0000950170-23-060599.txt : 20231107 0000950170-23-060599.hdr.sgml : 20231107 20231107211022 ACCESSION NUMBER: 0000950170-23-060599 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231103 FILED AS OF DATE: 20231107 DATE AS OF CHANGE: 20231107 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: PEARSON TIMOTHY R CENTRAL INDEX KEY: 0001528617 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39062 FILM NUMBER: 231385692 MAIL ADDRESS: STREET 1: C/O TESARO, INC. STREET 2: 1000 WINTER STREET, SUITE 3300 CITY: WALTHAM STATE: MA ZIP: 02451 ISSUER: 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 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 4 1 ownership.xml 4 X0508 4 2023-11-03 0001703647 Korro Bio, Inc. KRRO 0001528617 PEARSON TIMOTHY R C/O KORRO BIO, INC. ONE KENDALL SQUARE, BUILDING 600-700 CAMBRIDGE MA 02139 true false false false false Stock Option (Right to Buy) 14.98 2023-11-03 4 A false 16000 0.00 A 2033-11-02 Common Stock 16000 16000 D The shares subject to the option vest in three equal annual installments commencing from November 3, 2023, subject to the Reporting Person's continued service on each such vesting date. /s/ Shelby Walker, Attorney-in-fact 2023-11-07