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 %
BlackRock
1
BlackRock
New York
$3.41M -$52.2K -10,696 -2%
Vanguard Group
2
Vanguard Group
Pennsylvania
$2.53M -$35K -7,176 -1%
TCM
3
Tang Capital Management
California
$1.95M +$1.95M +400,000 New
Geode Capital Management
4
Geode Capital Management
Massachusetts
$1.2M +$61.5K +12,603 +5%
State Street
5
State Street
Massachusetts
$957K -$8.5K -1,742 -0.9%
CIEC
6
Crédit Industriel et Commercial
France
$732K +$732K +150,000 New
GLF
7
Groupe la Francaise
France
$679K +$679K +135,000 New
EPM
8
Equitec Proprietary Markets
Illinois
$540K +$540K +110,714 New
Fidelity Investments
9
Fidelity Investments
Massachusetts
$428K +$195K +40,039 +84%
QOP
10
Quinn Opportunity Partners
Virginia
$397K +$397K +81,429 New
Northern Trust
11
Northern Trust
Illinois
$392K -$6.34K -1,299 -2%
LPC
12
Lion Point Capital
New York
$385K – – –
Goldman Sachs
13
Goldman Sachs
New York
$317K +$14.3K +2,932 +5%
BMCM
14
Black Maple Capital Management
Wisconsin
$294K +$294K +60,197 New
Susquehanna International Group
15
Susquehanna International Group
Pennsylvania
$276K +$276K +56,588 New
Simplex Trading
16
Simplex Trading
Illinois
$259K +$259K +53,134 New
M
17
Murchinson
Ontario, Canada
$254K +$254K +52,000 New
UBS Group
18
UBS Group
Switzerland
$253K -$266K -54,498 -51%
Bank of New York Mellon
19
Bank of New York Mellon
New York
$160K +$18K +3,686 +13%
CL
20
CSS LLC
Illinois
$150K +$150K +30,772 New
Morgan Stanley
21
Morgan Stanley
New York
$140K -$42.7K -8,748 -23%
JPMorgan Chase & Co
22
JPMorgan Chase & Co
New York
$131K -$116K -23,856 -47%
Bank of America
23
Bank of America
North Carolina
$128K -$133K -27,324 -51%
SXL
24
Summit X LLC
Missouri
$122K -$61.5K -12,599 -33%
Charles Schwab
25
Charles Schwab
California
$113K -$21.6K -4,417 -16%
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