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

Top Sellers

1
TCP
Tourbillon Capital Partners
New York
$0
2
PC
Passport Capital
California
$0
3
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
$17.1M
4
Two Sigma Investments
Two Sigma Investments
New York
$0
5
KCM
Kingdon Capital Management
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
SEI Investments
176
SEI Investments
Pennsylvania
$28K -$11.2K -10 -29%
Northwestern Mutual Wealth Management
177
Northwestern Mutual Wealth Management
Wisconsin
$26K – – –
ST
178
Spot Trading
Illinois
$25K +$25K +23 New
BFEC
179
Benjamin F. Edwards & Company
Missouri
$17K – – –
DADC
180
D.A. Davidson & Co
Montana
$17K +$17K +15 New
Royal Bank of Canada
181
Royal Bank of Canada
Ontario, Canada
$12K -$181K -166 -94%
Nuveen Asset Management
182
Nuveen Asset Management
Illinois
$9.46K +$903 +815 +11%
MFS
183
MSI Financial Services
Massachusetts
$9K +$9K +8 New
AP
184
Atwood & Palmer
Missouri
$8K +$8K +7 New
IF
185
Ironwood Financial
Arizona
$6K -$4K -4 -40%
CFA
186
CT Financial Advisors
Pennsylvania
$4.28K – – –
NFG
187
Next Financial Group
Texas
$4K -$16K -16 -80%
TDC
188
Thompson Davis & Co
Virginia
$3K – – –
EFSCE
189
Enterprise Financial Services Corp (EFSC)
Missouri
$3K – – –
FAM
190
Fortaleza Asset Management
Illinois
$1K -$151K -151 -99%
BCFS
191
Butensky & Cohen Financial Security
Florida
$1K +$1K +1 New
Manulife (Manufacturers Life Insurance)
192
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$79 – – –
TCP
193
Tourbillon Capital Partners
New York
– -$42.1M -19,300 Closed
PC
194
Passport Capital
California
– -$36.2M -16,621 Closed
Two Sigma Investments
195
Two Sigma Investments
New York
– -$32.6M -14,939 Closed
KCM
196
Kingdon Capital Management
New York
– -$25M -11,473 Closed
PHS
197
PFM Health Sciences
California
– -$21.4M -9,818 Closed
ARTA
198
A.R.T. Advisors
New York
– -$10.6M -4,873 Closed
HRCM
199
Hood River Capital Management
Florida
– -$9.91M -4,545 Closed
HCM
200
Highbridge Capital Management
New York
– -$9.78M -4,483 Closed
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