    <SEC-DOCUMENT>0001193125-24-119977-index.html : 20240429
    <SEC-HEADER>0001193125-24-119977.hdr.sgml : 20240429
    <ACCEPTANCE-DATETIME>20240429074750
    ACCESSION NUMBER:		0001193125-24-119977
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20231231
    FILED AS OF DATE:		20240429
    DATE AS OF CHANGE:		20240429
    EFFECTIVENESS DATE:		20240429

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Korro Bio, Inc.
    		CENTRAL INDEX KEY:			0001703647
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		ORGANIZATION NAME:           	03 Life Sciences
    		IRS NUMBER:				472324450
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-39062
    		FILM NUMBER:		24886630

    	BUSINESS ADDRESS:
    		STREET 1:		ONE KENDALL SQUARE. BUILDING 600-700
    		STREET 2:		SUITE 6-401
    		CITY:			CAMBRIDGE
    		STATE:			MA
    		ZIP:			02139
    		BUSINESS PHONE:		617-468-1999

    	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
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>d687795dars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: d687795dars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>