Caribou Biosciences, Inc.

CRBU

Exchange: Nasdaq
Industry: Biological Products, (No Diagnostic Substances)
SEC CIK: 0001619856

SEC filings (opens in a new tab)

No open-market purchases or sales by Caribou Biosciences, Inc. insiders were filed in the last 90 days; 137 institutions reported holding it in 13F filings for Q2 2026, worth $84.8M in total; Maverick Capital is the only superinvestor holding it.

Q1 2026 vs. Q4 2025

How the institutions holding Caribou Biosciences, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026 All holders in Q4 2025

13F holders of CRBU: Q4 2025 compared with Q1 2026
Measure	Q4 2025	Of which not filed for Q1 2026	Q1 2026	Change
Holders	124	2	137	+15
Shares	37.1M	4.31M	37.8M	+5.01M (+15.3%)
Value	$58.8M	$6.85M	$71.3M	+$19.3M (+37.2%)

2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (28)

Institutions that held Caribou Biosciences, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to CRBU in Q1 2026
Institution	Shares	Value	% of portfolio
Vanguard Capital Management LLC	3,767,228	$7.16M	0.00%
Mackenzie Financial Corp	942,786	$1.79M	0.00%
Vanguard Fiduciary Trust Co	520,118	$988.2K	0.00%
HRT Financial LP	78,954	$150.0K	0.00%
Brevan Howard Capital Management LP	65,062	$123.6K	0.00%
Virtu Financial LLC	36,609	$70.0K	0.00%
Diametric Capital, LP	32,793	$62.3K	0.02%
Catalyst Funds Management Pty Ltd	32,200	$61.2K	0.01%
SEI Investments Co	31,008	$58.9K	0.00%
Connor, Clark & Lunn Investment Management Ltd.	30,741	$58.4K	0.00%
Vanguard Global Advisers, LLC	29,101	$55.3K	0.00%
Schonfeld Strategic Advisors LLC	23,969	$45.5K	0.00%
Bank of Montreal	21,000	$39.9K	0.00%
Nine Masts Capital Ltd	20,612	$39.2K	0.01%
Westmount Partners, LLC	19,609	$37.3K	0.01%
Prudential Financial Inc	19,000	$36.1K	0.00%
Raymond James Financial Inc	16,373	$31.1K	0.00%
CTC Alternative Strategies, Ltd.	15,076	$28.6K	0.07%
Axq Capital, LP	15,000	$28.5K	0.00%
Great Valley Advisor Group, Inc.	14,314	$27.6K	0.00%
Two Sigma Securities, LLC	13,052	$24.8K	0.00%
Jump Financial, LLC	12,460	$23.7K	0.00%
Quantinno Capital Management LP	10,436	$19.8K	0.00%
Scarborough Advisors, LLC	8,420	$16.0K	0.00%
Clear Street Markets LLC	809	$1.54K	0.00%
Advisory Services Network, LLC	114	$217	0.00%
Gill Capital Partners, LLC	75	$143	0.00%
Caitong International Asset Management Co., Ltd	3	$6	0.00%

Sold out (13)

Institutions that held Caribou Biosciences, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of CRBU in Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Two Sigma Advisers, LP	1,115,700	$1.77M
Siren, L.L.C.	105,347	$167.5K
ExodusPoint Capital Management, LP	77,704	$123.5K
Squarepoint Ops LLC	55,938	$88.9K
Lighthouse Investment Partners, LLC	44,160	$70.2K
Capital Advisory Group Advisory Services, LLC	12,314	$19.6K
Buckingham Strategic Partners	12,216	$19.4K
J.W. Cole Advisors, Inc.	11,269	$17.9K
Optiver Holding B.V.	1,104	$1.75K
Country Trust Bank	700	$1.11K
Sunbelt Securities, Inc.	18	$29
IFP Advisors, Inc	1	$2
DekaBank Deutsche Girozentrale	130,000	–

Not filed for Q1 2026 yet (2)

Institutions that held Caribou Biosciences, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding CRBU in Q4 2025 that haven't filed for Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Vanguard Group Inc	4,304,198	$6.84M
Global Retirement Partners, LLC	1,000	$1.59K