BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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275 hedge funds and large institutions have $3.41B invested in bluebird bio in 2020 Q3 according to their latest regulatory filings, with 40 funds opening new positions, 100 increasing their positions, 84 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
275
Holders Change
-3
Holders Change %
-1.08%
% of All Funds
5.56%
Holding in Top 10
1
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-75%
% of All Funds
0.02%
New
40
Increased
100
Reduced
84
Closed
42
Calls
$55.7M
Puts
$54.3M
Net Calls
+$1.4M
Net Calls Change
+$7.91M

Top Buyers

1
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
+$18.4M
2
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$14.2M
3
AC
Armistice Capital
New York
+$12.5M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$12.1M
5
GLA
Great Lakes Advisors
Illinois
+$11.9M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$42M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$25.7M
3
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$22.9M
4
FCM
Frontier Capital Management
Massachusetts
-$19.8M
5
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$16.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
Capital Research Global Investors
1
Capital Research Global Investors
California
$437M +$246K +352 +0.1%
Wellington Management Group
2
Wellington Management Group
Massachusetts
$389M -$1.5M -2,143 -0.4%
Vanguard Group
3
Vanguard Group
Pennsylvania
$341M +$12.1M +17,306 +4%
BlackRock
4
BlackRock
New York
$201M -$14.1M -20,123 -7%
Capital World Investors
5
Capital World Investors
California
$187M +$40.5K +58 +0%
Sands Capital Management
6
Sands Capital Management
Virginia
$172M +$3.52M +5,030 +2%
Royal Bank of Canada
7
Royal Bank of Canada
Ontario, Canada
$156M +$14.2M +20,325 +10%
State Street
8
State Street
Massachusetts
$92.9M +$4.31M +6,171 +5%
Victory Capital Management
9
Victory Capital Management
Texas
$81M -$1.66M -2,372 -2%
First Trust Advisors
10
First Trust Advisors
Illinois
$62.3M -$830K -1,188 -1%
Capital International Investors
11
Capital International Investors
California
$60.8M – – –
CCM
12
Camber Capital Management
Massachusetts
$59.3M -$9.44M -13,510 -14%
T. Rowe Price Associates
13
T. Rowe Price Associates
Maryland
$52M -$25.7M -36,842 -33%
CC
14
Casdin Capital
New York
$49.4M -$10.3M -14,668 -17%
TCM
15
TimesSquare Capital Management
New York
$43.6M -$7M -10,020 -14%
AC
16
Armistice Capital
New York
$43.2M +$12.5M +17,910 +41%
Geode Capital Management
17
Geode Capital Management
Massachusetts
$41.1M -$268K -384 -0.6%
Goldman Sachs
18
Goldman Sachs
New York
$38.7M -$16M -22,932 -29%
Baillie Gifford & Co
19
Baillie Gifford & Co
United Kingdom
$38.1M +$591K +845 +2%
Norges Bank
20
Norges Bank
Norway
$38M +$6M +8,590 +19%
CS
21
Credit Suisse
Switzerland
$35.7M -$343K -491 -1%
Nuveen Asset Management
22
Nuveen Asset Management
Illinois
$33.5M -$5.7M -8,150 -15%
PIM
23
Platinum Investment Management
Australia
$27.4M – – –
GGHC
24
Gilder Gagnon Howe & Co
New York
$23.8M -$9.22M -13,188 -28%
Jacobs Levy Equity Management
25
Jacobs Levy Equity Management
New Jersey
$23.4M +$9.16M +13,109 +64%
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