<SEC-DOCUMENT>0000950170-24-096343-index.html : 20240813
<SEC-HEADER>0000950170-24-096343.hdr.sgml : 20240813
<ACCEPTANCE-DATETIME>20240813163316
ACCESSION NUMBER:		0000950170-24-096343
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20240813
DATE AS OF CHANGE:		20240813

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:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-279402
		FILM NUMBER:		241202235

	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>424B3
<SEQUENCE>1
<FILENAME>korro_keystone_prosupp-q.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: korro_keystone_prosupp-q.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>img247865614_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: img247865614_0.jpg

</DOCUMENT>
</SEC-DOCUMENT>