BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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288 hedge funds and large institutions have $8.48B invested in bluebird bio in 2018 Q3 according to their latest regulatory filings, with 37 funds opening new positions, 108 increasing their positions, 99 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
288
Holders Change
-19
Holders Change %
-6.19%
% of All Funds
6.59%
Holding in Top 10
2
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-50%
% of All Funds
0.05%
New
37
Increased
108
Reduced
99
Closed
54
Calls
$177M
Puts
$151M
Net Calls
+$25.9M
Net Calls Change
-$69.3M

Top Buyers

1
Capital International Investors
Capital International Investors
California
+$311M
2
Wellington Management Group
Wellington Management Group
Massachusetts
+$207M
3
Capital World Investors
Capital World Investors
California
+$136M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$88.4M
5
Capital Research Global Investors
Capital Research Global Investors
California
+$72.2M

Top Sellers

1
Goldman Sachs
Goldman Sachs
New York
-$54M
2
Millennium Management
Millennium Management
New York
-$53.8M
3
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$29.2M
4
MWNA
Marshall Wace North America
New York
-$29M
5
Citigroup
Citigroup
New York
-$26M
Name Holding Trade Value Shares
Change 		Shares
Change %
AI
226
Atria Investments
North Carolina
$216K +$216K +120 New
WG
227
Winton Group
United Kingdom
$214K -$47.3K -25 -18%
SG Americas Securities
228
SG Americas Securities
New York
$214K +$214K +113 New
SB
229
Suntrust Banks
Georgia
$210K -$7.57K -4 -3%
SEI Investments
230
SEI Investments
Pennsylvania
$199K -$2.37M -1,250 -92%
LTFS
231
Ladenburg Thalmann Financial Services
Florida
$182K +$9.48K +5 +5%
QI
232
QS Investors
New York
$176K -$997K -527 -85%
AIG
233
American International Group
New York
$174K +$9.46K +5 +6%
HIIFS
234
Harel Insurance Investments & Financial Services
Israel
$167K +$144K +77 +642%
AG
235
Advisor Group
Arizona
$158K -$263K -140 -63%
PNC Financial Services Group
236
PNC Financial Services Group
Pennsylvania
$152K -$133K -71 -47%
NIM
237
NuWave Investment Management
New Jersey
$143K +$141K +75 +7,500%
Mitsubishi UFJ Asset Management
238
Mitsubishi UFJ Asset Management
Japan
$118K +$118K +62 New
AF
239
Advisornet Financial
Minnesota
$117K – – –
OIA
240
OneDigital Investment Advisors
Kansas
$115K +$83K +44 +259%
BAM
241
Belpointe Asset Management
Nevada
$110K +$110K +58 New
SWP
242
Stratos Wealth Partners
Ohio
$106K +$106K +56 New
ClearBridge Investments
243
ClearBridge Investments
New York
$104K – – –
Twin Tree Management
244
Twin Tree Management
Texas
$89K -$1.53M -806 -94%
First Manhattan
245
First Manhattan
New York
$58K – – –
WT
246
Whittier Trust
California
$53K +$53K +28 New
IUHSA
247
Itau Unibanco Holding S.A.
Brazil
$44K +$9.57K +5 +28%
NAMA
248
Nikko Asset Management Americas
New York
$44K +$44K +23 New
RCM
249
Riverhead Capital Management
Delaware
$37K -$5.55K -3 -13%
GWM
250
Geneos Wealth Management
Colorado
$32K – – –
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