Caribou BiosciencesCRBU
13F holders, Q1 2026 (March 31)137holders +13
25new positions
11sold out
6famous investors
$1.89avg. 13F price*
At the end of Q1 2026, 137 institutions reported holding Caribou Biosciences Inc. (CRBU) in their 13F filings, up 13 from Q4 2025. 25 opened new positions and 11 sold out. The largest holders were Pfizer Inc ($8.3M), Vanguard Capital Management LLC ($7.2M) and Renaissance Technologies ($4.9M). 6 famous investors held it, including Lee Ainslie (0.0% of Maverick Capital's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Caribou Biosciences Inc.
- CUSIP
- 142038108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 25 | $2.8M |
| Exits | 11 | $1.2M |
All 13F filers, Q4 2025 → Q1 2026: 5,449,449 shares bought and 3,623,468 shares sold, net +1,825,981 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 137 holders
| Pfizer Inc | 3.50% | No change | 4,690,431 | $8.3M |
| Vanguard Capital Management LLC | 0.00% | — | 3,767,228 | $7.2M |
| Renaissance Technologies | 0.01% | Add +58.0% | 2,590,497 | $4.9M |
| Kynam Capital Management, LP | 0.30% | No change | 2,503,302 | $4.8M |
| BlackRock, Inc. | 0.00% | Add +0.1% | 2,143,085 | $4.1M |
| Two Sigma Investments, LP | 0.00% | Add +72.5% | 1,759,934 | $3.3M |
| Bank of America Corp. | 0.00% | Add +30.6% | 1,297,167 | $2.5M |
| Aberdeen Group plc | 0.00% | Reduce -12.7% | 1,212,541 | $2.3M |
| Marshall Wace, LLP | 0.00% | Add +36.8% | 1,205,668 | $2.3M |
| Millennium Management | 0.00% | Add +40.1% | 1,074,421 | $2.0M |
| Geode Capital Management, LLC | 0.00% | Add +4.2% | 1,017,959 | $1.9M |
| PFM Health Sciences, LP | 0.20% | No change | 957,787 | $1.8M |
| Mackenzie Financial Corp. | 0.00% | New | 942,786 | $1.8M |
| Acadian Asset Management LLC | 0.00% | Add +1448.9% | 925,039 | $1.8M |
| Susquehanna International Group, LLP | 0.00% | Reduce -18.9% | 836,903 | $1.6M |
| FMR LLC | 0.00% | Reduce -0.3% | 723,959 | $1.4M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -33.1% | 673,200 | $1.3M |
| Maverick Capital | 0.01% | No change | 652,542 | $1.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.7% | 559,642 | $1.1M |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Reduce -6.0% | 547,014 | $1.0M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 520,118 | $988K |
| Gsa Capital Partners LLP | 0.06% | Add +29.4% | 480,724 | $913K |
| 72 Investment Holdings, LLC | 1.82% | No change | 474,067 | $901K |
| State Street Corp. | 0.00% | No change | 423,263 | $804K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -23.0% | 376,589 | $716K |
| Green Alpha Advisors, LLC | 0.70% | Reduce -0.4% | 373,650 | $710K |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -56.5% | 358,941 | $682K |
| XTX Topco Ltd | 0.01% | Reduce -21.8% | 323,469 | $615K |
| Wells Fargo & Company | 0.00% | Add +113.9% | 303,655 | $577K |
| UBS Group AG | 0.00% | Reduce -59.4% | 259,169 | $492K |
| Bruce & Co., Inc. | 0.14% | No change | 250,000 | $475K |
| Morgan Stanley | 0.00% | Reduce -17.9% | 245,112 | $466K |
| Northern Trust Corp. | 0.00% | No change | 217,735 | $414K |
| Point72 Asset Management | 0.00% | Reduce -53.5% | 187,622 | $356K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -13.7% | 176,697 | $336K |
| Milestone Asset Management, LLC | 0.06% | Reduce -30.1% | 162,076 | $308K |
| Citadel Advisors | 0.00% | Reduce -69.2% | 159,033 | $302K |
| Bridgeway Capital Management, LLC | 0.01% | Reduce -11.1% | 132,000 | $251K |
| OMERS ADMINISTRATION Corp | 0.00% | Reduce -32.5% | 120,200 | $228K |
| Nano Cap New Millennium Growth Fund L P | 0.21% | Add +4.4% | 117,500 | $223K |
| American Century Companies Inc. | 0.00% | No change | 112,453 | $214K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +3.8% | 88,487 | $168K |
| Invesco Ltd. | 0.00% | Add +138.2% | 83,502 | $159K |
| Keystone Financial Group | 0.01% | No change | 80,475 | $153K |
| HRT Financial LP | 0.00% | New | 78,954 | $150K |
| Man Group plc | 0.00% | Add +110.3% | 77,210 | $147K |
| Brevan Howard Capital Management LP | 0.00% | New | 65,062 | $124K |
| Nelson Capital Management, LLC | 0.01% | No change | 58,685 | $112K |
| Canada Pension Plan Investment Board | 0.00% | Add +682.4% | 57,900 | $110K |
| Citigroup Inc. | 0.00% | Reduce -23.7% | 56,923 | $108K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -2.2% | 44,908 | $85K |
| RBF Capital, LLC | 0.00% | No change | 40,000 | $76K |
| Quadrature Capital Ltd | 0.00% | Reduce -75.2% | 39,556 | $75K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Reduce -6.8% | 39,233 | $75K |
| Public Employees Retirement System of Ohio | 0.00% | Reduce -7.3% | 39,129 | $74K |
| Graham Capital Management, L.P. | 0.00% | Reduce -63.9% | 38,751 | $74K |
| Virtu Financial LLC | 0.00% | New | 36,609 | $70K |
| LPL Financial LLC | 0.00% | Add +127.2% | 35,274 | $67K |
| HSBC Holdings PLC | 0.00% | No change | 34,460 | $65K |
| US Bancorp \de | 0.00% | No change | 34,265 | $65K |
| Jefferies Financial Group Inc. | 0.00% | Reduce -25.8% | 33,262 | $63K |
| Diametric Capital, LP | 0.02% | New | 32,793 | $62K |
| &partners | 0.00% | Reduce -8.4% | 32,505 | $62K |
| Prime Capital Investment Advisors, LLC | 0.00% | Reduce -4.8% | 32,315 | $61K |
| Catalyst Funds Management Pty Ltd | 0.01% | New | 32,200 | $61K |
| Thrive Wealth Management, LLC | 0.01% | No change | 32,000 | $61K |
| Sei Investments Co. | 0.00% | New | 31,008 | $59K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 30,741 | $58K |
| Envestnet Asset Management Inc. | 0.00% | Reduce -5.3% | 30,586 | $58K |
| Ameriprise Financial Inc. | 0.00% | Reduce -65.4% | 29,430 | $56K |
| Vanguard Global Advisers, LLC | 0.00% | — | 29,101 | $55K |
| Credit Agricole S A | 0.00% | No change | 29,000 | $55K |
| Russell Investments Group, Ltd. | 0.00% | Add +13.2% | 27,560 | $52K |
| Barclays PLC | 0.00% | Add +23.2% | 26,713 | $51K |
| Jane Street Group, LLC | 0.00% | Reduce -91.5% | 24,975 | $47K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 23,969 | $46K |
| Bank of Montreal | 0.00% | New | 21,000 | $40K |
| NINE MASTS CAPITAL Ltd | 0.01% | New | 20,612 | $39K |
| Next Capital Management LLC | 0.01% | No change | 20,000 | $38K |
| Westmount Partners, LLC | 0.01% | New | 19,609 | $37K |
| Liberty Wealth Management LLC | 0.00% | No change | 19,500 | $37K |
| Prudential Financial Inc. | 0.00% | New | 19,000 | $36K |
| HighTower Advisors, LLC | 0.00% | No change | 16,934 | $32K |
| China Universal Asset Management Co., Ltd. | 0.00% | Add +8.9% | 16,587 | $32K |
| Creative Planning | 0.00% | Reduce -10.8% | 16,500 | $31K |
| Raymond James Financial Inc. | 0.00% | New | 16,373 | $31K |
| Modern Wealth Management, LLC | 0.00% | No change | 15,000 | $30K |
| AQR Capital Management | 0.00% | Reduce -38.7% | 15,678 | $30K |
| Bronte Capital Management Pty Ltd. | 0.00% | No change | 15,627 | $30K |
| CTC Alternative Strategies, Ltd. | 0.07% | New | 15,076 | $29K |
| Axq Capital, LP | 0.00% | New | 15,000 | $29K |
| Cetera Investment Advisers | 0.00% | Reduce -6.3% | 14,781 | $28K |
| Great Valley Advisor Group, Inc. | 0.00% | New | 14,314 | $28K |
| Two Sigma Securities, LLC | 0.00% | New | 13,052 | $25K |
| Pinnacle Wealth Management Advisory Group, LLC | 0.00% | No change | 12,903 | $25K |
| Pinnacle Associates Ltd. | 0.00% | No change | 12,903 | $25K |
| HBK Sorce Advisory LLC | 0.00% | No change | 12,344 | $24K |
| Bank of New York Mellon Corp | 0.00% | Reduce -3.4% | 12,511 | $24K |
| Jump Financial, LLC | 0.00% | New | 12,460 | $24K |
| NewEdge Advisors, LLC | 0.00% | Add +5.0% | 10,925 | $21K |
"% of holder's portfolio" is CRBU's weight in each manager's 13F, not the share of Caribou Biosciences Inc. the manager owns.