Western Digital Corporation
CH ˙ BRSE ˙ US9581021055
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityCH:12355 / Western Digital Corporation
InstitutionAdvisorNet Financial, Inc
Latest Disclosed Ownership146 shares
Latest Disclosed Value $ 39,492
AdvisorNet Financial, Inc reports 3.31% decrease in ownership of 12355 / Western Digital Corporation

On April 17, 2026 - AdvisorNet Financial, Inc filed a 13F-HR form disclosing ownership of 146 shares of Western Digital Corporation (CH:12355) valued at $39,492 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 151 shares of Western Digital Corporation. This represents a change in shares of -3.31% 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)
2026-04-17 2026-03-31 13F WESTERN DIGITAL CORP COM Stock 958102105 146 -5 -3.31 39 50.00 0.0020
2026-01-20 2025-12-31 13F WESTERN DIGITAL CORP COM Stock 958102105 151 1 0.67 26 44.44 0.0014
2025-10-09 2025-09-30 13F WESTERN DIGITAL CORP COM Stock 958102105 150 0 0.00 18 100.00 0.0010
2025-07-14 2025-06-30 13F WESTERN DIGITAL CORP COM Stock 958102105 150 28 22.95 10 125.00 0.0006
2025-04-07 2025-03-31 13F WESTERN DIGITAL CORP COM Stock 958102105 122 5 4.27 5 -33.33 0.0004
2025-01-13 2024-12-31 13F WESTERN DIGITAL CORP COM Stock 958102105 117 -34 -22.52 7 -40.00 0.0006
2024-10-15 2024-09-30 13F WESTERN DIGITAL COM Stock 958102105 151 -2 -1.31 10 -9.09 0.0008
2024-07-16 2024-06-30 13F WESTERN DIGITAL COM Stock 958102105 153 0 0.00 12 10.00 0.0011
2024-04-12 2024-03-31 13F WESTERN DIGITAL COM Stock 958102105 153 -25 -14.04 10 11.11 0.0010
2024-01-19 2023-12-31 13F WESTERN DIGITAL COM Stock 958102105 178 122 217.86 9 350.00 0.0009
2023-10-12 2023-09-30 13F WESTERN DIGITAL COM Stock 958102105 56 -85 -60.28 3 -60.00 0.0002
2023-07-14 2023-06-30 13F WESTERN DIGITAL COM Stock 958102105 141 -1 -0.70 5 0.00 0.0005
2023-04-28 2023-03-31 13F WESTERN DIGITAL COM Stock 958102105 142 -431 -75.22 5 -72.22 0.0005
2023-01-13 2022-12-31 13F WESTERN DIGITAL COM Stock 958102105 573 89 18.39 18 12.50 0.0018
2022-10-04 2022-09-30 13F WESTERN DIGITAL COM Stock 958102105 484 -141 -22.56 16 -42.86 0.0016
2022-07-07 2022-06-30 13F WESTERN DIGITAL COM Stock 958102105 625 -116 -15.65 28 -24.32 0.0028
2022-04-14 2022-03-31 13F WESTERN DIGITAL COM Stock 958102105 741 140 23.29 37 -5.13 0.0023
2022-01-19 2021-12-31 13F WESTERN DIGITAL COM Stock 958102105 601 131 27.87 39 44.44 0.0024
2021-10-15 2021-09-30 13F WESTERN DIGITAL COM Stock 958102105 470 463 6,614.29 27 0.0019
2021-07-06 2021-06-30 13F WESTERN DIGITAL COM Stock 958102105 7 0 0.00 0 0.0000
2021-04-14 2021-03-31 13F WESTERN DIGITAL COM Stock 958102105 7 -270 -97.47 0 -100.00
2021-02-04 2020-12-31 13F WESTERN DIGITAL COM Stock 958102105 277 270 3,857.14 15 0.0012
2020-11-06 2020-09-30 13F WESTERN DIGITAL COM Stock 958102105 7 -211 -96.79 0 -100.00
2020-08-26 2020-06-30 13F WESTERN DIGITAL COM Stock 958102105 218 0 0.00 10 11.11 0.0008
2020-05-14 2020-03-31 13F WESTERN DIGITAL COM Stock 958102105 218 0 0.00 9 -35.71 0.0008
2020-02-12 2019-12-31 13F WESTERN DIGITAL CORP COM Stock 958102105 218 -2,953 -93.13 14 -92.59 0.0012
2019-10-23 2019-09-30 13F WESTERN DIGITAL CORP COM Stock 958102105 3,171 3,171 189 0.0174
2019-07-15 2019-06-30 13F WESTERN DIGITAL CORP COM Stock 958102105 0 -624 -100.00 0 -100.00
2019-05-14 2019-03-31 13F WESTERN DIGITAL CORP COM Stock 958102105 624 600 2,500.00 30 2,900.00 0.0037
2019-02-08 2018-12-31 13F WESTERN DIGITAL CORP COM Stock 958102105 24 -143 -85.63 1 -90.00 0.0001
2018-11-14 2018-09-30 13F WESTERN DIGITAL CORP COM Stock 958102105 167 -137 -45.07 10 -58.33 0.0013
2018-07-26 2018-06-30 13F WESTERN DIGITAL CORP COM Stock 958102105 304 -3,213 -91.36 24 -92.62 0.0032
2018-05-08 2018-03-31 13F WESTERN DIGITAL CORP COM Stock 958102105 3,517 -350 -9.05 325 5.52 0.0449
2018-02-27 2017-12-31 13F WESTERN DIGITAL CORP COM Stock 958102105 3,867 3,867 308 0.0468
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.