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Amtech Systems
ASYS

Name Holding Trade Value Shares
Change 		Change in
Stake
HBWM
1
Hollow Brook Wealth Management
New York
$2.3M +$1.62M +361,737 New
Dimensional Fund Advisors
2
Dimensional Fund Advisors
Texas
$2.1M +$1.48M +330,065 New
Vanguard Group
3
Vanguard Group
Pennsylvania
$1.62M +$1.14M +254,622 New
RA
4
Royce & Associates
New York
$1.41M +$994K +221,900 New
EI
5
EAM Investors
California
$1.21M +$854K +190,551 New
DIS
6
Diversified Investment Strategies
Louisiana
$1.19M +$834K +186,265 New
WC
7
Walthausen & Co
New York
$954K +$672K +150,000 New
California Public Employees Retirement System
8
California Public Employees Retirement System
California
$858K +$604K +134,930 New
Renaissance Technologies
9
Renaissance Technologies
New York
$703K +$495K +110,596 New
AP
10
Alydar Partners
Massachusetts
$636K +$448K +100,000 New
BGIM
11
Brandywine Global Investment Management
Pennsylvania
$633K +$445K +99,410 New
AA
12
Ancora Advisors
Ohio
$616K +$434K +96,860 New
BCM
13
Bridgeway Capital Management
Texas
$616K +$434K +96,900 New
AAP
14
Ardsley Advisory Partners
Connecticut
$557K +$392K +87,500 New
Geode Capital Management
15
Geode Capital Management
Massachusetts
$213K +$150K +33,488 New
GCP
16
GSA Capital Partners
United Kingdom
$179K +$126K +28,200 New
BFA
17
BlackRock Fund Advisors
California
$162K +$114K +25,407 New
Invesco
18
Invesco
Georgia
$160K +$112K +25,082 New
Wellington Management Group
19
Wellington Management Group
Massachusetts
$160K +$113K +25,230 New
Northern Trust
20
Northern Trust
Illinois
$154K +$108K +24,205 New
Bank of New York Mellon
21
Bank of New York Mellon
New York
$97K +$68.5K +15,294 New
BIT
22
BlackRock Institutional Trust
California
$63K +$44.2K +9,872 New
U
23
UBS
Switzerland
$61K +$42.7K +9,543 New
NFA
24
Nationwide Fund Advisors
Ohio
$21K +$14.8K +3,315 New
Deutsche Bank
25
Deutsche Bank
Germany
$17K +$12.2K +2,719 New
1
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