Question 1

How many shares of WDC does Sumitomo Mitsui Trust Group, Inc. own?

Accepted Answer

As of 2026-Q1, Sumitomo Mitsui Trust Group, Inc. holds 836,666 shares of WDC (WESTERN DIGITAL CORP).

Question 2

What is Sumitomo Mitsui Trust Group, Inc.'s WDC position worth?

Accepted Answer

As of 2026-Q1, Sumitomo Mitsui Trust Group, Inc.'s WDC position is worth $226.3M.

Question 3

Is Sumitomo Mitsui Trust Group, Inc. buying or selling WDC?

Accepted Answer

In 2026-Q1, Sumitomo Mitsui Trust Group, Inc. decreased their WDC position (-5.7% change in shares).

Question 4

When did Sumitomo Mitsui Trust Group, Inc. first buy WDC?

Accepted Answer

Based on available 13F filings, Sumitomo Mitsui Trust Group, Inc. first reported a position in WDC in 2024-Q2. They have held the position across 29 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Decreased	836,666	-5.7%	$226.3M	0.1%	$250.61	0
2025-Q4	Increased	887,059	+9.8%	$152.8M	0.1%	$176.06	33
2025-Q3	Increased	807,641	+0.9%	$97M	0.1%	$116.65	30
2025-Q2	Increased	800,127	+2.6%	$51.2M	0.0%	$63.17	30
2025-Q1	Decreased	779,669	-7.4%	$31.5M	0.0%	$40.46	0
2024-Q4	Increased	841,700	+6.3%	$50.2M	0.0%	$44.89	31
2024-Q3	Decreased	791,512	-11.3%	$54.1M	0.0%	$52.27	0
2024-Q2	Increased	892,338	+8.5%	$67.6M	0.0%	$57.05	32