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
1
$19.1M
2
$12.4M
3
$12.1M
4
$11.1M
5
$9.54M
6
$7.85M
7
$5.51M
8
$4.71M
9
$4.6M
10
$4.35M
11
$4.13M
12
$4.02M
13
$3.8M
14
$3.64M
15
$3.45M
16
$3.35M
17
$3.28M
18
$3.27M
19
$3.01M
20
$2.97M
21
$2.82M
22
$2.76M
23
$2.42M
24
$2.36M
25
$2.35M