<SEC-DOCUMENT>0001213900-24-010433-index.html : 20240206
<SEC-HEADER>0001213900-24-010433.hdr.sgml : 20240206
<ACCEPTANCE-DATETIME>20240206134119
ACCESSION NUMBER:		0001213900-24-010433
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240206
DATE AS OF CHANGE:		20240206
GROUP MEMBERS:		ROY T. EDDLEMAN CHARITABLE REMAINDER TRUST #1
GROUP MEMBERS:		ROY T. EDDLEMAN CHARITABLE REMAINDER TRUST #2

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			REPLIGEN CORP
		CENTRAL INDEX KEY:			0000730272
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				042729386
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-38071
		FILM NUMBER:		24599453

	BUSINESS ADDRESS:	
		STREET 1:		41 SEYON STREET
		STREET 2:		BUILDING 1, SUITE 100
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02453
		BUSINESS PHONE:		7814499560

	MAIL ADDRESS:	
		STREET 1:		41 SEYON STREET
		STREET 2:		BUILDING 1, SUITE 100
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02453

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EDDLEMAN ROY T
		CENTRAL INDEX KEY:			0001270264
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	MAIL ADDRESS:	
		STREET 1:		110 W. GEORGE BURNS ROAD
		STREET 2:		SUITE D-4018
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90048
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>ea192701-13ga6roy_replien.htm
<DESCRIPTION>AMENDMENT NO. 6 TO SCHEDULE 13G
<TEXT>
Document 1 - file: ea192701-13ga6roy_replien.htm

</DOCUMENT>
</SEC-DOCUMENT>