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Amtech Systems

Name Holding Trade Value Shares
Change
Change in
Stake
Dimensional Fund Advisors
1
Dimensional Fund Advisors
Texas
$12.6M +$59.5K +5,814 +0.5%
Pacific Ridge Capital Partners
2
Pacific Ridge Capital Partners
Oregon
$11M -$590K -57,567 -6%
Royce & Associates
3
Royce & Associates
New York
$9.33M +$2.16M +210,455 +35%
Vanguard Group
4
Vanguard Group
Pennsylvania
$5.98M – – –
Boothbay Fund Management
5
Boothbay Fund Management
New York
$5.22M – – –
Brandywine Global Investment Management
6
Brandywine Global Investment Management
Pennsylvania
$3.33M -$2.47M -240,835 -45%
ACM
7
AIGH Capital Management
Maryland
$3.12M +$2.8M +273,100 New
Heartland Advisors
8
Heartland Advisors
Wisconsin
$2.86M +$2.56M +250,000 New
Essex Investment Management
9
Essex Investment Management
Massachusetts
$2.55M +$254K +24,752 +12%
BlackRock
10
BlackRock
New York
$1.63M -$18.5K -1,805 -1%
Arrowstreet Capital
11
Arrowstreet Capital
Massachusetts
$1.58M – – –
Maven Securities
12
Maven Securities
Jersey
$1.48M +$1.33M +130,000 New
EAM Investors
13
EAM Investors
California
$1.34M +$1.2M +117,582 New
Acadian Asset Management
14
Acadian Asset Management
Massachusetts
$1.31M -$89.1K -8,695 -7%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$1.27M +$9.9K +967 +0.9%
Bridgeway Capital Management
16
Bridgeway Capital Management
Texas
$1.12M -$270K -26,400 -21%
Barings
17
Barings
North Carolina
$1.02M – – –
Ancora Advisors
18
Ancora Advisors
Ohio
$974K -$553K -53,968 -39%
Renaissance Technologies
19
Renaissance Technologies
New York
$949K -$1.43M -139,703 -63%
ClariVest Asset Management
20
ClariVest Asset Management
California
$949K -$5.12K -500 -0.6%
Oberweis Asset Management
21
Oberweis Asset Management
Illinois
$772K +$691K +67,500 New
Worth Venture Partners
22
Worth Venture Partners
New Jersey
$716K +$642K +62,646 New
White Pine Capital
23
White Pine Capital
Minnesota
$672K +$563 +55 +0.1%
Diametric Capital
24
Diametric Capital
Massachusetts
$567K +$30.3K +2,956 +6%
Two Sigma Advisers
25
Two Sigma Advisers
New York
$536K -$388K -37,900 -45%