BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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273 hedge funds and large institutions have $7.92B invested in bluebird bio in 2019 Q2 according to their latest regulatory filings, with 31 funds opening new positions, 106 increasing their positions, 81 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
273
Holders Change
-15
Holders Change %
-5.21%
% of All Funds
5.94%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
31
Increased
106
Reduced
81
Closed
42
Calls
$100M
Puts
$131M
Net Calls
-$31M
Net Calls Change
-$84.9M

Top Buyers

1
Sands Capital Management
Sands Capital Management
Virginia
+$141M
2
Invesco
Invesco
Georgia
+$121M
3
Nuveen Asset Management
Nuveen Asset Management
Illinois
+$53.1M
4
Capital World Investors
Capital World Investors
California
+$48.9M
5
EVM
Eaton Vance Management
Massachusetts
+$26.9M

Top Sellers

1
Vanguard Group
Vanguard Group
Pennsylvania
-$138M
2
MWNA
Marshall Wace North America
New York
-$74.9M
3
Bank of America
Bank of America
North Carolina
-$35.4M
4
EAM
Eventide Asset Management
Massachusetts
-$32.9M
5
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$32.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
Zurich Cantonal Bank
176
Zurich Cantonal Bank
Switzerland
$459K -$26.3K -16 -5%
QF
177
QVT Financial
New York
$444K – – –
EGM
178
Engineers Gate Manager
New York
$424K +$424K +257 New
SG Americas Securities
179
SG Americas Securities
New York
$415K +$245K +149 +145%
MLICM
180
Metropolitan Life Insurance Company (MetLife)
New York
$401K -$8.25K -5 -2%
SCM
181
Shelton Capital Management
Colorado
$369K +$369K +224 New
KAM
182
Kazazian Asset Management
Florida
$357K -$46.1K -28 -11%
PCA
183
Private Capital Advisors
Connecticut
$356K +$356K +216 New
Mirae Asset Global Investments
184
Mirae Asset Global Investments
South Korea
$328K +$165K +100 +101%
WA
185
Winfield Associates
Ohio
$327K -$13.2K -8 -4%
William Blair & Company
186
William Blair & Company
Illinois
$310K -$14.8K -9 -5%
Mariner
187
Mariner
Kansas
$298K -$6.59K -4 -2%
Prudential Financial
188
Prudential Financial
New Jersey
$295K -$18K -11 -6%
WS
189
Wedbush Securities
California
$290K -$98.9K -60 -25%
VEA
190
Virtus ETF Advisers
New York
$289K -$44.3K -27 -13%
PAM
191
Panagora Asset Management
Massachusetts
$283K – – –
Comerica Bank
192
Comerica Bank
Texas
$268K -$3.62K -2 -1%
OFS
193
OneAscent Financial Services
Alabama
$265K +$265K +161 New
VF
194
Virtu Financial
New York
$259K -$21.4K -13 -8%
LWAC
195
Laurel Wealth Advisors (California)
California
$256K -$3.3K -2 -1%
B
196
Bailard
California
$254K – – –
BM
197
Brandywine Managers
Delaware
$254K – – –
SLG
198
Stanley-Laman Group
Pennsylvania
$243K +$243K +148 New
BB
199
Bell Bank
North Dakota
$229K – – –
EMG
200
Ellington Management Group
Connecticut
$229K +$229K +139 New
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