<SEC-DOCUMENT>0001193125-23-039184-index.html : 20230214 <SEC-HEADER>0001193125-23-039184.hdr.sgml : 20230214 <ACCEPTANCE-DATETIME>20230214161859 ACCESSION NUMBER: 0001193125-23-039184 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20230214 DATE AS OF CHANGE: 20230214 GROUP MEMBERS: BIOTECH GROWTH N.V. SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Generation Bio Co. CENTRAL INDEX KEY: 0001733294 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 814301281 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-91530 FILM NUMBER: 23629677 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: BB BIOTECH AG CENTRAL INDEX KEY: 0000924223 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 000000000 STATE OF INCORPORATION: V8 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: SCHWERTSTRASSE 6 CITY: SCHAFFHAUSEN STATE: V8 ZIP: 8200 BUSINESS PHONE: 411724 59 59 MAIL ADDRESS: STREET 1: SCHWERTSTRASSE 6 CITY: SCHAFFHAUSEN STATE: V8 ZIP: 8200 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>d405438dsc13ga.htm <DESCRIPTION>SC 13G/A <TEXT> Document 1 - file: d405438dsc13ga.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.B <SEQUENCE>2 <FILENAME>d405438dex99b.htm <DESCRIPTION>EX-99.B <TEXT> Document 2 - file: d405438dex99b.htm
</DOCUMENT> </SEC-DOCUMENT>