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Spero Therapeutics

Name Holding Trade Value Shares
Change
Change in
Stake
AVAI
1
Atlas Venture Associates IX
Massachusetts
$19.6M
AI
2
Alphabet Inc
California
$15.9M
BI
3
BVF Inc
California
$14.9M +$240K +19,773 +2%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$11.4M
RCM
5
RA Capital Management
Massachusetts
$10.6M -$5.87M -484,000 -39%
RSCM
6
Rock Springs Capital Management
Maryland
$7.48M
VMI
7
VHCP Management II
New York
$6.92M
AG
8
Artal Group
Luxembourg
$4.99M
AIC
9
AWM Investment Company
New York
$4.99M
JP Morgan Chase
10
JP Morgan Chase
New York
$3.65M +$3.09M +255,052 +19,604%
BlackRock
11
BlackRock
New York
$3.6M +$139K +11,427 +5%
Vanguard Group
12
Vanguard Group
Pennsylvania
$1.58M +$795K +65,550 +144%
Northern Trust
13
Northern Trust
Illinois
$945K +$15K +1,234 +2%
BCM
14
Bridgeway Capital Management
Texas
$779K +$663K +54,700 New
State Street
15
State Street
Massachusetts
$451K +$384K +31,673 New
DCM
16
DAFNA Capital Management
California
$421K +$298K +24,544 +491%
California Public Employees Retirement System
17
California Public Employees Retirement System
California
$356K
Geode Capital Management
18
Geode Capital Management
Massachusetts
$290K +$247K +20,396 New
Bank of New York Mellon
19
Bank of New York Mellon
New York
$202K +$172K +14,199 New
Millennium Management
20
Millennium Management
New York
$163K +$138K +11,415 New
Morgan Stanley
21
Morgan Stanley
New York
$157K +$5.79K +477 +5%
California State Teachers Retirement System (CalSTRS)
22
California State Teachers Retirement System (CalSTRS)
California
$136K
Deutsche Bank
23
Deutsche Bank
Germany
$110K -$66.3K -5,466 -41%
AIG
24
American International Group
New York
$55K -$2.5K -206 -5%
SO
25
STRS Ohio
Ohio
$24K