BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

SABBY MANAGEMENT, LLC's Holding History (CIK: 0001535610)

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

Q4 2015
Shares 45,449 Value ($000) $2,919 Avg Close — Range —
Q3 2014
Shares 24,574 Value ($000) $882 Avg Close — Range —
Q1 2014
Shares 101,786 Value ($000) $2,315 Avg Close — Range —
Q4 2013
Shares 102,035 Value ($000) $2,141 Avg Close — Range —