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BLUE

bluebird bio

Delisted

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

241 hedge funds and large institutions have $5.87B invested in bluebird bio in 2019 Q3 according to their latest regulatory filings, with 24 funds opening new positions, 81 increasing their positions, 78 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more funds holding in top 10

Funds holding in top 10: 12 (+1)

4% more repeat investments, than reductions

Existing positions increased: 81 | Existing positions reduced: 78

0.21% more ownership

Funds ownership: 8.72%8.93% (+0.21%)

12% less funds holding

Funds holding: 273241 (-32)

21% less call options, than puts

Call options by funds: $81.7M | Put options by funds: $103M

26% less capital invested

Capital invested by funds: $7.92B → $5.87B (-$2.05B)

56% less first-time investments, than exits

New positions opened: 24 | Existing positions closed: 54

Holders
241
Holders Change
-32
Holders Change %
-11.72%
% of All Funds
5.28%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.04%
New
24
Increased
81
Reduced
78
Closed
54
Calls
$81.7M
Puts
$103M
Net Calls
-$21.7M
Net Calls Change
+$9.31M
Name Holding Trade Value Shares
Change
Change in
Stake
EAM
76
Erste Asset Management
Austria
$3.3M
Legal & General Group
77
Legal & General Group
United Kingdom
$3.21M +$620K +406 +18%
TD Asset Management
78
TD Asset Management
Ontario, Canada
$3.2M -$447K -293 -10%
GC
79
Guggenheim Capital
Illinois
$2.95M -$99.3K -65 -3%
MGI
80
MayTech Global Investments
New York
$2.92M +$90.1K +59 +2%
GGHC
81
Gilder Gagnon Howe & Co
New York
$2.92M -$912K -597 -20%
Barclays
82
Barclays
United Kingdom
$2.87M +$2.95M +1,929 +397%
TRSOTSOK
83
Teachers Retirement System of the State of Kentucky
Kentucky
$2.71M +$605K +396 +21%
Royal Bank of Canada
84
Royal Bank of Canada
Ontario, Canada
$2.66M +$130K +85 +4%
State of Wisconsin Investment Board
85
State of Wisconsin Investment Board
Wisconsin
$2.51M -$7.64K -5 -0.2%
AllianceBernstein
86
AllianceBernstein
Tennessee
$2.39M -$2.06M -1,351 -40%
Jane Street
87
Jane Street
New York
$2.38M +$263K +172 +9%
HSBC Holdings
88
HSBC Holdings
United Kingdom
$2.37M +$3.04M +1,992 New
DCM
89
DAFNA Capital Management
California
$2.34M
BJL
90
Brighton Jones LLC
Washington
$2.26M
KBC Group
91
KBC Group
Belgium
$2.18M +$603K +395 +27%
Russell Investments Group
92
Russell Investments Group
United Kingdom
$2.11M +$670K +439 +33%
Marshall Wace
93
Marshall Wace
United Kingdom
$2.1M +$2.7M +1,766 New
Group One Trading
94
Group One Trading
Illinois
$2.07M -$1.27M -831 -32%
CIS
95
Capital International Sarl
California
$2.05M -$1.04M -680 -28%
VanEck Associates
96
VanEck Associates
New York
$1.95M -$97.7K -64 -4%
BNP Paribas Asset Management
97
BNP Paribas Asset Management
France
$1.9M -$6.76M -4,429 -74%
CM
98
Caption Management
Oklahoma
$1.78M +$1.58M +1,035 +224%
Ohio Public Employees Retirement System (OPERS)
99
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.76M +$6.11K +4 +0.3%
CSS
100
Cubist Systematic Strategies
Connecticut
$1.74M -$2.94M -1,922 -57%

BLUE Hedge Fund Activity: Q3 2019 in Review

241 of the 4,561 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q3 2019, worth a combined $5.87B — down 26% from $7.92B a quarter earlier.

Sellers outnumbered buyers: 54 funds closed out of BLUE and 24 opened new positions — a net loss of 30 holders — while 78 trimmed existing stakes and 81 added.

The largest buyer was Sands Capital Management, adding an estimated $126M. The largest seller was Baillie Gifford & Co, cutting an estimated $90.5M.

  • 241 institutional investors held bluebird bio (BLUE) as of Q3 2019, down from 273 in Q2 2019.
  • Funds reported $5.87B of bluebird bio stock for Q3 2019, down 26% quarter-over-quarter.
  • 24 funds opened new bluebird bio positions in Q3 2019 and 54 closed out, a net change of -30 holders.
  • The largest bluebird bio buyer in Q3 2019 was Sands Capital Management, an estimated $126M added.
  • The largest bluebird bio seller in Q3 2019 was Baillie Gifford & Co, an estimated $90.5M sold.

Based on aggregated 13F filings for Q3 2019.