BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

Duquesne Family Office LLC's Holding History (CIK: 0001536411)

Note: Option positions (PUT/CALL) are excluded.

Q1 2015
Shares 184,082 Value ($000) $22,232 Avg Close — Range —
Q4 2014
Shares 355,400 Value ($000) $32,597 Avg Close — Range —