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 %
PIM
26
Platinum Investment Management
Australia
$23.2M +$1.2M +2,145 +5%
UBS AM
27
UBS AM
Illinois
$21M +$6.54M +11,667 +45%
Massachusetts Financial Services
28
Massachusetts Financial Services
Massachusetts
$19.4M +$4.66M +8,313 +32%
SCM
29
Suvretta Capital Management
New York
$18.5M +$18.5M +32,972 New
CS
30
Candriam SCA
Luxembourg
$18.3M +$4.04M +7,215 +28%
Bessemer Group
31
Bessemer Group
New Jersey
$17.2M – – –
Fiera Capital (Canada)
32
Fiera Capital (Canada)
Quebec, Canada
$17.2M -$574K -1,024 -3%
Dimensional Fund Advisors
33
Dimensional Fund Advisors
Texas
$15.8M +$62.2K +111 +0.4%
Charles Schwab
34
Charles Schwab
California
$14.2M +$205K +365 +1%
Northern Trust
35
Northern Trust
Illinois
$13.6M -$202K -361 -1%
Bank of America
36
Bank of America
North Carolina
$13M -$5.77M -10,302 -31%
Wells Fargo
37
Wells Fargo
California
$12.5M +$1.07M +1,902 +9%
Bank of New York Mellon
38
Bank of New York Mellon
New York
$10.5M -$193K -345 -2%
BBA
39
Baker Bros. Advisors
New York
$9.82M -$1.08M -1,931 -10%
Russell Investments Group
40
Russell Investments Group
United Kingdom
$9.54M +$1.25M +2,222 +15%
Axa
41
Axa
France
$8.98M +$1.84M +3,283 +26%
Susquehanna International Group
42
Susquehanna International Group
Pennsylvania
$8.66M +$2.59M +4,616 +43%
TCM
43
TimesSquare Capital Management
New York
$8.22M -$26.7M -47,702 -76%
D.E. Shaw & Co
44
D.E. Shaw & Co
New York
$8.16M -$5.01M -8,937 -38%
PPA
45
Parametric Portfolio Associates
Washington
$7.87M +$2.39M +4,259 +44%
New York State Common Retirement Fund
46
New York State Common Retirement Fund
New York
$7.65M -$784K -1,398 -9%
Two Sigma Advisers
47
Two Sigma Advisers
New York
$7.63M -$2.84M -5,072 -27%
California Public Employees Retirement System
48
California Public Employees Retirement System
California
$6.68M +$708K +1,264 +12%
Swiss National Bank
49
Swiss National Bank
Switzerland
$6.48M +$129K +231 +2%
GLA
50
Great Lakes Advisors
Illinois
$5.85M -$6.81M -12,158 -54%
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