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Spero Therapeutics

Name Holding Trade Value Shares
Change
Change in
Stake
AVAI
1
Atlas Venture Associates IX
Massachusetts
$20.2M
AI
2
Alphabet Inc
California
$16.3M
BI
3
BVF Inc
California
$15.4M
Fidelity Investments
4
Fidelity Investments
Massachusetts
$11.7M
RCM
5
RA Capital Management
Massachusetts
$10.9M
RSCM
6
Rock Springs Capital Management
Maryland
$7.7M
VMI
7
VHCP Management II
New York
$6.95M -$148K -11,600 -2%
ACM
8
Aquilo Capital Management
California
$6.11M +$5.33M +416,691 New
AG
9
Artal Group
Luxembourg
$5.13M
BlackRock
10
BlackRock
New York
$5.02M +$1.15M +89,698 +36%
GIM
11
Granahan Investment Management
Massachusetts
$2.22M +$1.93M +151,148 New
AIC
12
AWM Investment Company
New York
$2.06M -$2.68M -209,526 -60%
JP Morgan Chase
13
JP Morgan Chase
New York
$2.03M -$1.51M -117,710 -46%
Vanguard Group
14
Vanguard Group
Pennsylvania
$1.83M +$177K +13,797 +12%
Northern Trust
15
Northern Trust
Illinois
$978K +$3.72K +291 +0.4%
State Street
16
State Street
Massachusetts
$898K +$378K +29,525 +93%
BCM
17
Bridgeway Capital Management
Texas
$802K
Geode Capital Management
18
Geode Capital Management
Massachusetts
$784K +$423K +33,094 +162%
Jacobs Levy Equity Management
19
Jacobs Levy Equity Management
New Jersey
$494K +$431K +33,678 New
Bank of New York Mellon
20
Bank of New York Mellon
New York
$363K +$134K +10,490 +74%
New York State Common Retirement Fund
21
New York State Common Retirement Fund
New York
$237K +$207K +16,150 New
Morgan Stanley
22
Morgan Stanley
New York
$214K +$45.6K +3,564 +32%
Deutsche Bank
23
Deutsche Bank
Germany
$184K +$60.7K +4,747 +61%
California State Teachers Retirement System (CalSTRS)
24
California State Teachers Retirement System (CalSTRS)
California
$150K +$8.89K +695 +7%
PNC Financial Services Group
25
PNC Financial Services Group
Pennsylvania
$146K +$128K +10,000 New