| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2009-06-03 | BABSON CAPITAL MANAGEMENT LLC | MFRI INC | 655,000 | 9.6% | EDGAR |
| SC 13G/A | 2009-05-08 | HEARTLAND ADVISORS INC | MFRI INC | 576,000 | 8.5% | EDGAR |
| SC 13G/A | 2009-02-18 | WEDBUSH, Inc. | MFRI INC | 452,530 | 6.7% | EDGAR |
| SC 13G | 2009-02-17 | GOODNOW INVESTMENT GROUP, LLC | MFRI INC | 345,047 | 5.1% | EDGAR |
| SC 13G/A | 2009-02-13 | BABSON CAPITAL MANAGEMENT LLC | MFRI INC | 655,000 | 9.6% | EDGAR |
| SC 13G/A | 2009-02-12 | GENDELL JEFFREY L ET AL | MFRI INC | 100,684 | 1.5% | EDGAR |
| SC 13G/A | 2008-12-02 | CANNELL J CARLO | MFRI INC | 205,865 | 3.0% | EDGAR |
| SC 13G/A | 2008-02-15 | WEDBUSH, Inc. | MFRI INC | 439,734 | 6.6% | EDGAR |
| SC 13G/A | 2008-02-15 | CANNELL CAPITAL LLC | MFRI INC | 0 | 0.0% | EDGAR |
| SC 13G/A | 2008-02-15 | CANNELL J CARLO | MFRI INC | 568,065 | 8.5% | EDGAR |
| SC 13G | 2008-02-15 | BABSON CAPITAL MANAGEMENT LLC | MFRI INC | 615,000 | 9.2% | EDGAR |
| SC 13G | 2008-02-15 | CANNELL J CARLO | MFRI INC | 610,000 | 11.3% | EDGAR |
| SC 13G/A | 2008-02-01 | GENDELL JEFFREY L ET AL | MFRI INC | 106,484 | 1.6% | EDGAR |
| SC 13D | 2008-01-29 | CANNELL J CARLO | MFRI INC | 568,065 | 8.5% | EDGAR |
| SC 13G/A | 2007-08-08 | HEARTLAND ADVISORS INC | MFRI INC | 200,000 | 3.1% | EDGAR |
| SC 13G | 2007-02-16 | CANNELL CAPITAL LLC | MFRI INC | 610,000 | 9.3% | EDGAR |
| SC 13G/A | 2007-02-13 | GENDELL JEFFREY L ET AL | MFRI INC | 331,695 | 6.1% | EDGAR |
| SC 13G/A | 2007-02-13 | WEDBUSH, Inc. | MFRI INC | 366,849 | 6.8% | EDGAR |
| SC 13G | 2007-02-13 | BABSON CAPITAL MANAGEMENT LLC | MFRI INC | 479,300 | 8.8% | EDGAR |
| SC 13G/A | 2007-02-12 | HEARTLAND ADVISORS INC | MFRI INC | 350,000 | 6.5% | EDGAR |