Table of Contents As filed with the Securities and Exchange Commission on May 14, 2024 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 KORRO BIO, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Kingsley L. Taft, Esq. Marianne C. Sarrazin, Esq. Goodwin Procter LLP 100 Northern Avenue Boston, MA 02210 (617) 570-1000 Approximat ...

Table of Contents As filed with the Securities and Exchange Commission on May 14, 2024 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 KORRO BIO, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Delaware 2834 47-2324450 (Primary Standard Industrial Classification Code No.) (I.R.S. Employer Identification Number) One Kendall S ...