CRBU

Caribou Biosciences, Inc.

Biological Products, (No Diagnostic Substances)NasdaqNon-accelerated filer<br>Smaller reporting company<br>Emerging growth company

Total Trades

Buys

Sells

Largest Trade

N/A

Insiders

Institutional Funds

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Kelly Timothy P	CTO	SELL	$1K–$15K	6K	$1.93	Feb 27, 2026
Kelly Timothy P	CTO	GRANT	N/A	45K	—	Feb 25, 2026
Kelly Timothy P	CTO	SELL	$1K–$15K	3K	$1.96	Feb 25, 2026
MCCLUNG BARBARA G	Chief Legal Officer	GRANT	N/A	45K	—	Feb 25, 2026
MCCLUNG BARBARA G	Chief Legal Officer	SELL	$1K–$15K	7K	$1.96	Feb 25, 2026
Khan Ruhi Ahmad	Chief Business Off…	GRANT	N/A	45K	—	Feb 25, 2026
Khan Ruhi Ahmad	Chief Business Off…	SELL	$1K–$15K	7K	$1.96	Feb 25, 2026
Albertson Tina M.	Chief Medical Offi…	SELL	$1K–$15K	1K	$1.96	Feb 25, 2026
Albertson Tina M.	Chief Medical Offi…	GRANT	N/A	55K	—	Feb 25, 2026
Haurwitz Rachel E.	President and CEO	BUY	$15K–$50K	20K	$1.02	Mar 17, 2025
MCCLUNG BARBARA G	Chief Legal Officer	SELL	$1K–$15K	4K	$1.35	Feb 22, 2025
MCCLUNG BARBARA G	Chief Legal Officer	GRANT	N/A	38K	—	Feb 22, 2025
Khan Ruhi Ahmad	Chief Business Off…	SELL	$1K–$15K	4K	$1.35	Feb 22, 2025
Khan Ruhi Ahmad	Chief Business Off…	GRANT	N/A	38K	—	Feb 22, 2025
Kanner Steven	Chief Scientific O…	GRANT	N/A	38K	—	Feb 22, 2025
Kanner Steven	Chief Scientific O…	SELL	$1K–$15K	4K	$1.35	Feb 22, 2025
Ryali Sriram	CFO	BUY	$15K–$50K	17K	$1.42	Jan 30, 2025
Rizvi Syed Ali-aamir	Chief Medical Offi…	SELL	$15K–$50K	6K	$6.31	Jan 20, 2023
Fischesser Ryan	VP of Finance and …	EXERCISE	$15K–$50K	6K	$3.40	Oct 7, 2022
Fischesser Ryan	VP of Finance and …	SELL	$100K–$500K	10K	$10.80	Oct 7, 2022
Kanner Steven	Chief Scientific O…	EXERCISE	$100K–$500K	43K	$2.69	Aug 26, 2022
Kanner Steven	Chief Scientific O…	SELL	$100K–$500K	43K	$11.22	Aug 26, 2022
Fischesser Ryan	VP of Finance and …	BUY	$15K–$50K	7K	$4.00	Jan 12, 2022

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Institutional Ownership

13F filings as of Dec 31, 2025 · 90 funds holding

Fund	Shares	Value	Type
PFIZER INC	4.7M	$1M+	SH
RENAISSANCE TECHNOLOGIES LLC	1.6M	$1M+	SH
Aberdeen Group plc	1.4M	$1M+	SH
PFM Health Sciences, LP	958K	$1M+	SH
DIMENSIONAL FUND ADVISORS LP	904K	$1M+	SH
JACOBS LEVY EQUITY MANAGEMENT, INC	824K	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	797K	$1M+	SH
MAVERICK CAPITAL LTD	653K	$1M+	SH
Cambridge Investment Research Advisors, Inc.	582K	$500K+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	556K	$500K+	SH
72 Investment Holdings, LLC	474K	$500K+	SH
DekaBank Deutsche Girozentrale	130K	$500K+	SH
STATE STREET CORP	423K	$500K+	SH
Point72 Asset Management, L.P.	404K	$500K+	SH
Green Alpha Advisors, LLC	375K	$500K+	SH
GSA CAPITAL PARTNERS LLP	371K	$500K+	SH
JANE STREET GROUP, LLC	283K	$100K–$500K	SH
Bruce & Co., Inc.	250K	$100K–$500K	SH
MILESTONE ASSET MANAGEMENT, LLC	232K	$100K–$500K	SH
OMERS ADMINISTRATION Corp	178K	$100K–$500K	SH