SAN JOSE, CA
WESTERN DIGITAL CORPWDC— Latest position per institution from SEC 13F filings
15
Institutional holders
618.89M
Total shares held
154.89B
Estimated value
30.94M
Avg. position size
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
338.39M
Value
529.79K
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
42.35M
Value
7.30B
Filed
Dec 31, 2025
BLACKROCK, INC.
CIK 2012383
Shares
32.95M
Value
21.05B
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
25.98M
Value
16.60B
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
22.51M
Value
14.38B
Filed
Jun 30, 2026
JPMORGAN CHASE & CO
CIK 19617
Shares
17.01M
Value
11.09B
Filed
Jun 30, 2026
CAPITAL WORLD INVESTORS
CIK 1422849
Shares
16.60M
Value
10.60B
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
16.28M
Value
10.40B
Filed
Jun 30, 2026
INVESCO LTD.
CIK 914208
Shares
14.46M
Value
9.23B
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
13.11M
Value
8.37B
Filed
Jun 30, 2026
JANE STREET GROUP, LLC
CIK 1595888
Shares
12.78M
Value
8.16B
Filed
Jun 30, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
11.23M
Value
7.18B
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
8.76M
Value
5.59B
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
8.41M
Value
5.35B
Filed
Jun 30, 2026
MORGAN STANLEY
CIK 895421
Shares
8.15M
Value
5.20B
Filed
Jun 30, 2026
VIKING GLOBAL INVESTORS LP
CIK 1103804
Shares
7.40M
Value
240.89K
Filed
Sep 30, 2022
BANK OF AMERICA CORP /DE/
CIK 70858
Shares
6.49M
Value
4.15B
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
6.41M
Value
4.09B
Filed
Jun 30, 2026
WELLS FARGO & COMPANY/MN
CIK 72971
Shares
4.88M
Value
3.12B
Filed
Jun 30, 2026
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC
CIK 861177
Shares
4.74M
Value
3.03B
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 338.39M | 529.79K | Jun 30, 2026 |
| 2 | VANGUARD GROUP INC | 102909 | 42.35M | 7.30B | Dec 31, 2025 |
| 3 | BLACKROCK, INC. | 2012383 | 32.95M | 21.05B | Jun 30, 2026 |
| 4 | FMR LLC | 315066 | 25.98M | 16.60B | Jun 30, 2026 |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 22.51M | 14.38B | Jun 30, 2026 |
| 6 | JPMORGAN CHASE & CO | 19617 | 17.01M | 11.09B | Jun 30, 2026 |
| 7 | CAPITAL WORLD INVESTORS | 1422849 | 16.60M | 10.60B | Jun 30, 2026 |
| 8 | STATE STREET CORP | 93751 | 16.28M | 10.40B | Jun 30, 2026 |
| 9 | INVESCO LTD. | 914208 | 14.46M | 9.23B | Jun 30, 2026 |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 13.11M | 8.37B | Jun 30, 2026 |
| 11 | JANE STREET GROUP, LLC | 1595888 | 12.78M | 8.16B | Jun 30, 2026 |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 11.23M | 7.18B | Jun 30, 2026 |
| 13 | CITADEL ADVISORS LLC | 1423053 | 8.76M | 5.59B | Jun 30, 2026 |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 8.41M | 5.35B | Jun 30, 2026 |
| 15 | MORGAN STANLEY | 895421 | 8.15M | 5.20B | Jun 30, 2026 |
| 16 | VIKING GLOBAL INVESTORS LP | 1103804 | 7.40M | 240.89K | Sep 30, 2022 |
| 17 | BANK OF AMERICA CORP /DE/ | 70858 | 6.49M | 4.15B | Jun 30, 2026 |
| 18 | GOLDMAN SACHS GROUP INC | 886982 | 6.41M | 4.09B | Jun 30, 2026 |
| 19 | WELLS FARGO & COMPANY/MN | 72971 | 4.88M | 3.12B | Jun 30, 2026 |
| 20 | UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 861177 | 4.74M | 3.03B | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.