Rachel E. Haurwitz - Dec 20, 2021 Form 4 Insider Report for Caribou Biosciences, Inc. (CRBU)

Role
President and CEO, 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, 04:27 PM
Previous filing
Nov 12, 2021
Next filing
Feb 9, 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 +411K $0.00 411K Dec 20, 2021 Common Stock 411K $15.16 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.