Western Digital Corp

ADAGE CAPITAL PARTNERS GP, L.L.C. WDC

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

258,637

Value ($000)

44,555

Weight

0.1%

2013 Q4 - 2025 Q4 (27 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/17/2026	44,555	0.1%	258,637	12/31/2025
2025 Q3	11/14/2025	28,915	0.0%	240,837	9/30/2025
2025 Q2	8/14/2025	17,248	0.0%	269,537	6/30/2025
2025 Q1	5/15/2025	9,802	0.0%	242,437	3/31/2025
2024 Q4	2/14/2025	16,281	0.0%	273,037	12/31/2024
2024 Q3	11/14/2024	23,406	0.0%	342,737	9/30/2024
2024 Q2	8/14/2024	23,734	0.0%	313,237	6/30/2024
2024 Q1	5/15/2024	21,703	0.0%	318,037	3/31/2024
2023 Q4	2/14/2024	12,566	0.0%	239,937	12/31/2023
2023 Q3	11/14/2023	11,094	0.0%	243,137	9/30/2023
2023 Q2	8/14/2023	12,090	0.0%	318,737	6/30/2023
2023 Q1	5/15/2023	12,044	0.0%	319,737	3/31/2023
2022 Q4	2/14/2023	10,195	0.0%	323,137	12/31/2022
2022 Q3	11/14/2022	10,385	0.0%	319,037	9/30/2022
2022 Q2	8/15/2022	14,621	0.0%	326,137	6/30/2022
2022 Q1	5/16/2022	14,385	0.0%	289,737	3/31/2022
2021 Q4	2/14/2022	21,652	0.0%	332,037	12/31/2021
2021 Q3	11/15/2021	34,972	0.1%	619,637	9/30/2021
2021 Q2	8/16/2021	33,509	0.1%	470,837	6/30/2021
2021 Q1	5/17/2021	18,299	0.0%	274,137	3/31/2021
2020 Q4	2/16/2021	15,816	0.0%	285,537	12/31/2020
2020 Q3	11/16/2020	9,925	0.0%	271,537	9/30/2020
2020 Q2	8/14/2020	12,695	0.0%	287,537	6/30/2020
2020 Q1	5/15/2020	9,970	0.0%	239,537	3/31/2020
2019 Q4	2/14/2020	15,844	0.0%	249,637	12/31/2019
2014 Q1	5/15/2014	36,030	0.1%	392,400	3/31/2014
2013 Q4	2/14/2014	30,439	0.1%	362,800	12/31/2013