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Spero Therapeutics

Name Holding Trade Value Shares
Change
Change in
Stake
GP
1
GSK plc
$21.5M
P
2
Pfizer
New York
$5.5M
Vanguard Capital Management
3
Vanguard Capital Management
Pennsylvania
$4.21M +$4.27M +1,799,880 New
Renaissance Technologies
4
Renaissance Technologies
New York
$2.78M -$214K -90,287 -7%
AI
5
Alphabet Inc
California
$2.08M
Two Sigma Investments
6
Two Sigma Investments
New York
$2.07M +$1.22M +513,061 +138%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$1.22M -$22K -9,273 -2%
BlackRock
8
BlackRock
New York
$1.01M -$983 -414 -0.1%
AFM
9
Anson Funds Management
Texas
$987K -$482K -203,106 -32%
Citadel Advisors
10
Citadel Advisors
Florida
$881K -$50.8K -21,406 -5%
Susquehanna International Group
11
Susquehanna International Group
Pennsylvania
$779K +$93.5K +39,415 +13%
GCP
12
GSA Capital Partners
United Kingdom
$651K +$236K +99,374 +56%
Vanguard Fiduciary Trust
13
Vanguard Fiduciary Trust
Pennsylvania
$618K +$627K +264,115 New
State Street
14
State Street
Massachusetts
$503K +$10.9K +4,600 +2%
ICM
15
Ionic Capital Management
New York
$458K
Squarepoint
16
Squarepoint
New York
$455K +$178K +74,867 +63%
Marshall Wace
17
Marshall Wace
United Kingdom
$368K +$373K +157,072 New
Northern Trust
18
Northern Trust
Illinois
$283K
BCM
19
Bridgeway Capital Management
Texas
$269K
Jane Street
20
Jane Street
New York
$249K -$123K -51,999 -33%
SC
21
Shay Capital
New York
$165K +$23.9K +10,065 +17%
Point72 Asset Management
22
Point72 Asset Management
Connecticut
$140K +$38.2K +16,089 +37%
Invesco
23
Invesco
Georgia
$106K +$49.1K +20,669 +84%
QC
24
Quadrature Capital
United Kingdom
$93.9K +$5.53K +2,329 +6%
CAAS
25
Capital Asset Advisory Services
Michigan
$92.4K