Burney Co/ reports 43.93% decrease in ownership of WDC / Western Digital Corporation

Western Digital Corporation

MX ˙ BMV ˙ US9581021055

Security	MX:WDC / Western Digital Corporation
Institution	Burney Co/
Latest Disclosed Ownership	817 shares
Latest Disclosed Value	$ 220,990

On April 29, 2026 - Burney Co/ filed a 13F-HR form disclosing ownership of 817 shares of Western Digital Corporation (MX:WDC) valued at $220,990 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 1,457 shares of Western Digital Corporation. This represents a change in shares of -43.93% 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-04-29	2026-03-31	13F	WESTERN DIGITAL	COM	958102105	817	-640	-43.93	221	-12.00	0.0056
2026-01-23	2025-12-31	13F	WESTERN DIGITAL	COM	958102105	1,457	1,457		251		0.0078
2021-11-12	2021-09-30	13F	WESTERN DIGITAL	COM	958102105	0	-2,842	-100.00	0	-100.00
2021-08-06	2021-06-30	13F	WESTERN DIGITAL	COM	958102105	2,842	2,842		202		0.0094
2021-05-13	2021-03-31	13F	WESTERN DIGITAL	COM	958102105	0	-4,432	-100.00	0	-100.00
2021-02-11	2020-12-31	13F	WESTERN DIGITAL	COM	958102105	4,432	4,432		245		0.0134
2020-12-14	2020-09-30	13F	WESTERN DIGITAL	COM	958102105	0	-4,802	-100.00	0	-100.00
2020-08-13	2020-06-30	13F	WESTERN DIGITAL	COM	958102105	4,802	-226	-4.49	212	1.44	0.0138
2020-05-13	2020-03-31	13F	WESTERN DIGITAL	COM	958102105	5,028	-394	-7.27	209	-39.24	0.0161
2020-02-14	2019-12-31	13F	WESTERN DIGITAL	COM	958102105	5,422	0	0.00	344	6.50	0.0190
2019-11-12	2019-09-30	13F	WESTERN DIGITAL	COM	958102105	5,422	0	0.00	323	25.19	0.0193
2019-08-12	2019-06-30	13F	WESTERN DIGITAL	COM	958102105	5,422	-410	-7.03	258	-7.86	0.0156
2019-05-13	2019-03-31	13F	WESTERN DIGITAL	COM	958102105	5,832	-171	-2.85	280	26.13	0.0174
2019-02-12	2018-12-31	13F	WESTERN DIGITAL	COM	958102105	6,003	-2,536	-29.70	222	-55.60	0.0156
2018-11-13	2018-09-30	13F	WESTERN DIGITAL	COM	958102105	8,539	-2,163	-20.21	500	-39.61	0.0298
2018-08-13	2018-06-30	13F	WESTERN DIGITAL	COM	958102105	10,702	138	1.31	828	-15.08	0.0485
2018-05-08	2018-03-31	13F	WESTERN DIGITAL	COM	958102105	10,564	-150	-1.40	975	14.44	0.0604
2018-02-13	2017-12-31	13F	WESTERN DIGITAL	COM	958102105	10,714	332	3.20	852	-5.33	0.0482
2017-11-13	2017-09-30	13F/A-1	Western Digital	COM	958102105	10,382	49	0.47	900	-4.96	0.0584
2017-11-09	2017-09-30	13F	Western Digital	COM	958102105	10,333	0		947
2017-08-09	2017-06-30	13F	Western Digital	COM	958102105	10,333	-250	-2.36	947	8.48	0.0620
2017-05-11	2017-03-31	13F	Western Digital	COM	958102105	10,583	-34	-0.32	873	21.08	0.0575
2017-02-07	2016-12-31	13F	Western Digital	COM	958102105	10,617	37	0.35	721	17.43	0.0490
2016-11-14	2016-09-30	13F	Western Digital	COM	958102105	10,580	-703	-6.23	614	15.20	0.0433
2016-08-10	2016-06-30	13F	Western Digital	COM	958102105	11,283	-606	-5.10	533	-5.16	0.0382
2016-05-02	2016-03-31	13F	Western Digital	COM	958102105	11,889	-2,709	-18.56	562	-36.14	0.0409
2016-02-09	2015-12-31	13F	Western Digital	COM	958102105	14,598	-264	-1.78	880	-25.49	0.0652
2015-11-03	2015-09-30	13F	Western Digital	COM	958102105	14,862	-316	-2.08	1,181	-0.76	0.0910
2015-08-10	2015-06-30	13F	Western Digital	COM	958102105	15,178	-444	-2.84	1,190	-16.32	0.0809
2015-05-12	2015-03-31	13F	Western Digital	COM	958102105	15,622	-1,131	-6.75	1,422	-23.34	0.0974
2015-02-11	2014-12-31	13F	WESTN DIGTL	COM	958102105	16,753	-1,241	-6.90	1,855	5.94	0.1469
2014-11-12	2014-09-30	13F	WESTN DIGTL	COM	958102105	17,994	199	1.12	1,751	6.64	0.1501
2014-08-05	2014-06-30	13F/A-1	WESTN DIGTL	COM	958102105	17,795	-270	-1.49	1,642	-1.02	0.1421
2014-08-04	2014-06-30	13F	WESTN DIGTL	COM	958102105	17,795			1,642
2014-05-07	2014-03-31	13F/A-1	WESTN DIGTL	COM	958102105	18,065	-4,187	-18.82	1,659	-11.14	0.1512
2014-02-03	2013-12-31	13F	WESTN DIGTL	COM	958102105	22,252	-1,603	-6.72	1,867	23.48	0.1818
2013-11-04	2013-09-30	13F	WESTN DIGTL	COM	958102105	23,855	-305	-1.26	1,512	0.80	0.1691
2013-07-22	2013-06-30	13F	WESTN DIGTL	COM	958102105	24,160	24,160		1,500		0.1873

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.