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Spero Therapeutics

Name Holding Trade Value Shares
Change
Change in
Stake
AVAI
1
Atlas Venture Associates IX
Massachusetts
$17.6M
AI
2
Alphabet Inc
California
$14.3M
ACM
3
Aquilo Capital Management
California
$13.5M +$238K +22,409 +2%
AG
4
Artal Group
Luxembourg
$7.69M
AIC
5
AWM Investment Company
New York
$7.2M +$406K +38,271 +7%
RSCM
6
Rock Springs Capital Management
Maryland
$6.72M
O
7
OrbiMed
New York
$6.5M +$5.38M +507,471 New
VMI
8
VHCP Management II
New York
$6.07M
BI
9
BVF Inc
California
$5.9M -$4.06M -382,440 -45%
BlackRock
10
BlackRock
New York
$5.39M +$291K +27,457 +7%
Vanguard Group
11
Vanguard Group
Pennsylvania
$5.36M +$2.71M +255,826 +157%
Fidelity Investments
12
Fidelity Investments
Massachusetts
$4.99M -$1.05M -99,300 -20%
JP Morgan Chase
13
JP Morgan Chase
New York
$1.93M -$378K -35,601 -19%
GIM
14
Granahan Investment Management
Massachusetts
$1.8M -$146K -13,780 -9%
Renaissance Technologies
15
Renaissance Technologies
New York
$1.45M +$747K +70,400 +164%
State Street
16
State Street
Massachusetts
$1.4M -$456K -42,958 -28%
FI
17
Fosun International
China
$1.25M -$626K -59,000 -36%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$1.21M +$26.5K +2,499 +3%
Northern Trust
19
Northern Trust
Illinois
$1.13M -$90.2K -8,499 -9%
Bank of America
20
Bank of America
North Carolina
$1.05M -$6.05K -570 -0.7%
DCM
21
DAFNA Capital Management
California
$897K
OAM
22
Oxford Asset Management
United Kingdom
$867K +$205K +19,334 +40%
BCM
23
Bridgeway Capital Management
Texas
$699K +$276K +26,000 +91%
UOC
24
UBS O'Connor
Illinois
$658K -$1.24M -116,618 -69%
Jacobs Levy Equity Management
25
Jacobs Levy Equity Management
New Jersey
$490K +$242K +22,782 +148%