<SEC-DOCUMENT>0001104659-26-012196-index.html : 20260209
<SEC-HEADER>0001104659-26-012196.hdr.sgml : 20260209
<ACCEPTANCE-DATETIME>20260209174135
ACCESSION NUMBER:		0001104659-26-012196
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260209
FILED AS OF DATE:		20260209
DATE AS OF CHANGE:		20260209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Rowland Charles A Jr
		CENTRAL INDEX KEY:			0001383292
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39319
		FILM NUMBER:		26612686

	MAIL ADDRESS:	
		STREET 1:		3338 LANCASHIRE RD
		CITY:			FURLONG
		STATE:			PA
		ZIP:			18925

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Generation Bio Co.
		CENTRAL INDEX KEY:			0001733294
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				814301284
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		301 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		857-529-5908

	MAIL ADDRESS:	
		STREET 1:		301 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tm265471-11_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm265471-11_4seq1.html

Document 1 - RAW XML: tm265471-11_4seq1.xml

</DOCUMENT>
</SEC-DOCUMENT>