CSS LLC’s bluebird bio BLUE Stock Holding History

CSS LLC’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
2025 Q2	–	Sell	-29,800	Closed	-$145K	–	994
2025 Q1	$145K	Buy	+29,800	New	+$179K	0.01%	753
2021 Q1	–	Sell	-1,544	Closed	-$865K	–	942
2020 Q4	$865K	Buy	+1,544	New	+$979K	0.03%	355

Other funds holding BLUE

Russell Investments Group London, United Kingdom $93.1B AUM 28.26% 1-Year Est. Return

Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return

IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

CSS LLC's BLUE Position: Q2 2025 in Review

CSS LLC sold out of bluebird bio (BLUE) in Q2 2025, closing a stake of 30,772 shares — an estimated $150K sold.

CSS LLC first reported a position in BLUE in Q4 2020 and held it in 2 quarters. The position peaked at $722K in Q4 2020. 3 funds tracked by Wall St. Rank hold BLUE as of Q2 2025.

CSS LLC reported no remaining bluebird bio position as of Q2 2025 after selling out during the quarter.
CSS LLC sold 30,772 bluebird bio shares in Q2 2025, an estimated $150K.
CSS LLC first reported a position in bluebird bio in Q4 2020 and held it in 2 quarters.
CSS LLC's bluebird bio position peaked at $722K in Q4 2020.
3 funds tracked by Wall St. Rank held bluebird bio as of Q2 2025.

Based on CSS LLC's 13F filing for Q2 2025, filed 14 Aug 2025.