X0508 4 2025-01-31 false 0001517022 Akebia Therapeutics, Inc. AKBA 0001762507 Ostrowski Erik C/O AKEBIA THERAPEUTICS, INC 245 FIRST ST. CAMBRIDGE MA 02142 false true false false SVP, CFO, CBO & Treasurer false Common Stock 2025-01-31 4 A false 194900.00 0.00 A 544900.00 D Stock Option (Right to buy) 2.24 2025-01-31 4 A false 292300.00 0.00 A 2035-01-31 Common Stock 292300.00 292300.00 D The restricted stock units were granted by the Issuer pursuant to its 2023 Stock Incentive Plan. One third of the restricted stock units will vest on each of the first, second and third anniversaries of the grant date, subject to the reporting person's continued service with the Issuer on each vesting date. The options were granted by the Issuer pursuant to its 2023 Stock Incentive Plan. The options will vest over four years: 25% of the options will vest on the first anniversary of the grant date with the remaining 75% vesting in equal quarterly installments thereafter, subject to the reporting person's continued service with the Issuer on each vesting date. /s/Carolyn Rucci, attorney-in-fact for Erik Ostrowski 2025-02-04