<SEC-DOCUMENT>0001193125-26-140126-index.html : 20260402
<SEC-HEADER>0001193125-26-140126.hdr.sgml : 20260402
<ACCEPTANCE-DATETIME>20260402161408
ACCESSION NUMBER:		0001193125-26-140126
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20260402
DATE AS OF CHANGE:		20260402

FILER:

	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
		EIN:				042729386
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14656
		FILM NUMBER:		26833640

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>repligen_-_defa14a_-_202.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: repligen_-_defa14a_-_202.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>img81011626_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: img81011626_0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>img81011626_1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: img81011626_1.jpg

</DOCUMENT>
</SEC-DOCUMENT>