CRBU Caribou Biosciences, Inc.
Caribou Biosciences, Inc. (CRBU) Institutional Ownership
What the institutions did with CRBU 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. | 7.8M | 16.0% |
| Pfizer Inc | 4.7M | 9.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.2M | 8.6% |
| MACKENZIE FINANCIAL CORP | 3.7M | 7.5% |
| RENAISSANCE TECHNOLOGIES LLC | 2.8M | 5.7% |
| Kynam Capital Management, LP | 2.5M | 5.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4M | 4.9% |
| ACADIAN ASSET MANAGEMENT LLC | 1.8M | 3.6% |
| STATE STREET CORP | 1.6M | 3.3% |
| BANK OF AMERICA CORP /DE/ | 1.4M | 2.9% |
| TWO SIGMA INVESTMENTS, LP | 1.0M | 2.1% |
| DIMENSIONAL FUND ADVISORS LP | 975.3K | 2.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 775.8K | 1.6% |
| Cambridge Investment Research Advisors, Inc. | 764.8K | 1.6% |
| FMR LLC | 727.1K | 1.5% |
| NORTHERN TRUST CORP | 713.0K | 1.5% |
| MAVERICK CAPITAL LTD | 652.5K | 1.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 613.8K | 1.3% |
| VANGUARD FIDUCIARY TRUST CO | 606.4K | 1.2% |
| Qube Research & Technologies Ltd | 545.8K | 1.1% |
| UBS Group AG | 517.4K | 1.1% |
| 72 Investment Holdings, LLC | 474.1K | 1.0% |
| GSA CAPITAL PARTNERS LLP | 463.4K | 1.0% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 411.0K | 0.8% |
| MARSHALL WACE, LLP | 375.7K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 2.1M | 7.8M | +5.7M |
| MACKENZIE FINANCIAL CORP | Increased | 942.8K | 3.7M | +2.7M |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.0M | 2.4M | +1.4M |
| Aberdeen Group plc | Sold Out | 1.2M | 0 | -1.2M |
| STATE STREET CORP | Increased | 423.3K | 1.6M | +1.2M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 1.1M | 51.2K | -1.0M |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 925.0K | 1.8M | +849.4K |
| MARSHALL WACE, LLP | Reduced | 1.2M | 375.7K | -830.0K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 1.8M | 1.0M | -713.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 836.9K | 165.4K | -671.5K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | 0 | 613.8K | +613.8K |
| PFM Health Sciences, LP | Reduced | 957.8K | 354.7K | -603.1K |
| NORTHERN TRUST CORP | Increased | 217.7K | 713.0K | +495.2K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 3.8M | 4.2M | +441.3K |
| Qube Research & Technologies Ltd | Increased | 176.7K | 545.8K | +369.1K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 673.2K | 975.3K | +302.1K |
| UBS Group AG | Increased | 259.2K | 517.4K | +258.2K |
| Cambridge Investment Research Advisors, Inc. | Increased | 547.0K | 764.8K | +217.8K |
| Invesco Ltd. | Increased | 83.5K | 301.1K | +217.6K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 559.6K | 775.8K | +216.2K |
| Bank of New York Mellon Corp | Increased | 12.5K | 222.6K | +210.0K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 2.6M | 2.8M | +183.0K |
| Point72 Asset Management, L.P. | Reduced | 187.6K | 15.8K | -171.9K |
| Man Group plc | Increased | 77.2K | 240.1K | +162.9K |
| Susquehanna Portfolio Strategies, LLC | New | 0 | 158.6K | +158.6K |
| MORGAN STANLEY | Reduced | 245.1K | 121.3K | -123.8K |
| Nuveen, LLC | New | 0 | 123.5K | +123.5K |
| OMERS ADMINISTRATION Corp | Sold Out | 120.2K | 0 | -120.2K |
| CITADEL ADVISORS LLC | Reduced | 159.0K | 40.4K | -118.6K |
| Graham Capital Management, L.P. | Increased | 38.8K | 155.9K | +117.2K |
| BANK OF AMERICA CORP /DE/ | Increased | 1.3M | 1.4M | +113.8K |
| DEUTSCHE BANK AG\ | New | 0 | 89.6K | +89.6K |
| LPL Financial LLC | Increased | 35.3K | 122.8K | +87.5K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 520.1K | 606.4K | +86.3K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Increased | 88.5K | 173.4K | +84.9K |
| HRT FINANCIAL LP | Sold Out | 79.0K | 0 | -79.0K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 2.1K | 70.9K | +68.8K |
| RHUMBLINE ADVISERS | New | 0 | 68.6K | +68.6K |
| Brevan Howard Capital Management LP | Sold Out | 65.1K | 0 | -65.1K |
| XTX Topco Ltd | Reduced | 323.5K | 269.2K | -54.3K |
| GOLDMAN SACHS GROUP INC | Reduced | 376.6K | 322.9K | -53.7K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Increased | 358.9K | 411.0K | +52.0K |
| Quadrature Capital Ltd | Increased | 39.6K | 89.0K | +49.4K |
| MILESTONE ASSET MANAGEMENT, LLC | Increased | 162.1K | 200.1K | +38.0K |
| ALLIANCEBERNSTEIN L.P. | New | 0 | 37.1K | +37.1K |
| JPMORGAN CHASE & CO | Increased | 6.1K | 42.9K | +36.8K |
| NEW YORK STATE COMMON RETIREMENT FUND | New | 0 | 35.4K | +35.4K |
| Jefferies Financial Group Inc. | Sold Out | 33.3K | 0 | -33.3K |
| Diametric Capital, LP | Sold Out | 32.8K | 0 | -32.8K |
| Catalyst Funds Management Pty Ltd | Sold Out | 32.2K | 0 | -32.2K |
| ENVESTNET ASSET MANAGEMENT INC | Sold Out | 30.6K | 0 | -30.6K |
| AMERICAN CENTURY COMPANIES INC | Increased | 112.5K | 140.6K | +28.1K |
| Police & Firemen's Retirement System of New Jersey | New | 0 | 27.1K | +27.1K |
| Schonfeld Strategic Advisors LLC | Sold Out | 24.0K | 0 | -24.0K |
| Spark Investment Management LLC | New | 0 | 23.6K | +23.6K |
| BARCLAYS PLC | Increased | 26.7K | 50.3K | +23.6K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | New | 0 | 23.5K | +23.5K |
| CANADA PENSION PLAN INVESTMENT BOARD | Increased | 57.9K | 81.1K | +23.2K |
| NINE MASTS CAPITAL Ltd | Sold Out | 20.6K | 0 | -20.6K |
| INTECH INVESTMENT MANAGEMENT LLC | New | 0 | 19.9K | +19.9K |
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.