BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

Capital World Investors's Holding History (CIK: 0001422849)

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

Q4 2020
Shares 3,127,163 Value ($000) $135,312 Avg Close — Range —
Q3 2020
Shares 3,471,543 Value ($000) $187,290 Avg Close — Range —
Q2 2020
Shares 3,470,784 Value ($000) $211,857 Avg Close — Range —
Q1 2020
Shares 4,340,938 Value ($000) $199,510 Avg Close — Range —
Q4 2019
Shares 5,266,990 Value ($000) $462,178 Avg Close — Range —
Q3 2019
Shares 5,199,930 Value ($000) $477,458 Avg Close — Range —
Q2 2019
Shares 4,409,093 Value ($000) $560,837 Avg Close — Range —
Q1 2019
Shares 4,024,783 Value ($000) $633,219 Avg Close — Range —
Q4 2018
Shares 3,712,781 Value ($000) $368,308 Avg Close — Range —
Q3 2018
Shares 3,425,687 Value ($000) $500,150 Avg Close — Range —
Q2 2018
Shares 2,493,755 Value ($000) $391,395 Avg Close — Range —
Q1 2018
Shares 2,100,755 Value ($000) $358,704 Avg Close — Range —
Q4 2017
Shares 1,767,755 Value ($000) $314,837 Avg Close — Range —
Q3 2017
Shares 1,133,755 Value ($000) $155,721 Avg Close — Range —
Q2 2017
Shares 1,106,255 Value ($000) $116,212 Avg Close — Range —
Q1 2017
Shares 1,106,255 Value ($000) $100,559 Avg Close — Range —
Q4 2016
Shares 625,000 Value ($000) $38,563 Avg Close — Range —
Q3 2016
Shares 752,000 Value ($000) $50,971 Avg Close — Range —
Q2 2016
Shares 937,000 Value ($000) $40,563 Avg Close — Range —
Q1 2016
Shares 1,340,000 Value ($000) $56,950 Avg Close — Range —
Q4 2015
Shares 2,075,000 Value ($000) $133,257 Avg Close — Range —
Q3 2015
Shares 1,313,000 Value ($000) $112,327 Avg Close — Range —
Q2 2015
Shares 1,358,000 Value ($000) $228,646 Avg Close — Range —
Q1 2015
Shares 1,358,000 Value ($000) $164,006 Avg Close — Range —
Q4 2014
Shares 818,000 Value ($000) $75,027 Avg Close — Range —