BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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85 hedge funds and large institutions have $17.1M invested in bluebird bio in 2025 Q1 according to their latest regulatory filings, with 22 funds opening new positions, 15 increasing their positions, 24 reducing their positions, and 15 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
85
Holders Change
+5
Holders Change %
+6.25%
% of All Funds
1.15%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
22
Increased
15
Reduced
24
Closed
15
Calls
$23.8M
Puts
$7.01M
Net Calls
+$16.8M
Net Calls Change
-$19M

Top Buyers

1
TCM
Tang Capital Management
California
+$1.95M
2
CIEC
Crédit Industriel et Commercial
France
+$732K
3
GLF
Groupe la Francaise
France
+$679K
4
EPM
Equitec Proprietary Markets
Illinois
+$540K
5
QOP
Quinn Opportunity Partners
Virginia
+$397K

Top Sellers

1
APM
Avidity Partners Management
Texas
-$680K
2
PHS
PFM Health Sciences
California
-$632K
3
National Bank of Canada
National Bank of Canada
Quebec, Canada
-$409K
4
MCM
Masters Capital Management
Georgia
-$407K
5
Jane Street
Jane Street
New York
-$336K
Name Holding Trade Value Shares
Change 		Shares
Change %
AQR Capital Management
26
AQR Capital Management
Connecticut
$108K -$23.1K -4,725 -18%
Group One Trading
27
Group One Trading
Illinois
$106K +$106K +21,693 New
RP
28
Regeneron Pharmaceuticals
New York
$102K – – –
Deutsche Bank
29
Deutsche Bank
Germany
$97.9K +$24 +5 +0%
AllianceBernstein
30
AllianceBernstein
Tennessee
$71.8K – – –
Two Sigma Investments
31
Two Sigma Investments
New York
$67.1K -$27.5K -5,637 -29%
RhumbLine Advisers
32
RhumbLine Advisers
Massachusetts
$61.1K -$8.08K -1,654 -12%
Barclays
33
Barclays
United Kingdom
$48K -$23.9K -4,890 -33%
Citigroup
34
Citigroup
New York
$36.6K -$4.37K -896 -11%
Wells Fargo
35
Wells Fargo
California
$31.7K +$1.16K +238 +4%
Mirae Asset Global ETFs Holdings
36
Mirae Asset Global ETFs Holdings
Hong Kong
$28.6K +$1.14K +234 +4%
Osaic Holdings
37
Osaic Holdings
Arizona
$26.7K +$26.6K +5,460 +34,125%
CF
38
Corebridge Financial
Texas
$23.3K -$351 -72 -1%
PMAM
39
Picton Mahoney Asset Management
Ontario, Canada
$16K +$16K +3,220 New
PFSRSONJ
40
Police & Firemen's Retirement System of New Jersey
New Jersey
$13.3K – – –
TRCT
41
Tower Research Capital (TRC)
New York
$11.8K -$3.2K -656 -21%
New York State Common Retirement Fund
42
New York State Common Retirement Fund
New York
$8K – – –
Carson Wealth (CWM LLC)
43
Carson Wealth (CWM LLC)
Nebraska
$8K +$5.91K +1,273 +284%
Royal Bank of Canada
44
Royal Bank of Canada
Ontario, Canada
$5K -$2.19K -502 -30%
FDCDDQ
45
Federation des caisses Desjardins du Quebec
Quebec, Canada
$4.88K -$342 -70 -7%
AIP
46
Ameritas Investment Partners
Nebraska
$4.66K – – –
Legal & General Group
47
Legal & General Group
United Kingdom
$4.58K – – –
California State Teachers Retirement System (CalSTRS)
48
California State Teachers Retirement System (CalSTRS)
California
$3.39K – – –
BNP Paribas Financial Markets
49
BNP Paribas Financial Markets
France
$3.31K -$18.9K -3,866 -85%
PNC Financial Services Group
50
PNC Financial Services Group
Pennsylvania
$2.61K +$2.49K +511 +2,129%
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