BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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199 hedge funds and large institutions have $2.88B invested in bluebird bio in 2016 Q4 according to their latest regulatory filings, with 31 funds opening new positions, 90 increasing their positions, 58 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
199
Holders Change
-1
Holders Change %
-0.5%
% of All Funds
4.98%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.08%
New
31
Increased
90
Reduced
58
Closed
30
Calls
$50.2M
Puts
$44M
Net Calls
+$6.24M
Net Calls Change
+$12.3M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
$188M
2
Capital Research Global Investors
Capital Research Global Investors
California
$291M
3
Fidelity Investments
Fidelity Investments
Massachusetts
$376M
4
Vanguard Group
Vanguard Group
Pennsylvania
$190M
5
BFA
BlackRock Fund Advisors
California
$112M

Top Sellers

1
O
OrbiMed
New York
$17.5M
2
Millennium Management
Millennium Management
New York
$0
3
PC
Passport Capital
California
$0
4
Franklin Resources
Franklin Resources
California
$57.1M
5
EA
Emerald Advisers
Pennsylvania
$10.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
US Bancorp
226
US Bancorp
Minnesota
– -$79K -90 Closed
QT
227
Quantbot Technologies
New York
– -$7K -9 Closed
EFSCE
228
Enterprise Financial Services Corp (EFSC)
Missouri
– -$3K -4 Closed
AssetMark Inc
229
AssetMark Inc
California
– -$1K -1 Closed
CF
230
CenterStar Fund
Illinois
– -$13K – –
6 7 8 9
10