TRCT
MPWR icon

Tower Research Capital (TRC)’s Monolithic Power Systems MPWR Stock Holding History

Tower Research Capital (TRC)’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 		$3.95M Sell
3,614
-5,816
-62% -$6.35M 0.1% 194
2025
Q4 		$8.55M Buy
9,430
+6,854
+266% +$6.6M 0.21% 82
2025
Q3 		$2.37M Buy
2,576
+2,134
+483% +$1.73M 0.07% 251
2025
Q2 		$323K Sell
442
-212
-32% -$135K 0.01% 1354
2025
Q1 		$379K Sell
654
-6,749
-91% -$4.25M 0.01% 1006
2024
Q4 		$4.38M Buy
7,403
+5,137
+227% +$3.72M 0.09% 181
2024
Q3 		$2.09M Sell
2,266
-246
-10% -$212K 0.06% 268
2024
Q2 		$2.06M Buy
2,512
+821
+49% +$592K 0.03% 418
2024
Q1 		$1.15M Sell
1,691
-6,145
-78% -$4.1M 0.03% 462
2023
Q4 		$4.94M Buy
7,836
+2,981
+61% +$1.56M 0.06% 264
2023
Q3 		$2.24M Buy
4,855
+3,319
+216% +$1.7M 0.07% 277
2023
Q2 		$830K Buy
1,536
+973
+173% +$462K 0.03% 628
2023
Q1 		$282K Sell
563
-8,694
-94% -$4M 0.01% 1172
2022
Q4 		$3.27M Sell
9,257
-3,086
-25% -$1.11M 0.14% 101
2022
Q3 		$4.49M Buy
12,343
+670
+6% +$298K 0.07% 216
2022
Q2 		$4.48M Sell
11,673
-11,370
-49% -$4.8M 0.1% 169
2022
Q1 		$11.2M Buy
23,043
+18,667
+427% +$8.14M 0.11% 161
2021
Q4 		$2.16M Buy
4,376
+2,146
+96% +$1.11M 0.04% 386
2021
Q3 		$1.08M Buy
2,230
+1,210
+119% +$550K 0.03% 496
2021
Q2 		$381K Sell
1,020
-2,953
-74% -$1.04M 0.01% 1402
2021
Q1 		$1.4M Buy
3,973
+2,143
+117% +$780K 0.02% 610
2020
Q4 		$670K Sell
1,830
-5,665
-76% -$1.82M 0.02% 783
2020
Q3 		$2.1M Sell
7,495
-200
-3% -$52K 0.02% 364
2020
Q2 		$1.82M Buy
7,695
+5,102
+197% +$1.03M 0.07% 248
2020
Q1 		$434K Buy
2,593
+2,543
+5,086% +$436K 0.03% 477
2019
Q4 		$9K Sell
50
-2,245
-98% -$359K ﹤0.01% 2388
2019
Q3 		$357K Buy
2,295
+1,742
+315% +$260K 0.02% 722
2019
Q2 		$75K Sell
553
-4,020
-88% -$547K 0.01% 1338
2019
Q1 		$619K Buy
+4,573
New +$600K 0.04% 482
2018
Q4 		– Sell
-3,358
Closed -$421K – 4155
2018
Q3 		$421K Buy
3,358
+1,299
+63% +$181K 0.03% 577
2018
Q2 		$275K Buy
2,059
+577
+39% +$73.5K 0.02% 911
2018
Q1 		$172K Buy
1,482
+1,284
+648% +$152K 0.01% 950
2017
Q4 		$22K Sell
198
-3,485
-95% -$405K ﹤0.01% 1986
2017
Q3 		$392K Buy
+3,683
New +$374K 0.03% 347
2017
Q2 		– Sell
-188
Closed -$17K – 3171
2017
Q1 		$17K Sell
188
-6
-3% -$532 ﹤0.01% 1396
2016
Q4 		$16K Sell
194
-284
-59% -$22.8K ﹤0.01% 2334
2016
Q3 		$38K Sell
478
-1,767
-79% -$131K ﹤0.01% 1286
2016
Q2 		$154K Buy
+2,245
New +$147K 0.01% 835
2016
Q1 		– Sell
-390
Closed -$25K – 4625
2015
Q4 		$25K Sell
390
-258
-40% -$16K ﹤0.01% 1065
2015
Q3 		$33K Buy
648
+110
+20% +$5.45K ﹤0.01% 1318
2015
Q2 		$27K Sell
538
-601
-53% -$31.8K ﹤0.01% 1842
2015
Q1 		$60K Buy
+1,139
New +$57.4K 0.01% 1323
2014
Q4 		– Sell
-417
Closed -$18K – 4426
2014
Q3 		$18K Buy
417
+387
+1,290% +$17K ﹤0.01% 2384
2014
Q2 		$1K Buy
+30
New +$1.16K ﹤0.01% 3700
2014
Q1 		– Sell
-622
Closed -$22K – 4735
2013
Q4 		$22K Buy
622
+63
+11% +$2.01K ﹤0.01% 2223
2013
Q3 		$17K Sell
559
-2,745
-83% -$77.1K ﹤0.01% 2824
2013
Q2 		$80K Buy
+3,304
New +$78.4K 0.01% 624

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

Tower Research Capital (TRC)'s MPWR Position: Q1 2026 in Review

Tower Research Capital (TRC) reduced its Monolithic Power Systems (MPWR) stake by 62% in Q1 2026, selling an estimated $6.35M and leaving 3,614 shares worth $3.95M. The position accounts for 0.1% of the portfolio, ranked #194.

Tower Research Capital (TRC) first reported a position in MPWR in Q2 2013 and has held it in 47 quarters since. The position peaked at $11.2M in Q1 2022. 1,115 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Tower Research Capital (TRC) held 3,614 shares of Monolithic Power Systems worth $3.95M as of Q1 2026.
  • Tower Research Capital (TRC) sold 5,816 Monolithic Power Systems shares in Q1 2026, an estimated $6.35M.
  • Monolithic Power Systems made up 0.1% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #194 holding.
  • Tower Research Capital (TRC) first reported a position in Monolithic Power Systems in Q2 2013 and has held it in 47 quarters since.
  • Tower Research Capital (TRC)'s Monolithic Power Systems position peaked at $11.2M in Q1 2022.
  • 1,115 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.