X0306 4 2022-01-03 0 0001435049 CHINOOK THERAPEUTICS, INC. KDNY 0001745958 Jerel Davis C/O CHINOOK THERAPEUTICS, INC. 1600 FAIRVIEW AVE. E., SUITE 100 SEATTLE WA 98102 1 0 1 0 Common Stock 2022-01-03 4 S 0 600000 16.0002 D 3623023 I See Footnote Common Stock 2022-01-03 4 S 0 308000 16.0002 D 1863197 I See Footnote Common Stock 2022-01-03 4 S 0 92000 16.0002 D 552149 I See Footnote The sale of these shares were effected pursuant to Rule 10b5-1 trading plans adopted by each of Versant Venture Capital VII, L.P. ("Versant VII"), Versant Voyageurs I, L.P. ("Versant Voyageurs I") and Versant Voyageurs I Parallel, L.P. ("Versant I Parallel"), respectively. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00 to $16.31, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4. These securities are held of record by Versant VII. Versant Ventures VII GP, L.P. ("Versant Ventures VII GP") is the general partner of Versant VII, and Versant Ventures VII GP-GP, LLC ("Versant Ventures VII GP-GP") is the general partner of Versant Ventures VII GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VII GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant VII. Each of Versant VII GP-GP, Versant VII GP and the Reporting Person disclaims beneficial ownership of the shares held by Versant VII, except to the extent of their respective pecuniary interests therein. These securities are held of record by Versant Voyageurs I. Versant Voyageurs I GP Company is the general partner of Versant Voyageurs I. The Reporting Person, a member of the Issuer's board of directors, is a director of Versant Voyageurs I GP Company and may be deemed to share voting and dispositive power over the shares held by Versant Voyageurs I. Each of Versant Voyageurs I GP Company and the Reporting Person disclaims beneficial ownership of the shares held by Versant Voyageurs I, except to the extent of their respective pecuniary interests therein. These securities are held of record by Versant I Parallel. Versant Voyageurs I GP, L.P. ("Versant Voyageurs I GP") is the general partner of Versant I Parallel. Versant Ventures VI GP, L.P. ("Versant Ventures VI GP") is the general partner of Versant Voyageurs I GP. Versant Ventures VI GP-GP, LLC ("Versant Ventures VI GP-GP") is the general partner of Versant Ventures VI GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VI GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant I Parallel. Each of Versant Ventures VI GP-GP, Versant Ventures VI GP, Versant Voyageurs I GP and the Reporting Person disclaims beneficial ownership of the shares held by Versant I Parallel, except to the extent of their respective pecuniary interests therein. /s/ Robin L. Praeger, Attorney-in-Fact 2022-01-05