Western Digital Corporation
CH ˙ BRSE ˙ US9581021055
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityCH:12355 / Western Digital Corporation
InstitutionSavant Capital, LLC
Latest Disclosed Ownership8,040 shares
Latest Disclosed Value $ 2,174,790
Savant Capital, LLC reports 17.37% increase in ownership of 12355 / Western Digital Corporation

On May 4, 2026 - Savant Capital, LLC filed a 13F-HR form disclosing ownership of 8,040 shares of Western Digital Corporation (CH:12355) valued at $2,174,790 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 6,850 shares of Western Digital Corporation. This represents a change in shares of 17.37% 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)
2026-05-04 2026-03-31 13F WESTERN DIGITAL COM 958102105 8,040 1,190 17.37 2,175 84.24 0.0105
2026-02-10 2025-12-31 13F WESTERN DIGITAL COM 958102105 6,850 496 7.81 1,180 54.86 0.0067
2026-03-04 2025-09-30 13F/A-1 WESTERN DIGITAL COM 958102105 6,354 26 0.41 763 88.61 0.0046
2025-11-05 2025-09-30 13F WESTERN DIGITAL COM 958102105 56,163 1,035 6,743 0.0357
2026-03-04 2025-06-30 13F/A-1 WESTERN DIGITAL COM 958102105 6,328 -1,494 -19.10 405 27.85 0.0029
2025-08-06 2025-06-30 13F WESTERN DIGITAL COM 958102105 55,128 44,334 3,528 0.0219
2026-03-04 2025-03-31 13F/A-1 WESTERN DIGITAL COM 958102105 7,822 -4,449 -36.26 316 -56.77 0.0027
2025-05-08 2025-03-31 13F WESTERN DIGITAL COM 958102105 10,794 -1,477 436 0.0032
2025-01-29 2024-12-31 13F WESTERN DIGITAL COM 958102105 12,271 -9,244 -42.97 732 -50.24 0.0058
2024-11-04 2024-09-30 13F WESTERN DIGITAL COM 958102105 21,515 14,424 203.41 1,469 173.56 0.0122
2024-08-05 2024-06-30 13F WESTERN DIGITAL COM 958102105 7,091 -26 -0.37 537 10.72 0.0054
2024-05-06 2024-03-31 13F WESTERN DIGITAL COM 958102105 7,117 449 6.73 486 38.97 0.0056
2024-02-05 2023-12-31 13F WESTERN DIGITAL COM 958102105 6,668 444 7.13 349 22.89 0.0045
2023-11-07 2023-09-30 13F WESTERN DIGITAL COM 958102105 6,224 6,224 284 0.0042
2015-08-11 2015-06-30 13F WESTERN DIGITAL COM 958102105 0 -2,250 -100.00 0 -100.00
2015-05-13 2015-03-31 13F WESTERN DIGITAL COM 958102105 2,250 10 0.45 205 -17.34 0.0726
2015-02-09 2014-12-31 13F WESTERN DIGITAL COM 958102105 2,240 -20 -0.88 248 12.73 0.0939
2014-10-28 2014-09-30 13F WESTERN DIGITAL COM 958102105 2,260 -20 -0.88 220 4.76 0.0935
2014-08-05 2014-06-30 13F WESTERN DIGITAL COM 958102105 2,280 0 0.00 210 0.48 0.0908
2014-05-13 2014-03-31 13F WESTERN DIGITAL COM 958102105 2,280 2,280 209 0.0968
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.