| Date | Event |
| 9-Feb-10 | AUTOMATIC DATA PROCESSING INC Files SEC form 10-Q, Quarterly Report |
| 2-Feb-10 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |
| 2-Feb-10 | Earnings announcement |
| 17-Dec-09 | Automatic Data downgraded by Janney Mntgmy Scott |
| 9-Dec-09 | Ex-Date for dividend payment of $0.34 |
| 2-Dec-09 | Price hit new 52-week high ($44.50) |
| 17-Nov-09 | Price hit new 52-week high ($44.05) |
| 16-Nov-09 | Price hit new 52-week high ($44.00) |
| 12-Nov-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and |
| 6-Nov-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 10-Q, Quarterly Report |
| 4-Nov-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |
| 9-Sep-09 | Ex-Date for dividend payment of $0.33 |
| 28-Aug-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 10-K, Annual Report |
| 13-Aug-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 30-Jul-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |
| 25-Jun-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Entry into a Material Definitive Agreement, Creation of a Direct Fi |
| 8-May-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 10-Q, Quarterly Report |
| 5-May-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |
| 25-Mar-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 10-Feb-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 9-Feb-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 9-Feb-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 10-Q, Quarterly Report |
| 3-Feb-09 | AUTOMATIC DATA PROCESSING INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |