Security key
958102105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 252,121,402
- Total 13F value
- $16,422,593,268
- Share change
- +4,314,249
- Put/Call ratio
- 194%
- SEC-reported price per share
- $65.21
- Number of holders
- 670
- Value change
- +$331,163,722
- Number of buys
- 316
- Number of sells
- 281
- Shares outstanding
- 339,157,770
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
Q4 2021
Institutions
670
Top holders
10
WDC full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2022
Previous quarter: Q3 2021
WESTERN DIGITAL CORP SEC filings
WESTERN DIGITAL CORP company facts
WESTERN DIGITAL CORP 13D/G history
Broader feeds
Reporting periods
Holder history for CUSIP 958102105
Recent filing periods:
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
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
15/15
Latest evidence
30 Sep 2021
13F
Lead comparable stake: 9.9%
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC leads the comparable SEC ownership view at 9.9%.
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 VANGUARD GROUP INC's linked filing trail.
Comparable ownership
Top 5
VANGUARD GROUP INC
9.9%
BlackRock Finance, Inc.
7.2%
STATE STREET CORP
3.5%
FRANKLIN RESOURCES INC
2.7%
AMERIPRISE FINANCIAL INC
2.5%
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 |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
Company
|
9.9%
|
$1,888,943,000
33,468,170 shares
|
— | 30 Sep 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
7.2%
|
$1,379,279,000
24,437,998 shares
|
— | 30 Sep 2021 |
| STATE STREET CORP |
13F
Company
|
3.5%
|
$678,514,000
12,021,871 shares
|
— | 30 Sep 2021 |
| FRANKLIN RESOURCES INC |
13F
Company
|
2.7%
|
$525,040,000
9,302,622 shares
|
— | 30 Sep 2021 |
| AMERIPRISE FINANCIAL INC |
13F
Company
|
2.5%
|
$469,011,000
8,309,948 shares
|
— | 30 Sep 2021 |
| Clearbridge Investments, LLC |
13F
Company
|
2.3%
|
$432,947,000
7,670,933 shares
|
— | 30 Sep 2021 |
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 Q4 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
670
Shares
252,121,402
Rows available
670
| 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 Q4 2021 vs Q3 2021 Across Filers
Q3 2021 holders
603
Q4 2021 holders
670
Holder diff
67
| Investor | Q3 2021 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q3 2021 value | Q4 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend