BLUE

bluebird bio

Delisted

BLUE was delisted on the 30th of May, 2025.

186 hedge funds and large institutions have $182M invested in bluebird bio in 2023 Q4 according to their latest regulatory filings, with 54 funds opening new positions, 63 increasing their positions, 39 reducing their positions, and 32 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

more ownership

Funds ownership:

3% more call options, than puts

Call options by funds: $5.42M | Put options by funds: $5.25M

33% less capital invested

Capital invested by funds: $272M → $182M (-$90.6M)

100% less funds holding in top 10

Funds holding in top 10: 10 (-1)

Holders
186
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$5.42M
Puts
$5.25M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
51
$642K
52
$628K
53
$580K
54
$509K
55
$471K
56
$443K
57
$427K
58
$406K
59
$349K
60
$324K
61
$317K
62
$288K
63
$263K
64
$259K
65
$247K
66
$233K
67
$229K
68
$207K
69
$161K
70
$156K
71
$155K
72
$152K
73
$149K
74
$138K
75
$138K