Matrix Service Co

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Matrix Service Co
TickerMTRX
CIK #0000866273
CUSIP576853105
SectorReal Estate & Construction - Construction - Special Trade Contractors
Address5100 East Skelly Drive Suite 700, Tulsa, OK 74135
Source [EDGAR]
CIK Filing 2011 - 2025
[0000866273] 10-K
[0000866273] 10-Q
[0000866273] 3
[0000866273] 4
[0000866273] 8-K
[0000866273] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Needham Investment Management LLC Matrix Service Co [2025-02-13] 0.0
Azarias Capital Management LP Matrix Service Co [2024-11-01] 0.0
Needham Investment Management LLC Matrix Service Co [2024-09-13] 4.99
BlackRock Inc Matrix Service Co [2024-07-08] 12.3
First Wilshire Securities Management Inc Matrix Service Co [2023-02-15] 8.0
Harvey Partners LLC Matrix Service Co [2023-02-14] 6.5
BlackRock Inc Matrix Service Co [2022-07-08] 4.4
Bank of New York Mellon Corp Matrix Service Co [2022-02-02] 8.69
BlackRock Inc Matrix Service Co [2021-01-25] 16.4
LSV Asset Management Matrix Service Co [2018-02-13] 5.9
Vanguard Group Inc Matrix Service Co [2017-02-10] 5.22
Dimensional Fund Advisors LP Matrix Service Co [2017-02-09] 6.96
LSV Asset Management Matrix Service Co [2017-02-06] 6.82
Victory Capital Management Inc Matrix Service Co [2016-02-12] 8.28
Dimensional Fund Advisors LP Matrix Service Co [2016-02-09] 5.43
Waddell & Reed Financial Inc Matrix Service Co [2014-02-07] 3.1
CI Global Investments Inc Matrix Service Co [2013-01-22] 5.75
Cortina Asset Management LLC Matrix Service Co [2012-01-26] 5.38
Form 3/4/5 Filer 2011 - 2025
Matrix Service Co
Miller James Harry
Bustamante Jose Luis M.
Conner Carlin G.
Chandler John D
Carnes Martha Z.
Hinrichs Liane K
Cavanah Kevin S
Sheets Justin D
Rodgers GLYN A
Payne Shawn P
Montalbano Douglas J
Durkin Kevin A
Austin Nancy E
Updyke Alan R
Hewitt John R
MOGG Jim W
Bennett Rick J
Rinehart Bradley J
Turner Jason W
Gibson John William
Montalbano Joseph F
Maxwell Tom E
Ryan James P
Hendrix I Edgar
Hall Michael J
Lackey Paul K
Frost Jack
Petrizzo Matthew J
Harker Joseph S
Burdine William C
Tippeconnic David James
Form 13F Holdings
Firm Period DFND Voting Shares
BlackRock, Inc. [2025-06-30] SOLE 3,228,614 3,276,295
Vanguard Group Inc [2025-06-30] SOLE 0 1,438,887
Needham Investment Management LLC [2025-06-30] DFND 1,420,000 1,420,000
Harvey Partners LLC [2025-06-30] SOLE 1,221,762 1,221,762
ACK Asset Management LLC [2025-06-30] SOLE 1,087,100 1,087,100
First Wilshire Securities Management Inc [2025-06-30] SOLE 851,365 901,008
Boston Partners [2025-06-30] DFND 844,966 844,966
Dimensional Fund Advisors LP [2025-06-30] SOLE 790,423 822,479
Westerly Capital Management LLC [2025-06-30] SOLE 820,000 820,000
Royce & Associates LP [2025-06-30] SOLE 707,307 707,307
American Century Companies Inc [2025-06-30] DFND 671,398 671,398
Azarias Capital Management LP [2025-06-30] SOLE 627,766 627,766
Geode Capital Management LLC [2025-06-30] DFND 620,275 620,275
Gendell Jeffrey L [2025-06-30] DFND 0 614,409
State Street Corp [2025-06-30] DFND 508,412 544,034
First Eagle Investment Management LLC [2025-06-30] SOLE 509,194 509,194
Bank of New York Mellon Corp [2025-06-30] DFND 461,324 467,572
Millennium Management LLC [2025-06-30] SOLE 430,207 430,207
Goldman Sachs Group Inc [2025-06-30] DFND 321,197 321,232
Jacobs Levy Equity Management Inc [2025-06-30] SOLE 269,311 309,910
AQR Capital Management LLC [2025-06-30] DFND 293,266 293,268
Connor Clark & Lunn Investment Management Ltd [2025-06-30] SOLE 286,186 286,186
Prudential Financial Inc [2025-06-30] DFND 246,227 248,417
de Lisle Partners LLP [2025-06-30] SOLE 237,935 237,935
Bank of America Corp /DE/ [2025-06-30] DFND 4,131 236,987
Northern Trust Corp [2025-06-30] DFND 236,582 236,582
Renaissance Technologies LLC [2025-06-30] SOLE 233,200 233,200
Centerbook Partners LP [2025-06-30] SOLE 224,433 224,433
Oberweis Asset Management Inc [2025-06-30] SOLE 221,075 221,075
Stanley-Laman Group Ltd [2025-06-30] SOLE 218,613 218,613
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