Lord, Abbett & Co’s Monolithic Power Systems MPWR Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$133M Buy
121,847
+111,472
+1,074% +$122M 0.43% 57
2025
Q4
$9.4M Sell
10,375
-13,125
-56% -$12.6M 0.03% 387
2025
Q3
$21.6M Buy
+23,500
New +$19.1M 0.06% 277
2024
Q4
Sell
-125,515
Closed -$116M 560
2024
Q3
$116M Sell
125,515
-91,766
-42% -$79.2M 0.37% 68
2024
Q2
$179M Buy
217,281
+53,735
+33% +$38.8M 0.58% 39
2024
Q1
$111M Sell
163,546
-2,529
-2% -$1.69M 0.36% 77
2023
Q4
$105M Buy
166,075
+63,136
+61% +$33M 0.37% 81
2023
Q3
$47.6M Sell
102,939
-53,923
-34% -$27.6M 0.18% 169
2023
Q2
$84.7M Sell
156,862
-74,774
-32% -$35.5M 0.29% 103
2023
Q1
$116M Buy
231,636
+45,668
+25% +$21M 0.42% 61
2022
Q4
$65.8M Sell
185,968
-1,689
-0.9% -$607K 0.24% 121
2022
Q3
$68.2M Sell
187,657
-147,575
-44% -$65.6M 0.25% 108
2022
Q2
$129M Buy
335,232
+2,591
+0.8% +$1.09M 0.46% 48
2022
Q1
$162M Sell
332,641
-2,004
-0.6% -$873K 0.43% 53
2021
Q4
$165M Buy
334,645
+807
+0.2% +$417K 0.38% 65
2021
Q3
$162M Sell
333,838
-20,667
-6% -$9.4M 0.39% 63
2021
Q2
$132M Buy
354,505
+53,169
+18% +$18.7M 0.32% 86
2021
Q1
$106M Sell
301,336
-155,921
-34% -$56.8M 0.27% 105
2020
Q4
$167M Sell
457,257
-19,793
-4% -$6.34M 0.44% 46
2020
Q3
$133M Sell
477,050
-76,663
-14% -$19.9M 0.43% 54
2020
Q2
$131M Sell
553,713
-18,443
-3% -$3.73M 0.46% 45
2020
Q1
$95.8M Buy
572,156
+197,077
+53% +$33.8M 0.42% 59
2019
Q4
$66.8M Buy
375,079
+11,895
+3% +$1.9M 0.22% 134
2019
Q3
$56.5M Buy
363,184
+234,919
+183% +$35.1M 0.19% 161
2019
Q2
$17.4M Sell
128,265
-63,264
-33% -$8.6M 0.06% 450
2019
Q1
$25.9M Sell
191,529
-28,968
-13% -$3.8M 0.09% 359
2018
Q4
$25.6M Sell
220,497
-22,473
-9% -$2.69M 0.09% 329
2018
Q3
$30.5M Sell
242,970
-83,543
-26% -$11.6M 0.08% 380
2018
Q2
$43.6M Sell
326,513
-13,705
-4% -$1.75M 0.13% 252
2018
Q1
$39.4M Sell
340,218
-27,816
-8% -$3.3M 0.12% 276
2017
Q4
$41.4M Sell
368,034
-33,197
-8% -$3.85M 0.12% 279
2017
Q3
$42.8M Sell
401,231
-30,994
-7% -$3.15M 0.12% 263
2017
Q2
$41.7M Sell
432,225
-20,543
-5% -$1.96M 0.12% 257
2017
Q1
$41.7M Sell
452,768
-45,538
-9% -$4.03M 0.12% 253
2016
Q4
$40.8M Buy
498,306
+64,301
+15% +$5.16M 0.12% 242
2016
Q3
$34.9M Sell
434,005
-31,891
-7% -$2.36M 0.11% 304
2016
Q2
$31.8M Buy
465,896
+879
+0.2% +$57.6K 0.1% 318
2016
Q1
$29.6M Buy
465,017
+136,594
+42% +$8.14M 0.09% 325
2015
Q4
$20.9M Buy
+328,423
New +$20.4M 0.06% 415
2015
Q2
Sell
-471,363
Closed -$24.8M 960
2015
Q1
$24.8M Buy
+471,363
New +$23.8M 0.06% 427
2014
Q4
Sell
-117,639
Closed -$5.18M 957
2014
Q3
$5.18M Sell
117,639
-35,320
-23% -$1.55M 0.01% 742
2014
Q2
$6.48M Buy
152,959
+480
+0.3% +$18.6K 0.01% 747
2014
Q1
$5.91M Sell
152,479
-54,607
-26% -$1.93M 0.01% 767
2013
Q4
$7.18M Buy
207,086
+12,452
+6% +$398K 0.02% 743
2013
Q3
$5.89M Buy
+194,634
New +$5.47M 0.01% 757

Other funds holding MPWR

Lord, Abbett & Co's MPWR Position: Q1 2026 in Review

Lord, Abbett & Co increased its Monolithic Power Systems (MPWR) stake by 1,074% in Q1 2026, buying an estimated $122M and bringing the position to 121,847 shares worth $133M. The position accounts for 0.43% of the portfolio, ranked #57.

Lord, Abbett & Co first reported a position in MPWR in Q3 2013 and has held it in 45 quarters since. The position peaked at $179M in Q2 2024. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

  • Lord, Abbett & Co held 121,847 shares of Monolithic Power Systems worth $133M as of Q1 2026.
  • Lord, Abbett & Co bought 111,472 Monolithic Power Systems shares in Q1 2026, an estimated $122M.
  • Monolithic Power Systems made up 0.43% of Lord, Abbett & Co's portfolio in Q1 2026, its #57 holding.
  • Lord, Abbett & Co first reported a position in Monolithic Power Systems in Q3 2013 and has held it in 45 quarters since.
  • Lord, Abbett & Co's Monolithic Power Systems position peaked at $179M in Q2 2024.
  • 1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Lord, Abbett & Co's 13F filing for Q1 2026, filed 14 May 2026.