Western Digital Corporation
US ˙ NasdaqGS ˙ US9581021055

SecurityWDC / Western Digital Corporation
InstitutionDiversified Trust Co
Latest Disclosed Ownership4,975 shares
Latest Disclosed Value $ 1,345,687
Diversified Trust Co reports 2.39% increase in ownership of WDC / Western Digital Corporation

On April 16, 2026 - Diversified Trust Co filed a 13F-HR form disclosing ownership of 4,975 shares of Western Digital Corporation (US:WDC) valued at $1,345,688 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 4,859 shares of Western Digital Corporation. This represents a change in shares of 2.39% during the quarter. The current value of the position is $2,955,697 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)
2026-04-16 2026-03-31 13F WESTERN DIGITAL COM 958102105 4,975 116 2.39 1,346 60.69 0.0165
2026-01-09 2025-12-31 13F WESTERN DIGITAL COM 958102105 4,859 4,859 837 0.0154
2017-10-17 2017-09-30 13F WESTERN DIGITAL COM 958102105 0 -17,729 -100.00 0 -100.00
2017-07-18 2017-06-30 13F WESTERN DIGITAL COM 958102105 17,729 -21,556 -54.87 1,571 -51.54 0.1277
2017-04-21 2017-03-31 13F WESTERN DIGITAL COM 958102105 39,285 24,615 167.79 3,242 225.18 0.2488
2017-02-22 2016-12-31 13F WESTERN DIGITAL COM 958102105 14,670 14,670 997 0.0846
2016-11-03 2016-09-30 13F WESTERN DIGITAL COM 958102105 0 -26,690 -100.00 0 -100.00
2016-07-26 2016-06-30 13F WESTERN DIGITAL COM 958102105 26,690 -2,975 -10.03 1,261 -9.99 0.1455
2016-05-02 2016-03-31 13F WESTERN DIGITAL COM 958102105 29,665 1,998 7.22 1,401 -15.65 0.1542
2016-01-27 2015-12-31 13F WESTERN DIGITAL COM 958102105 27,667 3,327 13.67 1,661 -14.12 0.1780
2015-11-02 2015-09-30 13F WESTERN DIGITAL COM 958102105 24,340 -20,600 -45.84 1,934 -45.12 0.2078
2015-07-15 2015-06-30 13F WESTERN DIGITAL COM 958102105 44,940 15,050 50.35 3,524 29.56 0.3330
2015-04-29 2015-03-31 13F WESTERN DIGITAL COM 958102105 29,890 29,890 0.00 2,720 0.2356
2015-02-04 2014-12-31 13F WESTERN DIGITAL COM 958102105 0 -20,000 -100.00 0 -100.00
2014-08-15 2014-06-30 13F WESTERN DIGITAL COM 958102105 20,000 -2,350 -10.51 1,846 -1.55 0.1540
2014-02-10 2013-12-31 13F WESTERN DIGITAL Common 958102105 22,350 -1,650 -6.88 1,875 23.19 0.1912
2013-10-18 2013-09-30 13F WESTERN DIGITAL Common 958102105 24,000 4,175 21.06 1,522 23.64 0.1608
2013-07-23 2013-06-30 13F WESTERN DIGITAL Common 958102105 19,825 19,825 1,231 0.1464
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.