WDC
WESTERN DIGITAL CORPORATIONMarquee-fund ownership over time
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Bridgewater Associates re-entered | Q3 2013 | 52Q | $42 | $459 | +985% |
| Citadel Advisors re-entered | Q3 2024(8Q snapshot) | 7Q | $46 | $459 | +891% |
| Two Sigma Investments re-entered | Q3 2024(8Q snapshot) | 7Q | $46 | $459 | +891% |
| D.E. Shaw re-entered | Q3 2024(8Q snapshot) | 7Q | $46 | $459 | +891% |
| AQR Capital Management | Q3 2024(8Q snapshot) | 7Q | $46 | $459 | +891% |
| Millennium Management re-entered | Q3 2024(8Q snapshot) | 7Q | $46 | $459 | +891% |
| Point72 Asset Management re-entered | Q3 2024(8Q snapshot) | 7Q | $46 | $459 | +891% |
| Renaissance Technologies | Q4 2024(8Q snapshot) | 6Q | $47 | $459 | +872% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Soros Fund Management | Q2 2025 | Q4 2025 | → $158 | +218% |
| Glenview Capital | Q4 2024 | Q4 2025 | → $158 | +231% |
| Maverick Capital 6× in & out | Q4 2024 | Q3 2025 | → $76 | +60% |
| Duquesne Family Office 2× in & out | Q4 2024 | Q2 2025 | → $50 | +4% |
| Viking Global Investors 4× in & out | Q3 2022 | Q1 2023 | → $33 | -12% |
| Third Point | Q2 2022 | Q3 2022 | → $37 | -14% |
| Scion Asset Management 2× in & out | Q4 2020 | Q2 2021 | → $58 | +75% |
| Coatue Management 2× in & out | Q4 2018 | Q1 2019 | → $34 | +8% |
| Appaloosa | Q3 2016 | Q4 2018 | → $32 | +8% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at WESTERN DIGITAL CORP. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Jun 5, 2026 — the most recent Form 4 on file — not from today.
- Form 40001266824-26-000121Jun 5, 2026
- Form 40001266824-26-000120Jun 5, 2026
- Form 40001266824-26-000119Jun 5, 2026
- Form 40001266824-26-000115Jun 2, 2026
- Form 40001266824-26-000113May 29, 2026
- Form 40001266824-26-000111May 28, 2026
- Form 40001266824-26-000107May 27, 2026
- Form 40001266824-26-000106May 27, 2026
- Form 40001266824-26-000105May 27, 2026
- Form 40001266824-26-000104May 27, 2026
- Form 40001266824-26-000099May 22, 2026
- Form 40001266824-26-000098May 22, 2026
- Form 40001266824-26-000097May 22, 2026
- Form 40001266824-26-000096May 22, 2026
- Form 40001266824-26-000095May 22, 2026
Fundamentals
XBRL · WESTERN DIGITAL CORPORATIONAnnual figures sourced directly from WESTERN DIGITAL CORPORATION's 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for WESTERN DIGITAL CORP — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-K/AMaterial event (amended)Jun 8, 2026
- 8-KMaterial eventJun 3, 2026
- 8-KMaterial eventMay 28, 2026
- 10-QQuarterly reportMay 1, 2026
- 8-KMaterial eventApr 30, 2026
- 8-KMaterial eventFeb 24, 2026
- 8-KMaterial eventFeb 18, 2026
- 8-KMaterial eventFeb 9, 2026
- 10-QQuarterly reportJan 30, 2026
- 8-KMaterial eventJan 29, 2026
- 8-KMaterial eventNov 24, 2025
- 8-KMaterial eventNov 3, 2025
- 10-QQuarterly reportOct 31, 2025
- 8-KMaterial eventOct 30, 2025
- DEF 14AProxy statementOct 6, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Bridgewater Associates | Q4 2025 | open | $157 | $562 | +258% |
| Point72 Asset Management | Q3 2025 | Q4 2025 | $0.00 | — | +0% |
| Point72 Asset Management | Q3 2025 | open | $76 | $459 | +503% |
| Soros Fund Management | Q2 2025 | Q4 2025 | $50 | $158 | +218% |
| Citadel Advisors | Q1 2025 | open | $0.00 | — | +0% |
| Two Sigma Investments | Q1 2025 | open | $0.00 | — | +0% |
| D.E. Shaw | Q1 2025 | open | $0.00 | — | +0% |
| Millennium Management | Q1 2025 | open | $0.00 | — | +0% |
| Point72 Asset Management | Q1 2025 | Q2 2025 | $51 | $50 | -4% |
| Glenview Capital | Q4 2024 | Q4 2025 | $48 | $158 | +231% |
| Maverick Capital | Q4 2024 | Q3 2025 | $48 | $76 | +60% |
| Duquesne Family Office | Q4 2024 | Q2 2025 | $48 | $50 | +4% |
| Renaissance Technologies | Q4 2024 | open | $47 | $459 | +872% |
| Citadel Advisors | Q3 2024 | open | $46 | $459 | +891% |
| Two Sigma Investments | Q3 2024 | open | $46 | $459 | +891% |
| D.E. Shaw | Q3 2024 | open | $46 | $459 | +891% |
| AQR Capital Management | Q3 2024 | open | $46 | $459 | +891% |
| Millennium Management | Q3 2024 | open | $46 | $459 | +891% |
| Point72 Asset Management | Q3 2024 | Q4 2024 | $46 | $48 | +3% |
| Maverick Capital | Q4 2023 | Q1 2024 | $35 | $42 | +22% |
| Duquesne Family Office | Q4 2023 | Q3 2024 | $35 | $46 | +34% |
| Viking Global Investors | Q3 2022 | Q1 2023 | $37 | $33 | -12% |
| Third Point | Q2 2022 | Q3 2022 | $44 | $37 | -14% |
| Maverick Capital | Q2 2022 | Q3 2022 | $44 | $37 | -14% |
| Bridgewater Associates | Q2 2022 | Q1 2023 | $44 | $32 | -26% |
| Viking Global Investors | Q1 2022 | Q2 2022 | $40 | $44 | +10% |
| Maverick Capital | Q3 2021 | Q4 2021 | $47 | $44 | -5% |
| Bridgewater Associates | Q2 2021 | Q3 2021 | $54 | $48 | -12% |
| Scion Asset Management | Q4 2020 | Q2 2021 | $33 | $58 | +75% |
| Maverick Capital | Q1 2020 | Q2 2020 | $51 | $30 | -43% |
| Scion Asset Management | Q1 2019 | Q4 2019 | $34 | $37 | +8% |
| Coatue Management | Q4 2018 | Q1 2019 | $32 | $34 | +8% |
| Viking Global Investors | Q2 2018 | Q3 2018 | $58 | $45 | -21% |
| Coatue Management | Q2 2018 | Q3 2018 | $56 | $45 | -19% |
| Maverick Capital | Q1 2018 | Q2 2018 | $57 | $58 | +1% |
| Viking Global Investors | Q1 2017 | Q3 2017 | $52 | $57 | +10% |
| Appaloosa | Q3 2016 | Q4 2018 | $29 | $32 | +8% |
| Bridgewater Associates | Q4 2014 | Q1 2016 | $61 | $26 | -58% |
| Bridgewater Associates | Q3 2013 | Q2 2014 | $42 | $53 | +26% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.