Andrew Guggenhime - Feb 21, 2023 Form 4 Insider Report for Caribou Biosciences, Inc. (CRBU)

Role
Director
Signature
/s/ Barbara G. McClung, as attorney-in-fact
Stock symbol
CRBU
Transactions as of
Feb 21, 2023
Transactions value $
$0
Form type
4
Date filed
2/23/2023, 04:10 PM
Previous filing
Jan 4, 2023
Next filing
Mar 3, 2023

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CRBU Option to purchase Common Stock Award $0 +21.5K $0.00 21.5K Feb 21, 2023 Common Stock 21.5K $6.12 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 One-twelfth of the shares subject to this option will vest on each monthly anniversary of the grant date such that the option will be fully vested on February 21, 2024, subject to the reporting person continuing to provide service to the Issuer through each such vesting date.