Simplex Trading’s Western Digital WDC Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$71.8M Sell
272,000
-265,100
-49% -$69.2M 0.05% 161
2025
Q4
$67.9M Sell
537,100
-262,600
-33% -$39.8M 0.04% 217
2025
Q3
$78.9M Buy
799,700
+324,800
+68% +$26.5M 0.04% 243
2025
Q2
$21.3M Sell
474,900
-175,800
-27% -$8.37M 0.01% 538
2025
Q1
$15.7M Sell
650,700
-103,410
-14% -$4.91M 0.01% 637
2024
Q4
$34M Sell
754,110
-81,497
-10% -$4.1M 0.02% 421
2024
Q3
$43.1M Sell
835,607
-119,996
-13% -$6.06M 0.03% 340
2024
Q2
$54.7M Buy
955,603
+158,892
+20% +$8.81M 0.03% 283
2024
Q1
$41.1M Sell
796,711
-45,379
-5% -$1.99M 0.02% 391
2023
Q4
$33.3M Buy
842,090
+152,410
+22% +$5.33M 0.02% 489
2023
Q3
$23.8M Sell
689,680
-186,411
-21% -$5.88M 0.02% 518
2023
Q2
$25.1M Buy
876,091
+70,913
+9% +$1.97M 0.02% 490
2023
Q1
$22.9M Buy
805,178
+39,955
+5% +$1.17M 0.02% 533
2022
Q4
$18.2M Buy
765,223
+296,749
+63% +$7.83M 0.02% 595
2022
Q3
$11.5M Buy
468,474
+41,410
+10% +$1.37M 0.01% 738
2022
Q2
$14.5M Sell
427,064
-261,558
-38% -$10.5M 0.02% 639
2022
Q1
$25.8M Buy
688,622
+377,982
+122% +$15.5M 0.02% 450
2021
Q4
$15.3M Sell
310,640
-287,488
-48% -$12.5M 0.02% 605
2021
Q3
$32M Buy
598,128
+63,239
+12% +$3M 0.03% 335
2021
Q2
$28.8M Buy
534,889
+530,810
+13,013% +$28.7M 0.03% 347
2021
Q1
$20.6M Sell
4,079
-214
-5% -$10K 0.04% 276
2020
Q4
$18M Sell
4,293
-2,281
-35% -$75.7K 0.02% 381
2020
Q3
$18.2M Buy
6,574
+2,780
+73% +$82.6K 0.02% 352
2020
Q2
$12.7M Sell
3,794
-561
-13% -$18.2K 0.02% 427
2020
Q1
$13.7M Sell
4,355
-151
-3% -$6.69K 0.02% 319
2019
Q4
$21.6M Sell
4,506
-3,306
-42% -$138K 0.05% 258
2019
Q3
$35.2M Sell
7,812
-606
-7% -$25.9K 0.1% 132
2019
Q2
$30.3M Buy
8,418
+1,671
+25% +$57.3K 0.08% 151
2019
Q1
$24.5M Buy
6,747
+3,855
+133% +$132K 0.07% 176
2018
Q4
$8.08M Sell
2,892
-1,241
-30% -$44K 0.02% 401
2018
Q3
$18.3M Buy
4,133
+224
+6% +$11.3K 0.06% 218
2018
Q2
$22.9M Buy
3,909
+353
+10% +$22.5K 0.09% 153
2018
Q1
$614K Sell
3,556
-35
-1% -$2.36K 0.03% 617
2017
Q4
$871K Sell
3,591
-1,119
-24% -$72.1K 0.04% 446
2017
Q3
$817K Sell
4,710
-3,146
-40% -$209K 0.03% 446
2017
Q2
$1.16M Buy
7,856
+3,775
+93% +$251K 0.05% 315
2017
Q1
$199K Sell
4,081
-773
-16% -$44.4K 0.01% 1206
2016
Q4
$208K Sell
4,854
-734
-13% -$33.8K 0.01% 1030
2016
Q3
$622K Sell
5,588
-928
-14% -$35K 0.04% 427
2016
Q2
$1.06M Buy
6,516
+5,332
+450% +$176K 0.07% 255
2016
Q1
$660K Buy
1,184
+130
+12% +$4.65K 0.05% 336
2015
Q4
$1.11M Buy
1,054
+316
+43% +$16.1K 0.09% 192
2015
Q3
$301K Buy
738
+83
+13% +$4.99K 0.02% 690
2015
Q2
$737K Buy
655
+56
+9% +$4.01K 0.06% 281
2015
Q1
$213K Buy
599
+434
+263% +$33.9K 0.02% 696
2014
Q4
$6K Buy
+165
New +$12.5K ﹤0.01% 2990

Other funds holding WDC

Simplex Trading's WDC Position: Q1 2026 in Review

Simplex Trading reduced its Western Digital (WDC) stake by 98% in Q1 2026, selling an estimated $87.7M and leaving 5,785 shares worth $1.56M. The position accounts for ﹤0.01% of the portfolio, ranked #2041.

Simplex Trading first reported a position in WDC in Q1 2015 and has held it in 32 quarters since. The position peaked at $58.9M in Q4 2025. 1,406 funds tracked by Wall St. Rank hold WDC as of Q1 2026.

  • Simplex Trading held 5,785 shares of Western Digital worth $1.56M as of Q1 2026.
  • Simplex Trading sold 335,977 Western Digital shares in Q1 2026, an estimated $87.7M.
  • Western Digital made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #2041 holding.
  • Simplex Trading first reported a position in Western Digital in Q1 2015 and has held it in 32 quarters since.
  • Simplex Trading's Western Digital position peaked at $58.9M in Q4 2025.
  • 1,406 funds tracked by Wall St. Rank held Western Digital as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.