WDC Institutional Ownership
Who owns Western Digital Corp and what the big funds did with it last quarter, from every SEC 13F filing. 1,862 funds reported holding WDC at Jun 30, 2026, together owning 86.6% of the company.
- ▲1,117 buying vs 696 selling
- ▼Held by funds -14.4 pts
- ▲Funds holding +425
- ▼Superinvestors: 2 added, 3 cut
- ▼Put/call 1.94 to 3.06
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 1,862 | 1,437 | +29.6% |
| In funds' top 10 | 64 | 37 | +73.0% |
| 13F shares | 324M | 378M | −14.3% |
| Held by funds | 86.6% | 101.0% | −14.4 pts |
| New positions | 517 | 341 | +51.6% |
| Increased | 600 | 444 | +35.1% |
| Reduced | 602 | 496 | +21.4% |
| Sold out | 94 | 107 | −12.1% |
| Calls (shares) | 1.7M | 2.6M | −34.3% |
| Puts (shares) | 4.9M | 4.1M | +20.4% |
| Put/call ratio | 3.06 | 1.94 | +57.7% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in WDC
All superinvestors →
Who owns WDC
share of fund held shares- Index and passive funds38.0%
- Active managers and hedge funds35.6%
- Banks and brokers22.2%
- Pensions, insurers and other4.2%
The top 10 holders own 54.1% of all WDC shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
732 funds changed their position- WT Asset Management LtdSold out−784K sh
- Amanah Holdings TrustSold out−315K sh
- Exchange Traded Concepts, LLCAdded+326K sh
- Robeco Institutional Asset Management B.V.Trimmed−233K sh
- Braun Stacey Associates IncSold out−155K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 8.80% | 33M | $21B | −2.8M |
| 2 | Fmr LLC | 6.94% | 26M | $16.6B | −5.6M |
| 3 | Vanguard Capital Management LLC | 6.01% | 22.5M | $14.4B | +476K |
| 4 | Jpmorgan Chase & Co | 4.54% | 17M | $11.1B | −504K |
| 5 | Capital World Investors | 4.43% | 16.6M | $10.6B | +4.7M |
| 6 | State Street Corp | 4.35% | 16.3M | $10.4B | +811K |
| 7 | Invesco Ltd. | 3.86% | 14.4M | $9.2B | +1.8M |
| 8 | Vanguard Portfolio Management LLC | 3.50% | 13.1M | $8.4B | −4.1M |
| 9 | Geode Capital Management, LLC | 2.25% | 8.4M | $5.4B | −1.1M |
| 10 | Morgan Stanley | 2.18% | 8.1M | $5.2B | +209K |
- Capital World Investors+4.7M sh+$3B
- Norges Bank+4.6M sh+$3B
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME+1.8M sh+$1.2B
- Capital International Investors+1.8M sh+$1.2B
- Invesco Ltd.+1.8M sh+$1.1B
- Exchange Traded Concepts, LLC+1.7M sh+$1.1B
- Jane Street Group, LLC+1M sh+$650M
- Qube Research & Technologies Ltd+916K sh+$585M
- Fmr LLC−5.6M sh−$3.6B
- Wcm Investment Management, LLC−4.9M sh−$3.2B
- Vanguard Portfolio Management LLC−4.1M sh−$2.6B
- UBS Group AG−2.9M sh−$1.9B
- BlackRock, Inc.−2.8M sh−$1.8B
- Ameriprise Financial Inc−2.4M sh−$1.5B
- Bank of America Corp /de/−2M sh−$1.3B
- Amundi−1.2M sh−$795M
WDC institutional ownership FAQ
Who owns the most WDC stock?
In Q2 2026 13F filings the largest holder of WDC was BlackRock, Inc., followed by Fmr LLC and Vanguard Capital Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of WDC is owned by institutions?
Funds that file 13F reports held 86.6% of WDC's shares at Jun 30, 2026, compared with 101.0% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying WDC?
In Q2 2026, 1,117 funds bought WDC (517 of them new positions) and 696 sold (94 sold out completely). Among well known investors, 2 added and 3 cut. Our fund sentiment for WDC is neutral.
What is WDC's institutional put/call ratio?
Funds reported $3.4B of WDC puts against $1.1B of calls, a put/call ratio of 3.06 (1.94 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this WDC ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.