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BLUE

bluebird bio

Delisted

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

232 hedge funds and large institutions have $1.71B invested in bluebird bio in 2021 Q2 according to their latest regulatory filings, with 44 funds opening new positions, 81 increasing their positions, 60 reducing their positions, and 41 closing their positions.

New
Increased
Maintained
Reduced
Closed

35% more repeat investments, than reductions

Existing positions increased: 81 | Existing positions reduced: 60

7% more capital invested

Capital invested by funds: $1.59B → $1.71B (+$118M)

1% more funds holding

Funds holding: 229232 (+3)

7% more first-time investments, than exits

New positions opened: 44 | Existing positions closed: 41

0.07% more ownership

Funds ownership: 6.03%6.11% (+0.07%)

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

20% less call options, than puts

Call options by funds: $26.1M | Put options by funds: $32.6M

Holders
232
Holders Change
+3
Holders Change %
+1.31%
% of All Funds
4.04%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.02%
New
44
Increased
81
Reduced
60
Closed
41
Calls
$26.1M
Puts
$32.6M
Net Calls
-$6.51M
Net Calls Change
+$13.5M
Name Holding Trade Value Shares
Change
Change in
Stake
WP
51
Woodline Partners
California
$3.29M +$2.09M +5,284 +198%
TC
52
Tarsadia Capital
New York
$3.2M
RhumbLine Advisers
53
RhumbLine Advisers
Massachusetts
$3.12M +$790K +1,994 +36%
DA
54
Duality Advisers
Florida
$3.02M +$1.04M +2,623 +56%
California State Teachers Retirement System (CalSTRS)
55
California State Teachers Retirement System (CalSTRS)
California
$2.98M -$715K -1,804 -20%
AA
56
ALPS Advisors
Colorado
$2.83M -$971K -2,450 -26%
PP
57
PDT Partners
New York
$2.8M +$857K +2,162 +47%
State of Wisconsin Investment Board
58
State of Wisconsin Investment Board
Wisconsin
$2.79M +$2.41M +6,084 +927%
Connor, Clark & Lunn Investment Management (CC&L)
59
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$2.75M +$2.02M +5,102 +330%
AllianceBernstein
60
AllianceBernstein
Tennessee
$2.69M +$1.9M +4,784 +278%
Citadel Advisors
61
Citadel Advisors
Florida
$2.64M +$1.24M +3,139 +97%
State of New Jersey Common Pension Fund D
62
State of New Jersey Common Pension Fund D
New Jersey
$2.59M +$899K +2,270 +57%
Invesco
63
Invesco
Georgia
$2.58M -$116K -294 -5%
Rafferty Asset Management
64
Rafferty Asset Management
New York
$2.58M -$3.87M -9,780 -61%
Marshall Wace
65
Marshall Wace
United Kingdom
$2.47M -$4.66M -11,769 -66%
BNP Paribas Financial Markets
66
BNP Paribas Financial Markets
France
$2.44M +$790K +1,994 +51%
Barclays
67
Barclays
United Kingdom
$2.42M +$807K +2,038 +54%
BC
68
Birchview Capital
Vermont
$2.37M -$46K -116 -2%
CG
69
Colony Group
Massachusetts
$2.3M +$2.2M +5,559 New
UBS AM
70
UBS AM
Illinois
$2.12M -$750K -1,893 -27%
Ohio Public Employees Retirement System (OPERS)
71
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.97M +$706K +1,783 +60%
New York State Common Retirement Fund
72
New York State Common Retirement Fund
New York
$1.86M -$376K -950 -17%
Deutsche Bank
73
Deutsche Bank
Germany
$1.85M +$761K +1,920 +75%
UR
74
USCA RIA
Texas
$1.77M -$56.3K -142 -3%
GF
75
Gabelli Funds
New York
$1.77M

BLUE Hedge Fund Activity: Q2 2021 in Review

232 of the 5,746 institutional investors tracked by Wall St. Rank reported a position in bluebird bio (BLUE) for Q2 2021, worth a combined $1.71B — up 7.4% from $1.59B a quarter earlier.

Buyers outnumbered sellers: 44 funds opened new BLUE positions and 41 closed out — a net gain of 3 holders — while 81 added to existing stakes and 60 trimmed.

The largest buyer was BlackRock, adding an estimated $58.8M. The largest seller was Royal Bank of Canada, cutting an estimated $97.2M.

  • 232 institutional investors held bluebird bio (BLUE) as of Q2 2021, up from 229 in Q1 2021.
  • Funds reported $1.71B of bluebird bio stock for Q2 2021, up 7.4% quarter-over-quarter.
  • 44 funds opened new bluebird bio positions in Q2 2021 and 41 closed out, a net change of +3 holders.
  • The largest bluebird bio buyer in Q2 2021 was BlackRock, an estimated $58.8M added.
  • The largest bluebird bio seller in Q2 2021 was Royal Bank of Canada, an estimated $97.2M sold.

Based on aggregated 13F filings for Q2 2021.