BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

GILDER GAGNON HOWE & CO LLC's Holding History (CIK: 0000902464)

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

Q4 2020
Shares 251 Value ($000) $11 Avg Close — Range —
Q3 2020
Shares 441,638 Value ($000) $23,826 Avg Close — Range —
Q2 2020
Shares 612,464 Value ($000) $37,385 Avg Close — Range —
Q1 2020
Shares 553,361 Value ($000) $25,432 Avg Close — Range —
Q4 2019
Shares 510,113 Value ($000) $44,762 Avg Close — Range —
Q3 2019
Shares 31,761 Value ($000) $2,916 Avg Close — Range —
Q2 2019
Shares 39,500 Value ($000) $5,024 Avg Close — Range —
Q1 2019
Shares 38,929 Value ($000) $6,125 Avg Close — Range —
Q4 2018
Shares 15,443 Value ($000) $1,532 Avg Close — Range —
Q3 2018
Shares 218,511 Value ($000) $31,903 Avg Close — Range —
Q2 2018
Shares 138,366 Value ($000) $21,717 Avg Close — Range —
Q1 2018
Shares 152,893 Value ($000) $26,106 Avg Close — Range —
Q4 2017
Shares 6,880 Value ($000) $1,225 Avg Close — Range —
Q2 2016
Shares 104,682 Value ($000) $4,532 Avg Close — Range —
Q1 2016
Shares 110,947 Value ($000) $4,715 Avg Close — Range —
Q4 2015
Shares 295,327 Value ($000) $18,966 Avg Close — Range —
Q3 2015
Shares 300,456 Value ($000) $25,704 Avg Close — Range —
Q2 2015
Shares 260,142 Value ($000) $43,800 Avg Close — Range —
Q1 2015
Shares 41,768 Value ($000) $5,044 Avg Close — Range —
Q4 2014
Shares 5,430 Value ($000) $498 Avg Close — Range —
Q3 2014
Shares 4,203 Value ($000) $151 Avg Close — Range —
Q2 2014
Shares 4,369 Value ($000) $169 Avg Close — Range —