0001959173-23-004882.txt : 20231120 0001959173-23-004882.hdr.sgml : 20231120 20231120152540 ACCESSION NUMBER: 0001959173-23-004882 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231120 DATE AS OF CHANGE: 20231120 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Korro Bio, Inc. CENTRAL INDEX KEY: 0001703647 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 472324450 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-39062 FILM NUMBER: 231422522 BUSINESS ADDRESS: STREET 1: ONE KENDALL SQUARE. BUILDING 600-700 STREET 2: SUITE 6-401 CITY: CAMBRIDGE STATE: MA ZIP: 02139 BUSINESS PHONE: 617-468-1900 MAIL ADDRESS: STREET 1: ONE KENDALL SQUARE. BUILDING 600-700 STREET 2: SUITE 6-401 CITY: CAMBRIDGE STATE: MA ZIP: 02139 FORMER COMPANY: FORMER CONFORMED NAME: Frequency Therapeutics, Inc. DATE OF NAME CHANGE: 20170412 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Mitrano Richard J. CENTRAL INDEX KEY: 0001785287 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O FREQUENCY THERAPEUTICS, INC. STREET 2: 19 PRESIDENTIAL WAY, 2ND FLOOR CITY: WOBURN STATE: MA ZIP: 01801 144 1 primary_doc.xml 144 0001785287 XXXXXXXX LIVE 0001703647 Korro Bio, Inc. 001-39062 ONE KENDALL SQUARE. BUILDING 600-700 SUITE 6-401 CAMBRIDGE MA 02139 617-468-1900 Mitrano Richard J. Former Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

268 10051.29 36926285 11/20/2023 NASDAQ Common 11/06/2023 Restricted Stock Vesting Issuer N 268 11/06/2023 Compensation N Richard J. Mitrano

One Kendall Square, Building 600-700 Suite 6-401 Cambridge MA 02139

Common 08/21/2023 237 125.66 Richard J. Mitrano

One Kendall Square, Building 600-700 Suite 6-401 Cambridge MA 02139

Common 11/10/2023 192 8059.95 11/20/2023 /s/ Jared Cook, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Richard J. Mitrano