BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q1 2023
Shares 2,175,000 Value ($000) $6,917 Avg Close — Range —
Q2 2021
Shares 480,300 Value ($000) $15,360 Avg Close — Range —
Q1 2021
Shares 480,300 Value ($000) $14,481 Avg Close — Range —
Q3 2018
Shares 61,435 Value ($000) $8,970 Avg Close — Range —
Q2 2018
Shares 113,000 Value ($000) $17,735 Avg Close — Range —
Q1 2018
Shares 41,000 Value ($000) $7,001 Avg Close — Range —
Q4 2017
Shares 80,000 Value ($000) $14,248 Avg Close — Range —
Q1 2017
Shares 107,064 Value ($000) $9,732 Avg Close — Range —
Q4 2016
Shares 302,027 Value ($000) $18,635 Avg Close — Range —
Q3 2016
Shares 224,000 Value ($000) $15,183 Avg Close — Range —
Q2 2016
Shares 338,085 Value ($000) $14,636 Avg Close — Range —
Q3 2015
Shares 483,000 Value ($000) $41,321 Avg Close — Range —
Q2 2015
Shares 326,783 Value ($000) $55,020 Avg Close — Range —
Q1 2015
Shares 631,309 Value ($000) $76,243 Avg Close — Range —
Q4 2014
Shares 850,932 Value ($000) $78,047 Avg Close — Range —
Q3 2014
Shares 1,258,687 Value ($000) $45,162 Avg Close — Range —
Q2 2014
Shares 1,075,268 Value ($000) $41,473 Avg Close — Range —
Q1 2014
Shares 414,474 Value ($000) $9,425 Avg Close — Range —
Q4 2013
Shares 423,224 Value ($000) $8,879 Avg Close — Range —
Q3 2013
Shares 423,224 Value ($000) $11,410 Avg Close — Range —