Question 1

How many shares of WDC does ADAGE CAPITAL PARTNERS GP, L.L.C. own?

Accepted Answer

As of 2026-Q1, ADAGE CAPITAL PARTNERS GP, L.L.C. holds 293,737 shares of WDC (WESTERN DIGITAL CORP).

Question 2

What is ADAGE CAPITAL PARTNERS GP, L.L.C.'s WDC position worth?

Accepted Answer

As of 2026-Q1, ADAGE CAPITAL PARTNERS GP, L.L.C.'s WDC position is worth $79.5M.

Question 3

Is ADAGE CAPITAL PARTNERS GP, L.L.C. buying or selling WDC?

Accepted Answer

In 2026-Q1, ADAGE CAPITAL PARTNERS GP, L.L.C. increased their WDC position (+13.6% change in shares).

Question 4

When did ADAGE CAPITAL PARTNERS GP, L.L.C. first buy WDC?

Accepted Answer

Based on available 13F filings, ADAGE CAPITAL PARTNERS GP, L.L.C. first reported a position in WDC in 2024-Q2. They have held the position across 30 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Increased	293,737	+13.6%	$79.5M	0.1%	$250.61	40
2025-Q4	Increased	258,637	+7.4%	$44.6M	0.1%	$176.06	31
2025-Q3	Decreased	240,837	-10.7%	$28.9M	0.0%	$116.65	0
2025-Q2	Increased	269,537	+11.2%	$17.2M	0.0%	$63.17	31
2025-Q1	Decreased	242,437	-11.2%	$9.8M	0.0%	$40.46	0
2024-Q4	Decreased	273,037	-20.3%	$16.3M	0.0%	$44.89	0
2024-Q3	Increased	342,737	+9.4%	$23.4M	0.0%	$52.27	31
2024-Q2	Decreased	313,237	-1.5%	$23.7M	0.0%	$57.05	0