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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
EMG
176
Ellington Management Group
Connecticut
$220K +$70.2K +46 +33%
William Blair & Company
177
William Blair & Company
Illinois
$214K -$12.2K -8 -4%
PAM
178
Panagora Asset Management
Massachusetts
$204K
MML Investors Services
179
MML Investors Services
Massachusetts
$201K -$191K -125 -43%
VEA
180
Virtus ETF Advisers
New York
$198K -$15.3K -10 -6%
SPIA
181
Steward Partners Investment Advisory
New York
$161K +$4.58K +3 +2%
HCM
182
Highlander Capital Management
New Jersey
$138K
Rockefeller Capital Management
183
Rockefeller Capital Management
New York
$128K
QT
184
Quantbot Technologies
New York
$127K +$142K +93 +620%
SG Americas Securities
185
SG Americas Securities
New York
$124K -$226K -148 -59%
MLICM
186
Metropolitan Life Insurance Company (MetLife)
New York
$122K -$214K -140 -58%
QI
187
QS Investors
New York
$111K
AG
188
Advisor Group
Arizona
$108K -$27.5K -18 -17%
Mitsubishi UFJ Asset Management
189
Mitsubishi UFJ Asset Management
Japan
$108K +$26K +17 +23%
ClearBridge Investments
190
ClearBridge Investments
New York
$104K
Nisa Investment Advisors
191
Nisa Investment Advisors
Missouri
$97K +$119K +78 +1,950%
FPS
192
Fieldpoint Private Securities
Connecticut
$88K -$10.7K -7 -9%
AIG
193
American International Group
New York
$82K
AF
194
Advisornet Financial
Minnesota
$73K
IA
195
IFP Advisors
Florida
$72K +$88.6K +58 New
NIM
196
NuWave Investment Management
New Jersey
$71K +$74.8K +49 +408%
BFEC
197
Benjamin F. Edwards & Company
Missouri
$64K -$67.2K -44 -45%
PNC Financial Services Group
198
PNC Financial Services Group
Pennsylvania
$52K -$24.4K -16 -27%
IUHSA
199
Itau Unibanco Holding S.A.
Brazil
$38K
QCG
200
Quadrant Capital Group
Ohio
$38K +$6.11K +4 +14%

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.