Natalie Sacks - 22 Jul 2021 Form 3 Insider Report for Caribou Biosciences, Inc. (CRBU)

Role
Director
Signature
/s/s Natalie R. Sacks
Issuer symbol
CRBU
Transactions as of
22 Jul 2021
Transactions value $
$0
Form type
3
Filing time
22 Jul 2021, 20:57:45 UTC
Previous filing
07 May 2021
Next filing
15 Nov 2021
SEC
View on sec.gov

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) 22 Jul 2021 Common Stock 36.4K $2.68 Direct F1
holding CRBU Stock Option (Right to Buy) 22 Jul 2021 Common Stock 36.4K $2.85 Direct F2
holding CRBU Stock Option (Right to Buy) 22 Jul 2021 Common Stock 18.2K $5.27 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option became fully exercisable on May 21, 2020.
F2 The stock options vest in equal monthly installments over a two-year period, subject to the reporting person's continued service to the Issuer thorough the applicable vesting date.

Remarks:

Exhibit 24 - Power of Attorney.