X0609 4 2026-09-01 0001501796 Aura Biosciences, Inc. AURA 0002042910 Elazzouzi Amy false C/O AURA BIOSCIENCES, INC. 80 GUEST STREET BOSTON MA 02135 false true false false SVP, Finance & PAO 0 Common Stock 2026-09-01 4 A 0 23540 0 A 143600 D Stock Option (Right to Buy) 7.43 2026-09-01 4 A 0 46460 0 A 2036-09-01 Common Stock 46460 46460 D The reported transaction represents a grant of restricted stock units ("RSUs") under the Issuer's 2021 Stock Option and Incentive Plan. Each RSU represents the right to receive one share of the Issuer's Common Stock upon vesting and settlement. These RSUs shall vest in four substantially equal annual installments, subject to the Reporting Person's continued service to the Issuer on each vesting date, with the first tranche vesting on September 15, 2027. The stock option shall vest as to 1/48th of the total award monthly, subject to the reporting person's continued service to the Issuer on each vesting date, with the first tranche vesting on October 1, 2026. /s/ Daniel Grassi, as Attorney-in-Fact 2026-09-01