Christopher Dinsmore - Oct 4, 2021 Form 4 Insider Report for Kronos Bio, Inc. (KRON)

Role: Chief Scientific Officer
Signature: /s/ Allison Frisbee, Attorney-in-Fact
Stock symbol: KRON
Transactions as of: Oct 4, 2021
Transactions value $: -$161,147
Form type: 4
Date filed: 10/4/2021, 06:24 PM
Previous filing: Sep 9, 2021
Next filing: Dec 15, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KRON	Common Stock	Options Exercise	$30K	+9.19K	+9.54%	$3.27	106K	Oct 4, 2021	Direct
transaction	KRON	Common Stock	Sale	-$191K	-9.19K	-8.71%	$20.81^*	96.4K	Oct 4, 2021	Direct	F1, F2

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	KRON	Employee Stock Option (Right to Buy)	Options Exercise	$0	-9.19K	-2.83%	$0.00	315K	Oct 4, 2021	Common Stock	9.19K	$3.27	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 17, 2021.
F2	The weighted average sale price for the transaction reported was $20.8069, and the range of prices were between $20.51 and $21.20. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided.
F3	Immediately exercisable.