X0609 4 2026-04-01 false 0001517022 Akebia Therapeutics, Inc. AKBA 0001635046 Vickers Philip J. false C/O AKEBIA THERAPEUTICS, INC 245 FIRST STREET CAMBRIDGE MA 02142 true false false false false Stock Option (Right to buy) 1.41 2026-04-01 4 A false 214400.00 0.00 A 2036-04-01 Common Stock 214400.00 214400.00 D The option to purchase shares of the Issuer's common stock (the "Stock Option") was granted by the Issuer pursuant to the 2023 Plan, as provided by the Fifth Amended and Restated Non-Employee Director Compensation Program. The Stock Option will vest over three years: 33 1/3 % of the options will vest on the first anniversary of the grant date and the remaining 66 2/3 % will vest ratably on the first day of each calendar quarter thereafter, subject to the Reporting Person's continued service to the Issuer. /s/ Carolyn M. Rucci, attorney-in-fact for Philip J. Vickers 2026-04-03