Western Digital Corporation
MX ˙ BMV ˙ US9581021055
SecurityMX:WDC / Western Digital Corporation
InstitutionSOUTH STATE Corp
Latest Disclosed Ownership563 shares
Latest Disclosed Value $ 152,286
SOUTH STATE Corp reports 2.18% increase in ownership of WDC / Western Digital Corporation

On May 5, 2026 - SOUTH STATE Corp filed a 13F-HR form disclosing ownership of 563 shares of Western Digital Corporation (MX:WDC) valued at $152,286 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 551 shares of Western Digital Corporation. This represents a change in shares of 2.18% 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)
2026-05-05 2026-03-31 13F WESTERN DIGITAL COM 958102105 563 12 2.18 152 61.70 0.0031
2026-02-11 2025-12-31 13F WESTERN DIGITAL COM 958102105 551 3 0.55 95 44.62 0.0042
2025-11-05 2025-09-30 13F WESTERN DIGITAL COM 958102105 548 -69 -11.18 66 66.67 0.0030
2025-08-06 2025-06-30 13F WESTERN DIGITAL COM 958102105 617 499 422.88 39 875.00 0.0017
2025-05-12 2025-03-31 13F WESTERN DIGITAL COM 958102105 118 118 5 0.0002
2023-02-10 2022-12-31 13F Western Digital Common Stock 958102105 0 -1,500 -100.00 0 -100.00
2022-11-07 2022-09-30 13F Western Digital Common Stock 958102105 1,500 0 0.00 49 -26.87 0.0049
2022-08-05 2022-06-30 13F Western Digital Com Common Stock 958102105 1,500 0 0.00 67 -9.46 0.0063
2022-08-04 2022-03-31 13F/A-1 Western Digital Com Common Stock 958102105 1,500 1,500 74 0.0059
2022-05-06 2022-03-31 13F Western Digital Com Common Stock 958102105 1,500 1,500 74 0.0036
2015-11-06 2015-09-30 13F WESTERN DIGITAL COMMON STOCK 958102105 0 -3,952 -100.00 0 -100.00
2015-08-12 2015-06-30 13F WESTERN DIGITAL COMMON STOCK 958102105 3,952 -923 -18.93 311 -29.95 0.0433
2015-05-07 2015-03-31 13F WESTERN DIGITAL COMMON STOCK 958102105 4,875 0 0.00 444 -17.78 0.0631
2015-02-12 2014-12-31 13F WESTERN DIGITAL COMMON STOCK 958102105 4,875 -145 -2.89 540 10.66 0.0846
2014-10-29 2014-09-30 13F WESTERN DIGITAL COMMON STOCK 958102105 5,020 -391 -7.23 488 -2.20 0.0744
2014-08-15 2014-06-30 13F WESTERN DIGITAL COMMON STOCK 958102105 5,411 -90 -1.64 499 -1.19 0.0823
2014-05-15 2014-03-31 13F WESTERN DIGITAL COMMON STOCK 958102105 5,501 -1,659 -23.17 505 -15.97 0.0813
2014-02-14 2013-12-31 13F WESTERN DIGITAL COMMON STOCK 958102105 7,160 20 0.28 601 32.67 0.0994
2013-11-14 2013-09-30 13F WESTERN DIGITAL COMMON STOCK 958102105 7,140 7,140 453 0.0840
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.