454 shares of Monolithic Power Systems worth $2.4B as of Q1 2026.
  • State Street bought 8,035 Monolithic Power Systems shares in Q1 2026, an estimated $8.78M.
  • Monolithic Power Systems made up 0.08% of State Street's portfolio in Q1 2026, its #210 holding.
  • State Street first reported a position in Monolithic Power Systems in Q2 2013 and has held it in 52 quarters since.
  • 1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on State Street's 13F filing for Q1 2026, filed 15 May 2026.