BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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169 hedge funds and large institutions have $2.74B invested in bluebird bio in 2014 Q4 according to their latest regulatory filings, with 59 funds opening new positions, 53 increasing their positions, 42 reducing their positions, and 11 closing their positions.

Holders
169
Holders Change
+46
Holders Change %
+37.4%
% of All Funds
4.51%
Holding in Top 10
7
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+133.33%
% of All Funds
0.19%
New
59
Increased
53
Reduced
42
Closed
11
Calls
$43.4M
Puts
$14.5M
Net Calls
+$28.8M
Net Calls Change
+$16.1M

Top Buyers

1
Capital World Investors
1
Capital World Investors
California
$75M
2
O
2
OppenheimerFunds
New York
$69M
3
FCM
3
Frontier Capital Management
Massachusetts
$43.8M
4
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$139M
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$433M

Top Sellers

1
Point72 Asset Management
1
Point72 Asset Management
Connecticut
$4.08M
2
DM
2
Deerfield Management
New York
$78M
3
RCM
3
RA Capital Management
Massachusetts
$46.4M
4
QF
4
QVT Financial
New York
$14.9M
5
State Street
5
State Street
Massachusetts
$49.9M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$433M 4,720,878 +435,609 +10%
Capital Research Global Investors
2
Capital Research Global Investors
California
$356M 3,876,111 +373,196 +11%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$139M 1,516,944 +449,673 +42%
TRV
4
Third Rock Ventures
Massachusetts
$111M 1,215,054 – –
BFA
5
BlackRock Fund Advisors
California
$87M 948,851 +82,235 +9%
DM
6
Deerfield Management
New York
$78M 850,932 -407,755 -32%
Capital World Investors
7
Capital World Investors
California
$75M 818,000 +818,000 New
Vanguard Group
8
Vanguard Group
Pennsylvania
$70.5M 768,517 +140,844 +22%
O
9
OppenheimerFunds
New York
$69M 752,560 +752,560 New
Jennison Associates
10
Jennison Associates
New York
$54.3M 592,002 -27,326 -4%
Millennium Management
11
Millennium Management
New York
$50.1M 546,245 +413,885 +313%
State Street
12
State Street
Massachusetts
$49.9M 544,555 -198,035 -27%
BIT
13
BlackRock Institutional Trust
California
$49.4M 539,101 -46,356 -8%
UBS AM
14
UBS AM
Illinois
$48.3M 526,069 +144,228 +38%
RCM
15
RA Capital Management
Massachusetts
$46.4M 506,122 -222,690 -31%
FCM
16
Frontier Capital Management
Massachusetts
$43.8M 477,443 +477,443 New
Lord, Abbett & Co
17
Lord, Abbett & Co
New Jersey
$41.2M 449,236 +238,963 +114%
Franklin Resources
18
Franklin Resources
California
$39.3M 428,832 -27,500 -6%
TCP
19
Tourbillon Capital Partners
New York
$38.6M 420,500 +420,500 New
EAM
20
Eventide Asset Management
Massachusetts
$35.8M 390,000 -5,700 -1%
PHS
21
PFM Health Sciences
California
$34.4M 375,245 +331,343 +755%
Wells Fargo
22
Wells Fargo
California
$34.2M 373,118 +369,069 +9,115%
Goldman Sachs
23
Goldman Sachs
New York
$33.8M 368,452 +113,875 +45%
DFO
24
Duquesne Family Office
New York
$32.6M 355,400 +355,400 New
RIM
25
RS Investment Management
California
$31.1M 338,829 +6,280 +2%
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