BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

FIRST TRUST ADVISORS LP's Holding History (CIK: 0001125816)

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

Q4 2021
Shares 5,204,825 Value ($000) $51,996 Avg Close — Range —
Q3 2021
Shares 2,300,025 Value ($000) $43,953 Avg Close — Range —
Q2 2021
Shares 2,187,379 Value ($000) $69,952 Avg Close — Range —
Q1 2021
Shares 1,393,803 Value ($000) $42,023 Avg Close — Range —
Q4 2020
Shares 1,165,429 Value ($000) $50,428 Avg Close — Range —
Q3 2020
Shares 1,154,846 Value ($000) $62,304 Avg Close — Range —
Q2 2020
Shares 1,170,234 Value ($000) $71,431 Avg Close — Range —
Q1 2020
Shares 578,931 Value ($000) $26,608 Avg Close — Range —
Q4 2019
Shares 566,412 Value ($000) $49,703 Avg Close — Range —
Q3 2019
Shares 438,578 Value ($000) $40,270 Avg Close — Range —
Q2 2019
Shares 842,121 Value ($000) $107,118 Avg Close — Range —
Q1 2019
Shares 763,308 Value ($000) $120,091 Avg Close — Range —
Q4 2018
Shares 747,929 Value ($000) $74,195 Avg Close — Range —
Q3 2018
Shares 601,883 Value ($000) $87,875 Avg Close — Range —
Q2 2018
Shares 368,708 Value ($000) $57,869 Avg Close — Range —
Q1 2018
Shares 300,450 Value ($000) $51,302 Avg Close — Range —
Q4 2017
Shares 26,871 Value ($000) $4,786 Avg Close — Range —
Q3 2017
Shares 33,043 Value ($000) $4,538 Avg Close — Range —
Q2 2017
Shares 22,491 Value ($000) $2,363 Avg Close — Range —
Q3 2015
Shares 329,842 Value ($000) $28,218 Avg Close — Range —