BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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278 hedge funds and large institutions have $3.94B invested in bluebird bio in 2020 Q2 according to their latest regulatory filings, with 71 funds opening new positions, 119 increasing their positions, 52 reducing their positions, and 39 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
278
Holders Change
+31
Holders Change %
+12.55%
% of All Funds
5.71%
Holding in Top 10
4
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+33.33%
% of All Funds
0.08%
New
71
Increased
119
Reduced
52
Closed
39
Calls
$39.6M
Puts
$46.1M
Net Calls
-$6.51M
Net Calls Change
+$4.37M

Top Buyers

1
Vanguard Group
Vanguard Group
Pennsylvania
+$136M
2
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$90.8M
3
Capital Research Global Investors
Capital Research Global Investors
California
+$78.3M
4
CCM
Camber Capital Management
Massachusetts
+$77.8M
5
BlackRock
BlackRock
New York
+$67.8M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$174M
2
Victory Capital Management
Victory Capital Management
Texas
-$117M
3
Citadel Advisors
Citadel Advisors
Florida
-$58.4M
4
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$56.8M
5
Capital World Investors
Capital World Investors
California
-$53.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
Russell Investments Group
51
Russell Investments Group
United Kingdom
$8.98M +$5.05M +6,398 +129%
Swiss National Bank
52
Swiss National Bank
Switzerland
$8.82M +$2.27M +2,872 +35%
Ameriprise
53
Ameriprise
Minnesota
$8.6M -$14M -17,731 -62%
SM
54
Senvest Management
New York
$8.16M +$8.16M +10,322 New
Axa
55
Axa
France
$8.16M +$8.16M +10,318 New
California Public Employees Retirement System
56
California Public Employees Retirement System
California
$8.03M +$1.14M +1,444 +17%
Two Sigma Advisers
57
Two Sigma Advisers
New York
$7.99M +$1.15M +1,451 +17%
MIM
58
Monashee Investment Management
Massachusetts
$7.94M +$7.94M +10,036 New
MP
59
Mangrove Partners
Connecticut
$7.91M +$7.91M +10,007 New
Principal Financial Group
60
Principal Financial Group
Iowa
$6.88M +$3.57M +4,515 +108%
Citadel Advisors
61
Citadel Advisors
Florida
$6.73M -$58.4M -73,794 -90%
California State Teachers Retirement System (CalSTRS)
62
California State Teachers Retirement System (CalSTRS)
California
$6.72M +$1.12M +1,418 +20%
AIMCA
63
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$6.64M +$1.06M +1,339 +19%
RPAM
64
Rhenman & Partners Asset Management
Sweden
$6.58M +$2.49M +3,150 +61%
GIM
65
Granahan Investment Management
Massachusetts
$6.47M +$6.47M +8,181 New
Barclays
66
Barclays
United Kingdom
$6.42M +$2.31M +2,924 +56%
IC
67
Ikarian Capital
Texas
$6.4M +$6.01M +7,594 +1,513%
Citigroup
68
Citigroup
New York
$5.57M +$89.3K +113 +2%
Morgan Stanley
69
Morgan Stanley
New York
$5.47M -$13.5M -17,074 -71%
PCM
70
Peregrine Capital Management
Minnesota
$5.28M -$2.82M -3,571 -35%
Franklin Resources
71
Franklin Resources
California
$5.25M +$34.7K +41 +0.7%
State Board of Administration of Florida Retirement System
72
State Board of Administration of Florida Retirement System
Florida
$5.17M +$368K +465 +8%
TCM
73
Tekla Capital Management
Massachusetts
$5.14M – – –
PP
74
PDT Partners
New York
$5.06M -$1.28M -1,621 -20%
Man Group
75
Man Group
United Kingdom
$5.04M +$5.04M +6,376 New
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