| Date | Event |
| 6-Nov-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 10-Q, Quarterly Report |
| 26-Oct-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and |
| 14-Oct-09 | Price hit new 52-week high ($7.25) |
| 13-Oct-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and |
| 12-Oct-09 | Price hit new 52-week high ($6.96) |
| 9-Oct-09 | Price hit new 52-week high ($6.89) |
| 5-Oct-09 | Ultra Clean Holdings upgraded by Needham |
| 27-Aug-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 10-Q/A, Quarterly Report |
| 10-Aug-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 10-Q, Quarterly Report |
| 3-Aug-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Results of Operations and Financial Condition, Change in Directors or Pr |
| 4-May-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and |
| 15-Apr-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 19-Mar-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 10-K, Annual Report |
| 2-Mar-09 | Price hit new 52-week low ($0.95) |
| 17-Feb-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and |
| 6-Feb-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K/A, Entry into a Material Definitive Agreement, Creation of a Direct Finan |
| 5-Feb-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Entry into a Material Definitive Agreement |
| 26-Jan-09 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and |
| 4-Nov-08 | ULTRA CLEAN HOLDINGS INC Files SEC form 10-Q, Quarterly Report |
| 27-Oct-08 | ULTRA CLEAN HOLDINGS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and |