Barbara G. Mcclung - Jul 22, 2021 Form 3 Insider Report for Caribou Biosciences, Inc. (CRBU)

Role
Chief Legal Officer and Corporate Secretary Exhibit 24 - Power of Attorney.
Signature
/s/ Barbara G. McClung
Stock symbol
CRBU
Transactions as of
Jul 22, 2021
Transactions value $
$0
Form type
3
Date filed
7/22/2021, 09:01 PM
Next filing
Oct 21, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding CRBU Common Stock 334K Jul 22, 2021 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
holding CRBU Stock Option (Right to Buy) Jul 22, 2021 Common Stock 132 $2.68 Direct F1
holding CRBU Stock Option (Right to Buy) Jul 22, 2021 Common Stock 90.1K $2.68 Direct F2
holding CRBU Stock Option (Right to Buy) Jul 22, 2021 Common Stock 232K $4.11 Direct F3
* 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 have vested or will vest in equal monthly installments until the option is fully vested on June 12, 2022, subject to the reporting person's continued service to the Issuer thorough the applicable vesting date.
F2 The shares subject to this option have vested or will vest in equal monthly installments until the option is fully vested on October 1, 2023, subject to the reporting person's continued service to the Issuer thorough the applicable vesting date.
F3 1/4th of the shares subject to this option will vest on March 2, 2022 and an additional 1/48th of the aggregate number of shares subject to the option will vest on the corresponding day of each month thereafter, subject to the reporting person's continued service to the Issuer thorough the applicable vesting date.

Remarks:

Chief Legal Officer and Corporate Secretary Exhibit 24 - Power of Attorney.