BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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274 hedge funds and large institutions have $5.27B invested in bluebird bio in 2019 Q4 according to their latest regulatory filings, with 69 funds opening new positions, 92 increasing their positions, 70 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
274
Holders Change
+33
Holders Change %
+13.69%
% of All Funds
5.41%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.06%
New
69
Increased
92
Reduced
70
Closed
34
Calls
$103M
Puts
$71.3M
Net Calls
+$31.2M
Net Calls Change
+$52.9M

Top Buyers

1
Sands Capital Management
Sands Capital Management
Virginia
+$87.4M
2
Citadel Advisors
Citadel Advisors
Florida
+$50.5M
3
TCM
TimesSquare Capital Management
New York
+$48.3M
4
GGHC
Gilder Gagnon Howe & Co
New York
+$42M
5
Goldman Sachs
Goldman Sachs
New York
+$31.5M

Top Sellers

1
Capital International Investors
Capital International Investors
California
-$346M
2
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$242M
3
Fidelity Investments
Fidelity Investments
Massachusetts
-$148M
4
Invesco
Invesco
Georgia
-$79.3M
5
CII
Capital International Inc
California
-$31.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
Wellington Management Group
1
Wellington Management Group
Massachusetts
$656M -$314K -276 -0%
Capital Research Global Investors
2
Capital Research Global Investors
California
$595M +$531K +467 +0.1%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$537M -$148M -130,514 -22%
Capital World Investors
4
Capital World Investors
California
$462M +$5.88M +5,177 +1%
Vanguard Group
5
Vanguard Group
Pennsylvania
$331M -$942K -829 -0.3%
Sands Capital Management
6
Sands Capital Management
Virginia
$279M +$87.4M +76,928 +46%
BlackRock
7
BlackRock
New York
$257M -$506K -445 -0.2%
Victory Capital Management
8
Victory Capital Management
Texas
$162M +$12.8M +11,234 +9%
T. Rowe Price Associates
9
T. Rowe Price Associates
Maryland
$146M +$30.2M +26,544 +26%
State Street
10
State Street
Massachusetts
$133M +$19M +16,752 +17%
Capital International Investors
11
Capital International Investors
California
$132M -$346M -304,191 -72%
CC
12
Casdin Capital
New York
$85.1M +$31.4M +27,599 +58%
Goldman Sachs
13
Goldman Sachs
New York
$77.3M +$31.5M +27,727 +69%
Citadel Advisors
14
Citadel Advisors
Florida
$69.6M +$50.5M +44,447 +265%
Baillie Gifford & Co
15
Baillie Gifford & Co
United Kingdom
$61M -$242M -213,088 -80%
HM
16
HealthCor Management
New York
$59.7M +$15.2M +13,382 +34%
Geode Capital Management
17
Geode Capital Management
Massachusetts
$55.9M +$1.63M +1,433 +3%
First Trust Advisors
18
First Trust Advisors
Illinois
$49.7M +$11.2M +9,869 +29%
TCM
19
TimesSquare Capital Management
New York
$48.3M +$48.3M +42,535 New
GGHC
20
Gilder Gagnon Howe & Co
New York
$44.8M +$42M +36,929 +1,506%
Nuveen Asset Management
21
Nuveen Asset Management
Illinois
$43.9M +$7.83M +6,888 +22%
American Century Companies
22
American Century Companies
Missouri
$43.9M +$3.3M +2,906 +8%
Norges Bank
23
Norges Bank
Norway
$41.6M – – –
Ameriprise
24
Ameriprise
Minnesota
$33.4M +$15.8M +13,871 +89%
UBS AM
25
UBS AM
Illinois
$31.4M -$4.59M -4,035 -13%
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