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Janus Henderson Group PLC

SEC CIK
0001274173
Latest filing
May 18, 2026

BLUE holding history

bluebird bio, Inc. in every 13F filed by Janus Henderson Group PLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

BLUE overviewAll 13F holders of BLUEFull Q1 2026 holdings

Shares (Q4 2023)
0
Sold out in Q4 2023
Value
$0
% of portfolio
0.0%
Quarters held
6
Since Q4 2021
Holdings of BLUE by Janus Henderson Group PLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q4 20230$00.0%−40,598−100.0%Sold outHolders
Q3 202340,598$123.2K<0.1%+30.0%AddedHolders
Q2 202340,595$133.4K<0.1%−43−0.1%ReducedHolders
Q1 202340,638$130.2K<0.1%+18,690+85.2%AddedHolders
Q4 202221,948$152.0K<0.1%+21,948NewHolders
Q2 20220$00.0%−13,648−100.0%Sold outHolders
Q1 202213,648$66.0K<0.1%+17+0.1%AddedHolders
Q4 202113,631$136.0K<0.1%+13,631NewHolders