<SEC-DOCUMENT>0000950170-23-060599-index.html : 20231107
<SEC-HEADER>0000950170-23-060599.hdr.sgml : 20231107
<ACCEPTANCE-DATETIME>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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4
<TEXT>
Document 1 - file: ownership.html

Document 1 - RAW XML: ownership.xml

</DOCUMENT>
</SEC-DOCUMENT>