Western Digital Corporation
MX ˙ BMV ˙ US9581021055
SecurityMX:WDC / Western Digital Corporation
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership9,278 shares
Latest Disclosed Value $ 2,509,493
Private Advisor Group, LLC reports 164.10% increase in ownership of WDC / Western Digital Corporation

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 9,278 shares of Western Digital Corporation (MX:WDC) valued at $2,509,493 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,513 shares of Western Digital Corporation. This represents a change in shares of 164.10% 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 9,278 5,765 164.10 2,509 314.71 0.0111
2026-02-17 2025-12-31 13F WESTERN DIGITAL COM 958102105 3,513 3,513 605 0.0028
2025-02-03 2024-12-31 13F WESTERN DIGITAL COM 958102105 0 -4,317 -100.00 0 -100.00
2024-10-22 2024-09-30 13F WESTERN DIGITAL COM 958102105 4,317 936 27.68 295 14.84 0.0018
2024-08-05 2024-06-30 13F WESTERN DIGITAL COM 958102105 3,381 353 11.66 256 24.27 0.0017
2024-04-30 2024-03-31 13F WESTERN DIGITAL COM 958102105 3,028 3,028 207 0.0015
2022-10-14 2022-09-30 13F WESTERN DIGITAL COM 958102105 0 -6,854 -100.00 0 -100.00
2022-07-13 2022-06-30 13F WESTERN DIGITAL COM 958102105 6,854 6,854 308 0.0027
2021-10-14 2021-09-30 13F WESTERN DIGITAL COM 958102105 0 -13,475 -100.00 0 -100.00
2021-08-12 2021-06-30 13F WESTERN DIGITAL COM 958102105 13,475 13,475 959 0.0084
2020-10-30 2020-09-30 13F WESTERN DIGITAL COM 958102105 0 -5,251 -100.00 0 -100.00
2020-08-17 2020-06-30 13F WESTERN DIGITAL COM 958102105 5,251 5,251 232 0.0032
2020-05-12 2020-03-31 13F WESTERN DIGITAL COM 958102105 0 -5,145 -100.00 0 -100.00
2020-02-10 2019-12-31 13F WESTERN DIGITAL COM 958102105 5,145 -4,866 -48.61 327 -45.23 0.0051
2019-11-13 2019-09-30 13F WESTERN DIGITAL COM 958102105 10,011 -834 -7.69 597 15.70 0.0093
2019-08-14 2019-06-30 13F WESTERN DIGITAL COM 958102105 10,845 -1,370 -11.22 516 -12.10 0.0093
2019-05-13 2019-03-31 13F WESTERN DIGITAL COM 958102105 12,215 12,215 12.63 587 13.76 0.0116
2019-02-08 2018-12-31 13F WESTERN DIGITAL COM 958102105 0 -7,734 -100.00 0 -100.00
2018-11-01 2018-09-30 13F WESTERN DIGITAL COM 958102105 7,734 1,617 26.43 453 -5.03 0.0093
2018-08-09 2018-06-30 13F WESTERN DIGITAL COM 958102105 6,117 2,586 73.24 477 46.32 0.0078
2018-05-09 2018-03-31 13F WESTERN DIGITAL COM 958102105 3,531 -2,457 -41.03 326 -32.78 0.0128
2018-02-07 2017-12-31 13F WESTERN DIGITAL COM 958102105 5,988 -3,149 -34.46 485 -37.09 0.0205
2017-11-13 2017-09-30 13F WESTERN DIGITAL COM 958102105 9,137 -3,012 -24.79 771 -28.94 0.0191
2017-08-10 2017-06-30 13F WESTERN DIGITAL COM 958102105 12,149 5,221 75.36 1,085 89.35 0.0294
2017-05-10 2017-03-31 13F WESTERN DIGITAL COM 958102105 6,928 -1,350 -16.31 573 -3.05 0.0160
2017-02-09 2016-12-31 13F WESTERN DIGITAL COM 958102105 8,278 3,642 78.56 591 117.28 0.0194
2016-11-10 2016-09-30 13F WESTERN DIGITAL COM 958102105 4,636 54 1.18 272 30.14 0.0111
2016-08-09 2016-06-30 13F WESTERN DIGITAL COM 958102105 4,582 4,582 209 0.0084
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.