| Date | Event |
| 23-Nov-09 | Price hit new 52-week high ($112.99) |
| 16-Nov-09 | Price hit new 52-week high ($112.83) |
| 10-Nov-09 | Price hit new 52-week high ($109.65) |
| 27-Oct-09 | NEWMARKET CORP Files SEC form 10-Q, Quarterly Report |
| 22-Oct-09 | NEWMARKET CORP Files SEC form 8-K, Results of Operations and Financial Condition, Other Events, Financial Statements |
| 11-Sep-09 | Ex-Date for dividend payment of $0.25 |
| 30-Jul-09 | NEWMARKET CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 29-Jul-09 | NEWMARKET CORP Files SEC form 10-Q, Quarterly Report |
| 28-Jul-09 | NEWMARKET CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 30-Jun-09 | NEWMARKET CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 11-Jun-09 | Ex-Date for dividend payment of $0.25 |
| 29-Apr-09 | NEWMARKET CORP Files SEC form 10-Q, Quarterly Report |
| 23-Apr-09 | NEWMARKET CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Results of Operations and Financial Co |
| 30-Mar-09 | NEWMARKET CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 23-Feb-09 | NEWMARKET CORP Files SEC form 8-K, Change in Directors or Principal Officers, Amendments to Articles of Inc. or Bylaw |
| 20-Feb-09 | NEWMARKET CORP Files SEC form 10-K, Annual Report |
| 4-Feb-09 | NEWMARKET CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 6-Jan-09 | NEWMARKET CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 29-Dec-08 | NEWMARKET CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 23-Dec-08 | NEWMARKET CORP Files SEC form 8-K, Change in Directors or Principal Officers, Amendments to Articles of Inc. or Bylaw |
| 19-Dec-08 | NEWMARKET CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 30-Oct-08 | NEWMARKET CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 30-Oct-08 | NEWMARKET CORP Files SEC form 10-Q, Quarterly Report |