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
$69.2M Sell
255,200
-2,200
-0.9% -$574K 0.05% 170
2025
Q4
$44.3M Sell
257,400
-430,400
-63% -$65.3M 0.02% 317
2025
Q3
$63.2M Buy
687,800
+197,700
+40% +$16.2M 0.03% 292
2025
Q2
$26.2M Sell
490,100
-490,900
-50% -$23.4M 0.02% 467
2025
Q1
$27.1M Sell
981,000
-105,712
-10% -$5.01M 0.02% 424
2024
Q4
$49M Sell
1,086,712
-132,829
-11% -$6.68M 0.03% 313
2024
Q3
$62.9M Sell
1,219,541
-153,468
-11% -$7.75M 0.04% 258
2024
Q2
$78.6M Buy
1,373,009
+275,448
+25% +$15.3M 0.05% 205
2024
Q1
$56.6M Buy
1,097,561
+351,918
+47% +$15.4M 0.03% 310
2023
Q4
$29.5M Buy
745,643
+233,510
+46% +$8.17M 0.02% 540
2023
Q3
$17.7M Buy
512,133
+50,803
+11% +$1.6M 0.01% 649
2023
Q2
$13.2M Sell
461,330
-408,807
-47% -$11.4M 0.01% 744
2023
Q1
$24.8M Buy
870,137
+46,702
+6% +$1.37M 0.02% 507
2022
Q4
$19.6M Buy
823,435
+251,105
+44% +$6.62M 0.02% 564
2022
Q3
$14.1M Sell
572,330
-713,626
-55% -$23.7M 0.02% 645
2022
Q2
$43.6M Buy
1,285,956
+836,930
+186% +$33.6M 0.05% 275
2022
Q1
$16.9M Buy
449,026
+171,196
+62% +$7.03M 0.02% 602
2021
Q4
$13.7M Sell
277,830
-824,494
-75% -$35.8M 0.01% 654
2021
Q3
$59M Buy
1,102,324
+41,807
+4% +$1.99M 0.06% 218
2021
Q2
$57M Buy
1,060,517
+1,054,216
+16,731% +$57M 0.06% 222
2021
Q1
$31.8M Buy
6,301
+1,160
+23% +$54.2K 0.06% 202
2020
Q4
$21.5M Sell
5,141
-24
-0.5% -$797 0.03% 336
2020
Q3
$14.3M Sell
5,165
-935
-15% -$27.8K 0.02% 395
2020
Q2
$20.4M Buy
6,100
+2,212
+57% +$71.7K 0.03% 301
2020
Q1
$12.2M Sell
3,888
-2,776
-42% -$123K 0.02% 346
2019
Q4
$32M Buy
6,664
+589
+10% +$24.6K 0.07% 182
2019
Q3
$27.4M Sell
6,075
-1,710
-22% -$73K 0.08% 183
2019
Q2
$28M Buy
7,785
+1,753
+29% +$60.1K 0.08% 171
2019
Q1
$21.9M Buy
6,032
+1,858
+45% +$63.6K 0.06% 199
2018
Q4
$11.7M Buy
4,174
+1,461
+54% +$51.8K 0.03% 305
2018
Q3
$12M Buy
2,713
+18
+0.7% +$912 0.04% 307
2018
Q2
$15.8M Sell
2,695
-172
-6% -$10.9K 0.06% 223
2018
Q1
$1.35M Sell
2,867
-3,342
-54% -$225K 0.06% 282
2017
Q4
$790K Buy
6,209
+3,062
+97% +$197K 0.03% 496
2017
Q3
$1.31M Sell
3,147
-347
-10% -$23K 0.05% 296
2017
Q2
$1.5M Sell
3,494
-58
-2% -$3.85K 0.07% 241
2017
Q1
$1.28M Buy
3,552
+1,845
+108% +$106K 0.06% 308
2016
Q4
$565K Sell
1,707
-1,984
-54% -$91.5K 0.03% 487
2016
Q3
$1.01M Buy
3,691
+513
+16% +$19.3K 0.07% 259
2016
Q2
$829K Buy
3,178
+1,928
+154% +$63.5K 0.06% 339
2016
Q1
$238K Buy
1,250
+465
+59% +$16.6K 0.02% 778
2015
Q4
$70K Sell
785
-279
-26% -$14.2K 0.01% 1645
2015
Q3
$333K Buy
1,064
+454
+74% +$27.3K 0.02% 619
2015
Q2
$24K Buy
610
+418
+218% +$29.9K ﹤0.01% 2312
2015
Q1
$42K Buy
192
+40
+26% +$3.13K ﹤0.01% 1706
2014
Q4
$115K Buy
+152
New +$11.5K 0.01% 861

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.