X0206 3 2021-10-28 0 0001501796 Aura Biosciences, Inc. AURA 0001890326 Rich Cadmus C/O AURA BIOSCIENCES, INC. 85 BOLTON STREET CAMBRIDGE MA 02140 0 1 0 0 See Remarks Stock Option (Right to Buy) 5.21 2027-10-11 Common Stock 29197 D Stock Option (Right to Buy) 2.74 2028-02-21 Common Stock 80291 D Stock Option (Right to Buy) 3.15 2029-02-06 Common Stock 18248 D Stock Option (Right to Buy) 4.25 2030-03-16 Common Stock 41422 D Stock Option (Right to Buy) 5.48 2031-06-28 Common Stock 125547 D The shares underlying this option are fully vested as of October 23, 2021. The shares underlying this option vest as follows: 25% of the shares vest on the first anniversary of February 21, 2018 with the remainder vesting thereafter pro-rata in 36 monthly installments. The shares underlying this option vest in 48 monthly installments, equal to 2.0833% of the shares, over the 48 months following February 6, 2019 The shares underlying this option vest in 48 monthly installments, equal to 2.0833% of the shares, over the 48 months following February 6, 2020 The shares underlying this option vest in 48 monthly installments, equal to 2.0833% of the shares, over the 48 months following June 28, 2021 Chief Medical Officer Head of R&D /s/ Julie Feder 2021-10-28