BLUEBIRD BIO INC

CUSIP: 09609G100 Class: Common Stock

Casdin Capital, LLC's Holding History (CIK: 0001534261)

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

Q4 2020
Shares 915,000 Value ($000) $39,592 Avg Close — Range —
Q3 2020
Shares 915,000 Value ($000) $49,364 Avg Close — Range —
Q2 2020
Shares 1,105,000 Value ($000) $67,449 Avg Close — Range —
Q1 2020
Shares 1,105,000 Value ($000) $50,786 Avg Close — Range —
Q4 2019
Shares 970,000 Value ($000) $85,118 Avg Close — Range —
Q3 2019
Shares 612,500 Value ($000) $56,239,750 Avg Close — Range —
Q2 2019
Shares 372,500 Value ($000) $47,382,000 Avg Close — Range —
Q1 2019
Shares 357,500 Value ($000) $56,245 Avg Close — Range —
Q4 2018
Shares 330,000 Value ($000) $32,736 Avg Close — Range —
Q3 2018
Shares 258,000 Value ($000) $37,668 Avg Close — Range —
Q2 2018
Shares 200,000 Value ($000) $31,390 Avg Close — Range —
Q1 2018
Shares 145,000 Value ($000) $24,759 Avg Close — Range —
Q4 2017
Shares 145,000 Value ($000) $25,825 Avg Close — Range —
Q3 2017
Shares 145,000 Value ($000) $19,916 Avg Close — Range —
Q2 2017
Shares 65,000 Value ($000) $6,828 Avg Close — Range —
Q1 2017
Shares 25,500 Value ($000) $2,318 Avg Close — Range —
Q4 2016
Shares 82,500 Value ($000) $5,090 Avg Close — Range —
Q3 2016
Shares 60,000 Value ($000) $4,067 Avg Close — Range —
Q2 2016
Shares 122,500 Value ($000) $5,303 Avg Close — Range —
Q1 2016
Shares 120,000 Value ($000) $5,100 Avg Close — Range —
Q4 2015
Shares 100,000 Value ($000) $6,422 Avg Close — Range —