| SC 13G/A | 2010-04-06 | ROYCE & ASSOCIATES LLC | Heritage-Crystal Clean, Inc. | 1,074,447 | 10.0% | EDGAR |
| SC 13G/A | 2010-02-16 | Brinckman Donald | Heritage-Crystal Clean, Inc. | 550,439 | 5.1% | EDGAR |
| SC 13G | 2010-01-25 | ROYCE & ASSOCIATES LLC | Heritage-Crystal Clean, Inc. | 628,347 | 5.9% | EDGAR |
| SC 13G/A | 2010-01-19 | Heritage Group | Heritage-Crystal Clean, Inc. | 3,389,958 | 31.7% | EDGAR |
| SC 13G | 2009-02-17 | Chalhoub Joseph | Heritage-Crystal Clean, Inc. | 1,632,010 | 15.4% | EDGAR |
| SC 13G | 2009-02-17 | Brinckman Donald | Heritage-Crystal Clean, Inc. | 548,012 | 5.2% | EDGAR |
| SC 13G | 2009-02-17 | BRUCKMANN ROSSER SHERRILL & CO II LP | Heritage-Crystal Clean, Inc. | 951,530 | 8.9% | EDGAR |
| SC 13G | 2009-02-13 | Heritage Group | Heritage-Crystal Clean, Inc. | 3,389,958 | 31.8% | EDGAR |