BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q3 2020
Shares 50 Value ($000) $3 Avg Close — Range —
Q2 2020
Shares 50 Value ($000) $3 Avg Close — Range —
Q4 2019
Shares 50 Value ($000) $4 Avg Close — Range —
Q1 2018
Shares 29,019 Value ($000) $4,955 Avg Close — Range —
Q4 2017
Shares 85,488 Value ($000) $15,225 Avg Close — Range —
Q3 2017
Shares 183,512 Value ($000) $25,205 Avg Close — Range —
Q2 2017
Shares 196,174 Value ($000) $20,608 Avg Close — Range —
Q1 2017
Shares 63,896 Value ($000) $5,808 Avg Close — Range —
Q4 2016
Shares 164,940 Value ($000) $10,177 Avg Close — Range —
Q3 2016
Shares 373,554 Value ($000) $25,319 Avg Close — Range —
Q2 2016
Shares 194,144 Value ($000) $8,404 Avg Close — Range —
Q1 2016
Shares 260,879 Value ($000) $11,087 Avg Close — Range —
Q4 2015
Shares 230,252 Value ($000) $14,787 Avg Close — Range —
Q3 2015
Shares 69,769 Value ($000) $5,969 Avg Close — Range —
Q2 2015
Shares 60,967 Value ($000) $10,265 Avg Close — Range —
Q1 2015
Shares 82,524 Value ($000) $10,958 Avg Close — Range —
Q4 2014
Shares 219,046 Value ($000) $20,091 Avg Close — Range —
Q3 2014
Shares 267,390 Value ($000) $9,594 Avg Close — Range —