Western Digital: which funds bought and sold
Institutions that bought and sold Western Digital shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 1,100 institutions that filed 13F reports for both quarters added to or opened positions in Western Digital, and 684 cut or closed them. Together they sold a net 16.7M shares, −5.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 9.2M shares (−11.0%); index fund managers were net sellers of 6.6M shares (−6.1%). 508 opened a new position and 86 sold out entirely.
Bought, Q2 2026 1,100 institutions, 508 of them new holders Sold, Q2 2026 684 institutions, 86 of them sold out
Net change, all compared −16.7M shares (−5.0%)
Net change, active managers −9.2M shares (−11.0%), 54 bought, 55 sold
Buyers versus sellers
1,100 bought 114 684 sold
Active managers and hedge funds 54 bought · 55 sold · −9.2M
Index fund managers 7 bought · 5 sold · −6.6M
Other institutions 1,039 bought · 624 sold · −855K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Capital World Investors Active manager | +4.7M +39.7% | 16.6M | $10.6B |
| UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC | +1.8M +63.4% | 4.7M | $3B |
| Capital International Investors Active manager | +1.8M New position | 1.8M | $1.2B |
| Invesco Ltd. | +1.8M +14.1% | 14.4M | $9.2B |
| Exchange Traded Concepts, LLC | +1.7M +3398.8% | 1.8M | $1.1B |
| Jane Street Group, LLC | +1.0M +2949.5% | 1.1M | $672M |
| Qube Research & Technologies Ltd Hedge fund | +916K New position | 916K | $585M |
| Nuveen, LLC | +860K +29.1% | 3.8M | $2.4B |
| Wellington Management Group LLP Active manager | +830K +2511.9% | 863K | $551M |
| State Street Corp Index funds | +811K +5.2% | 16.3M | $10.4B |
| Anther Capital Ltd | +699K +98.1% | 1.4M | $902M |
| Trivest Advisors Ltd | +638K +184.8% | 983K | $628M |
| Clear Street Group Inc. | +577K +239.7% | 818K | $522M |
| Vanguard Capital Management LLC Index funds | +476K +2.2% | 22.5M | $14.4B |
| National Bank Of Canada | +475K +109.2% | 910K | $581M |
| Citigroup Inc | +435K +75.9% | 1.0M | $643M |
| Franklin Resources Inc Active manager | +433K +153.1% | 715K | $457M |
| Bank Of Nova Scotia | +420K +115.7% | 783K | $500M |
| Bank Of New York Mellon Corp | +408K +16.3% | 2.9M | $1.9B |
| Citadel Advisors LLC Hedge fund | +392K +147.4% | 658K | $420M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Capital World Investors Active manager | +4.7M +39.7% | 16.6M | $10.6B |
| Capital International Investors Active manager | +1.8M New position | 1.8M | $1.2B |
| Qube Research & Technologies Ltd Hedge fund | +916K New position | 916K | $585M |
| Wellington Management Group LLP Active manager | +830K +2511.9% | 863K | $551M |
| Franklin Resources Inc Active manager | +433K +153.1% | 715K | $457M |
| Citadel Advisors LLC Hedge fund | +392K +147.4% | 658K | $420M |
| Federated Hermes, Inc. Active manager | +218K +953.1% | 241K | $154M |
| Voloridge Investment Management, LLC Hedge fund | +200K New position | 200K | $128M |
| Arrowstreet Capital, Limited Partnership Hedge fund | +183K New position | 183K | $117M |
| Neuberger Berman Group LLC Active manager | +165K +36.2% | 621K | $397M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | −5.6M −17.8% | 26.0M | $16.6B |
| WCM Investment Management, LLC Active manager | −4.9M −75.1% | 1.6M | $1.1B |
| Vanguard Portfolio Management LLC Index funds | −4.1M −23.7% | 13.1M | $8.4B |
| UBS Group AG | −2.9M −69.9% | 1.3M | $804M |
| Blackrock, Inc. Index funds | −2.8M −7.9% | 33.0M | $21B |
| Ameriprise Financial Inc | −2.4M −41.2% | 3.4M | $2.2B |
| Bank Of America Corp | −2.0M −23.6% | 6.5M | $4.1B |
| Amundi | −1.2M −40.7% | 1.8M | $1.2B |
| Soroban Capital Partners LP Hedge fund | −1.1M Sold out | 0 | — |
| Geode Capital Management, LLC Index funds | −1.1M −11.2% | 8.4M | $5.4B |
| D. E. Shaw & Co., Inc. Hedge fund | −786K −29.3% | 1.9M | $1.2B |
| Holocene Advisors, LP Hedge fund | −683K −89.7% | 79K | $50.2M |
| Renaissance Technologies LLC Hedge fund | −609K −53.1% | 537K | $343M |
| Price T Rowe Associates Inc Active manager | −571K −21.6% | 2.1M | $1.3B |
| Point72 Asset Management, L.P. Hedge fund | −550K −88.2% | 74K | $47M |
| Marshall Wace, LLP Hedge fund | −531K −57.0% | 400K | $256M |
| Amf Tjanstepension AB | −523K −38.1% | 851K | $543M |
| AQR Capital Management LLC Hedge fund | −519K −15.0% | 2.9M | $1.9B |
| Jpmorgan Chase & Co | −504K −2.9% | 17.0M | $11.1B |
| Capital Research Global Investors Active manager | −493K −14.9% | 2.8M | $1.8B |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | −5.6M −17.8% | 26.0M | $16.6B |
| WCM Investment Management, LLC Active manager | −4.9M −75.1% | 1.6M | $1.1B |
| Soroban Capital Partners LP Hedge fund | −1.1M Sold out | 0 | — |
| D. E. Shaw & Co., Inc. Hedge fund | −786K −29.3% | 1.9M | $1.2B |
| Holocene Advisors, LP Hedge fund | −683K −89.7% | 79K | $50.2M |
| Renaissance Technologies LLC Hedge fund | −609K −53.1% | 537K | $343M |
| Price T Rowe Associates Inc Active manager | −571K −21.6% | 2.1M | $1.3B |
| Point72 Asset Management, L.P. Hedge fund | −550K −88.2% | 74K | $47M |
| Marshall Wace, LLP Hedge fund | −531K −57.0% | 400K | $256M |
| AQR Capital Management LLC Hedge fund | −519K −15.0% | 2.9M | $1.9B |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Capital International InvestorsActive manager | 1.8M | $1.2B |
| Qube Research & Technologies LtdHedge fund | 916K | $585M |
| Voloridge Investment Management, LLCHedge fund | 200K | $128M |
| Cardano Risk Management B.V. | 188K | $120M |
| Arrowstreet Capital, Limited PartnershipHedge fund | 183K | $117M |
| Skandinaviska Enskilda Banken AB (Publ) | 94K | $60.2M |
| Mizuho Markets Cayman LP | 70K | $44.9M |
| Tb Alternative Assets Ltd. | 64K | $40.9M |
| USS Investment Management Ltd | 61K | $38.8M |
| Silvant Capital Management LLC | 58K | $36.8M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Soroban Capital Partners LPHedge fund | 1.1M | $310M |
| Employees Provident Fund Board | 405K | $110M |
| Capitolis Liquid Global Markets LLC | 211K | $57.1M |
| Hawk Ridge Capital Management LPHedge fund | 209K | $56.6M |
| Walleye Trading LLC | 206K | $55.9M |
| Talos Eurisko Asset Management LP | 174K | $47M |
| Atalan Capital Partners, LP | 135K | $36.4M |
| Migdal Insurance & Financial Holdings Ltd. | 134K | $36.2M |
| Susquehanna Portfolio Strategies, LLC | 125K | $33.7M |
| Commonwealth Of Pennsylvania Public School Empls Retrmt Sys | 79K | $21.4M |
Who holds the shares
- Institutions reporting
- 1,841
- Ten largest holders
- 54.3% of 13F-reported shares
- Index fund managers
- 31.7% of 13F-reported shares
- Active managers and hedge funds
- 23.2% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 54 | 55 | 18 | 5 | −9.2M | −11.0% |
| Index fund managers | 7 | 5 | 0 | 0 | −6.6M | −6.1% |
| Other institutions | 1,039 | 624 | 490 | 81 | −855K | −0.6% |