EcoR1 Capital’s bluebird bio BLUE Stock Holding History

EcoR1 Capital’s Portfolio BLUE Stock Details BLUE Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q4	–	Sell	-61,954	Closed	-$15.3M	–	78
2021 Q3	$15.3M	Buy	+61,954	New	+$17.7M	0.53%	28

Other funds holding BLUE

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return

Armistice Capital New York $8.17B AUM 68.82% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Credit Suisse Zurich, Switzerland $104B AUM 34.76% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

EcoR1 Capital's BLUE Position: Q4 2021 in Review

EcoR1 Capital sold out of bluebird bio (BLUE) in Q4 2021, closing a stake of 61,954 shares — an estimated $15.3M sold.

EcoR1 Capital first reported a position in BLUE in Q3 2021 and held it in 1 quarter. The position peaked at $15.3M in Q3 2021. 172 funds tracked by Wall St. Rank hold BLUE as of Q4 2021.

EcoR1 Capital reported no remaining bluebird bio position as of Q4 2021 after selling out during the quarter.
EcoR1 Capital sold 61,954 bluebird bio shares in Q4 2021, an estimated $15.3M.
EcoR1 Capital first reported a position in bluebird bio in Q3 2021 and held it in 1 quarter.
EcoR1 Capital's bluebird bio position peaked at $15.3M in Q3 2021.
172 funds tracked by Wall St. Rank held bluebird bio as of Q4 2021.

Based on EcoR1 Capital's 13F filing for Q4 2021, filed 14 Feb 2022.