Western Digital Corporation
MX ˙ BMV ˙ US9581021055
SecurityMX:WDC / Western Digital Corporation
InstitutionFifth Third Bancorp
Latest Disclosed Ownership72,692 shares
Latest Disclosed Value $ 19,662,512
Fifth Third Bancorp reports 257.51% increase in ownership of WDC / Western Digital Corporation

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 72,692 shares of Western Digital Corporation (MX:WDC) valued at $19,662,512 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 20,333 shares of Western Digital Corporation. This represents a change in shares of 257.51% 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)
2026-05-01 2026-03-31 13F WESTERN DIGITAL COM 958102105 72,692 52,359 257.51 19,663 461.45 0.0359
2026-02-02 2025-12-31 13F WESTERN DIGITAL COM 958102105 20,333 -853 -4.03 3,503 37.71 0.0111
2025-11-07 2025-09-30 13F WESTERN DIGITAL COM 958102105 21,186 85 0.40 2,544 88.37 0.0081
2025-07-15 2025-06-30 13F WESTERN DIGITAL COM 958102105 21,101 6,103 40.69 1,350 122.77 0.0047
2025-04-15 2025-03-31 13F WESTERN DIGITAL COM 958102105 14,998 1,729 13.03 606 -23.39 0.0023
2025-01-21 2024-12-31 13F WESTERN DIGITAL COM 958102105 13,269 917 7.42 791 -6.17 0.0029
2024-10-17 2024-09-30 13F WESTERN DIGITAL COM 958102105 12,352 497 4.19 844 -6.12 0.0031
2024-07-22 2024-06-30 13F WESTERN DIGITAL COM 958102105 11,855 14 0.12 898 11.14 0.0034
2024-04-23 2024-03-31 13F WESTERN DIGITAL COM 958102105 11,841 479 4.22 808 35.80 0.0032
2024-01-19 2023-12-31 13F WESTERN DIGITAL COM 958102105 11,362 944 9.06 595 25.26 0.0025
2023-10-31 2023-09-30 13F WESTERN DIGITAL COM 958102105 10,418 1,995 23.69 475 48.90 0.0022
2023-07-26 2023-06-30 13F WESTERN DIGITAL COM 958102105 8,423 -1,178 -12.27 319 -11.63 0.0014
2023-04-24 2023-03-31 13F WESTERN DIGITAL COM 958102105 9,601 2,522 35.63 362 61.88 0.0017
2023-01-25 2022-12-31 13F WESTERN DIGITAL COM 958102105 7,079 2,526 55.48 223 50.68 0.0011
2022-10-25 2022-09-30 13F WESTERN DIGITAL COM 958102105 4,553 -4,382 -49.04 148 -63.09 0.0008
2022-08-04 2022-06-30 13F WESTERN DIGITAL COM 958102105 8,935 5,264 143.39 401 120.33 0.0019
2022-04-19 2022-03-31 13F WESTERN DIGITAL COM 958102105 3,671 -271 -6.87 182 -29.18 0.0007
2022-02-01 2021-12-31 13F WESTERN DIGITAL COM 958102105 3,942 2,004 103.41 257 135.78 0.0010
2021-10-15 2021-09-30 13F WESTERN DIGITAL COM 958102105 1,938 -205 -9.57 109 -28.76 0.0005
2021-08-06 2021-06-30 13F WESTERN DIGITAL COM 958102105 2,143 415 24.02 153 33.04 0.0007
2021-05-07 2021-03-31 13F WESTERN DIGITAL COM 958102105 1,728 280 19.34 115 43.75 0.0005
2021-02-16 2020-12-31 13F WESTERN DIGITAL COM 958102105 1,448 52 3.72 80 56.86 0.0004
2020-11-09 2020-09-30 13F WESTERN DIGITAL COM 958102105 1,396 -2,645 -65.45 51 -71.35 0.0003
2020-08-05 2020-06-30 13F WESTERN DIGITAL COM 958102105 4,041 -384 -8.68 178 -3.26 0.0011
2020-05-05 2020-03-31 13F WESTERN DIGITAL COM 958102105 4,425 -11 -0.25 184 -34.75 0.0013
2020-02-14 2019-12-31 13F WESTERN DIGITAL COM 958102105 4,436 -640 -12.61 282 -6.93 0.0016
2019-11-14 2019-09-30 13F WESTERN DIGITAL COM 958102105 5,076 331 6.98 303 34.07 0.0018
2019-08-07 2019-06-30 13F WESTERN DIGITAL COM 958102105 4,745 -1,200 -20.19 226 -20.98 0.0014
2019-05-14 2019-03-31 13F WESTERN DIGITAL COM 958102105 5,945 437 7.93 286 40.20 0.0018
2019-02-14 2018-12-31 13F WESTERN DIGITAL COM 958102105 5,508 -3,744 -40.47 204 -62.36 0.0015
2018-11-14 2018-09-30 13F WESTERN DIGITAL COM 958102105 9,252 -74 -0.79 542 -24.93 0.0034
2018-08-14 2018-06-30 13F WESTERN DIGITAL COM 958102105 9,326 765 8.94 722 -8.61 0.0049
2018-05-15 2018-03-31 13F WESTERN DIGITAL COM 958102105 8,561 2,784 48.19 790 72.11 0.0054
2018-02-14 2017-12-31 13F WESTERN DIGITAL COM 958102105 5,777 -505 -8.04 459 -15.47 0.0031
2017-11-14 2017-09-30 13F WESTERN DIGITAL COM 958102105 6,282 620 10.95 543 8.17 0.0039
2017-08-11 2017-06-30 13F WESTERN DIGITAL COM 958102105 5,662 -852 -13.08 502 -6.69 0.0037
2017-05-12 2017-03-31 13F WESTERN DIGITAL COM 958102105 6,514 -291 -4.28 538 16.45 0.0041
2017-02-13 2016-12-31 13F/A-1 WESTERN DIGITAL COM 958102105 6,805 457 7.20 462 24.53 0.0037
2017-02-09 2016-12-31 13F WESTERN DIGITAL COM 958102105 6,348 0 371 0.0031
2016-11-10 2016-09-30 13F WESTERN DIGITAL COM 958102105 6,348 -3,372 -34.69 371 -19.17 0.0031
2016-08-11 2016-06-30 13F WESTERN DIGITAL COM 958102105 9,720 8,969 1,194.27 459 1,211.43 0.0039
2016-05-13 2016-03-31 13F WESTERN DIGITAL COM 958102105 751 -704 -48.38 35 -59.77 0.0003
2016-02-16 2015-12-31 13F WESTERN DIGITAL COM 958102105 1,455 -706 -32.67 87 -49.42 0.0008
2015-11-13 2015-09-30 13F WESTERN DIGITAL COM 958102105 2,161 -333 -13.35 172 -12.24 0.0016
2015-08-14 2015-06-30 13F WESTERN DIGITAL COM 958102105 2,494 217 9.53 196 -5.31 0.0017
2015-05-14 2015-03-31 13F WESTERN DIGITAL COM 958102105 2,277 -169 -6.91 207 -23.62 0.0018
2015-02-13 2014-12-31 13F WESTERN DIGITAL COM 958102105 2,446 407 19.96 271 36.87 0.0023
2014-11-17 2014-09-30 13F WESTERN DIGITAL COM 958102105 2,039 -156 -7.11 198 -2.46 0.0018
2014-08-14 2014-06-30 13F WESTERN DIGITAL COM 958102105 2,195 121 5.83 203 6.84 0.0018
2014-05-15 2014-03-31 13F WESTERN DIGITAL COM 958102105 2,074 258 14.21 190 25.00 0.0018
2014-02-14 2013-12-31 13F WESTERN DIGITAL COM 958102105 1,816 382 26.64 152 67.03 0.0015
2013-11-14 2013-09-30 13F WESTERN DIGITAL COM 958102105 1,434 0 0.00 91 2.25 0.0009
2013-08-14 2013-06-30 13F WESTERN DIGITAL COM 958102105 1,434 1,434 89 0.0009
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.