Ran Zheng - 01 Oct 2021 Form 4 Insider Report for Caribou Biosciences, Inc. (CRBU)

Role
Director
Signature
/s/ Barbara G. McClung, attorney-in-fact
Issuer symbol
CRBU
Transactions as of
01 Oct 2021
Net transactions value
$0
Form type
4
Filing time
04 Oct 2021, 16:10:30 UTC
Previous filing
01 Oct 2021
Next filing
21 Dec 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
transaction CRBU Stock Option (right to buy) Award $0 +44,000 $0.000000 44,000 01 Oct 2021 Common Stock 44,000 $22.31 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option becomes exercisable in three equal annual installments beginning October 1, 2022.