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BLUE

bluebird bio
BLUE

Delisted

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

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104 hedge funds and large institutions have $742M invested in bluebird bio in 2014 Q2 according to their latest regulatory filings, with 41 funds opening new positions, 34 increasing their positions, 21 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

143% more call options, than puts

Call options by funds: $6.52M | Put options by funds: $2.68M

116% more first-time investments, than exits

New positions opened: 41 | Existing positions closed: 19

80% more capital invested

Capital invested by funds: $411M → $742M (+$331M)

62% more repeat investments, than reductions

Existing positions increased: 34 | Existing positions reduced: 21

25% more funds holding

Funds holding: 83 → 104 (+21)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

Holders
104
Holders Change
+21
Holders Change %
+25.3%
% of All Funds
2.99%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
41
Increased
34
Reduced
21
Closed
19
Calls
$6.52M
Puts
$2.68M
Net Calls
+$3.84M
Net Calls Change
+$3.91M

Top Buyers

Rank Fund Capital Flow
1
DM
Deerfield Management
New York
+$16.4M
2
Goldman Sachs
Goldman Sachs
New York
+$7.85M
3
BFA
BlackRock Fund Advisors
California
+$6.84M
4
PC
PointState Capital
New York
+$6.81M
5
Vanguard Group
Vanguard Group
Pennsylvania
+$4.43M

Top Sellers

Rank Fund Capital Flow
1
WRF
Waddell & Reed Financial
Kansas
-$25M
2
PHS
PFM Health Sciences
California
-$6.62M
3
O
OrbiMed
New York
-$6.57M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$4.06M
5
Millennium Management
Millennium Management
New York
-$3.73M
Name Holding Trade Value Shares
Change 		Change in
Stake
Deutsche Bank
26
Deutsche Bank
Germany
$4.07M -$109K -339 -4%
TCIM
27
TIAA CREF Investment Management
New York
$4.03M +$1.79M +5,596 +226%
Northern Trust
28
Northern Trust
Illinois
$3.59M +$74.1K +231 +3%
CI
29
Cowen Inc
New York
$3.56M -$292K -912 -11%
DCM
30
Driehaus Capital Management
Illinois
$3.21M -$1.49M -4,641 -42%
EAM
31
EverPoint Asset Management
Connecticut
$3.09M +$1.98M +6,176 New
EAM
32
Eventide Asset Management
Massachusetts
$2.97M +$295K +919 +18%
Bank of New York Mellon
33
Bank of New York Mellon
New York
$2.96M +$1.14M +3,555 +150%
WMSA
34
Weiss Multi-Strategy Advisers
New York
$2.7M +$1.73M +5,404 New
BA
35
BlackRock Advisors
Delaware
$2.34M -$2.78M -8,675 -65%
BIM
36
BlackRock Investment Management
Delaware
$2.24M +$945K +2,948 +192%
TRSOTSOK
37
Teachers Retirement System of the State of Kentucky
Kentucky
$2.11M – – –
Geode Capital Management
38
Geode Capital Management
Massachusetts
$2.1M +$214K +668 +19%
TCM
39
Tekla Capital Management
Massachusetts
$2.1M -$481K -1,500 -26%
MSE
40
MUFG Securities EMEA
United Kingdom
$2.02M +$1.3M +4,053 New
Principal Financial Group
41
Principal Financial Group
Iowa
$2.02M +$22.1K +69 +2%
CS
42
Credit Suisse
Switzerland
$2.01M -$137K -428 -10%
CCM
43
Cupps Capital Management
Illinois
$1.99M +$1.27M +3,975 New
Bank of America
44
Bank of America
North Carolina
$1.94M -$547K -1,706 -31%
GACM
45
Green Arrow Capital Management
New York
$1.93M -$247K -772 -17%
FT
46
Fiduciary Trust
Massachusetts
$1.92M -$18.6K -58 -1%
California State Teachers Retirement System (CalSTRS)
47
California State Teachers Retirement System (CalSTRS)
California
$1.34M +$555K +1,730 +181%
Charles Schwab
48
Charles Schwab
California
$1.28M +$448K +1,398 +120%
Invesco
49
Invesco
Georgia
$1.26M +$811K +2,530 New
AllianceBernstein
50
AllianceBernstein
Tennessee
$1.12M +$716K +2,235 +55,875%
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BLUE Hedge Fund Activity: Q2 2014 in Review

104 of the 3,479 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q2 2014, worth a combined $742M — up 80% from $411M a quarter earlier.

Buyers outnumbered sellers: 41 funds opened new BLUE positions and 19 closed out — a net gain of 22 holders — while 34 added to existing stakes and 21 trimmed.

The largest buyer was Deerfield Management, adding an estimated $16.4M. The largest seller was Waddell & Reed Financial, exiting entirely with an estimated $25M sold.

  • 104 institutional investors held bluebird bio (BLUE) as of Q2 2014, up from 83 in Q1 2014.
  • Funds reported $742M of bluebird bio stock for Q2 2014, up 80% quarter-over-quarter.
  • 41 funds opened new bluebird bio positions in Q2 2014 and 19 closed out, a net change of +22 holders.
  • The largest bluebird bio buyer in Q2 2014 was Deerfield Management, an estimated $16.4M added.
  • The largest bluebird bio seller in Q2 2014 was Waddell & Reed Financial, an estimated $25M sold.

Based on aggregated 13F filings for Q2 2014.