BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

Back to rankings

187 hedge funds and large institutions have $1.71B invested in bluebird bio in 2016 Q1 according to their latest regulatory filings, with 35 funds opening new positions, 81 increasing their positions, 48 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
187
Holders Change
-6
Holders Change %
-3.11%
% of All Funds
4.99%
Holding in Top 10
4
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+33.33%
% of All Funds
0.11%
New
35
Increased
81
Reduced
48
Closed
38
Calls
$16.8M
Puts
$31M
Net Calls
-$14.2M
Net Calls Change
-$1.39M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$51.1M
2
GPP
Great Point Partners
Connecticut
+$16.7M
3
ACH
ArrowMark Colorado Holdings
Colorado
+$10.7M
4
State Street
State Street
Massachusetts
+$10.5M
5
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$10.4M

Top Sellers

1
PHS
PFM Health Sciences
California
-$42.9M
2
Capital World Investors
Capital World Investors
California
-$31.2M
3
Ameriprise
Ameriprise
Minnesota
-$16.7M
4
Capital Fund Management (CFM)
Capital Fund Management (CFM)
France
-$16.6M
5
State of Tennessee, Department of Treasury
State of Tennessee, Department of Treasury
Tennessee
-$12.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
SSA
126
Schonfeld Strategic Advisors
New York
$370K +$370K +671 New
FRM
127
Fox Run Management
Connecticut
$361K +$361K +656 New
Public Employees Retirement Association of Colorado
128
Public Employees Retirement Association of Colorado
Colorado
$351K +$56.1K +102 +19%
UBS Group
129
UBS Group
Switzerland
$293K -$5.91M -10,730 -95%
URS
130
Utah Retirement Systems
Utah
$272K – – –
QC
131
QCM Cayman
Texas
$256K +$58.9K +107 +30%
OAC
132
OMERS Administration Corp
Ontario, Canada
$255K +$4.41K +8 +2%
CL
133
Croft-Leominster
Maryland
$255K +$255K +463 New
PAM
134
Paradigm Asset Management
New York
$223K -$29.8K -54 -12%
Barclays
135
Barclays
United Kingdom
$222K +$55.4K +102 +33%
CCMH
136
Cornerstone Capital Management Holdings
New York
$217K -$272K -493 -56%
WS
137
Wedbush Securities
California
$213K +$10.5K +19 +5%
CWG
138
C WorldWide Group
Denmark
$212K – – –
RFC
139
Russell Frank Company
Washington
$203K -$28.1K -51 -12%
BlackRock
140
BlackRock
New York
$194K +$150K +273 +341%
VEA
141
Virtus ETF Advisers
New York
$181K +$181K +328 New
Teacher Retirement System of Texas
142
Teacher Retirement System of Texas
Texas
$173K +$41.2K +75 +31%
ST
143
Spot Trading
Illinois
$173K +$165K +300 +2,143%
PAM
144
Panagora Asset Management
Massachusetts
$160K +$94.9K +172 +146%
WA
145
Winfield Associates
Ohio
$148K +$548 +1 +0.4%
Nisa Investment Advisors
146
Nisa Investment Advisors
Missouri
$140K +$140K +255 New
Canada Life
147
Canada Life
Manitoba, Canada
$139K – – –
Legal & General Group
148
Legal & General Group
United Kingdom
$123K +$29.2K +53 +31%
MLICM
149
Metropolitan Life Insurance Company (MetLife)
New York
$114K – – –
SEC
150
Seven Eight Capital
New York
$108K +$108K +196 New
4 5
6
7 8