Steven Kanner - Dec 2, 2022 Form 4 Insider Report for Caribou Biosciences, Inc. (CRBU)

Role
Chief Scientific Officer
Signature
/s/ Barbara G. McClung, as attorney-in-fact
Stock symbol
CRBU
Transactions as of
Dec 2, 2022
Transactions value $
$0
Form type
4
Date filed
12/2/2022, 06:01 PM
Previous filing
Aug 26, 2022
Next filing
Feb 23, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CRBU Common Stock Options Exercise $57.6K +21.4K +7.09% $2.69 323K Dec 2, 2022 Direct

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 Options Exercise -$57.6K -21.4K -29.08% $2.69 52.2K Dec 2, 2022 Common Stock 21.4K $2.69 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 1/4th of the shares subject to this option vested on October 1, 2020 and an additional 1/48th of the aggregate number of shares subject to the option have vested or will vest on the corresponding day of each month thereafter, subject to the reporting person's continued services to the Issuer through the applicable vesting dates.