BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q3 2024
Shares 63,425 Value ($000) $0 Avg Close — Range —
Q2 2024
Shares 54,714 Value ($000) $0 Avg Close — Range —
Q1 2024
Shares 54,714 Value ($000) $0 Avg Close — Range —
Q4 2023
Shares 25,601 Value ($000) $0 Avg Close — Range —
Q3 2023
Shares 23,195 Value ($000) $0 Avg Close — Range —
Q2 2023
Shares 43,313 Value ($000) $0 Avg Close — Range —
Q1 2023
Shares 34,089 Value ($000) $0 Avg Close — Range —
Q4 2022
Shares 29,149 Value ($000) $0 Avg Close — Range —
Q3 2022
Shares 28,219 Value ($000) $179 Avg Close — Range —
Q2 2022
Shares 21,191 Value ($000) $88 Avg Close — Range —
Q1 2022
Shares 20,684 Value ($000) $100 Avg Close — Range —
Q4 2021
Shares 19,180 Value ($000) $192 Avg Close — Range —
Q3 2021
Shares 28,254 Value ($000) $540 Avg Close — Range —
Q2 2021
Shares 28,195 Value ($000) $902 Avg Close — Range —
Q1 2021
Shares 951,840 Value ($000) $28,698 Avg Close — Range —
Q4 2020
Shares 1,033,820 Value ($000) $44,733 Avg Close — Range —
Q3 2020
Shares 963,412 Value ($000) $51,976 Avg Close — Range —
Q2 2020
Shares 1,440,641 Value ($000) $87,937 Avg Close — Range —
Q1 2020
Shares 1,307,476 Value ($000) $60,092 Avg Close — Range —
Q4 2019
Shares 1,660,862 Value ($000) $145,741 Avg Close — Range —
Q3 2019
Shares 1,317,037 Value ($000) $120,930 Avg Close — Range —
Q2 2019
Shares 1,420,760 Value ($000) $180,721 Avg Close — Range —
Q1 2019
Shares 1,535,210 Value ($000) $241,535 Avg Close — Range —
Q4 2018
Shares 1,271,545 Value ($000) $126,137 Avg Close — Range —
Q3 2018
Shares 2,656,969 Value ($000) $387,917 Avg Close — Range —
Q2 2018
Shares 2,825,093 Value ($000) $443,398 Avg Close — Range —
Q1 2018
Shares 2,847,222 Value ($000) $486,163 Avg Close — Range —
Q4 2017
Shares 2,857,747 Value ($000) $508,965 Avg Close — Range —
Q3 2017
Shares 2,736,626 Value ($000) $375,876 Avg Close — Range —
Q2 2017
Shares 2,918,472 Value ($000) $306,585 Avg Close — Range —
Q1 2017
Shares 3,076,847 Value ($000) $279,685 Avg Close — Range —
Q4 2016
Shares 3,288,161 Value ($000) $202,880 Avg Close — Range —
Q3 2016
Shares 3,365,797 Value ($000) $228,134 Avg Close — Range —
Q2 2016
Shares 2,444,381 Value ($000) $105,817 Avg Close — Range —
Q1 2016
Shares 2,160,663 Value ($000) $91,828 Avg Close — Range —
Q4 2015
Shares 2,005,303 Value ($000) $128,781 Avg Close — Range —
Q3 2015
Shares 1,830,380 Value ($000) $156,589 Avg Close — Range —
Q2 2015
Shares 1,791,241 Value ($000) $301,591 Avg Close — Range —
Q1 2015
Shares 1,921,268 Value ($000) $232,032 Avg Close — Range —
Q4 2014
Shares 1,516,944 Value ($000) $139,134 Avg Close — Range —
Q3 2014
Shares 1,067,271 Value ($000) $38,294 Avg Close — Range —
Q1 2014
Shares 178,585 Value ($000) $4,061 Avg Close — Range —
Q4 2013
Shares 483,617 Value ($000) $10,146 Avg Close — Range —