| Date | Event |
| 12-Jan-10 | Platinum Underwriters Holdings Ltd Earnings Call scheduled for Thu, Feb 18 |
| 29-Dec-09 | Price hit new 52-week high ($39.45) |
| 28-Dec-09 | Price hit new 52-week high ($39.37) |
| 24-Dec-09 | Price hit new 52-week high ($39.20) |
| 27-Nov-09 | Ex-Date for dividend payment of $0.08 |
| 9-Nov-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Other Events |
| 29-Oct-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statement |
| 22-Oct-09 | Platinum Underwriters Holdings Ltd Earnings Call scheduled for 8:00 am ET today |
| 21-Oct-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial State |
| 28-Aug-09 | Ex-Date for dividend payment of $0.08 |
| 29-Jul-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 10-Q, Quarterly Report |
| 24-Jul-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 21-Jul-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial State |
| 4-May-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 10-Q, Quarterly Report |
| 30-Apr-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Changes in Registrant's Certifying Accountant, Other Events, F |
| 23-Apr-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K/A, Results of Operations and Financial Condition |
| 22-Apr-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial State |
| 27-Feb-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Changes in Registrant's Certifying Accountant, Other Events, F |
| 27-Feb-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 10-K, Annual Report |
| 19-Feb-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial State |
| 15-Jan-09 | PLATINUM UNDERWRITERS HOLDINGS LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial State |