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Matrix Service
MTRX

Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$33.3M +$16M +1,396,765 +71%
FWSM
2
First Wilshire Securities Management
California
$19M -$410K -35,876 -2%
HP
3
Harvey Partners
New York
$13.9M +$514K +45,000 +3%
Vanguard Group
4
Vanguard Group
Pennsylvania
$13.6M +$1.69M +148,028 +12%
ACM
5
Azarias Capital Management
Pennsylvania
$12.6M +$3.22M +282,086 +28%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$11.6M +$36.7K +3,215 +0.3%
WCM
7
Westerly Capital Management
California
$10.7M +$2.29M +200,000 +23%
NIM
8
Needham Investment Management
New York
$10.2M +$3.66M +320,000 +45%
GJL
9
Gendell Jeffrey L
$9.3M +$755K +66,037 +8%
RA
10
Royce & Associates
New York
$7.5M -$117K -10,234 -1%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$5.89M +$3.85M +336,507 +131%
Bank of New York Mellon
12
Bank of New York Mellon
New York
$5.71M +$753K +65,902 +13%
PCM
13
Portolan Capital Management
Massachusetts
$3.76M -$3.93M -344,248 -48%
Franklin Resources
14
Franklin Resources
California
$3.41M -$1.94M -170,151 -33%
State Street
15
State Street
Massachusetts
$3.26M +$2.69M +234,985 +251%
SLG
16
Stanley-Laman Group
Pennsylvania
$3.24M +$149K +13,071 +4%
Millennium Management
17
Millennium Management
New York
$3.07M -$1.21M -106,045 -26%
D.E. Shaw & Co
18
D.E. Shaw & Co
New York
$2.83M +$123K +10,804 +4%
Marshall Wace
19
Marshall Wace
United Kingdom
$2.54M -$108K -9,449 -4%
Acadian Asset Management
20
Acadian Asset Management
Massachusetts
$2.5M -$1.95M -170,397 -40%
EIM
21
Essex Investment Management
Massachusetts
$2.36M +$364K +31,860 +15%
GIPM
22
G2 Investment Partners Management
New York
$2.1M +$627K +54,866 +35%
OAM
23
Oberweis Asset Management
Illinois
$2.1M +$144K +12,575 +6%
Renaissance Technologies
24
Renaissance Technologies
New York
$2.02M +$102K +8,900 +5%
Qube Research & Technologies (QRT)
25
Qube Research & Technologies (QRT)
United Kingdom
$2.02M -$1.5M -130,821 -39%
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