WDC Western Digital Corporation
Western Digital Corporation (WDC) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| Soroban Capital Partners Long/Short | Sold Out | -1.15M | -100.0% | $732.1M | 0.0% | 82 |
| Capula Management Quant Macro | New | +280.3K | — | $179.0M | 2.5% | 76 |
| Hawk Ridge Capital Management Long/Short | Sold Out | -209.4K | -100.0% | $133.7M | 0.0% | 73 |
| Qube Research & Technologies Ltd Quant | New | +915.9K | — | $585.0M | 0.7% | 70 |
| Voloridge Investment Management Quant | New | +200.0K | — | $127.7M | 0.5% | 64 |
| CITADEL ADVISORS LLC Quant | Increased | +392.0K | +147.4% | $250.4M | 0.3% | 63 |
| Point72 Asset Management, L.P. | Reduced | -550.4K | -88.2% | $351.5M | 0.1% | 62 |
| Holocene Advisors, LP | Reduced | -683.3K | -89.7% | $436.5M | 0.1% | 59 |
| Weiss Asset Management Event Quant | New | +27.4K | — | $17.5M | 0.3% | 59 |
| Maverick Capital Long/Short Growth | New | +1.9K | — | $1.2M | 0.0% | 59 |
Most significant buyers
By move score, not size.
- Capula Management
- Qube Research & Technologies Ltd
- Voloridge Investment Management
- CITADEL ADVISORS LLC
- Weiss Asset Management
Most significant sellers
By move score, not size.
- Soroban Capital Partners
- Hawk Ridge Capital Management
- Point72 Asset Management, L.P.
- Holocene Advisors, LP
- Polar Asset Management Partners
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Soroban Capital Partners | 1 | 0 | 1.1M | -1.15M | -100.0% | 0.0% | Sold Out | 82 |
| Capula Management | 2 | 280.3K | 0 | +280.3K | — | 2.5% | New | 76 |
| Hawk Ridge Capital Management | 2 | 0 | 209.4K | -209.4K | -100.0% | 0.0% | Sold Out | 73 |
| Qube Research & Technologies Ltd | 2 | 915.9K | 0 | +915.9K | — | 0.7% | New | 70 |
| Voloridge Investment Management | 2 | 200.0K | 0 | +200.0K | — | 0.5% | New | 64 |
| CITADEL ADVISORS LLC | 1 | 657.9K | 265.9K | +392.0K | +147.4% | 0.3% | Increased | 63 |
| Point72 Asset Management, L.P. | 1 | 73.6K | 623.9K | -550.4K | -88.2% | 0.1% | Reduced | 62 |
| Holocene Advisors, LP | 2 | 78.5K | 761.9K | -683.3K | -89.7% | 0.1% | Reduced | 59 |
| Weiss Asset Management | 2 | 27.4K | 0 | +27.4K | — | 0.3% | New | 59 |
| Maverick Capital | 2 | 1.9K | 0 | +1.9K | — | 0.0% | New | 59 |
| Polar Asset Management Partners | 3 | 0 | 23.9K | -23.9K | -100.0% | 0.0% | Sold Out | 59 |
| Castle Hook Partners | 1 | 903.4K | 878.9K | +24.4K | +2.8% | 6.2% | Increased | 57 |
| Balyasny Asset Management L.P. | 2 | 156.5K | 616.6K | -460.1K | -74.6% | 0.2% | Reduced | 57 |
| Maple Rock Capital Partners | 2 | 1.4M | 1.4M | -42.6K | -3.0% | 17.2% | Reduced | 56 |
| Trexquant Investment | 3 | 26.4K | 0 | +26.4K | — | 0.1% | New | 55 |
| TWO SIGMA INVESTMENTS, LP | 2 | 48.6K | 2.0K | +46.6K | +2364.8% | 0.0% | Increased | 55 |
| XN | 1 | 219.2K | 275.5K | -56.3K | -20.4% | 3.7% | Reduced | 55 |
| Verition Fund Management | 2 | 93.2K | 36.3K | +56.9K | +157.0% | 0.6% | Increased | 54 |
| Jain Global | 3 | 4.8K | 0 | +4.8K | — | 0.0% | New | 54 |
| Rokos Capital Management | 2 | 60.0K | 198.5K | -138.5K | -69.8% | 1.0% | Reduced | 54 |
| Jericho Capital Asset Management | 1 | 644.8K | 581.6K | +63.2K | +10.9% | 3.4% | Increased | 53 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 537.5K | 1.1M | -608.7K | -53.1% | 0.5% | Reduced | 53 |
| Lighthouse Investment Partners | 3 | 0 | 1.8K | -1.8K | -100.0% | 0.0% | Sold Out | 53 |
| J. Goldman & Co. | 3 | 4.1K | 0 | +4.1K | — | 0.1% | New | 53 |
| Woodline Partners LP | 2 | 65.6K | 13.3K | +52.3K | +392.2% | 0.1% | Increased | 53 |
| Alyeska Investment Group, L.P. | 2 | 26.3K | 155.3K | -129.0K | -83.1% | 0.0% | Reduced | 52 |
| Parallax Volatility Advisers | 3 | 4.7K | 68.5K | -63.7K | -93.1% | 0.2% | Reduced | 52 |
| LMR Partners | 3 | 31.1K | 2.5K | +28.5K | +1122.6% | 0.2% | Increased | 52 |
| MARSHALL WACE, LLP | 2 | 400.3K | 931.3K | -531.0K | -57.0% | 0.3% | Reduced | 51 |
| Voleon Capital Management | 3 | 435 | 0 | +435 | — | 0.0% | New | 51 |
| Samlyn Capital | 2 | 87.6K | 189.3K | -101.7K | -53.7% | 0.9% | Reduced | 51 |
| D. E. Shaw & Co., Inc. | 1 | 1.9M | 2.7M | -786.4K | -29.3% | 0.8% | Reduced | 50 |
| Caxton Associates | 3 | 4.8K | 826 | +4.0K | +484.3% | 0.1% | Increased | 49 |
| CenterBook Partners | 4 | 1.1K | 0 | +1.1K | — | 0.0% | New | 49 |
| Quadrature Capital | 3 | 178.3K | 354.9K | -176.7K | -49.8% | 1.2% | Reduced | 48 |
| Moore Capital Management | 3 | 3.1K | 880 | +2.2K | +249.2% | 0.1% | Increased | 48 |
| WORLDQUANT MILLENNIUM ADVISORS LLC | 2 | 280.9K | 184.9K | +95.9K | +51.9% | 0.6% | Increased | 47 |
| Gotham Asset Management, LLC | 2 | 166.8K | 367.8K | -201.0K | -54.7% | 0.3% | Reduced | 47 |
| Capstone Investment Advisors | 3 | 952 | 7.8K | -6.9K | -87.8% | 0.0% | Reduced | 46 |
| Edgestream Partners | 4 | 7.8K | 2.2K | +5.6K | +251.6% | 0.2% | Increased | 46 |
| Schonfeld Strategic Advisors | 3 | 33.1K | 113.7K | -80.7K | -70.9% | 0.1% | Reduced | 45 |
| Bridgewater Associates | 1 | 172.4K | 249.0K | -76.6K | -30.8% | 0.5% | Reduced | 44 |
| Centiva Capital | 4 | 332 | 8.8K | -8.5K | -96.2% | 0.0% | Reduced | 44 |
| Whale Rock Capital Management | 1 | 400.7K | 412.0K | -11.3K | -2.7% | 2.1% | Reduced | 43 |
| Armistice Capital | 3 | 5.0K | 17.9K | -12.9K | -71.9% | 0.1% | Reduced | 43 |
| Walleye Capital | 3 | 14.7K | 49.2K | -34.5K | -70.1% | 0.1% | Reduced | 42 |
| Caption Management | 3 | 1.0K | 4.0K | -3.0K | -75.0% | 0.0% | Reduced | 40 |
| Y-Intercept | 4 | 6.4K | 23.6K | -17.3K | -73.0% | 0.1% | Reduced | 40 |
| Man Group | 3 | 35.8K | 81.6K | -45.8K | -56.2% | 0.0% | Reduced | 39 |
| Brevan Howard Capital Management | 3 | 4.1K | 15.6K | -11.5K | -73.7% | 0.0% | Reduced | 39 |
| Graham Capital Management | 3 | 2.1K | 7.2K | -5.1K | -71.1% | 0.1% | Reduced | 38 |
| MILLENNIUM MANAGEMENT LLC | 2 | 352.0K | 277.7K | +74.3K | +26.8% | 0.2% | Increased | 38 |
| Boothbay Fund Management | 4 | 18.6K | 44.5K | -25.9K | -58.3% | 0.2% | Reduced | 38 |
| AQR Capital Management | 3 | 2.9M | 3.5M | -518.6K | -15.0% | 0.7% | Reduced | 37 |
| Tudor Investment Corporation | 2 | 72.7K | 55.8K | +16.9K | +30.2% | 0.2% | Increased | 35 |
| Squarepoint Ops LLC | 2 | 201.8K | 258.1K | -56.3K | -21.8% | 0.3% | Reduced | 34 |
| Capital Fund Management | 3 | 119.8K | 100.6K | +19.3K | +19.2% | 0.6% | Increased | 33 |
| Engineers Gate | 4 | 38.7K | 68.1K | -29.4K | -43.2% | 0.3% | Reduced | 33 |
| ExodusPoint Capital Management | 3 | 32.0K | 42.3K | -10.2K | -24.2% | 0.2% | Reduced | 30 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 307.4K | 293.7K | +13.7K | +4.7% | 0.3% | Increased | 29 |
| Winton Group | 4 | 24.3K | 23.9K | +315 | +1.3% | 0.5% | Increased | 20 |
| Quantbot Technologies | 4 | 8.4K | 7.7K | +773 | +10.1% | 0.2% | Increased | 18 |
| Systematic Alpha Investments | 2 | 16.0K | 16.0K | 0 | +0.0% | 0.4% | Unchanged | 19 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.