Matrix Service Co
MTRX- Exchange
- Nasdaq
- Industry
- Construction - Special Trade Contractors
- SEC CIK
- 0000866273
No open-market purchases or sales by Matrix Service Co insiders were filed in the last 90 days; 150 institutions reported holding it in 13F filings for Q2 2026, worth $341.1M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Matrix Service Co as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 144
- +2 vs. Q4 2025
- Shares held
- 24.3M
- +1.27M (+5.5%) vs. Q4 2025
- Total value
- $278.6M
- +$9.31M (+3.5%) vs. Q4 2025
- New holders
- 21
- 63 more added
- Sold out
- 19
- 46 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MTRX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 150 | $341.1M |
| Q1 2026 | 144 | $278.6M |
| Q4 2025 | 144 | $287.2M |
| Q3 2025 | 143 | $312.2M |
| Q2 2025 | 125 | $326.3M |
| Q1 2025 | 122 | $293.4M |
| Q4 2024 | 123 | $272.3M |
| Q3 2024 | 117 | $268.3M |
| Q2 2024 | 112 | $224.9M |
| Q1 2024 | 110 | $292.2M |
| Q4 2023 | 103 | $209.0M |
| Q3 2023 | 87 | $243.8M |
| Q2 2023 | 81 | $122.1M |
| Q1 2023 | 90 | $117.0M |
| Q4 2022 | 86 | $132.6M |
| Q3 2022 | 76 | $86.7M |
| Q2 2022 | 100 | $110.5M |
| Q1 2022 | 117 | $187.4M |
| Q4 2021 | 122 | $178.3M |
| Q3 2021 | 108 | $238.7M |
| Q2 2021 | 105 | $235.6M |
| Q1 2021 | 119 | $307.8M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Matrix Service Co; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Alliancebernstein L.P. | 113,740 | $1.33M | 0.00% | −4,430−3.7% | Reduced |
| Victory Capital Management Inc | 120,951 | $1.39M | 0.00% | +11,434+10.4% | Added |
| Prescott Group Capital Management, L.L.C. | 123,392 | $1.42M | 0.14% | +32,992+36.5% | Added |
| Arrowstreet Capital, Limited Partnership | 143,817 | $1.65M | 0.00% | −261,793−64.5% | Reduced |
| Panagora Asset Management Inc | 156,268 | $1.79M | 0.01% | +10,016+6.8% | Added |
| Country Trust Bank | 165,237 | $1.90M | 0.04% | +32,575+24.6% | Added |
| BNP Paribas Arbitrage, SA | 171,592 | $1.97M | 0.00% | +68,772+66.9% | Added |
| Vanguard Fiduciary Trust Co | 181,338 | $2.08M | 0.00% | +181,338 | New |
| Gsa Capital Partners LLP | 185,534 | $2.13M | 0.13% | −26,679−12.6% | Reduced |
| Vanguard Portfolio Management LLC | 188,161 | $2.16M | 0.00% | +188,161 | New |
| Algert Global LLC | 192,525 | $2.21M | 0.03% | +9,710+5.3% | Added |
| Qube Research & Technologies Ltd | 220,576 | $2.53M | 0.00% | −4,899−2.2% | Reduced |
| Northern Trust Corp | 240,552 | $2.76M | 0.00% | +14,305+6.3% | Added |
| Renaissance Technologies LLC | 255,800 | $2.94M | 0.00% | +5,200+2.1% | Added |
| De Lisle Partners LLP | 258,790 | $2.97M | 0.35% | +855+0.3% | Added |
| JPMorgan Chase & Co | 275,307 | $3.06M | 0.00% | +14,734+5.7% | Added |
| Goldman Sachs Group Inc | 272,390 | $3.13M | 0.00% | −14,976−5.2% | Reduced |
| Morgan Stanley | 302,698 | $3.47M | 0.00% | +12,376+4.3% | Added |
| Congruence Capital, LLC | 304,145 | $3.49M | 1.17% | +210,949+226.3% | Added |
| Jane Street Group, LLC | 313,175 | $3.60M | 0.00% | +203,567+185.7% | Added |
| Marshall Wace, LLP | 313,296 | $3.60M | 0.00% | +281,824+895.5% | Added |
| Jacobs Levy Equity Management, Inc | 350,987 | $4.03M | 0.02% | +24,754+7.6% | Added |
| Russell Investments Group, Ltd. | 356,785 | $4.10M | 0.00% | −35,105−9.0% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 363,108 | $4.17M | 0.01% | −23,529−6.1% | Reduced |
| CenterBook Partners LP | 431,425 | $4.95M | 0.27% | −202,621−32.0% | Reduced |
| Bank of New York Mellon Corp | 466,897 | $5.36M | 0.00% | −26,732−5.4% | Reduced |
| Citadel Advisors LLC | 472,047 | $5.42M | 0.00% | +243,638+106.7% | Added |
| Acadian Asset Management LLC | 476,089 | $5.46M | 0.01% | +178,300+59.9% | Added |
| Millennium Management LLC | 476,411 | $5.47M | 0.00% | −10,257−2.1% | Reduced |
| AQR Capital Management LLC | 498,941 | $5.73M | 0.00% | +133,703+36.6% | Added |
| First Wilshire Securities Management Inc | 522,838 | $6.00M | 1.35% | −90,179−14.7% | Reduced |
| State Street Corp | 545,485 | $6.26M | 0.00% | +12,000+2.2% | Added |
| Two Sigma Investments, LP | 637,691 | $7.32M | 0.01% | +436,981+217.7% | Added |
| Dimensional Fund Advisors LP | 663,939 | $7.62M | 0.00% | −4,799−0.7% | Reduced |
| Geode Capital Management, LLC | 685,373 | $7.87M | 0.00% | +17,403+2.6% | Added |
| Azarias Capital Management, L.P. | 817,021 | $9.38M | 4.20% | +86,254+11.8% | Added |
| First Eagle Investment Management, LLC | 850,809 | $9.77M | 0.02% | +210,726+32.9% | Added |
| Harvey Partners, LLC | 905,000 | $10.4M | 0.84% | +52,322+6.1% | Added |
| Westerly Capital Management, LLC | 965,000 | $11.1M | 3.41% | −23,000−2.3% | Reduced |
| American Century Companies Inc | 981,639 | $11.3M | 0.01% | +98,074+11.1% | Added |
| Vanguard Capital Management LLC | 1,196,787 | $13.7M | 0.00% | +1,196,787 | New |
| Gendell Jeffrey L | 1,231,307 | $14.1M | 0.19% | +173,746+16.4% | Added |
| Needham Investment Management LLC | 1,435,000 | $16.5M | 0.84% | 00.0% | Unchanged |
| BlackRock, Inc. | 2,014,217 | $23.1M | 0.00% | −1,672,568−45.4% | Reduced |
| Oberweis Asset Management Inc | 0 | $0 | 0.00% | −226,575−100.0% | Sold out |
| Stanley-Laman Group, Ltd. | 0 | $0 | 0.00% | −181,563−100.0% | Sold out |
| Royce & Associates LP | 0 | $0 | 0.00% | −120,782−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −88,800−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −41,395−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −35,826−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −35,500−100.0% | Sold out |
| Integrated Quantitative Investments LLC | 0 | $0 | 0.00% | −27,447−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −25,080−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −20,720−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −17,779−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −16,319−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −11,414−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −2,645−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −2,219−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −852−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |