<SEC-DOCUMENT>0001213900-23-010900-index.html : 20230214
<SEC-HEADER>0001213900-23-010900.hdr.sgml : 20230214
<ACCEPTANCE-DATETIME>20230213174834
ACCESSION NUMBER:		0001213900-23-010900
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230214
DATE AS OF CHANGE:		20230213
GROUP MEMBERS:		VIVO OPPORTUNITY, LLC

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mereo Biopharma Group plc
		CENTRAL INDEX KEY:			0001719714
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91444
		FILM NUMBER:		23620441

	BUSINESS ADDRESS:	
		STREET 1:		ONE CAVENDISH PLACE
		STREET 2:		FOURTH FLOOR
		CITY:			LONDON
		STATE:			X0
		ZIP:			W1G0QF
		BUSINESS PHONE:		4403330237300

	MAIL ADDRESS:	
		STREET 1:		ONE CAVENDISH PLACE
		STREET 2:		FOURTH FLOOR
		CITY:			LONDON
		STATE:			X0
		ZIP:			W1G0QF

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Vivo Capital IX, LLC
		CENTRAL INDEX KEY:			0001750698
		IRS NUMBER:				824768569
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		192 LYTTON AVENUE
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301
		BUSINESS PHONE:		6506880818

	MAIL ADDRESS:	
		STREET 1:		192 LYTTON AVENUE
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>ea173392-13ga4vivo9_mereo.htm
<DESCRIPTION>AMENDMENT NO. 4 TO SCHEDULE 13G
<TEXT>
Document 1 - file: ea173392-13ga4vivo9_mereo.htm

</DOCUMENT>
</SEC-DOCUMENT>