BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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231 hedge funds and large institutions have $1.7B invested in bluebird bio in 2021 Q2 according to their latest regulatory filings, with 43 funds opening new positions, 81 increasing their positions, 60 reducing their positions, and 41 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
231
Holders Change
+2
Holders Change %
+0.87%
% of All Funds
4.03%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
43
Increased
81
Reduced
60
Closed
41
Calls
$26.1M
Puts
$32.6M
Net Calls
-$6.52M
Net Calls Change
+$13.5M

Top Buyers

1
BlackRock
BlackRock
New York
+$61.5M
2
First Trust Advisors
First Trust Advisors
Illinois
+$25.4M
3
Goldman Sachs
Goldman Sachs
New York
+$24.2M
4
Point72 Asset Management
Point72 Asset Management
Connecticut
+$18M
5
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
+$17.1M

Top Sellers

1
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
-$102M
2
CCM
Camber Capital Management
Massachusetts
-$30.2M
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$29.5M
4
CS
Candriam SCA
Luxembourg
-$17.6M
5
Two Sigma Investments
Two Sigma Investments
New York
-$6.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
Principal Financial Group
26
Principal Financial Group
Iowa
$13.7M +$4.94M +11,935 +56%
Millennium Management
27
Millennium Management
New York
$13.3M -$835K -2,015 -6%
Susquehanna International Group
28
Susquehanna International Group
Pennsylvania
$11.4M -$5.7M -13,766 -33%
Ameriprise
29
Ameriprise
Minnesota
$11M +$523K +1,262 +5%
Canada Pension Plan Investment Board
30
Canada Pension Plan Investment Board
Ontario, Canada
$10.3M +$8.33M +20,101 +418%
Bank of New York Mellon
31
Bank of New York Mellon
New York
$10.1M +$2.93M +7,064 +41%
Dimensional Fund Advisors
32
Dimensional Fund Advisors
Texas
$8.97M -$539K -1,302 -6%
BBA
33
Baker Bros. Advisors
New York
$7.26M – – –
QOP
34
Quinn Opportunity Partners
Virginia
$6.88M -$736K -1,776 -10%
Wells Fargo
35
Wells Fargo
California
$6.28M -$1.37M -3,305 -18%
PAMU
36
Pictet Asset Management (UK)
United Kingdom
$5.99M +$3.55M +8,566 +145%
Bank of America
37
Bank of America
North Carolina
$5.86M -$2.76M -6,666 -32%
PPA
38
Parametric Portfolio Associates
Washington
$5.59M +$2.67M +6,441 +91%
Citigroup
39
Citigroup
New York
$5.53M +$110K +266 +2%
Mirae Asset Global Investments
40
Mirae Asset Global Investments
South Korea
$5.52M +$82.9K +200 +2%
BAM
41
Bullseye Asset Management
Colorado
$5.05M +$2.88M +6,948 +133%
Group One Trading
42
Group One Trading
Illinois
$4.97M -$1M -2,417 -17%
CSS
43
Cubist Systematic Strategies
Connecticut
$4.89M -$191K -460 -4%
MP
44
Mangrove Partners
Connecticut
$4.84M -$768K -1,853 -14%
Swiss National Bank
45
Swiss National Bank
Switzerland
$4.73M -$115K -278 -2%
Swedbank
46
Swedbank
Sweden
$4.32M – – –
Russell Investments Group
47
Russell Investments Group
United Kingdom
$4.24M -$3.44M -8,301 -45%
GPCM
48
Granite Point Capital Management
Massachusetts
$4.16M -$3.52M -8,492 -46%
Tudor Investment Corp
49
Tudor Investment Corp
Connecticut
$3.8M -$2.08M -5,031 -35%
Jane Street
50
Jane Street
New York
$3.44M -$1.97M -4,764 -36%
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