BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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176 hedge funds and large institutions have $309M invested in bluebird bio in 2023 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 70 increasing their positions, 41 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
176
Holders Change
-7
Holders Change %
-3.83%
% of All Funds
2.82%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
24
Increased
70
Reduced
41
Closed
31
Calls
$3.48M
Puts
$3.97M
Net Calls
-$489K
Net Calls Change
-$4.06M

Top Buyers

1
TCM
Tang Capital Management
California
$31.4M
2
State Street
State Street
Massachusetts
$56.5M
3
PHS
PFM Health Sciences
California
$14.6M
4
DM
Deerfield Management
New York
$6.92M
5
PAMS
Pictet Asset Management (Switzerland)
Switzerland
$9.87M

Top Sellers

1
Adage Capital Partners
Adage Capital Partners
Massachusetts
$0
2
Nuveen Asset Management
Nuveen Asset Management
Illinois
$936K
3
HF
HRT Financial
New York
$0
4
Invesco
Invesco
Georgia
$275K
5
WP
Woodline Partners
California
$2.51M
Name Holding Trade Value Shares
Change 		Shares
Change %
Swiss National Bank
51
Swiss National Bank
Switzerland
$707K +$114K +1,800 +19%
Federated Hermes
52
Federated Hermes
Pennsylvania
$699K -$509 -8 -0.1%
Deutsche Bank
53
Deutsche Bank
Germany
$667K +$76.7K +1,206 +13%
BC
54
Birchview Capital
Vermont
$633K +$322K +5,060 +103%
SXL
55
Summit X LLC
Missouri
$610K +$610K +9,585 New
SFI
56
Susquehanna Fundamental Investments
Pennsylvania
$602K – – –
RhumbLine Advisers
57
RhumbLine Advisers
Massachusetts
$522K +$111K +1,741 +27%
Group One Trading
58
Group One Trading
Illinois
$512K +$512K +8,046 New
California State Teachers Retirement System (CalSTRS)
59
California State Teachers Retirement System (CalSTRS)
California
$409K +$91K +1,431 +29%
Fidelity Investments
60
Fidelity Investments
Massachusetts
$347K +$1.34K +21 +0.4%
HWAM
61
Hennion & Walsh Asset Management
New Jersey
$319K -$8.97K -141 -3%
GCM
62
Ghisallo Capital Management
Massachusetts
$318K +$318K +5,000 New
Russell Investments Group
63
Russell Investments Group
United Kingdom
$314K +$109K +1,716 +53%
AllianceBernstein
64
AllianceBernstein
Tennessee
$314K -$4.96K -78 -2%
GCP
65
GSA Capital Partners
United Kingdom
$311K +$269K +4,224 +637%
Los Angeles Capital Management
66
Los Angeles Capital Management
California
$304K -$97.3K -1,529 -24%
State of Wisconsin Investment Board
67
State of Wisconsin Investment Board
Wisconsin
$302K +$56K +880 +23%
EFM
68
E Fund Management
China
$293K +$114K +1,785 +63%
Invesco
69
Invesco
Georgia
$275K -$2.3M -36,212 -89%
AQR Capital Management
70
AQR Capital Management
Connecticut
$252K +$128K +2,023 +103%
Ameriprise
71
Ameriprise
Minnesota
$248K +$85K +1,337 +52%
BFM
72
Boothbay Fund Management
New York
$230K -$223K -3,511 -49%
Ohio Public Employees Retirement System (OPERS)
73
Ohio Public Employees Retirement System (OPERS)
Ohio
$218K – – –
NC
74
NinePointTwo Capital
California
$188K +$84.1K +1,325 +81%
MIM
75
MetLife Investment Management
New Jersey
$173K +$34.7K +545 +25%
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