BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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192 hedge funds and large institutions have $3.12B invested in bluebird bio in 2015 Q3 according to their latest regulatory filings, with 21 funds opening new positions, 93 increasing their positions, 59 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
192
Holders Change
-43
Holders Change %
-18.3%
% of All Funds
5.37%
Holding in Top 10
4
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-50%
% of All Funds
0.11%
New
21
Increased
93
Reduced
59
Closed
63
Calls
$59.5M
Puts
$64M
Net Calls
-$4.52M
Net Calls Change
-$9.39M

Top Buyers

1
Baillie Gifford & Co
1
Baillie Gifford & Co
United Kingdom
$409M
2
Viking Global Investors
2
Viking Global Investors
Connecticut
$52.7M
3
O
3
OppenheimerFunds
New York
$96.5M
4
First Trust Advisors
4
First Trust Advisors
Illinois
$28.2M
5
O
5
OrbiMed
New York
$102M

Top Sellers

1
TCP
1
Tourbillon Capital Partners
New York
$0
2
PC
2
Passport Capital
California
$0
3
Lord, Abbett & Co
3
Lord, Abbett & Co
New Jersey
$17.1M
4
Two Sigma Investments
4
Two Sigma Investments
New York
$0
5
KCM
5
Kingdon Capital Management
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
Principal Financial Group
101
Principal Financial Group
Iowa
$1.76M -$454K -410 -21%
BAMS
102
Bellevue Asset Management (Switzerland)
Switzerland
$1.75M +$43.2K +39 +3%
WC
103
Woodstock Corp
Massachusetts
$1.68M – – –
AllianceBernstein
104
AllianceBernstein
Tennessee
$1.67M +$44.3K +40 +3%
BJL
105
Brighton Jones LLC
Washington
$1.59M +$221K +199 +16%
BIM
106
BlackRock Investment Management
Delaware
$1.5M -$333K -301 -18%
Ohio Public Employees Retirement System (OPERS)
107
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.49M -$578K -522 -28%
EIM
108
Essex Investment Management
Massachusetts
$1.41M – – –
VOYA Investment Management
109
VOYA Investment Management
Georgia
$1.39M +$96.4K +87 +7%
Allianz Asset Management
110
Allianz Asset Management
Germany
$1.39M -$849K -766 -38%
CCMH
111
Cornerstone Capital Management Holdings
New York
$1.23M +$1.23M +1,106 New
FLAM
112
First Light Asset Management
Minnesota
$1.17M +$173K +156 +17%
FCM
113
Frontier Capital Management
Massachusetts
$1.14M -$744K -671 -39%
PP
114
Paloma Partners
Connecticut
$1.13M -$2.73M -2,467 -71%
Jane Street
115
Jane Street
New York
$996K -$753K -680 -43%
Barclays
116
Barclays
United Kingdom
$922K +$467K +423 +102%
SG Americas Securities
117
SG Americas Securities
New York
$782K +$719K +649 +1,139%
FT
118
Fiduciary Trust
Massachusetts
$770K -$3.08M -2,779 -80%
PG
119
PEAK6 Group
Illinois
$727K +$727K +656 New
VKH
120
Virtu KCG Holdings
New York
$724K +$325K +293 +81%
PPA
121
Parametric Portfolio Associates
Washington
$708K -$394K -356 -36%
BA
122
BlackRock Advisors
Delaware
$704K -$3.76M -3,391 -84%
Federated Hermes
123
Federated Hermes
Pennsylvania
$684K – – –
GPCM
124
Granite Point Capital Management
Massachusetts
$684K +$684K +618 New
SCM
125
Stevens Capital Management
Pennsylvania
$634K -$152K -137 -19%
3 4
5
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