VANGUARD GROUP INC
Rank #1
12.3%
- Shares
- 42.35M
- Change
- -933.73K
- Change %
- -2.16%
- Filing
- Dec 31, 2025
Decreased
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NASDAQ · TECHNOLOGY · Holders
Western Digital Corporation (WDC) Institutional Ownership & Insider Trading History
Top WDC institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Section freshness
Price Jun 15, 10:33 AM EDT · Statements Mar 30, 8:00 PM EDT
Source timingDetailsHide
Data freshness
Prices update fastest. Fundamentals, analyst data, and news update on their own schedules, so check these timestamps before comparing signals.
Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
PriceLive
Last traded •
Source: Market data provider
Fundamentalsevery 1 day
Provider checked •
Source: Market data provider
Analystevery 1 day
Provider checked •
Source: Market data provider
Newsevery 4 hr
Latest item •
Source: Market data provider
Ownership read
WDC insider sentiment: Net selling.
VANGUARD GROUP INC is the largest loaded institutional holder. 103 sale rows and 0 purchase rows are visible in the loaded Form 4 history. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
WDC
Purchases—
Sales53.93K
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
42.35M
VANGUARD GROUP INC
Insider stance
Net selling
$26.1M sold / — bought
Latest filing
Jun 9, 2026
Most recent holder or insider filing date
Rows loaded
240
120 holder / 120 insider
- Holder rows
- 120
- Market data source
- Latest filing
- Jun 9, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 60
- 58 decreased in loaded rows
- Insider rows
- 120
- Market data source
Top 120 institutional holders
Western Digital Corporation (WDC) institutional ownership
Ranked by reported share count, with position changes and latest filing dates where ownership data supplies them.
BLACKROCK
Rank #2
10.4%
- Shares
- 35.77M
- Change
- +259.70K
- Change %
- +73.00%
- Filing
- Mar 31, 2026
Increased
FMR LLC
Rank #3
9.16%
- Shares
- 31.62M
- Change
- -2.17M
- Change %
- -6.42%
- Filing
- Mar 31, 2026
Decreased
VANGUARD CAPITAL MANAGEMENT LLC
Rank #4
6.38%
- Shares
- 22.03M
- Change
- +22.03M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
JPMORGAN CHASE & CO
Rank #5
5.07%
- Shares
- 17.51M
- Change
- +3.22M
- Change %
- +22.50%
- Filing
- Mar 31, 2026
Increased
VANGUARD PORTFOLIO MANAGEMENT LLC
Rank #6
4.97%
- Shares
- 17.17M
- Change
- +17.17M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
STATE STREET CORP
Rank #7
4.48%
- Shares
- 15.47M
- Change
- -230.19K
- Change %
- -1.47%
- Filing
- Mar 31, 2026
Decreased
CAPITAL WORLD INVESTORS
Rank #8
3.44%
- Shares
- 11.88M
- Change
- +10.82M
- Change %
- +10.17%
- Filing
- Mar 31, 2026
Increased
GEODE CAPITAL MANAGEMENT
Rank #9
2.74%
- Shares
- 9.48M
- Change
- +194.77K
- Change %
- +2.10%
- Filing
- Mar 31, 2026
Increased
BANK OF AMERICA CORP
Rank #10
2.46%
- Shares
- 8.49M
- Change
- -3.56M
- Change %
- -29.52%
- Filing
- Mar 31, 2026
Decreased
MORGAN STANLEY
Rank #11
2.30%
- Shares
- 7.94M
- Change
- -1.01M
- Change %
- -11.24%
- Filing
- Mar 31, 2026
Decreased
WCM INVESTMENT MANAGEMENT
Rank #12
1.90%
- Shares
- 6.56M
- Change
- -129.40K
- Change %
- -1.93%
- Filing
- Mar 31, 2026
Decreased
AMERIPRISE FINANCIAL INC
Rank #13
1.67%
- Shares
- 5.76M
- Change
- -2.76M
- Change %
- -32.37%
- Filing
- Mar 31, 2026
Decreased
INVESCO LTD.
Rank #14
1.60%
- Shares
- 5.53M
- Change
- +75.62K
- Change %
- +1.39%
- Filing
- Mar 31, 2026
Increased
GOLDMAN SACHS GROUP INC
Rank #15
1.57%
- Shares
- 5.41M
- Change
- +847.17K
- Change %
- +18.58%
- Filing
- Mar 31, 2026
Increased
NORGES BANK
Rank #16
1.33%
- Shares
- 4.58M
- Change
- +1.13M
- Change %
- +32.76%
- Filing
- Dec 31, 2025
Increased
UBS GROUP AG
Rank #17
1.21%
- Shares
- 4.18M
- Change
- -368.37K
- Change %
- -8.10%
- Filing
- Mar 31, 2026
Decreased
NORTHERN TRUST CORP
Rank #18
1.04%
- Shares
- 3.61M
- Change
- -65.39K
- Change %
- -1.78%
- Filing
- Mar 31, 2026
Decreased
AQR CAPITAL MANAGEMENT LLC
Rank #19
1.00%
- Shares
- 3.46M
- Change
- +486.86K
- Change %
- +16.38%
- Filing
- Mar 31, 2026
Increased
CAPITAL RESEARCH GLOBAL INVESTORS
Rank #20
0.96%
- Shares
- 3.31M
- Change
- +3.31M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
| # | Institution | % held | Shares | Change | Change % | Filing date |
|---|---|---|---|---|---|---|
| 1 | 12.3% | 42.35M | -933.73K Decreased | -2.16% | Dec 31, 2025 | |
| 2 | 10.4% | 35.77M | +259.70K Increased | +73.00% | Mar 31, 2026 | |
| 3 | 9.16% | 31.62M | -2.17M Decreased | -6.42% | Mar 31, 2026 | |
| 4 | 6.38% | 22.03M | +22.03M Initiated | — | Mar 31, 2026 | |
| 5 | 5.07% | 17.51M | +3.22M Increased | +22.50% | Mar 31, 2026 | |
| 6 | 4.97% | 17.17M | +17.17M Initiated | — | Mar 31, 2026 | |
| 7 | 4.48% | 15.47M | -230.19K Decreased | -1.47% | Mar 31, 2026 | |
| 8 | 3.44% | 11.88M | +10.82M Increased | +10.17% | Mar 31, 2026 | |
| 9 | 2.74% | 9.48M | +194.77K Increased | +2.10% | Mar 31, 2026 | |
| 10 | 2.46% | 8.49M | -3.56M Decreased | -29.52% | Mar 31, 2026 | |
| 11 | 2.30% | 7.94M | -1.01M Decreased | -11.24% | Mar 31, 2026 | |
| 12 | WCM INVESTMENT MANAGEMENT | 1.90% | 6.56M | -129.40K Decreased | -1.93% | Mar 31, 2026 |
| 13 | AMERIPRISE FINANCIAL INC | 1.67% | 5.76M | -2.76M Decreased | -32.37% | Mar 31, 2026 |
| 14 | 1.60% | 5.53M | +75.62K Increased | +1.39% | Mar 31, 2026 | |
| 15 | 1.57% | 5.41M | +847.17K Increased | +18.58% | Mar 31, 2026 | |
| 16 | 1.33% | 4.58M | +1.13M Increased | +32.76% | Dec 31, 2025 | |
| 17 | 1.21% | 4.18M | -368.37K Decreased | -8.10% | Mar 31, 2026 | |
| 18 | 1.04% | 3.61M | -65.39K Decreased | -1.78% | Mar 31, 2026 | |
| 19 | AQR CAPITAL MANAGEMENT LLC | 1.00% | 3.46M | +486.86K Increased | +16.38% | Mar 31, 2026 |
| 20 | 0.96% | 3.31M | +3.31M Initiated | — | Mar 31, 2026 |
Showing 20 of 120 matching institutional rows.Load more institutions
Recent insider transactions
Western Digital Corporation (WDC) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
COLE, MARTIN I
Director
- Shares
- 80
- % company
- <0.01%
- Price
- $503.80
- Value
- $40,304
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 128
- % company
- <0.01%
- Price
- $502.87
- Value
- $64,367
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 64
- % company
- <0.01%
- Price
- $501.72
- Value
- $32,110
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 48
- % company
- <0.01%
- Price
- $519.25
- Value
- $24,924
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 216
- % company
- <0.01%
- Price
- $517.59
- Value
- $111,799
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 112
- % company
- <0.01%
- Price
- $516.72
- Value
- $57,872
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 392
- % company
- <0.01%
- Price
- $515.40
- Value
- $202,036
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 296
- % company
- <0.01%
- Price
- $514.09
- Value
- $152,172
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 16
- % company
- <0.01%
- Price
- $525.56
- Value
- $8,409
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 48
- % company
- <0.01%
- Price
- $524.72
- Value
- $25,187
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 48
- % company
- <0.01%
- Price
- $528.07
- Value
- $25,348
Filed Jun 9, 2026
COLE, MARTIN I
Director
- Shares
- 64
- % company
- <0.01%
- Price
- $530.27
- Value
- $33,937
Filed Jun 9, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 80 | $503.80 | $40,304 | Jun 9, 2026 |
| 2 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 128 | $502.87 | $64,367 | Jun 9, 2026 |
| 3 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 64 | $501.72 | $32,110 | Jun 9, 2026 |
| 4 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 48 | $519.25 | $24,924 | Jun 9, 2026 |
| 5 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 216 | $517.59 | $111,799 | Jun 9, 2026 |
| 6 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 112 | $516.72 | $57,872 | Jun 9, 2026 |
| 7 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 392 | $515.40 | $202,036 | Jun 9, 2026 |
| 8 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 296 | $514.09 | $152,172 | Jun 9, 2026 |
| 9 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 16 | $525.56 | $8,409 | Jun 9, 2026 |
| 10 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 48 | $524.72 | $25,187 | Jun 9, 2026 |
| 11 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 48 | $528.07 | $25,348 | Jun 9, 2026 |
| 12 | COLE, MARTIN I Director | <0.01% | Sale to issuer | 64 | $530.27 | $33,937 | Jun 9, 2026 |
Showing 12 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest WDC shareholders?
VANGUARD GROUP INC is the largest institutional holder in the loaded WDC ownership dataset, with 42.35 million shares, or about 12.26% of shares outstanding. The table ranks additional institutions by reported share count.
What is institutional ownership of WDC?
The current TECHi snapshot has 120 loaded institutional rows for Western Digital Corporation. 60 rows are marked increased or initiated, while 58 rows are marked decreased, with the latest holder filing dated Mar 31, 2026.
Where can I see Western Digital Corporation insider transactions?
The insider transaction table currently shows 120 loaded Form 4 rows for WDC, with the latest insider filing dated Jun 9, 2026. It separates purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are not confused with open-market trades.
Are WDC insiders buying or selling?
The loaded WDC Form 4 rows currently read Net selling: 103 sale rows and 0 purchase rows. Awards, gifts, conversions, and tax withholding are shown separately because they do not carry the same signal as open-market buying or selling.
Who is the most active WDC insider in the loaded filings?
SENNESAEL, KRIS is the most active insider by absolute share movement in the loaded WDC rows, with 18,657 shares moving across the visible filing history. Review the action labels before treating that activity as buying or selling.