Media Contacts

Jess Rowlands

Head of Corporate Communications

(857) 299-6103

jess.rowlands@bluebirdbio.com

Investor Contacts

Courtney O’Leary

Investor Relations

(978) 621-7347

coleary@bluebirdbio.com

SEC Filings

Filing date	Form	Description	Filing Group	View
04/21/16	DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Proxy Filings	View HTML 0001564590-16-016447.pdf 0001564590-16-016447.rtf 0001564590-16-016447.xls
04/21/16	DEFA14A	Additional proxy soliciting materials - definitive	Proxy Filings	View HTML 0001564590-16-016456.pdf 0001564590-16-016456.rtf 0001564590-16-016456.xls
04/21/16	DEFA14A	Additional proxy soliciting materials - definitive	Proxy Filings	View HTML 0000950123-16-015930.pdf 0000950123-16-015930.rtf 0000950123-16-015930.xls
04/20/16	8-K	Report of unscheduled material events or corporate event	Current Reports	View HTML 0001564590-16-016380.pdf 0001564590-16-016380.rtf 0001564590-16-016380.xls
04/20/16	8-K	Report of unscheduled material events or corporate event	Current Reports	View HTML 0001564590-16-016415.pdf 0001564590-16-016415.rtf 0001564590-16-016415.xls
04/19/16	4	Statement of changes in beneficial ownership of securities	3,4,5	View HTML 0001209191-16-114835.pdf 0001209191-16-114835.rtf 0001209191-16-114835.xls
04/18/16	8-K	Report of unscheduled material events or corporate event	Current Reports	View HTML 0001564590-16-016322.pdf 0001564590-16-016322.rtf 0001564590-16-016322.xls
03/17/16	4	Statement of changes in beneficial ownership of securities	3,4,5	View HTML 0001209191-16-109104.pdf 0001209191-16-109104.rtf 0001209191-16-109104.xls
03/15/16	8-K/A	Amendment to a previously filed 8-K	Current Reports	View HTML 0001564590-16-014839.pdf 0001564590-16-014839.rtf 0001564590-16-014839.xls
03/03/16	8-K	Report of unscheduled material events or corporate event	Current Reports	View HTML 0001564590-16-014002.pdf 0001564590-16-014002.rtf 0001564590-16-014002.xls