BLUE

bluebird bio

Delisted

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

156 hedge funds and large institutions have $134M invested in bluebird bio in 2024 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 61 increasing their positions, 40 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

41% less call options, than puts

Call options by funds: $1.48M | Put options by funds: $2.49M

54% less first-time investments, than exits

New positions opened: 25 | Existing positions closed: 54

Holders
156
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
$1.48M
Puts
$2.49M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
51
$280K
52
$267K
53
$256K
54
$244K
55
$230K
56
$216K
57
$191K
58
$172K
59
$148K
60
$148K
61
$139K
62
$138K
63
$131K
64
$129K
65
$121K
66
$114K
67
$112K
68
$105K
69
$102K
70
$90K
71
$89.1K
72
$88.1K
73
$87.7K
74
$81K
75
$78.5K