| Date | Event |
| 17-Nov-09 | Price hit new 52-week high ($24.55) |
| 16-Nov-09 | Price hit new 52-week high ($24.49) |
| 13-Nov-09 | Price hit new 52-week high ($23.83) |
| 28-Oct-09 | NALCO HOLDING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 28-Oct-09 | Nalco Holding Company Earnings Call scheduled for 10:00 am ET today |
| 27-Oct-09 | Earnings announcement |
| 9-Oct-09 | NALCO HOLDING CO Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 11-Sep-09 | Ex-Date for dividend payment of $0.035 |
| 20-Aug-09 | NALCO HOLDING CO Files SEC form 8-K, Entry into a Material Definitive Agreement, Change in Directors or Principal Off |
| 14-Aug-09 | NALCO HOLDING CO Files SEC form 8-K, Regulation FD Disclosure |
| 10-Aug-09 | NALCO HOLDING CO Files SEC form 8-K, Entry into a Material Definitive Agreement, Change in Directors or Principal Off |
| 31-Jul-09 | NALCO HOLDING CO Files SEC form 10-Q, Quarterly Report |
| 29-Jul-09 | Nalco Holding Company Earnings Call scheduled for 10:00 am ET today |
| 29-Jul-09 | NALCO HOLDING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 20-Jul-09 | NALCO HOLDING CO Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhibits |
| 11-Jun-09 | Ex-Date for dividend payment of $0.035 |
| 15-May-09 | NALCO HOLDING CO Files SEC form 8-K, Entry into a Material Definitive Agreement, Creation of a Direct Financial Oblig |
| 4-May-09 | NALCO HOLDING CO Files SEC form 8-K, Amendments to Articles of Inc. or Bylaws; Change in Fiscal Year, Financial State |
| 30-Apr-09 | NALCO HOLDING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 17-Mar-09 | NALCO HOLDING CO Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 10-Mar-09 | NALCO HOLDING CO Files SEC form 10-K/A, Annual Report |
| 10-Mar-09 | NALCO HOLDING CO Files SEC form 8-K, Entry into a Material Definitive Agreement |
| 9-Mar-09 | NALCO HOLDING CO Files SEC form 8-K, Other Events |
| 25-Feb-09 | NALCO HOLDING CO Files SEC form 10-K, Annual Report |
| 4-Feb-09 | NALCO HOLDING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 12-Jan-09 | NALCO HOLDING CO Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 7-Jan-09 | NALCO HOLDING CO Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhibits |
| 26-Nov-08 | NALCO HOLDING CO Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhibits |
| 17-Nov-08 | NALCO HOLDING CO Files SEC form 8-K, Entry into a Material Definitive Agreement |
| 14-Nov-08 | NALCO HOLDING CO Files SEC form 8-K, Change in Directors or Principal Officers |
| 30-Oct-08 | NALCO HOLDING CO Files SEC form 10-Q, Quarterly Report |
| 29-Oct-08 | NALCO HOLDING CO Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |