BLUE

bluebird bio

Delisted

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

247 hedge funds and large institutions have $2.78B invested in bluebird bio in 2020 Q1 according to their latest regulatory filings, with 30 funds opening new positions, 96 increasing their positions, 75 reducing their positions, and 55 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

less funds holding

Funds holding:

31% less call options, than puts

Call options by funds: $24.2M | Put options by funds: $35.1M

45% less first-time investments, than exits

New positions opened: 30 | Existing positions closed: 55

47% less capital invested

Capital invested by funds: $5.27B → $2.78B (-$2.49B)

Holders
247
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$24.2M
Puts
$35.1M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
101
$1.13M
102
$1.09M
103
$1.07M
104
$1.04M
105
$1.02M
106
$1.01M
107
$990K
108
$965K
109
$955K
110
$910K
111
$878K
112
$873K
113
$839K
114
$780K
115
$772K
116
$761K
117
$760K
118
$733K
119
$698K
120
$640K
121
$636K
122
$635K
123
$635K
124
$597K
125
$568K