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 %
AWM
276
Avior Wealth Management
Nebraska
$4K – – –
EARNEST Partners
277
EARNEST Partners
Georgia
$4K – – –
PA
278
Parallel Advisors
California
$3K -$3K -1 -50%
SIAS
279
Shine Investment Advisory Services
Colorado
$3K – – –
FMP
280
Financial Management Professionals
Texas
$3K – – –
CAW
281
Cornerstone Advisors (Washington)
Washington
$3K +$3K +2 New
WSTAM
282
Wilbanks Smith & Thomas Asset Management
Virginia
$3K +$3K +2 New
TWA
283
TCI Wealth Advisors
Arizona
$2K – – –
PAI
284
Pittenger & Anderson Inc
Nebraska
$2K – – –
EFSCE
285
Enterprise Financial Services Corp (EFSC)
Missouri
$2K +$2K +1 New
SFSIG
286
San Francisco Sentry Investment Group
California
$1K – – –
PCP
287
Proficio Capital Partners
Massachusetts
$1K – – –
PCG
288
Private Capital Group
Connecticut
$1K +$1K +1 New
AMCA
289
Arthur M. Cohen & Associates
Illinois
$469 – – –
MWNA
290
Marshall Wace North America
New York
– -$29M -14,264 Closed
PP
291
Paloma Partners
Connecticut
– -$22.4M -11,034 Closed
Squarepoint
292
Squarepoint
New York
– -$16.8M -8,273 Closed
Adage Capital Partners
293
Adage Capital Partners
Massachusetts
– -$15.3M -7,512 Closed
TCP
294
Tourbillon Capital Partners
New York
– -$14.1M -6,948 Closed
Alyeska Investment Group
295
Alyeska Investment Group
Illinois
– -$10.3M -5,071 Closed
SI
296
Sofinnova Investments
California
– -$8.69M -4,275 Closed
NIP
297
Nicholas Investment Partners
California
– -$6.7M -3,297 Closed
Simplex Trading
298
Simplex Trading
Illinois
– -$3.61M -1,776 Closed
Axa
299
Axa
France
– -$3.25M -1,598 Closed
SGA
300
Sector Gamma AS
Norway
– -$2.67M -1,312 Closed
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