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
$1.56M Sell
5,785
-335,977
-98% -$87.7M ﹤0.01% 2041
2025
Q4
$58.9M Buy
+341,762
New +$51.8M 0.03% 248
2025
Q2
Sell
-145,433
Closed -$6.92M 9853
2025
Q1
$5.88M Buy
145,433
+42,943
+42% +$2.04M ﹤0.01% 1201
2024
Q4
$4.62M Buy
102,490
+62,612
+157% +$3.15M ﹤0.01% 1532
2024
Q3
$2.06M Buy
39,878
+2,285
+6% +$115K ﹤0.01% 2255
2024
Q2
$2.15M Buy
+37,593
New +$2.09M ﹤0.01% 2127
2023
Q2
Sell
-115,419
Closed -$3.21M 10068
2023
Q1
$3.29M Buy
+115,419
New +$3.39M ﹤0.01% 1562
2022
Q2
Sell
-268,573
Closed -$10.8M 11226
2022
Q1
$10.1M Buy
268,573
+141,072
+111% +$5.79M 0.01% 837
2021
Q4
$6.28M Buy
127,501
+127,369
+96,492% +$5.53M 0.01% 1063
2021
Q3
$7K Hold
132
﹤0.01% 9147
2021
Q2
$7K Sell
132
-62,767
-100% -$3.39M ﹤0.01% 9314
2021
Q1
$3.17M Sell
62,899
-22,633
-26% -$1.06M 0.01% 1180
2020
Q4
$3.58M Sell
85,532
-84,562
-50% -$2.81M ﹤0.01% 1242
2020
Q3
$4.7M Buy
170,094
+137,334
+419% +$4.08M 0.01% 908
2020
Q2
$1.09M Sell
32,760
-16,135
-33% -$523K ﹤0.01% 2070
2020
Q1
$1.54M Sell
48,895
-55,753
-53% -$2.47M ﹤0.01% 1501
2019
Q4
$5.02M Buy
104,648
+88,890
+564% +$3.71M 0.01% 797
2019
Q3
$710K Sell
15,758
-87,993
-85% -$3.76M ﹤0.01% 2275
2019
Q2
$3.73M Buy
103,751
+57,487
+124% +$1.97M 0.01% 860
2019
Q1
$1.68M Sell
46,264
-15,062
-25% -$516K ﹤0.01% 1532
2018
Q4
$1.71M Sell
61,326
-5,774
-9% -$205K 0.01% 1198
2018
Q3
$2.97M Sell
67,100
-6,746
-9% -$342K 0.01% 937
2018
Q2
$4.32M Buy
+73,846
New +$4.7M 0.02% 632
2017
Q4
Sell
-150,315
Closed -$9.68M 6780
2017
Q3
$9.82M Sell
150,315
-88,401
-37% -$5.87M 0.4% 41
2017
Q2
$16M Buy
238,716
+120,132
+101% +$7.98M 0.69% 18
2017
Q1
$7.4M Buy
118,584
+79,180
+201% +$4.55M 0.32% 43
2016
Q4
$2.02M Buy
39,404
+17,344
+79% +$800K 0.12% 142
2016
Q3
$974K Sell
22,060
-93,902
-81% -$3.54M 0.07% 268
2016
Q2
$4.14M Buy
+115,962
New +$3.82M 0.28% 59
2015
Q4
Sell
-2,073
Closed -$106K 6219
2015
Q3
$124K Sell
2,073
-40,808
-95% -$2.45M 0.01% 1254
2015
Q2
$2.54M Buy
42,881
+5,054
+13% +$362K 0.21% 81
2015
Q1
$2.6M Buy
+37,827
New +$2.96M 0.3% 64

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. 1,408 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.
  • 1,408 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.