BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

FRED ALGER MANAGEMENT, LLC's Holding History (CIK: 0000003520)

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

Q2 2020
Shares 5,000 Value ($000) $305 Avg Close — Range —
Q4 2019
Shares 21,705 Value ($000) $1,905 Avg Close — Range —
Q2 2019
Shares 27,510 Value ($000) $3,499 Avg Close — Range —
Q1 2019
Shares 48,402 Value ($000) $7,615 Avg Close — Range —
Q4 2018
Shares 32,011 Value ($000) $3,175 Avg Close — Range —
Q3 2018
Shares 53,085 Value ($000) $7,750 Avg Close — Range —
Q2 2018
Shares 56,324 Value ($000) $8,840 Avg Close — Range —
Q1 2018
Shares 69,315 Value ($000) $11,836 Avg Close — Range —
Q4 2017
Shares 61,377 Value ($000) $10,931 Avg Close — Range —
Q3 2017
Shares 68,709 Value ($000) $9,437 Avg Close — Range —
Q2 2017
Shares 72,364 Value ($000) $7,602 Avg Close — Range —
Q1 2017
Shares 70,299 Value ($000) $6,390 Avg Close — Range —
Q4 2016
Shares 45,743 Value ($000) $2,822 Avg Close — Range —
Q3 2016
Shares 42,955 Value ($000) $2,911 Avg Close — Range —
Q2 2016
Shares 27,779 Value ($000) $1,203 Avg Close — Range —
Q1 2016
Shares 34,085 Value ($000) $1,449 Avg Close — Range —
Q4 2015
Shares 48,674 Value ($000) $3,126 Avg Close — Range —
Q3 2015
Shares 92,024 Value ($000) $7,873 Avg Close — Range —
Q2 2015
Shares 158,442 Value ($000) $26,677 Avg Close — Range —
Q1 2015
Shares 125,686 Value ($000) $15,179 Avg Close — Range —
Q4 2014
Shares 183,914 Value ($000) $16,869 Avg Close — Range —
Q3 2014
Shares 154,172 Value ($000) $5,532 Avg Close — Range —
Q2 2014
Shares 172,778 Value ($000) $6,664 Avg Close — Range —
Q1 2014
Shares 273,359 Value ($000) $6,216 Avg Close — Range —
Q4 2013
Shares 237,465 Value ($000) $4,982 Avg Close — Range —