BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

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

Q3 2019
Shares 3 Value ($000) $0 Avg Close — Range —
Q2 2019
Shares 3 Value ($000) $0 Avg Close — Range —
Q4 2017
Shares 10 Value ($000) $2 Avg Close — Range —