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BLUE

bluebird bio

Delisted

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

192 hedge funds and large institutions have $3.12B invested in bluebird bio in 2015 Q3 according to their latest regulatory filings, with 21 funds opening new positions, 93 increasing their positions, 59 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed

58% more repeat investments, than reductions

Existing positions increased: 93 | Existing positions reduced: 59

7% less call options, than puts

Call options by funds: $59.5M | Put options by funds: $64M

18% less funds holding

Funds holding: 235192 (-43)

47% less capital invested

Capital invested by funds: $5.86B → $3.12B (-$2.74B)

50% less funds holding in top 10

Funds holding in top 10: 84 (-4)

67% less first-time investments, than exits

New positions opened: 21 | Existing positions closed: 63

Holders
192
Holders Change
-43
Holders Change %
-18.3%
% of All Funds
5.36%
Holding in Top 10
4
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-50%
% of All Funds
0.11%
New
21
Increased
93
Reduced
59
Closed
63
Calls
$59.5M
Puts
$64M
Net Calls
-$4.52M
Net Calls Change
-$9.39M
Name Holding Trade Value Shares
Change
Change in
Stake
Principal Financial Group
101
Principal Financial Group
Iowa
$1.76M -$748K -410 -21%
BAMS
102
Bellevue Asset Management (Switzerland)
Switzerland
$1.75M +$71.1K +39 +3%
WC
103
Woodstock Corp
Massachusetts
$1.68M
AllianceBernstein
104
AllianceBernstein
Tennessee
$1.67M +$72.9K +40 +3%
BJL
105
Brighton Jones LLC
Washington
$1.59M +$363K +199 +16%
BIM
106
BlackRock Investment Management
Delaware
$1.5M -$549K -301 -18%
Ohio Public Employees Retirement System (OPERS)
107
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.49M -$952K -522 -28%
EIM
108
Essex Investment Management
Massachusetts
$1.41M
VOYA Investment Management
109
VOYA Investment Management
Georgia
$1.39M +$159K +87 +7%
Allianz Asset Management
110
Allianz Asset Management
Germany
$1.39M -$1.4M -766 -38%
CCMH
111
Cornerstone Capital Management Holdings
New York
$1.23M +$2.02M +1,106 New
FLAM
112
First Light Asset Management
Minnesota
$1.17M +$284K +156 +17%
FCM
113
Frontier Capital Management
Massachusetts
$1.14M -$1.22M -671 -39%
PP
114
Paloma Partners
Connecticut
$1.13M -$4.5M -2,467 -71%
Jane Street
115
Jane Street
New York
$996K -$1.24M -680 -43%
Barclays
116
Barclays
United Kingdom
$922K +$771K +423 +102%
SG Americas Securities
117
SG Americas Securities
New York
$782K +$1.18M +649 +1,139%
FT
118
Fiduciary Trust
Massachusetts
$770K -$5.07M -2,779 -80%
PG
119
PEAK6 Group
Illinois
$727K +$1.2M +656 New
VKH
120
Virtu KCG Holdings
New York
$724K +$534K +293 +81%
PPA
121
Parametric Portfolio Associates
Washington
$708K -$649K -356 -36%
BA
122
BlackRock Advisors
Delaware
$704K -$6.18M -3,391 -84%
Federated Hermes
123
Federated Hermes
Pennsylvania
$684K
GPCM
124
Granite Point Capital Management
Massachusetts
$684K +$1.13M +618 New
SCM
125
Stevens Capital Management
Pennsylvania
$634K -$250K -137 -19%

BLUE Hedge Fund Activity: Q3 2015 in Review

192 of the 3,582 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q3 2015, worth a combined $3.12B — down 47% from $5.86B a quarter earlier.

Sellers outnumbered buyers: 63 funds closed out of BLUE and 21 opened new positions — a net loss of 42 holders — while 59 trimmed existing stakes and 93 added.

The largest buyer was Baillie Gifford & Co, adding an estimated $153M. The largest seller was Lord, Abbett & Co, cutting an estimated $57.1M.

  • 192 institutional investors held bluebird bio (BLUE) as of Q3 2015, down from 235 in Q2 2015.
  • Funds reported $3.12B of bluebird bio stock for Q3 2015, down 47% quarter-over-quarter.
  • 21 funds opened new bluebird bio positions in Q3 2015 and 63 closed out, a net change of -42 holders.
  • The largest bluebird bio buyer in Q3 2015 was Baillie Gifford & Co, an estimated $153M added.
  • The largest bluebird bio seller in Q3 2015 was Lord, Abbett & Co, an estimated $57.1M sold.

Based on aggregated 13F filings for Q3 2015.