BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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210 hedge funds and large institutions have $3.8B invested in bluebird bio in 2015 Q1 according to their latest regulatory filings, with 59 funds opening new positions, 71 increasing their positions, 68 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
210
Holders Change
+41
Holders Change %
+24.26%
% of All Funds
5.6%
Holding in Top 10
4
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-42.86%
% of All Funds
0.11%
New
59
Increased
71
Reduced
68
Closed
18
Calls
$97.3M
Puts
$70M
Net Calls
+$27.3M
Net Calls Change
-$1.56M

Top Buyers

1
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
$155M
2
Vanguard Group
Vanguard Group
Pennsylvania
$167M
3
O
OrbiMed
New York
$66.5M
4
Capital World Investors
Capital World Investors
California
$164M
5
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$232M

Top Sellers

1
TRV
Third Rock Ventures
Massachusetts
$0
2
RCM
RA Capital Management
Massachusetts
$24.2M
3
FCM
Frontier Capital Management
Massachusetts
$30.2M
4
DM
Deerfield Management
New York
$76.2M
5
PHS
PFM Health Sciences
California
$24.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
PMAM
176
Picton Mahoney Asset Management
Ontario, Canada
$193K +$193K +124 New
Barclays
177
Barclays
United Kingdom
$190K -$128K -82 -40%
Bank of Montreal
178
Bank of Montreal
Ontario, Canada
$152K -$213K -136 -58%
Royal Bank of Canada
179
Royal Bank of Canada
Ontario, Canada
$151K -$562K -361 -79%
MWAN
180
Mariner Wealth Advisors (NYC)
Kansas
$146K +$146K +94 New
ST
181
Spot Trading
Illinois
$144K +$31.3K +20 +28%
HCM
182
Highlander Capital Management
New Jersey
$121K – – –
PNC Financial Services Group
183
PNC Financial Services Group
Pennsylvania
$117K -$23.1K -15 -16%
TRCT
184
Tower Research Capital (TRC)
New York
$115K +$92.9K +59 +421%
CIM
185
CenturyLink Investment Management
Colorado
$108K +$108K +69 New
Teacher Retirement System of Texas
186
Teacher Retirement System of Texas
Texas
$98K +$26.4K +17 +37%
Walleye Trading
187
Walleye Trading
New York
$98K +$98K +62 New
PAM
188
Panagora Asset Management
Massachusetts
$94K +$94K +60 New
BlackRock
189
BlackRock
New York
$77K -$17.3K -11 -18%
Lazard Asset Management
190
Lazard Asset Management
New York
$74K -$507K -322 -87%
BPBT
191
Boston Private Bank & Trust
Massachusetts
$72K – – –
AA
192
Apriem Advisors
California
$60K +$60K +39 New
BNP Paribas Financial Markets
193
BNP Paribas Financial Markets
France
$56.3K +$56.3K +36 New
SEC
194
Seven Eight Capital
New York
$48K -$203K -131 -81%
BJ
195
BlackRock Japan
Japan
$36K +$17.2K +11 +92%
Northwestern Mutual Wealth Management
196
Northwestern Mutual Wealth Management
Wisconsin
$36K +$36K +23 New
LTFS
197
Ladenburg Thalmann Financial Services
Florida
$29K +$22.9K +15 +375%
NFG
198
Next Financial Group
Texas
$24K – – –
BFEC
199
Benjamin F. Edwards & Company
Missouri
$24K +$24K +15 New
Creative Planning
200
Creative Planning
Kansas
$22K +$14.1K +9 +180%
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