BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

Back to rankings

210 hedge funds and large institutions have $3.8B invested in bluebird bio in 2015 Q1 according to their latest regulatory filings, with 59 funds opening new positions, 71 increasing their positions, 68 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
210
Holders Change
+41
Holders Change %
+24.26%
% of All Funds
5.6%
Holding in Top 10
4
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-42.86%
% of All Funds
0.11%
New
59
Increased
71
Reduced
68
Closed
18
Calls
$97.3M
Puts
$70M
Net Calls
+$27.3M
Net Calls Change
-$1.56M

Top Buyers

1
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
$155M
2
Vanguard Group
Vanguard Group
Pennsylvania
$167M
3
O
OrbiMed
New York
$66.5M
4
Capital World Investors
Capital World Investors
California
$164M
5
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$232M

Top Sellers

1
TRV
Third Rock Ventures
Massachusetts
$0
2
RCM
RA Capital Management
Massachusetts
$24.2M
3
FCM
Frontier Capital Management
Massachusetts
$30.2M
4
DM
Deerfield Management
New York
$76.2M
5
PHS
PFM Health Sciences
California
$24.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
AC
151
Ascend Capital
California
$555K +$555K +355 New
Legal & General Group
152
Legal & General Group
United Kingdom
$542K +$181K +114 +50%
TI
153
Trexquant Investment
Connecticut
$539K +$539K +345 New
Two Sigma Investments
154
Two Sigma Investments
New York
$471K -$1.24M -795 -73%
PCM
155
Prelude Capital Management
New York
$459K +$459K +294 New
PIM
156
Partner Investment Management
California
$447K -$803K -514 -64%
AIM
157
Advantage Investment Management
Iowa
$420K +$20.4K +13 +5%
SEI Investments
158
SEI Investments
Pennsylvania
$413K -$421K -269 -50%
VKH
159
Virtu KCG Holdings
New York
$402K +$402K +257 New
CIM
160
CIM Investment Management
Pennsylvania
$322K +$322K +206 New
Prudential Financial
161
Prudential Financial
New Jersey
$321K +$321K +205 New
Canada Life
162
Canada Life
Manitoba, Canada
$313K – – –
AB
163
Amalgamated Bank
New York
$303K +$303K +194 New
FMT
164
First Mercantile Trust
Tennessee
$279K +$11K +7 +4%
AG
165
Aperio Group
California
$276K +$276K +177 New
M&T Bank
166
M&T Bank
New York
$270K +$270K +172 New
AIP
167
Ameritas Investment Partners
Nebraska
$263K +$263K +168 New
FAM
168
Fortaleza Asset Management
Illinois
$245K +$245K +156 New
WMSA
169
Weiss Multi-Strategy Advisers
New York
$242K -$3.4M -2,162 -93%
FBC
170
Fairfield, Bush & Co
Connecticut
$242K +$242K +154 New
FAB
171
First American Bank
Illinois
$232K +$232K +149 New
PAG
172
Private Advisor Group
New Jersey
$217K +$217K +139 New
William Blair & Company
173
William Blair & Company
Illinois
$210K +$210K +134 New
B
174
Baird
Wisconsin
$207K +$207K +133 New
WA
175
Winfield Associates
Ohio
$199K +$186K +119 +1,488%
5 6
7
8 9