BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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262 hedge funds and large institutions have $2.73B invested in bluebird bio in 2020 Q4 according to their latest regulatory filings, with 46 funds opening new positions, 93 increasing their positions, 86 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
262
Holders Change
-13
Holders Change %
-4.73%
% of All Funds
4.65%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
46
Increased
93
Reduced
86
Closed
57
Calls
$45.9M
Puts
$49.1M
Net Calls
-$3.22M
Net Calls Change
-$4.62M

Top Buyers

1
CS
Credit Suisse
Switzerland
+$36.6M
2
State Street
State Street
Massachusetts
+$24.6M
3
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$18.8M
4
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
+$18.5M
5
SCM
Suvretta Capital Management
New York
+$18.5M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$80.6M
2
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$29.6M
3
TCM
TimesSquare Capital Management
New York
-$26.7M
4
ACA
Anchor Capital Advisors
Massachusetts
-$21.4M
5
GGHC
Gilder Gagnon Howe & Co
New York
-$19.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
LFG
251
Larson Financial Group
Missouri
$1K – – –
TFM
252
TFC Financial Management
Massachusetts
$1K – – –
EFSCE
253
Enterprise Financial Services Corp (EFSC)
Missouri
$1K – – –
Kayne Anderson Rudnick Investment Management
254
Kayne Anderson Rudnick Investment Management
California
$1K +$1K +1 New
RWA
255
Ropes Wealth Advisors
Massachusetts
$1K +$1K +1 New
CAAS
256
Capital Asset Advisory Services
Michigan
$1K +$1K +1 New
VCG
257
Vantage Consulting Group
Virginia
$1K +$1K +1 New
TC
258
Truvestments Capital
Florida
$1K +$1K +2 New
Jones Financial Companies
259
Jones Financial Companies
Missouri
$1K +$1K +2 New
TPCW
260
TD Private Client Wealth
New York
$779 -$779 -1 -50%
ED
261
Exane Derivatives
France
$216 -$270 – –
AIG
262
American International Group
New York
$53 -$2 -3 -3%
ACA
263
Anchor Capital Advisors
Massachusetts
– -$21.4M -30,608 Closed
MP
264
Mangrove Partners
Connecticut
– -$15.3M -21,854 Closed
American Century Companies
265
American Century Companies
Missouri
– -$9.51M -13,603 Closed
RPAM
266
Rhenman & Partners Asset Management
Sweden
– -$5.82M -8,322 Closed
TCM
267
Tekla Capital Management
Massachusetts
– -$4.54M -6,500 Closed
PCM
268
Peregrine Capital Management
Minnesota
– -$4.26M -6,097 Closed
Los Angeles Capital Management
269
Los Angeles Capital Management
California
– -$2.75M -3,935 Closed
RCM
270
Ratan Capital Management
Florida
– -$2.32M -3,320 Closed
SG Americas Securities
271
SG Americas Securities
New York
– -$1.6M -2,289 Closed
GH
272
GAM Holding
Switzerland
– -$1.59M -2,270 Closed
Hudson Bay Capital Management
273
Hudson Bay Capital Management
Connecticut
– -$1.48M -2,123 Closed
PL
274
Polianta Ltd
Jersey
– -$1.13M -1,613 Closed
AG
275
Algert Global
California
– -$946K -1,353 Closed
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