BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

KINGDON CAPITAL MANAGEMENT, L.L.C.'s Holding History (CIK: 0001000097)

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

Q2 2015
Shares 148,615 Value ($000) $25,022 Avg Close — Range —
Q1 2015
Shares 47,900 Value ($000) $5,785 Avg Close — Range —
Q4 2014
Shares 188,600 Value ($000) $17,298 Avg Close — Range —
Q3 2014
Shares 207,000 Value ($000) $7,425 Avg Close — Range —
Q2 2014
Shares 132,000 Value ($000) $5,091 Avg Close — Range —