BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

ARTHUR M. COHEN & ASSOCIATES, LLC's Holding History (CIK: 0001692252)

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

Q2 2019
Shares 1,606 Value ($000) $205 Avg Close — Range —
Q1 2019
Shares 3,212 Value ($000) $505 Avg Close — Range —
Q4 2018
Shares 3,213 Value ($000) $469 Avg Close — Range —
Q3 2018
Shares 3,213 Value ($000) $469 Avg Close — Range —
Q2 2018
Shares 3,213 Value ($000) $504 Avg Close — Range —
Q1 2018
Shares 3,213 Value ($000) $519 Avg Close — Range —
Q4 2017
Shares 3,213 Value ($000) $572 Avg Close — Range —
Q2 2017
Shares 3,213 Value ($000) $338 Avg Close — Range —
Q3 2014
Shares 3,213 Value ($000) $441 Avg Close — Range —