Tcw Group Inc reports 3.06% increase in ownership of WDC / Western Digital Corporation

Western Digital Corporation

DE ˙ XTRA ˙ US9581021055

506,20 € ↓ -6,10 (-1,19%)

2026-06-04
CENA AKCJI

Security	DE:WDC / Western Digital Corporation
Institution	Tcw Group Inc
Latest Disclosed Ownership	5,584 shares
Latest Disclosed Value	$ 1,510,416

On May 14, 2026 - Tcw Group Inc filed a 13F-HR form disclosing ownership of 5,584 shares of Western Digital Corporation (DE:WDC) valued at $1,282,086 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,418 shares of Western Digital Corporation. This represents a change in shares of 3.06% during the quarter. The current value of the position is $2,826,621 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-14	2026-03-31	13F	WESTERN DIGITAL	COM	958102105	5,584	166	3.06	1,510	61.84	0.0060
2026-02-17	2025-12-31	13F	WESTERN DIGITAL	COM	958102105	5,418	5,418		933		0.0067
2020-10-30	2020-09-30	13F	WESTERN DIGITAL	COM	958102105	0	-48,246	-100.00	0	-100.00
2020-08-05	2020-06-30	13F	WESTERN DIGITAL	COM	958102105	48,246	-112,770	-70.04	2,130	-68.21	0.0248
2020-05-05	2020-03-31	13F	WESTERN DIGITAL	COM	958102105	161,016	-2,216	-1.36	6,701	-35.32	0.0927
2020-02-10	2019-12-31	13F	WESTERN DIGITAL	COM	958102105	163,232	-191,328	-53.96	10,360	-51.01	0.1147
2019-11-13	2019-09-30	13F	WESTERN DIGITAL	COM	958102105	354,560	-109,144	-23.54	21,146	-4.10	0.2409
2019-08-07	2019-06-30	13F	WESTERN DIGITAL	COM	958102105	463,704	-576,982	-55.44	22,049	-55.92	0.2345
2019-05-13	2019-03-31	13F	WESTERN DIGITAL	COM	958102105	1,040,686	-67,515	-6.09	50,016	22.08	0.4790
2019-02-11	2018-12-31	13F	WESTERN DIGITAL	COM	958102105	1,108,201	-750,152	-40.37	40,971	-62.34	0.4239
2018-10-30	2018-09-30	13F	WESTERN DIGITAL	COM	958102105	1,858,353	-302,031	-13.98	108,788	-34.95	0.8921
2018-08-01	2018-06-30	13F	WESTERN DIGITAL	COM	958102105	2,160,384	61,116	2.91	167,236	-13.66	1.3564
2018-05-10	2018-03-31	13F	WESTERN DIGITAL	COM	958102105	2,099,268	468,881	28.76	193,700	49.39	1.5754
2018-02-09	2017-12-31	13F	WESTERN DIGITAL	COM	958102105	1,630,387	-151,931	-8.52	129,664	-15.80	1.0442
2017-11-06	2017-09-30	13F	WESTERN DIGITAL	COM	958102105	1,782,318	36,688	2.10	153,993	-0.43	1.2240
2017-08-11	2017-06-30	13F	WESTERN DIGITAL	COM	958102105	1,745,630	-336,639	-16.17	154,663	-10.00	1.2843
2017-05-11	2017-03-31	13F	WESTERN DIGITAL	COM	958102105	2,082,269	-11,299	-0.54	171,850	20.80	1.4334
2017-02-10	2016-12-31	13F	WESTERN DIGITAL	COM	958102105	2,093,568	466,901	28.70	142,258	49.57	1.0709
2016-11-14	2016-09-30	13F	WESTERN DIGITAL	COM	958102105	1,626,667	70,401	4.52	95,111	29.32	0.7224
2016-08-12	2016-06-30	13F/A-1	WESTERN DIGITAL	COM	958102105	1,556,266	26,376	1.72	73,549	1.77	0.5557
2016-08-11	2016-06-30	13F	WESTERN DIGITAL	COM	958102105	1,556,266			73,549
2016-05-16	2016-03-31	13F	WESTERN DIGITAL	COM	958102105	1,529,890	216,682	16.50	72,272	-8.35	0.5301
2016-02-16	2015-12-31	13F	WESTERN DIGITAL	COM	958102105	1,313,208	-69,800	-5.05	78,859	-28.22	0.5662
2015-11-13	2015-09-30	13F	WESTERN DIGITAL	COM	958102105	1,383,008	66,767	5.07	109,867	6.44	0.7884
2015-08-12	2015-06-30	13F	WESTERN DIGITAL	COM	958102105	1,316,241	-48,772	-3.57	103,219	-16.91	0.6647
2015-05-13	2015-03-31	13F	WESTERN DIGITAL	COM	958102105	1,365,013	-356,697	-20.72	124,230	-34.82	0.5964
2015-02-13	2014-12-31	13F	WESTERN DIGITAL	COM	958102105	1,721,710	167,426	10.77	190,594	26.00	0.7973
2014-11-14	2014-09-30	13F	WESTERN DIGITAL	COM	958102105	1,554,284	57,855	3.87	151,263	9.52	0.6083
2014-08-14	2014-06-30	13F	WESTERN DIGITAL	COM	958102105	1,496,429	-99,055	-6.21	138,120	-5.72	0.5688
2014-05-13	2014-03-31	13F	WESTERN DIGITAL	COM	958102105	1,595,484	-10,390	-0.65	146,498	8.73	0.6082
2014-02-18	2013-12-31	13F/A-1	WESTERN DIGITAL	COM	958102105	1,605,874	-48,292	-2.92	134,733	28.47	0.5679
2014-02-14	2013-12-31	13F	WESTERN DIGITAL	COM	958102105	134,733			1,605,874
2013-11-14	2013-09-30	13F	WESTERN DIGITAL	COM	958102105	1,654,166	-10,884	-0.65	104,873	1.44	0.4844
2013-08-14	2013-06-30	13F/A-1	WESTERN DIGITAL	COM	958102105	1,665,050	1,665,050		103,384		0.5098
2013-08-14	2013-06-30	13F	WESTERN DIGITAL	COM	958102105	1,665,050			103,384

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.