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Spero Therapeutics

Name Holding Trade Value Shares
Change
Change in
Stake
Atlas Venture Associates IX
1
Atlas Venture Associates IX
Massachusetts
$15.8M – – –
ACM
2
Aquilo Capital Management
California
$13.3M +$1.2M +100,000 +9%
Alphabet Inc
3
Alphabet Inc
California
$12.8M – – –
BVF Inc
4
BVF Inc
California
$10.8M +$5.77M +478,998 +104%
BlackRock
5
BlackRock
New York
$7.56M +$2.84M +235,691 +56%
AIC
6
AWM Investment Company
New York
$6.89M +$434K +36,019 +6%
AG
7
Artal Group
Luxembourg
$6.22M -$722K -60,000 -10%
Rock Springs Capital Management
8
Rock Springs Capital Management
Maryland
$6.04M – – –
OrbiMed
9
OrbiMed
New York
$5.84M – – –
VHCP Management II
10
VHCP Management II
New York
$5.46M – – –
Novo Holdings A/S
11
Novo Holdings A/S
Denmark
$5.36M +$5.61M +465,983 New
Vanguard Group
12
Vanguard Group
Pennsylvania
$5.03M +$226K +18,814 +4%
Fidelity Investments
13
Fidelity Investments
Massachusetts
$2.64M -$1.93M -160,300 -41%
Renaissance Technologies
14
Renaissance Technologies
New York
$2.47M +$1.22M +101,600 +90%
State Street
15
State Street
Massachusetts
$1.95M +$727K +60,396 +55%
JP Morgan Chase
16
JP Morgan Chase
New York
$1.83M +$166K +13,814 +9%
Granahan Investment Management
17
Granahan Investment Management
Massachusetts
$1.59M -$26.9K -2,231 -2%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$1.32M +$245K +20,376 +22%
Dimensional Fund Advisors
19
Dimensional Fund Advisors
Texas
$1.22M +$1.07M +88,534 +495%
Northern Trust
20
Northern Trust
Illinois
$1.08M +$65.2K +5,416 +6%
Fosun International
21
Fosun International
China
$962K -$202K -16,766 -16%
Oxford Asset Management
22
Oxford Asset Management
United Kingdom
$910K +$137K +11,377 +17%
DAFNA Capital Management
23
DAFNA Capital Management
California
$806K – – –
Bridgeway Capital Management
24
Bridgeway Capital Management
Texas
$628K – – –
Nuveen
25
Nuveen
North Carolina
$431K +$451K +37,476 New