Wellington Management Group’s Silicon Motion SIMO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$34.2M Sell
304,286
-392,713
-56% -$47.7M 0.01% 844
2025
Q4
$64.6M Buy
696,999
+1,043
+0.1% +$95.7K 0.01% 662
2025
Q3
$66M Sell
695,956
-154,044
-18% -$12.2M 0.01% 657
2025
Q2
$63.9M Buy
850,000
+154,446
+22% +$8.77M 0.01% 634
2025
Q1
$35.2M Sell
695,554
-101,638
-13% -$5.5M 0.01% 790
2024
Q4
$43.1M Buy
797,192
+228,333
+40% +$12.8M 0.01% 747
2024
Q3
$34.6M Sell
568,859
-200,352
-26% -$13.2M 0.01% 809
2024
Q2
$62.3M Sell
769,211
-368,611
-32% -$28.8M 0.01% 647
2024
Q1
$87.5M Buy
1,137,822
+318,286
+39% +$21.7M 0.02% 588
2023
Q4
$50.2M Buy
819,536
+247
+0% +$14.1K 0.01% 708
2023
Q3
$42M Buy
819,289
+758,640
+1,251% +$43.2M 0.01% 735
2023
Q2
$4.36M Sell
60,649
-11,373
-16% -$727K ﹤0.01% 1309
2023
Q1
$4.72M Sell
72,022
-1,176
-2% -$77.2K ﹤0.01% 1299
2022
Q4
$4.76M Sell
73,198
-4,941
-6% -$303K ﹤0.01% 1284
2022
Q3
$5.09M Sell
78,139
-6,268
-7% -$491K ﹤0.01% 1278
2022
Q2
$7.06M Sell
84,407
-21,806
-21% -$1.84M ﹤0.01% 1206
2022
Q1
$7.1M Sell
106,213
-791,026
-88% -$61.6M ﹤0.01% 1288
2021
Q4
$85.3M Sell
897,239
-30,195
-3% -$2.28M 0.01% 672
2021
Q3
$64M Sell
927,434
-30,377
-3% -$2.14M 0.01% 745
2021
Q2
$61.4M Buy
957,811
+93,333
+11% +$6.14M 0.01% 760
2021
Q1
$51.3M Sell
864,478
-71,708
-8% -$4.08M 0.01% 787
2020
Q4
$45.1M Buy
936,186
+116,598
+14% +$4.76M 0.01% 791
2020
Q3
$31M Buy
819,588
+20,962
+3% +$840K 0.01% 837
2020
Q2
$38.9M Sell
798,626
-52,369
-6% -$2.32M 0.01% 761
2020
Q1
$31.2M Sell
850,995
-520,105
-38% -$22.5M 0.01% 761
2019
Q4
$69.5M Sell
1,371,100
-521,063
-28% -$22.4M 0.01% 674
2019
Q3
$66.9M Sell
1,892,163
-71,633
-4% -$2.6M 0.02% 643
2019
Q2
$87.2M Sell
1,963,796
-137,154
-7% -$5.51M 0.02% 600
2019
Q1
$83.3M Buy
2,100,950
+80,525
+4% +$3.14M 0.02% 594
2018
Q4
$69.7M Sell
2,020,425
-545,687
-21% -$21.3M 0.02% 614
2018
Q3
$138M Sell
2,566,112
-732,629
-22% -$40.6M 0.03% 485
2018
Q2
$174M Sell
3,298,741
-162,464
-5% -$7.97M 0.04% 409
2018
Q1
$167M Buy
3,461,205
+188,566
+6% +$9.05M 0.04% 418
2017
Q4
$173M Sell
3,272,639
-199,661
-6% -$10.1M 0.04% 400
2017
Q3
$167M Buy
3,472,300
+237,975
+7% +$10.5M 0.04% 395
2017
Q2
$156M Buy
3,234,325
+744,487
+30% +$36.8M 0.04% 380
2017
Q1
$116M Buy
2,489,838
+194,518
+8% +$8.27M 0.03% 454
2016
Q4
$97.5M Buy
2,295,320
+78,627
+4% +$3.59M 0.02% 513
2016
Q3
$115M Sell
2,216,693
-818,316
-27% -$42.7M 0.03% 451
2016
Q2
$145M Buy
3,035,009
+5,117
+0.2% +$215K 0.04% 381
2016
Q1
$118M Buy
3,029,892
+1,501,544
+98% +$48.5M 0.03% 430
2015
Q4
$47.9M Buy
1,528,348
+938,614
+159% +$29.4M 0.01% 680
2015
Q3
$16.1M Buy
589,734
+570,892
+3,030% +$15.3M ﹤0.01% 1038
2015
Q2
$652K Buy
+18,842
New +$614K ﹤0.01% 1927

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