RBRK Rubrik, Inc.
Rubrik, Inc. (RBRK) Institutional Ownership
What the institutions did with RBRK last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 10.0M | 7.7% |
| AQR CAPITAL MANAGEMENT LLC | 9.9M | 7.6% |
| FMR LLC | 9.2M | 7.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 8.3M | 6.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.9M | 5.3% |
| FIRST TRUST ADVISORS LP | 6.0M | 4.6% |
| NORGES BANK | 4.1M | 3.1% |
| VOYA INVESTMENT MANAGEMENT LLC | 4.0M | 3.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.9M | 2.2% |
| STATE STREET CORP | 2.9M | 2.2% |
| Legal & General Group Plc | 2.6M | 2.0% |
| Pictet Asset Management Holding SA | 2.4M | 1.8% |
| JPMORGAN CHASE & CO | 2.3M | 1.7% |
| Anatole Investment Management Ltd | 2.2M | 1.7% |
| PointState Capital LP | 1.9M | 1.4% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.7M | 1.3% |
| Clearbridge Investments, LLC | 1.6M | 1.2% |
| MORGAN STANLEY | 1.5M | 1.2% |
| BNP PARIBAS FINANCIAL MARKETS | 1.5M | 1.2% |
| INSTITUTIONAL VENTURE MANAGEMENT XV, LLC | 1.4M | 1.1% |
| Penserra Capital Management LLC | 1.4M | 1.1% |
| BANK OF AMERICA CORP /DE/ | 1.3M | 1.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3M | 1.0% |
| FEDERATED HERMES, INC. | 1.3M | 1.0% |
| UBS Group AG | 1.3M | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| AQR CAPITAL MANAGEMENT LLC | Increased | 2.2M | 9.9M | +7.7M |
| Anatole Investment Management Ltd | New | 0 | 2.2M | +2.2M |
| PointState Capital LP | Reduced | 3.6M | 1.9M | -1.8M |
| TWO SIGMA INVESTMENTS, LP | Reduced | 2.3M | 561.0K | -1.8M |
| BlackRock, Inc. | Increased | 8.8M | 10.0M | +1.2M |
| FIRST TRUST ADVISORS LP | Increased | 4.9M | 6.0M | +1.1M |
| Greenvale Capital LLP | Sold Out | 1.0M | 0 | -1.0M |
| Pictet Asset Management Holding SA | Reduced | 3.3M | 2.4M | -957.2K |
| FMR LLC | Increased | 8.3M | 9.2M | +940.7K |
| WESTFIELD CAPITAL MANAGEMENT CO LP | New | 0 | 937.3K | +937.3K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Increased | 854.5K | 1.7M | +885.1K |
| BAMCO INC /NY/ | Increased | 277.5K | 1.1M | +837.9K |
| Champlain Investment Partners, LLC | Reduced | 1.3M | 456.3K | -803.6K |
| Legal & General Group Plc | Increased | 1.8M | 2.6M | +796.9K |
| Qube Research & Technologies Ltd | Sold Out | 733.4K | 0 | -733.4K |
| CITADEL ADVISORS LLC | Sold Out | 731.2K | 0 | -731.2K |
| SG Americas Securities, LLC | Reduced | 1.2M | 442.9K | -728.4K |
| UBS Group AG | Reduced | 2.0M | 1.3M | -700.2K |
| Capital World Investors | Sold Out | 663.7K | 0 | -663.7K |
| BAIN CAPITAL VENTURE INVESTORS, LLC | Sold Out | 659.6K | 0 | -659.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 905.7K | 331.2K | -574.5K |
| Atreides Management, LP | Sold Out | 566.5K | 0 | -566.5K |
| WELLS FARGO & COMPANY/MN | Reduced | 1.2M | 637.3K | -543.7K |
| ALKEON CAPITAL MANAGEMENT LLC | Sold Out | 500.0K | 0 | -500.0K |
| Driehaus Capital Management LLC | New | 0 | 492.2K | +492.2K |
| Trexquant Investment LP | Sold Out | 443.7K | 0 | -443.7K |
| JPMORGAN CHASE & CO | Increased | 1.8M | 2.3M | +423.4K |
| Bienville Capital Management, LLC | Reduced | 471.7K | 121.0K | -350.7K |
| BANK OF NOVA SCOTIA | Reduced | 726.7K | 379.0K | -347.7K |
| DEUTSCHE BANK AG\ | Increased | 12.1K | 352.7K | +340.6K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 6.6M | 6.9M | +330.1K |
| BARCLAYS PLC | Increased | 457.6K | 786.5K | +328.9K |
| MARSHALL WACE, LLP | Reduced | 363.0K | 42.0K | -321.0K |
| Assenagon Asset Management S.A. | Increased | 252.4K | 560.9K | +308.5K |
| BANK OF AMERICA CORP /DE/ | Increased | 1.0M | 1.3M | +302.7K |
| STATE STREET CORP | Increased | 2.6M | 2.9M | +294.6K |
| Junto Capital Management LP | Sold Out | 294.5K | 0 | -294.5K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 887.6K | 1.2M | +280.6K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 8.0M | 8.3M | +271.8K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 399.7K | 131.1K | -268.6K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 1.2M | 1.5M | +268.5K |
| VOYA INVESTMENT MANAGEMENT LLC | Increased | 3.7M | 4.0M | +268.2K |
| Mariner, LLC | Increased | 54.0K | 317.8K | +263.8K |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 491.7K | 731.7K | +240.1K |
| TEACHER RETIREMENT SYSTEM OF TEXAS | New | 0 | 237.7K | +237.7K |
| Knollwood Investment Advisory, LLC | Sold Out | 237.4K | 0 | -237.4K |
| Voleon Capital Management LP | Reduced | 331.0K | 107.3K | -223.7K |
| IEQ CAPITAL, LLC | Increased | 689.8K | 913.4K | +223.5K |
| BAILLIE GIFFORD & CO | Increased | 165.1K | 388.0K | +222.9K |
| CANADA PENSION PLAN INVESTMENT BOARD | Increased | 99.0K | 316.1K | +217.1K |
| Amundi | Increased | 561.5K | 775.1K | +213.7K |
| EVENTIDE ASSET MANAGEMENT, LLC | Increased | 11.6K | 216.4K | +204.8K |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Sold Out | 200.0K | 0 | -200.0K |
| GOLDMAN SACHS GROUP INC | Increased | 728.6K | 922.0K | +193.5K |
| Caisse de depot et placement du Quebec | Reduced | 194.8K | 4.0K | -190.8K |
| MORGAN STANLEY | Reduced | 1.7M | 1.5M | -179.5K |
| Cerity Partners LLC | Increased | 19.9K | 193.9K | +173.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.7M | 2.9M | +172.4K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | Reduced | 412.2K | 241.8K | -170.4K |
| HRT FINANCIAL LP | New | 0 | 169.9K | +169.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.