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Spero Therapeutics

Name Holding Trade Value Shares
Change
Change in
Stake
ACM
1
Aquilo Capital Management
California
$3.94M +$116K +39,727 +0.8%
BI
2
BVF Inc
California
$2.29M +$4.37M +1,504,000 +95%
AVAI
3
Atlas Venture Associates IX
Massachusetts
$1.02M
Vanguard Group
4
Vanguard Group
Pennsylvania
$924K -$372K -127,936 -9%
AVLSA
5
Atlas Venture Life Science Advisors
Massachusetts
$764K
Renaissance Technologies
6
Renaissance Technologies
New York
$696K +$2.41M +829,917 +761%
AI
7
Alphabet Inc
California
$659K
RSCM
8
Rock Springs Capital Management
Maryland
$571K -$640K -220,203 -22%
BlackRock
9
BlackRock
New York
$513K -$3.21M -1,103,328 -61%
D.E. Shaw & Co
10
D.E. Shaw & Co
New York
$481K +$1.83M +630,688 +3,382%
AG
11
Artal Group
Luxembourg
$371K
NHAS
12
Novo Holdings A/S
Denmark
$347K
Two Sigma Investments
13
Two Sigma Investments
New York
$324K +$1.04M +358,372 +454%
Millennium Management
14
Millennium Management
New York
$233K +$737K +253,382 +414%
Goldman Sachs
15
Goldman Sachs
New York
$225K +$470K +161,775 +114%
Geode Capital Management
16
Geode Capital Management
Massachusetts
$215K -$526K -180,931 -38%
OMC
17
Oasis Management Company
Cayman Islands
$213K +$838K +288,000 New
Dimensional Fund Advisors
18
Dimensional Fund Advisors
Texas
$212K -$355K -121,990 -30%
OMC
19
OUP Management Company
Pennsylvania
$185K
Morgan Stanley
20
Morgan Stanley
New York
$144K +$353K +121,435 +166%
Two Sigma Advisers
21
Two Sigma Advisers
New York
$131K +$465K +159,757 +974%
AQR Capital Management
22
AQR Capital Management
Connecticut
$115K +$452K +155,474 New
Assenagon Asset Management
23
Assenagon Asset Management
Luxembourg
$97K +$314K +107,897 +467%
Citadel Advisors
24
Citadel Advisors
Florida
$80K +$284K +97,554 +904%
E
25
Ergoteles
New York
$76K +$298K +102,408 New