Tom Frohlich - 24 Sep 2021 Form 4 Insider Report for CHINOOK THERAPEUTICS, INC.

Role: Chief Operating Officer
Signature: /s/ Kirk Schumacher, Attorney-in-Fact
Issuer symbol: N/A
Transactions as of: 24 Sep 2021
Net transactions value: +$8,400
Form type: 4
Filing time: 28 Sep 2021, 16:46:59 UTC
Previous filing: 09 Jun 2021
Next filing: 08 Oct 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KDNY	Common Stock	Options Exercise	$8,400	+20,000	+15%	$0.4200^*	153,398	24 Sep 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
transaction	KDNY	Employee Stock Option (right to buy)	Options Exercise	$0	-20,000	-20%	$0.000000	78,847	24 Sep 2021	Common Stock	20,000	$0.4200	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The stock option vests as to 25% of the total shares on March 6, 2021, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.