Western Digital Corporation
US ˙ NasdaqGS ˙ US9581021055

SecurityWDC / Western Digital Corporation
InstitutionAllworth Financial LP
Latest Disclosed Ownership5,916 shares
Latest Disclosed Value $ 1,600,308
Allworth Financial LP reports 31.76% increase in ownership of WDC / Western Digital Corporation

On May 14, 2026 - Allworth Financial LP filed a 13F-HR form disclosing ownership of 5,916 shares of Western Digital Corporation (US:WDC) valued at $1,600,219 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 4,490 shares of Western Digital Corporation. This represents a change in shares of 31.76% during the quarter. The current value of the position is $3,514,755 USD.

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)
2026-05-14 2026-03-31 13F WESTERN DIGITAL COM 958102105 5,916 1,426 31.76 1,600 106.99 0.0065
2026-02-05 2025-12-31 13F WESTERN DIGITAL COM 958102105 4,490 1,397 45.17 773 108.36 0.0032
2025-12-02 2025-09-30 13F WESTERN DIGITAL COM 958102105 3,093 -677 -17.96 371 53.94 0.0016
2025-08-07 2025-06-30 13F WESTERN DIGITAL COM 958102105 3,770 2,815 294.76 241 534.21 0.0012
2025-04-30 2025-03-31 13F WESTERN DIGITAL COM 958102105 955 243 34.13 38 -20.83 0.0002
2025-01-30 2024-12-31 13F WESTERN DIGITAL COM 958102105 712 79 12.48 49 11.63 0.0003
2024-10-23 2024-09-30 13F WESTERN DIGITAL COM 958102105 633 6 0.96 43 0.00 0.0003
2024-07-24 2024-06-30 13F WESTERN DIGITAL COM 958102105 627 142 29.28 44 30.30 0.0003
2024-04-25 2024-03-31 13F WESTERN DIGITAL COM 958102105 485 35 7.78 33 43.48 0.0002
2024-01-24 2023-12-31 13F WESTERN DIGITAL COM 958102105 450 -238 -34.59 24 -25.81 0.0002
2023-10-31 2023-09-30 13F WESTERN DIGITAL COM 958102105 688 143 26.24 31 55.00 0.0003
2023-07-18 2023-06-30 13F WESTERN DIGITAL COM 958102105 545 11 2.06 21 0.00 0.0002
2023-04-18 2023-03-31 13F WESTERN DIGITAL COM 958102105 534 -12 -2.20 20 17.65 0.0002
2023-01-13 2022-12-31 13F WESTERN DIGITAL COM 958102105 546 -49 -8.24 17 -10.53 0.0002
2022-11-14 2022-09-30 13F/A-1 WESTERN DIGITAL COM 958102105 595 -319 -34.90 19 -53.66 0.0002
2022-10-18 2022-09-30 13F WESTERN DIGITAL COM 958102105 595 -319 19 0.0002
2022-07-13 2022-06-30 13F WESTERN DIGITAL COM 958102105 914 570 165.70 41 141.18 0.0006
2022-04-22 2022-03-31 13F WESTERN DIGITAL COM 958102105 344 98 39.84 17 6.25 0.0002
2022-01-21 2021-12-31 13F WESTERN DIGITAL COM 958102105 246 0 0.00 16 14.29 0.0002
2021-11-02 2021-09-30 13F WESTERN DIGITAL COM 958102105 246 0 0.00 14 -22.22 0.0002
2021-08-02 2021-06-30 13F WESTERN DIGITAL COM 958102105 246 -2 -0.81 18 5.88 0.0003
2021-04-29 2021-03-31 13F WESTERN DIGITAL COM 958102105 248 0 0.00 17 21.43 0.0003
2021-01-26 2020-12-31 13F WESTERN DIGITAL COM 958102105 248 0 0.00 14 55.56 0.0004
2020-11-03 2020-09-30 13F WESTERN DIGITAL COM 958102105 248 7 2.90 9 -18.18 0.0003
2020-07-24 2020-06-30 13F WESTERN DIGITAL COM 958102105 241 -256 -51.51 11 -47.62 0.0003
2020-04-17 2020-03-31 13F WESTERN DIGITAL COM 958102105 497 4 0.81 21 -32.26 0.0007
2020-01-16 2019-12-31 13F WESTERN DIGITAL COM 958102105 493 3 0.61 31 6.90 0.0011
2019-10-09 2019-09-30 13F WESTERN DIGITAL COM 958102105 490 2 0.41 29 26.09 0.0011
2019-07-25 2019-06-30 13F WESTERN DIGITAL COM 958102105 488 3 0.62 23 0.00 0.0009
2019-05-07 2019-03-31 13F WESTERN DIGITAL COM 958102105 485 162 50.15 23 91.67 0.0010
2019-02-11 2018-12-31 13F WESTERN DIGITAL COM 958102105 323 2 0.62 12 -36.84 0.0006
2018-10-29 2018-09-30 13F WESTERN DIGITAL COM 958102105 321 -54 -14.40 19 -34.48 0.0009
2018-08-08 2018-06-30 13F WESTERN DIGITAL COM 958102105 375 55 17.19 29 -3.33 0.0014
2018-05-01 2018-03-31 13F WESTERN DIGITAL COM 958102105 320 0 0.00 30 20.00 0.0023
2018-02-21 2017-12-31 13F WESTERN DIGITAL COM 958102105 320 -249 -43.76 25 -48.98 0.0019
2017-10-12 2017-09-30 13F WESTERN DIGITAL COM 958102105 569 25 4.60 49 2.08 0.0040
2017-08-07 2017-06-30 13F WESTERN DIGITAL COM 958102105 544 101 22.80 48 29.73 0.0042
2017-05-09 2017-03-31 13F WESTERN DIGITAL COM 958102105 443 2 0.45 37 23.33 0.0035
2017-02-02 2016-12-31 13F WESTERN DIGITAL COM 958102105 441 2 0.46 30 15.38 0.0030
2017-02-07 2016-09-30 13F WESTERN DIGITAL COM 958102105 439 2 0.46 26 23.81 0.0027
2016-08-22 2016-06-30 13F WESTERN DIGITAL COM 958102105 437 257 142.78 21 133.33 0.0024
2016-05-16 2016-03-31 13F WESTERN DIGITAL COM 958102105 180 0 0.00 9 -18.18 0.0011
2016-02-16 2015-12-31 13F WESTERN DIGITAL COM 958102105 180 0 0.00 11 -21.43 0.0020
2015-10-30 2015-09-30 13F WESTERN DIGITAL COM 958102105 180 0 0.00 14 0.00 0.0050
2015-08-06 2015-06-30 13F WESTERN DIGITAL COM 958102105 180 0 0.00 14 -12.50 0.0050
2015-06-01 2015-03-31 13F WESTERN DIGITAL COM 958102105 180 180 16 0.0059
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.