Natalie Sacks - Dec 20, 2021 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
Dec 20, 2021
Transactions value $
$0
Form type
4
Date filed
12/21/2021, 04:38 PM
Previous filing
Nov 15, 2021
Next filing
Feb 1, 2022

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 +27.5K $0.00 27.5K Dec 20, 2021 Common Stock 27.5K $15.16 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 December 20, 2022, subject to the reporting person continuing to provide service to the Issuer through each such vesting date.