| Date | Event |
| 9-Feb-10 | ZOLTEK COMPANIES INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhi |
| 8-Feb-10 | ZOLTEK COMPANIES INC Files SEC form 10-Q, Quarterly Report |
| 2-Dec-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhi |
| 30-Nov-09 | ZOLTEK COMPANIES INC Files SEC form 10-K, Annual Report |
| 11-Sep-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 12-Aug-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhi |
| 5-Jun-09 | Price hit new 52-week high ($12.63) |
| 2-Jun-09 | Price hit new 52-week high ($11.46) |
| 29-May-09 | Price hit new 52-week high ($9.99) |
| 12-May-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhi |
| 11-May-09 | ZOLTEK COMPANIES INC Files SEC form 10-Q, Quarterly Report |
| 7-May-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Change in Directors or Principal Officers, Other Events |
| 27-Apr-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 2-Apr-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 10-Feb-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 9-Feb-09 | ZOLTEK COMPANIES INC Files SEC form 10-Q, Quarterly Report |
| 30-Jan-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 9-Jan-09 | ZOLTEK COMPANIES INC Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |