Caribou Biosciences, Inc. — Director's Dealing 2021

Dec 21, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Caribou Biosciences, Inc. (CRBU)
CIK: 0001619856
Period of Report: 2021-12-20

Reporting Person: MCCLUNG BARBARA G (Chief Legal Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-12-20	Option to purchase Common Stock	$15.16	A	147000	Acquired	2031-12-19	Common Stock (147000)	Direct

Footnotes

F1: The shares subject to this option will vest in equal monthly installments starting on the first monthly anniversary of the grant date until the option is fully vested on December 20, 2025, subject to the reporting person's continued service to the Issuer through the applicable vesting dates.