BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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241 hedge funds and large institutions have $5.17B invested in bluebird bio in 2017 Q2 according to their latest regulatory filings, with 50 funds opening new positions, 95 increasing their positions, 66 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
241
Holders Change
+31
Holders Change %
+14.76%
% of All Funds
6.02%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.1%
New
50
Increased
95
Reduced
66
Closed
19
Calls
$109M
Puts
$49M
Net Calls
+$59.7M
Net Calls Change
+$34.8M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$63.1M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$61.7M
3
Capital Research Global Investors
Capital Research Global Investors
California
+$51.8M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$36.1M
5
CAM
Cormorant Asset Management
Massachusetts
+$28.9M

Top Sellers

1
Franklin Resources
Franklin Resources
California
-$50.4M
2
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$25.4M
3
Balyasny Asset Management
Balyasny Asset Management
Illinois
-$21.1M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$16.6M
5
State Street
State Street
Massachusetts
-$16.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$705M +$61.7M +45,335 +10%
Capital Research Global Investors
2
Capital Research Global Investors
California
$576M +$51.8M +38,066 +10%
Baillie Gifford & Co
3
Baillie Gifford & Co
United Kingdom
$567M +$20.6M +15,133 +4%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$392M +$63.1M +46,353 +19%
Vanguard Group
5
Vanguard Group
Pennsylvania
$374M +$36.1M +26,546 +11%
BlackRock
6
BlackRock
New York
$349M +$14.5M +10,664 +4%
T. Rowe Price Associates
7
T. Rowe Price Associates
Maryland
$307M -$16.6M -12,227 -5%
State Street
8
State Street
Massachusetts
$153M -$16.3M -11,962 -10%
Capital World Investors
9
Capital World Investors
California
$116M – – –
Victory Capital Management
10
Victory Capital Management
Texas
$103M +$4.92M +3,618 +5%
O
11
OppenheimerFunds
New York
$103M +$512K +376 +0.5%
Jennison Associates
12
Jennison Associates
New York
$83.9M -$6.99M -5,135 -8%
EAM
13
Eventide Asset Management
Massachusetts
$59.8M – – –
Northern Trust
14
Northern Trust
Illinois
$54.5M +$5.69M +4,180 +12%
Franklin Resources
15
Franklin Resources
California
$51.1M -$50.4M -37,033 -50%
Goldman Sachs
16
Goldman Sachs
New York
$51M +$13.8M +10,125 +37%
ACH
17
ArrowMark Colorado Holdings
Colorado
$45.2M +$2.22M +1,634 +5%
O
18
OrbiMed
New York
$42M +$12.2M +8,956 +41%
Balyasny Asset Management
19
Balyasny Asset Management
Illinois
$40.9M -$21.1M -15,532 -34%
Norges Bank
20
Norges Bank
Norway
$40.3M +$1.2M +885 +3%
Geode Capital Management
21
Geode Capital Management
Massachusetts
$39.2M +$1.91M +1,403 +5%
MWNA
22
Marshall Wace North America
New York
$36.6M +$15.8M +11,618 +76%
Ameriprise
23
Ameriprise
Minnesota
$35.7M +$3.59M +2,639 +11%
BBA
24
Baker Bros. Advisors
New York
$31.7M -$5.25M -3,860 -14%
Wells Fargo
25
Wells Fargo
California
$31.1M -$4.58M -3,369 -13%
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