| 2018-06-15 | Sale | Matrix Service Company MTRX | President Emeritus Matrix Serv | 8,204 0.031% | $19.14 | $157,019 | +7.14% | |
| 2018-06-14 | Sale | Matrix Service Company MTRX | President Emeritus Matrix Serv | 8,484 0.0316% | $19.29 | $163,662 | +4.92% | |
| 2018-06-13 | Sale | Matrix Service Company MTRX | President Emeritus Matrix Serv | 5,548 0.0205% | $18.95 | $105,135 | +5.74% | |
| 2016-12-15 | Sale | Matrix Service Company MTRX | President, Matrix Service | 20,000 0.0751% | $21.88 | $437,550 | -32.57% | |
| 2016-11-30 | Sale | Matrix Service Company MTRX | President, Matrix Service | 20,000 0.0756% | $20.94 | $418,716 | -29.02% | |
| 2016-11-18 | Sale | Matrix Service Company MTRX | President, Matrix Service | 20,000 0.0751% | $19.59 | $391,785 | -24.68% | |
| 2016-09-16 | Sale | Matrix Service Company MTRX | President, Matrix Service | 10,832 0.0413% | $18.30 | $198,228 | -10.16% | |
| 2016-09-09 | Sale | Matrix Service Company MTRX | President, Matrix Service | 4,300 0.0166% | $19.01 | $81,750 | -11.58% | |
| 2016-03-11 | Sale | Matrix Service Company MTRX | President, Matrix Service | 10,600 0.0395% | $19.00 | $201,400 | -5.61% | |
| 2015-12-02 | Sale | Matrix Service Company MTRX | President, Matrix Service | 14,418 0.0541% | $22.53 | $324,848 | -19.76% | |
| 2014-05-30 | Sale | Matrix Service Company MTRX | President Matrix Service | 12,524 0.048% | $32.88 | $411,742 | -31.64% | |
| 2014-05-29 | Sale | Matrix Service Company MTRX | President Matrix Service | 9,476 0.0232% | $20.62 | $195,379 | -30.28% | |
| 2014-05-22 | Sale | Matrix Service Company MTRX | President Matrix Service | 15,000 0.0571% | $32.97 | $494,520 | -31.73% | |
| 2014-05-20 | Sale | Matrix Service Company MTRX | President Matrix Service | 15,000 0.0571% | $32.25 | $483,692 | -29.78% | |
| 2014-05-16 | Sale | Matrix Service Company MTRX | President Matrix Service | 9,400 0.0202% | $18.52 | $174,056 | -30.49% | |
| 2014-02-21 | Sale | Matrix Service Company MTRX | President Matrix Service | 30,000 0.0652% | $18.37 | $551,184 | -14.48% | |
| 2013-06-06 | Sale | Matrix Service Company MTRX | President Matrix Service | 10,600 0.0376% | $15.50 | $164,249 | +29.83% | |
| 2007-05-21 | Sale | Matrix Service Company MTRX | President Emeritus Matrix Serv | 2,000 0.0015% | $4.60 | $9,200 | -18.09% | |
| 2007-04-10 | Sale | Matrix Service Company MTRX | President Emeritus Matrix Serv | 2,000 0.0016% | $4.60 | $9,200 | -6.11% | |
| 2007-03-21 | Sale | Matrix Service Company MTRX | President Emeritus Matrix Serv | 2,000 0.002% | $4.60 | $9,200 | +23.48% |