Western Digital Corporation
MX ˙ BMV ˙ US9581021055
SecurityMX:WDC / Western Digital Corporation
InstitutionTd Asset Management Inc
Latest Disclosed Ownership173,242 shares
Latest Disclosed Value $ 46,860,229
Td Asset Management Inc reports 23.26% increase in ownership of WDC / Western Digital Corporation

On May 11, 2026 - Td Asset Management Inc filed a 13F-HR form disclosing ownership of 173,242 shares of Western Digital Corporation (MX:WDC) valued at $46,860,229 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 140,547 shares of Western Digital Corporation. This represents a change in shares of 23.26% 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)
2026-05-11 2026-03-31 13F WESTERN DIGITAL COM 958102105 173,242 32,695 23.26 46,860 93.54 0.0203
2026-02-10 2025-12-31 13F WESTERN DIGITAL COM 958102105 140,547 16,899 13.67 24,212 63.10 0.0195
2025-11-10 2025-09-30 13F WESTERN DIGITAL COM 958102105 123,648 -2,675 -2.12 14,845 83.66 0.0121
2025-07-28 2025-06-30 13F WESTERN DIGITAL COM 958102105 126,323 -27,910 -18.10 8,083 29.64 0.0069
2025-05-07 2025-03-31 13F WESTERN DIGITAL COM 958102105 154,233 1,347 0.88 6,236 -31.60 0.0057
2025-02-11 2024-12-31 13F WESTERN DIGITAL COM 958102105 152,886 -5,508 -3.48 9,117 -17.09 0.0081
2024-11-01 2024-09-30 13F WESTERN DIGITAL COM 958102105 158,394 3,171 2.04 10,996 -6.51 0.0097
2024-08-02 2024-06-30 13F WESTERN DIGITAL COM 958102105 155,223 18,627 13.64 11,761 26.18 0.0110
2024-05-08 2024-03-31 13F WESTERN DIGITAL COM 958102105 136,596 3,228 2.42 9,321 33.46 0.0087
2024-02-12 2023-12-31 13F WESTERN DIGITAL COM 958102105 133,368 7,770 6.19 6,984 21.86 0.0069
2023-10-27 2023-09-30 13F WESTERN DIGITAL COM 958102105 125,598 820 0.66 5,731 21.11 0.0069
2023-08-09 2023-06-30 13F WESTERN DIGITAL COM 958102105 124,778 435 0.35 4,733 1.02 0.0054
2023-05-10 2023-03-31 13F WESTERN DIGITAL COM 958102105 124,343 -37 -0.03 4,684 19.37 0.0057
2023-02-07 2022-12-31 13F WESTERN DIGITAL COM 958102105 124,380 2,318 1.90 3,924 -0.10 0.0048
2022-11-07 2022-09-30 13F WESTERN DIGITAL COM 958102105 122,062 846 0.70 3,928 -27.71 0.0049
2022-08-04 2022-06-30 13F WESTERN DIGITAL COM 958102105 121,216 -2,539 -2.05 5,434 -11.56 0.0063
2022-05-10 2022-03-31 13F WESTERN DIGITAL COM 958102105 123,755 -5,809 -4.48 6,144 -27.28 0.0036
2022-02-10 2021-12-31 13F WESTERN DIGITAL COM 958102105 129,564 -45,943 -26.18 8,449 -14.71 0.0071
2021-11-09 2021-09-30 13F WESTERN DIGITAL COM 958102105 175,507 -121,713 -40.95 9,906 -48.67 0.0103
2021-08-11 2021-06-30 13F WESTERN DIGITAL COM 958102105 297,220 81,987 38.09 19,298 34.32 0.0196
2021-05-14 2021-03-31 13F WESTERN DIGITAL COM 958102105 215,233 70,467 48.68 14,367 79.16 0.0161
2021-02-16 2020-12-31 13F WESTERN DIGITAL COM 958102105 144,766 27,110 23.04 8,019 86.49 0.0097
2020-11-10 2020-09-30 13F WESTERN DIGITAL COM 958102105 117,656 32,995 38.97 4,300 15.03 0.0060
2020-08-13 2020-06-30 13F WESTERN DIGITAL COM 958102105 84,661 1,613 1.94 3,738 8.16 0.0053
2020-05-15 2020-03-31 13F WESTERN DIGITAL COM 958102105 83,048 -23,942 -22.38 3,456 -49.11 0.0058
2020-02-11 2019-12-31 13F WESTERN DIGITAL COM 958102105 106,990 -6,886 -6.05 6,791 0.00 0.0099
2019-11-07 2019-09-30 13F WESTERN DIGITAL COM 958102105 113,876 -21,799 -16.07 6,791 5.27 0.0104
2019-08-01 2019-06-30 13F WESTERN DIGITAL COM 958102105 135,675 -4,343 -3.10 6,451 -4.13 0.0097
2019-05-08 2019-03-31 13F WESTERN DIGITAL COM 958102105 140,018 28,037 25.04 6,729 62.54 0.0103
2019-02-01 2018-12-31 13F WESTERN DIGITAL COM 958102105 111,981 -2,985 -2.60 4,140 -38.48 0.0072
2018-11-01 2018-09-30 13F WESTERN DIGITAL COM 958102105 114,966 13,727 13.56 6,730 -14.13 0.0100
2018-07-31 2018-06-30 13F WESTERN DIGITAL COM 958102105 101,239 838 0.83 7,837 -15.40 0.0119
2018-05-11 2018-03-31 13F WESTERN DIGITAL COM 958102105 100,401 -3,656 -3.51 9,264 11.94 0.0142
2018-02-02 2017-12-31 13F WESTERN DIGITAL COM 958102105 104,057 -1,669 -1.58 8,276 -9.40 0.0121
2017-11-09 2017-09-30 13F WESTERN DIGITAL COM 958102105 105,726 -4,288 -3.90 9,135 -6.28 0.0137
2017-08-01 2017-06-30 13F WESTERN DIGITAL COM 958102105 110,014 -8,283 -7.00 9,747 -0.16 0.0154
2017-05-05 2017-03-31 13F WESTERN DIGITAL COM 958102105 118,297 -2,326 -1.93 9,763 19.12 0.0156
2017-02-08 2016-12-31 13F WESTERN DIGITAL COM 958102105 120,623 -64,038 -34.68 8,196 -24.09 0.0138
2016-11-02 2016-09-30 13F WESTERN DIGITAL COM 958102105 184,661 -12,930 -6.54 10,797 15.62 0.0187
2016-08-04 2016-06-30 13F WESTERN DIGITAL COM 958102105 197,591 87,715 79.83 9,338 79.92 0.0169
2016-05-05 2016-03-31 13F WESTERN DIGITAL COM 958102105 109,876 -5,048 -4.39 5,190 -24.80 0.0097
2016-02-04 2015-12-31 13F WESTERN DIGITAL COM 958102105 114,924 4,598 4.17 6,902 -21.25 0.0137
2015-11-12 2015-09-30 13F WESTERN DIGITAL COM 958102105 110,326 4,528 4.28 8,764 5.63 0.0173
2015-08-11 2015-06-30 13F WESTERN DIGITAL COM 958102105 105,798 1,252 1.20 8,297 -12.79 0.0148
2015-04-28 2015-03-31 13F WESTERN DIGITAL COM 958102105 104,546 104,546 0.00 9,514 0.0172
2015-01-30 2014-12-31 13F WESTERN DIGITAL COM 958102105 0 -108,662 -100.00 0 -100.00
2014-11-06 2014-09-30 13F WESTERN DIGITAL COM 958102105 108,662 -4,917 -4.33 10,575 0.88 0.0182
2014-08-12 2014-06-30 13F WESTERN DIGITAL COM 958102105 113,579 -14,904 -11.60 10,483 -11.14 0.0179
2014-05-09 2014-03-31 13F WESTERN DIGITAL COM 958102105 128,483 -8,245 -6.03 11,797 2.84 0.0215
2014-02-07 2013-12-31 13F WESTERN DIGITAL COM 958102105 136,728 -5,795 -4.07 11,471 26.95 0.0214
2013-11-08 2013-09-30 13F WESTERN DIGITAL COM 958102105 142,523 -5,292 -3.58 9,036 -1.55 0.0180
2013-07-24 2013-06-30 13F WESTERN DIGITAL COM 958102105 147,815 147,815 9,178 0.0197
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.