Security key
958102105
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 345,386,023
- Total 13F value
- $41,434,144,320
- Share change
- -19,851,207
- Put/Call ratio
- 127%
- SEC-reported price per share
- $120.06
- Number of holders
- 951
- Value change
- -$1,537,382,736
- Number of buys
- 627
- Number of sells
- 300
- Shares outstanding
- 366,129,380
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2025
Institutions
951
Top holders
10
WDC full security history
Ownership snapshot
Full 13F holder table
WESTERN DIGITAL CORP SEC filings
WESTERN DIGITAL CORP company facts
WESTERN DIGITAL CORP 13D/G history
Broader feeds
Ownership snapshot
Top reported holders of WDC - WESTERN DIGITAL CORP - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
JPMORGAN CHASE & CO
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
15/15
Latest evidence
30 Jun 2025
13D/G
13F
Lead comparable stake: 5.3%
13D/G row: JPMORGAN CHASE & CO
Showing 1-6 of 15 holder rows.
Quick read
JPMORGAN CHASE & CO leads the comparable SEC ownership view at 5.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens JPMORGAN CHASE & CO's linked filing trail.
Comparable ownership
Top 5
JPMORGAN CHASE & CO
5.3%
VANGUARD GROUP INC
12%
BlackRock, Inc.
9.6%
FMR LLC
8.8%
BANK OF AMERICA CORP /DE/
7.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| JPMORGAN CHASE & CO |
13D/G
13F
Company
|
5.3%
|
$751,336,970
18,496,725 shares
|
-$195,562,309 | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
12%
|
$2,754,079,431
43,039,216 shares
|
— | 30 Jun 2025 |
| BlackRock, Inc. |
13F
Company
|
9.6%
|
$2,239,448,839
34,996,856 shares
|
— | 30 Jun 2025 |
| FMR LLC |
13F
Company
|
8.8%
|
$2,064,389,999
32,261,134 shares
|
— | 30 Jun 2025 |
| BANK OF AMERICA CORP /DE/ |
13F
Company
|
7.1%
|
$1,655,930,282
25,877,954 shares
|
— | 30 Jun 2025 |
| STATE STREET CORP |
13F
Company
|
4.1%
|
$971,657,563
15,184,522 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
951
Shares
345,386,023
Rows available
951
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
739
Q3 2025 holders
951
Holder diff
212
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|