BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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303 hedge funds and large institutions have $9B invested in bluebird bio in 2018 Q1 according to their latest regulatory filings, with 56 funds opening new positions, 93 increasing their positions, 113 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
303
Holders Change
+7
Holders Change %
+2.36%
% of All Funds
6.95%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.05%
New
56
Increased
93
Reduced
113
Closed
44
Calls
$185M
Puts
$168M
Net Calls
+$17.5M
Net Calls Change
-$69.5M

Top Buyers

1
Capital International Investors
Capital International Investors
California
+$174M
2
Goldman Sachs
Goldman Sachs
New York
+$64.5M
3
Capital World Investors
Capital World Investors
California
+$56.9M
4
CGT
Capital Guardian Trust
California
+$49.9M
5
First Trust Advisors
First Trust Advisors
Illinois
+$46.7M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$52.9M
2
Franklin Resources
Franklin Resources
California
-$52.1M
3
1832 Asset Management
1832 Asset Management
Ontario, Canada
-$51M
4
MWNA
Marshall Wace North America
New York
-$47.3M
5
ACH
ArrowMark Colorado Holdings
Colorado
-$39.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
TWA
301
TCI Wealth Advisors
Arizona
$2K – – –
PCP
302
Proficio Capital Partners
Massachusetts
$2K – – –
ML
303
McAdam LLC
Pennsylvania
$1K – – –
IFAM
304
Institutional & Family Asset Management
Colorado
$1K +$1K +1 New
Nomura Holdings
305
Nomura Holdings
Japan
$245 -$42.4K -19,189 -99%
1832 Asset Management
306
1832 Asset Management
Ontario, Canada
– -$51M -22,674 Closed
MWNA
307
Marshall Wace North America
New York
– -$47.3M -20,500 Closed
ACH
308
ArrowMark Colorado Holdings
Colorado
– -$39.5M -17,103 Closed
LCM
309
Laurion Capital Management
New York
– -$26M -11,281 Closed
CCI
310
Columbus Circle Investors
– -$23.4M -10,151 Closed
Two Sigma Investments
311
Two Sigma Investments
New York
– -$15.6M -6,752 Closed
CAM
312
Cormorant Asset Management
Massachusetts
– -$14.2M -6,176 Closed
QIM
313
Quantitative Investment Management
Virginia
– -$8.92M -3,868 Closed
MIM
314
MetLife Investment Management
New Jersey
– -$3.94M -1,706 Closed
Macquarie Group
315
Macquarie Group
Australia
– -$3.4M -1,475 Closed
MCM
316
Moore Capital Management
New York
– -$3.28M -1,420 Closed
Alyeska Investment Group
317
Alyeska Investment Group
Illinois
– -$3.21M -1,390 Closed
PC
318
Polar Capital
United Kingdom
– -$3.12M -1,351 Closed
HI
319
HBK Investments
Texas
– -$2.67M -1,158 Closed
Millennium Management
320
Millennium Management
New York
– -$2.61M -1,133 Closed
PA
321
Perceptive Advisors
New York
– -$2.57M -1,112 Closed
PCM
322
Price Capital Management
Louisiana
– -$1.76M -765 Closed
TI
323
Trexquant Investment
Connecticut
– -$1.42M -616 Closed
MA
324
MYDA Advisors
New York
– -$712K -309 Closed
BCM
325
Bayesian Capital Management
New York
– -$671K -291 Closed
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