Rubrik, Inc.: which funds bought and sold
Institutions that bought and sold Rubrik 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, 397 institutions that filed 13F reports for both quarters added to or opened positions in Rubrik, and 187 cut or closed them. Together they added a net 10.6M shares, +9.2% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 3.1M shares (+9.3%); index fund managers were net buyers of 2.6M shares (+8.2%). 176 opened a new position and 71 sold out entirely.
Bought, Q2 2026 397 institutions, 176 of them new holders Sold, Q2 2026 187 institutions, 71 of them sold out
Net change, all compared +10.6M shares (+9.2%)
Net change, active managers +3.1M shares (+9.3%), 32 bought, 35 sold
Buyers versus sellers
397 bought 48 187 sold
Active managers and hedge funds 32 bought · 35 sold · +3.1M
Index fund managers 10 bought · 1 sold · +2.6M
Other institutions 355 bought · 151 sold · +4.9M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| AQR Capital Management LLC Hedge fund | +7.7M +348.7% | 9.9M | $780M |
| Anatole Investment Management Ltd | +2.2M New position | 2.2M | $176M |
| Blackrock, Inc. Index funds | +1.2M +13.3% | 10.0M | $802M |
| First Trust Advisors LP | +1.1M +22.2% | 6.0M | $480M |
| FMR LLC Active manager | +941K +11.4% | 9.2M | $739M |
| Westfield Capital Management Co LP Active manager | +937K New position | 937K | $75.2M |
| UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC | +885K +103.6% | 1.7M | $140M |
| BAMCO Inc Active manager | +838K +301.9% | 1.1M | $89.5M |
| Legal & General Group PLC | +797K +43.7% | 2.6M | $210M |
| Driehaus Capital Management LLC Active manager | +492K New position | 492K | $39.5M |
| Jpmorgan Chase & Co | +423K +23.1% | 2.3M | $173M |
| Deutsche Bank Ag\ | +341K +2810.7% | 353K | $28.3M |
| Vanguard Capital Management LLC Index funds | +330K +5.0% | 6.9M | $553M |
| Barclays PLC | +329K +71.9% | 787K | $63.1M |
| Assenagon Asset Management S.A. | +309K +122.2% | 561K | $45M |
| Bank Of America Corp | +303K +29.6% | 1.3M | $106M |
| State Street Corp Index funds | +295K +11.5% | 2.9M | $230M |
| Price T Rowe Associates Inc Active manager | +281K +31.6% | 1.2M | $93.8M |
| Vanguard Portfolio Management LLC Index funds | +272K +3.4% | 8.3M | $666M |
| BNP Paribas Financial Markets | +269K +21.8% | 1.5M | $120M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| AQR Capital Management LLC Hedge fund | +7.7M +348.7% | 9.9M | $780M |
| FMR LLC Active manager | +941K +11.4% | 9.2M | $739M |
| Westfield Capital Management Co LP Active manager | +937K New position | 937K | $75.2M |
| BAMCO Inc Active manager | +838K +301.9% | 1.1M | $89.5M |
| Driehaus Capital Management LLC Active manager | +492K New position | 492K | $39.5M |
| Price T Rowe Associates Inc Active manager | +281K +31.6% | 1.2M | $93.8M |
| Wellington Management Group LLP Active manager | +240K +48.8% | 732K | $58.7M |
| Baillie Gifford & Co Active manager | +223K +135.0% | 388K | $31.2M |
| Walleye Capital LLC Hedge fund | +160K +179.6% | 249K | $20M |
| Capital International Investors Active manager | +144K +23.4% | 762K | $61.2M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Pointstate Capital LP Hedge fund | −1.8M −49.1% | 1.9M | $149M |
| Two Sigma Investments, LP Hedge fund | −1.8M −75.7% | 561K | $45M |
| Greenvale Capital LLP | −1.0M Sold out | 0 | — |
| Pictet Asset Management Holding SA | −957K −28.8% | 2.4M | $190M |
| Champlain Investment Partners, LLC Active manager | −804K −63.8% | 456K | $36.6M |
| Qube Research & Technologies Ltd Hedge fund | −733K Sold out | 0 | — |
| Citadel Advisors LLC Hedge fund | −731K Sold out | 0 | — |
| SG Americas Securities, LLC | −728K −62.2% | 443K | $35.6M |
| UBS Group AG | −700K −35.8% | 1.3M | $101M |
| Capital World Investors Active manager | −664K Sold out | 0 | — |
| Bain Capital Venture Investors, LLC | −660K Sold out | 0 | — |
| Susquehanna International Group, LLP | −575K −63.4% | 331K | $26.6M |
| Atreides Management, LP Hedge fund | −566K Sold out | 0 | — |
| Wells Fargo & Company | −544K −46.0% | 637K | $51.2M |
| Alkeon Capital Management LLC Hedge fund | −500K Sold out | 0 | — |
| Trexquant Investment LP Hedge fund | −444K Sold out | 0 | — |
| Bienville Capital Management, LLC | −351K −74.4% | 121K | $9.7M |
| Bank Of Nova Scotia | −348K −47.8% | 379K | $30.4M |
| Marshall Wace, LLP Hedge fund | −321K −88.4% | 42K | $3.4M |
| Junto Capital Management LP Hedge fund | −294K Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Pointstate Capital LP Hedge fund | −1.8M −49.1% | 1.9M | $149M |
| Two Sigma Investments, LP Hedge fund | −1.8M −75.7% | 561K | $45M |
| Champlain Investment Partners, LLC Active manager | −804K −63.8% | 456K | $36.6M |
| Qube Research & Technologies Ltd Hedge fund | −733K Sold out | 0 | — |
| Citadel Advisors LLC Hedge fund | −731K Sold out | 0 | — |
| Capital World Investors Active manager | −664K Sold out | 0 | — |
| Atreides Management, LP Hedge fund | −566K Sold out | 0 | — |
| Alkeon Capital Management LLC Hedge fund | −500K Sold out | 0 | — |
| Trexquant Investment LP Hedge fund | −444K Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −321K −88.4% | 42K | $3.4M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Anatole Investment Management Ltd | 2.2M | $176M |
| Westfield Capital Management Co LPActive manager | 937K | $75.2M |
| Driehaus Capital Management LLCActive manager | 492K | $39.5M |
| Teacher Retirement System Of Texas | 238K | $19.1M |
| HRT Financial LP | 160K | $12.8M |
| Pathway Capital Management, LP | 160K | $12.8M |
| Corient Private Wealth LP | 145K | $11.6M |
| Ofi Invest Asset Management | 152K | $10.7M |
| Susquehanna Fundamental Investments, LLC | 126K | $10.1M |
| Daventry Group, LP | 113K | $9.1M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Greenvale Capital LLP | 1.0M | $49.9M |
| Qube Research & Technologies LtdHedge fund | 733K | $35.9M |
| Citadel Advisors LLCHedge fund | 731K | $35.8M |
| Capital World InvestorsActive manager | 664K | $32.5M |
| Bain Capital Venture Investors, LLC | 660K | $32.3M |
| Atreides Management, LPHedge fund | 566K | $27.7M |
| Alkeon Capital Management LLCHedge fund | 500K | $24.5M |
| Trexquant Investment LPHedge fund | 444K | $21.7M |
| Junto Capital Management LPHedge fund | 294K | $14.4M |
| Knollwood Investment Advisory, LLC | 237K | $11.6M |
Who holds the shares
- Institutions reporting
- 570
- Ten largest holders
- 49.2% of 13F-reported shares
- Index fund managers
- 26.3% of 13F-reported shares
- Active managers and hedge funds
- 28.0% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 32 | 35 | 7 | 16 | +3.1M | +9.3% |
| Index fund managers | 10 | 1 | 0 | 1 | +2.6M | +8.2% |
| Other institutions | 355 | 151 | 169 | 54 | +4.9M | +9.7% |