BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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187 hedge funds and large institutions have $1.71B invested in bluebird bio in 2016 Q1 according to their latest regulatory filings, with 35 funds opening new positions, 81 increasing their positions, 48 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
187
Holders Change
-6
Holders Change %
-3.11%
% of All Funds
4.99%
Holding in Top 10
4
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+33.33%
% of All Funds
0.11%
New
35
Increased
81
Reduced
48
Closed
38
Calls
$16.8M
Puts
$31M
Net Calls
-$14.2M
Net Calls Change
-$1.39M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$51.1M
2
GPP
Great Point Partners
Connecticut
+$16.7M
3
ACH
ArrowMark Colorado Holdings
Colorado
+$10.7M
4
State Street
State Street
Massachusetts
+$10.5M
5
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$10.4M

Top Sellers

1
PHS
PFM Health Sciences
California
-$42.9M
2
Capital World Investors
Capital World Investors
California
-$31.2M
3
Ameriprise
Ameriprise
Minnesota
-$16.7M
4
Capital Fund Management (CFM)
Capital Fund Management (CFM)
France
-$16.6M
5
State of Tennessee, Department of Treasury
State of Tennessee, Department of Treasury
Tennessee
-$12.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$235M +$1.6M +2,903 +0.7%
Baillie Gifford & Co
2
Baillie Gifford & Co
United Kingdom
$212M +$4.01M +7,282 +2%
Capital Research Global Investors
3
Capital Research Global Investors
California
$192M +$2.85M +5,171 +2%
Vanguard Group
4
Vanguard Group
Pennsylvania
$99.8M -$1.02M -1,861 -1%
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$91.8M +$6.6M +11,994 +8%
Capital World Investors
6
Capital World Investors
California
$57M -$31.2M -56,742 -35%
O
7
OppenheimerFunds
New York
$55.7M -$222K -404 -0.4%
Wellington Management Group
8
Wellington Management Group
Massachusetts
$51.1M +$51.1M +92,813 New
State Street
9
State Street
Massachusetts
$51.1M +$10.5M +19,088 +26%
Franklin Resources
10
Franklin Resources
California
$41M +$8.5M +15,432 +26%
O
11
OrbiMed
New York
$40.2M +$162K +294 +0.4%
Jennison Associates
12
Jennison Associates
New York
$37.3M +$533K +969 +1%
BIT
13
BlackRock Institutional Trust
California
$37M -$363K -659 -1%
BFA
14
BlackRock Fund Advisors
California
$32.7M -$42.9K -78 -0.1%
EAM
15
Eventide Asset Management
Massachusetts
$22.9M – – –
RIM
16
RS Investment Management
California
$22.4M +$506K +920 +2%
ACH
17
ArrowMark Colorado Holdings
Colorado
$21.3M +$10.7M +19,449 +101%
AG
18
Artal Group
Luxembourg
$21.3M +$5.95M +10,808 +39%
Wells Fargo
19
Wells Fargo
California
$19.1M -$1.04M -1,895 -5%
Goldman Sachs
20
Goldman Sachs
New York
$17.3M +$5.96M +10,833 +53%
GPP
21
Great Point Partners
Connecticut
$16.7M +$16.7M +30,350 New
Deutsche Bank
22
Deutsche Bank
Germany
$15.7M -$2.57M -4,667 -14%
BBA
23
Baker Bros. Advisors
New York
$15M +$9M +16,354 +150%
CCI
24
Columbus Circle Investors
$14.5M +$1.06M +1,927 +8%
TCIM
25
TIAA CREF Investment Management
New York
$14.4M +$8.26M +15,006 +134%
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