BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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296 hedge funds and large institutions have $9.26B invested in bluebird bio in 2017 Q4 according to their latest regulatory filings, with 78 funds opening new positions, 96 increasing their positions, 97 reducing their positions, and 24 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
296
Holders Change
+53
Holders Change %
+21.81%
% of All Funds
6.72%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
78
Increased
96
Reduced
97
Closed
24
Calls
$256M
Puts
$170M
Net Calls
+$86.9M
Net Calls Change
+$34M

Top Buyers

1
Capital World Investors
Capital World Investors
California
+$113M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$93.1M
3
Two Sigma Advisers
Two Sigma Advisers
New York
+$79.7M
4
Capital Research Global Investors
Capital Research Global Investors
California
+$75.9M
5
Vanguard Group
Vanguard Group
Pennsylvania
+$65.8M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$232M
2
Balyasny Asset Management
Balyasny Asset Management
Illinois
-$53.9M
3
Wells Fargo
Wells Fargo
California
-$31.5M
4
State Street
State Street
Massachusetts
-$30M
5
UBS AM
UBS AM
Illinois
-$27.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
NFA
301
Nationwide Fund Advisors
Ohio
– -$7.78M -4,371 Closed
AA
302
ALPS Advisors
Colorado
– -$6.17M -3,466 Closed
CM
303
Crestline Management
Texas
– -$1.73M -972 Closed
SEC
304
Seven Eight Capital
New York
– -$1.72M -966 Closed
Simplex Trading
305
Simplex Trading
Illinois
– -$967K -544 Closed
NPC
306
National Planning Corporation
California
– -$709K -398 Closed
FRM
307
Fox Run Management
Connecticut
– -$604K -340 Closed
SG Americas Securities
308
SG Americas Securities
New York
– -$547K -307 Closed
TRCT
309
Tower Research Capital (TRC)
New York
– -$504K -283 Closed
AP
310
AHL Partners
United Kingdom
– -$415K -233 Closed
Stifel Financial
311
Stifel Financial
Missouri
– -$391K -220 Closed
CIBC Private Wealth Group
312
CIBC Private Wealth Group
Georgia
– -$381K -214 Closed
SCM
313
Sterling Capital Management
North Carolina
– -$351K -197 Closed
CIM
314
CIM Investment Management
Pennsylvania
– -$300K -168 Closed
DTL
315
Dynamic Technology Lab
Singapore
– -$292K -164 Closed
AI
316
Atria Investments
North Carolina
– -$210K -118 Closed
PCM
317
Prelude Capital Management
New York
– -$175K -99 Closed
NSIM
318
North Star Investment Management
Illinois
– -$21K -12 Closed
WAM
319
Wealthspire Advisors (Maryland)
Maryland
– -$14K -8 Closed
CWM
320
Catamount Wealth Management
Connecticut
– -$2K -1 Closed
NFG
321
Next Financial Group
Texas
– -$2K -1 Closed
OAM
322
Oppenheimer Asset Management
New York
– -$1K -1 Closed
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