Western Digital Corporation
MX ˙ BMV ˙ US9581021055
SecurityMX:WDC / Western Digital Corporation
InstitutionProfund Advisors Llc
Latest Disclosed Ownership25,825 shares
Latest Disclosed Value $ 6,985,404
Profund Advisors Llc reports 19.57% decrease in ownership of WDC / Western Digital Corporation

On April 24, 2026 - Profund Advisors Llc filed a 13F-HR form disclosing ownership of 25,825 shares of Western Digital Corporation (MX:WDC) valued at $6,985,404 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 32,109 shares of Western Digital Corporation. This represents a change in shares of -19.57% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F WESTERN DIGITAL COM 958102105 25,825 -6,284 -19.57 6,985 26.29 0.2565
2026-02-06 2025-12-31 13F WESTERN DIGITAL COM 958102105 32,109 26,187 442.20 5,531 679.01 0.1681
2025-11-06 2025-09-30 13F WESTERN DIGITAL COM 958102105 5,922 582 10.90 711 108.21 0.0231
2025-08-07 2025-06-30 13F WESTERN DIGITAL COM 958102105 5,340 -431 -7.47 342 46.35 0.0123
2025-05-08 2025-03-31 13F WESTERN DIGITAL COM 958102105 5,771 -361 -5.89 233 -36.16 0.0101
2025-02-14 2024-12-31 13F WESTERN DIGITAL COM 958102105 6,132 -1,138 -15.65 366 -26.41 0.0133
2024-11-14 2024-09-30 13F WESTERN DIGITAL COM 958102105 7,270 666 10.08 496 -0.80 0.0188
2024-08-13 2024-06-30 13F WESTERN DIGITAL COM 958102105 6,604 456 7.42 500 19.33 0.0186
2024-05-08 2024-03-31 13F WESTERN DIGITAL COM 958102105 6,148 -828 -11.87 420 14.79 0.0163
2024-02-14 2023-12-31 13F WESTERN DIGITAL COM 958102105 6,976 1,661 31.25 365 50.83 0.0157
2023-11-13 2023-09-30 13F WESTERN DIGITAL COM 958102105 5,315 -651 -10.91 243 7.08 0.0134
2023-08-10 2023-06-30 13F WESTERN DIGITAL COM 958102105 5,966 5,966 226 0.0121
2022-07-30 2022-06-30 13F WESTERN DIGITAL COM 958102105 0 -4,624 -100.00 0 -100.00
2022-05-10 2022-03-31 13F WESTERN DIGITAL COM 958102105 4,624 -553 -10.68 230 -31.95 0.0097
2022-02-08 2021-12-31 13F WESTERN DIGITAL COM 958102105 5,177 205 4.12 338 20.28 0.0111
2021-11-12 2021-09-30 13F WESTERN DIGITAL COM 958102105 4,972 483 10.76 281 -12.19 0.0095
2021-08-12 2021-06-30 13F WESTERN DIGITAL COM 958102105 4,489 -324 -6.73 320 -0.31 0.0107
2021-05-14 2021-03-31 13F WESTERN DIGITAL COM 958102105 4,813 -79 -1.61 321 18.45 0.0123
2021-02-09 2020-12-31 13F WESTERN DIGITAL COM 958102105 4,892 -17,686 -78.33 271 -67.15 0.0118
2020-11-13 2020-09-30 13F WESTERN DIGITAL COM 958102105 22,578 407 1.84 825 -15.73 0.0425
2020-08-03 2020-06-30 13F WESTERN DIGITAL COM 958102105 22,171 1,592 7.74 979 14.37 0.0545
2020-05-15 2020-03-31 13F WESTERN DIGITAL COM 958102105 20,579 -6,653 -24.43 856 -50.46 0.0643
2020-02-18 2019-12-31 13F WESTERN DIGITAL COM 958102105 27,232 3,661 15.53 1,728 22.90 0.0752
2019-11-12 2019-09-30 13F WESTERN DIGITAL COM 958102105 23,571 -1,407 -5.63 1,406 18.35 0.0711
2019-08-13 2019-06-30 13F WESTERN DIGITAL COM 958102105 24,978 4,214 20.29 1,188 19.04 0.0563
2019-05-15 2019-03-31 13F WESTERN DIGITAL COM 958102105 20,764 628 3.12 998 34.14 0.0480
2019-02-14 2018-12-31 13F WESTERN DIGITAL COM 958102105 20,136 -6,226 -23.62 744 -51.78 0.0460
2018-11-13 2018-09-30 13F WESTERN DIGITAL COM 958102105 26,362 414 1.60 1,543 -23.20 0.0585
2018-08-13 2018-06-30 13F WESTERN DIGITAL COM 958102105 25,948 -87 -0.33 2,009 -16.36 0.0803
2018-05-14 2018-03-31 13F WESTERN DIGITAL COM 958102105 26,035 1,883 7.80 2,402 25.04 0.0956
2018-02-14 2017-12-31 13F WESTERN DIGITAL COM 958102105 24,152 -902 -3.60 1,921 -11.27 0.0741
2017-11-13 2017-09-30 13F WESTERN DIGITAL COM 958102105 25,054 452 1.84 2,165 -0.69 0.0901
2017-08-11 2017-06-30 13F WESTERN DIGITAL COM 958102105 24,602 1,554 6.74 2,180 14.62 0.0988
2017-04-25 2017-03-31 13F WESTERN DIGITAL COM 958102105 23,048 1,255 5.76 1,902 28.43 0.0850
2017-02-13 2016-12-31 13F WESTERN DIGITAL COM 958102105 21,793 -751 -3.33 1,481 12.37 0.0682
2016-11-10 2016-09-30 13F WESTERN DIGITAL COM 958102105 22,544 3,916 21.02 1,318 49.77 0.0627
2016-08-12 2016-06-30 13F WESTERN DIGITAL COM 958102105 18,628 2,310 14.16 880 14.14 0.0428
2016-05-06 2016-03-31 13F WESTERN DIGITAL COM 958102105 16,318 -1,366 -7.72 771 -27.40 0.0400
2016-02-05 2015-12-31 13F WESTERN DIGITAL COM 958102105 17,684 1,906 12.08 1,062 -15.24 0.0504
2015-11-06 2015-09-30 13F WESTERN DIGITAL COM 958102105 15,778 -3,475 -18.05 1,253 -17.02 0.0714
2015-08-11 2015-06-30 13F WESTERN DIGITAL COM 958102105 19,253 -691 -3.46 1,510 -16.80 0.0625
2015-05-08 2015-03-31 13F WESTERN DIGITAL COM 958102105 19,944 19,944 0.00 1,815 0.0706
2015-01-30 2014-12-31 13F WESTERN DIGITAL COM 958102105 0 -20,473 -100.00 0 -100.00
2014-11-06 2014-09-30 13F WESTERN DIGITAL COM 958102105 20,473 2,731 15.39 1,992 21.61 0.0933
2014-08-08 2014-06-30 13F WESTERN DIGITAL COM 958102105 17,742 -1,441 -7.51 1,638 -6.98 0.0718
2014-05-07 2014-03-31 13F WESTERN DIGITAL COM 958102105 19,183 389 2.07 1,761 11.67 0.0800
2014-02-04 2013-12-31 13F WESTERN DIGITAL COM 958102105 18,794 1,845 10.89 1,577 46.70 0.0707
2013-11-07 2013-09-30 13F WESTERN DIGITAL COM 958102105 16,949 2,259 15.38 1,075 17.87 0.0571
2013-07-25 2013-06-30 13F WESTERN DIGITAL COM 958102105 14,690 14,690 912 0.0644
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.