We are live on ! Find out more
BLUE

bluebird bio

Delisted

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

169 hedge funds and large institutions have $2.74B invested in bluebird bio in 2014 Q4 according to their latest regulatory filings, with 59 funds opening new positions, 53 increasing their positions, 42 reducing their positions, and 11 closing their positions.

New
Increased
Maintained
Reduced
Closed

436% more first-time investments, than exits

New positions opened: 59 | Existing positions closed: 11

224% more capital invested

Capital invested by funds: $845M → $2.74B (+$1.9B)

198% more call options, than puts

Call options by funds: $43.4M | Put options by funds: $14.5M

133% more funds holding in top 10

Funds holding in top 10: 37 (+4)

37% more funds holding

Funds holding: 123169 (+46)

26% more repeat investments, than reductions

Existing positions increased: 53 | Existing positions reduced: 42

Holders
169
Holders Change
+46
Holders Change %
+37.4%
% of All Funds
4.51%
Holding in Top 10
7
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+133.33%
% of All Funds
0.19%
New
59
Increased
53
Reduced
42
Closed
11
Calls
$43.4M
Puts
$14.5M
Net Calls
+$28.8M
Net Calls Change
+$16.1M
Name Holding Trade Value Shares
Change
Change in
Stake
AQR Capital Management
51
AQR Capital Management
Connecticut
$9.68M +$4.15M +6,213 +321%
RG
52
Redmile Group
California
$9.38M +$5.27M +7,892 New
Wellington Management Group
53
Wellington Management Group
Massachusetts
$8.95M +$5.04M +7,536 New
CI
54
Cowen Inc
New York
$8.92M +$249K +372 +5%
CS
55
Credit Suisse
Switzerland
$8.32M +$433K +648 +10%
Artisan Partners
56
Artisan Partners
Wisconsin
$7.25M +$4.08M +6,100 New
UBS Group
57
UBS Group
Switzerland
$7.17M +$4.03M +6,032 New
PC
58
PointState Capital
New York
$6.88M -$2.84M -4,246 -42%
Axa
59
Axa
France
$6.32M +$3.56M +5,322 New
DCM
60
Driehaus Capital Management
Illinois
$6.24M -$470K -703 -12%
BA
61
BlackRock Advisors
Delaware
$6.14M +$398K +596 +13%
BIM
62
BlackRock Investment Management
Delaware
$6.04M -$24.1K -36 -0.7%
NFA
63
Nationwide Fund Advisors
Ohio
$5.94M +$2.48M +3,707 +287%
CCM
64
Cadence Capital Management
Massachusetts
$5.65M +$3.18M +4,755 New
EI
65
EAM Investors
California
$5.65M +$1.66M +2,485 +110%
HRCM
66
Hood River Capital Management
Florida
$5.64M +$3.17M +4,748 New
GC
67
Guggenheim Capital
Illinois
$5.54M +$3.11M +4,660 New
Allianz Asset Management
68
Allianz Asset Management
Germany
$5.45M +$3.07M +4,589 New
Charles Schwab
69
Charles Schwab
California
$5.2M +$446K +668 +18%
Connor, Clark & Lunn Investment Management (CC&L)
70
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$5.18M +$2.61M +3,899 +842%
TCM
71
Tekla Capital Management
Massachusetts
$5M -$6.11M -9,141 -68%
CS
72
Candriam SCA
Luxembourg
$4.68M +$2.63M +3,937 New
Principal Financial Group
73
Principal Financial Group
Iowa
$4.57M -$154K -231 -6%
TRSOTSOK
74
Teachers Retirement System of the State of Kentucky
Kentucky
$4.46M
FT
75
Fiduciary Trust
Massachusetts
$4.4M -$51.5K -77 -2%

BLUE Hedge Fund Activity: Q4 2014 in Review

169 of the 3,750 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q4 2014, worth a combined $2.74B — up 224% from $845M a quarter earlier.

Buyers outnumbered sellers: 59 funds opened new BLUE positions and 11 closed out — a net gain of 48 holders — while 53 added to existing stakes and 42 trimmed.

The largest buyer was Capital World Investors, opening a new position worth an estimated $42.2M. The largest seller was Point72 Asset Management, cutting an estimated $28.4M.

  • 169 institutional investors held bluebird bio (BLUE) as of Q4 2014, up from 123 in Q3 2014.
  • Funds reported $2.74B of bluebird bio stock for Q4 2014, up 224% quarter-over-quarter.
  • 59 funds opened new bluebird bio positions in Q4 2014 and 11 closed out, a net change of +48 holders.
  • The largest bluebird bio buyer in Q4 2014 was Capital World Investors, an estimated $42.2M added.
  • The largest bluebird bio seller in Q4 2014 was Point72 Asset Management, an estimated $28.4M sold.

Based on aggregated 13F filings for Q4 2014.