Rachel E. Haurwitz - Feb 21, 2023 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
Feb 21, 2023
Transactions value $
$0
Form type
4
Date filed
2/23/2023, 04:14 PM
Previous filing
Jun 17, 2022
Next filing
Mar 22, 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 +511K $0.00 511K Feb 21, 2023 Common Stock 511K $6.12 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 February 21, 2027, subject to the reporting person's continued service to the Issuer through the applicable vesting dates.