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Spero Therapeutics

Name Holding Trade Value Shares
Change
Change in
Stake
AFM
1
Anson Funds Management
Texas
$3.96M +$106K +89,436 +2%
P
2
Pfizer
New York
$2.43M +$2.81M +2,362,348 New
Vanguard Group
3
Vanguard Group
Pennsylvania
$1.82M
Renaissance Technologies
4
Renaissance Technologies
New York
$1.14M +$156K +130,938 +13%
Acadian Asset Management
5
Acadian Asset Management
Massachusetts
$1.07M -$38K -31,938 -3%
AI
6
Alphabet Inc
California
$917K
M
7
Murchinson
Ontario, Canada
$900K +$1.04M +873,910 New
ACM
8
ADAR1 Capital Management
Texas
$825K +$68.8K +57,818 +8%
BlackRock
9
BlackRock
New York
$500K +$633 +532 +0.1%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$496K -$70 -59 -0%
MCM
11
Monimus Capital Management
New Jersey
$320K +$370K +310,908 New
AVLSA
12
Atlas Venture Life Science Advisors
Massachusetts
$314K -$116K -97,630 -24%
Mackenzie Financial
13
Mackenzie Financial
Ontario, Canada
$193K +$185K +155,656 +488%
BCM
14
Bridgeway Capital Management
Texas
$190K
Citadel Advisors
15
Citadel Advisors
Florida
$178K +$109K +91,447 +112%
State Street
16
State Street
Massachusetts
$153K +$21.9K +18,400 +14%
DCM
17
DAFNA Capital Management
California
$129K
Northern Trust
18
Northern Trust
Illinois
$89K -$29.8K -25,050 -22%
JP Morgan Chase
19
JP Morgan Chase
New York
$63.5K +$73K +61,388 +26,012%
Squarepoint
20
Squarepoint
New York
$56.7K +$65.5K +55,051 New
Jane Street
21
Jane Street
New York
$54.5K +$62.9K +52,869 New
Prudential Financial
22
Prudential Financial
New Jersey
$50.7K +$58.5K +49,200 New
VF
23
Virtu Financial
New York
$47K +$54.8K +46,046 New
XT
24
XTX Topco
Cayman Islands
$31K +$35.8K +30,138 New
TSW
25
Three Seasons Wealth
Utah
$30.9K