================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 -------------- FORM 8-K -------------- CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 9, 2007 -------------- FLAGSTONE REINSURANCE HOLDINGS LIMITED (Exact name of registrant as specified in its charter) Bermuda 001-33364 98-0481623 (State or other jurisdiction of (Commission File Number) (IRS Employer incorporation) Identification No.) Crawford House, 23 Church Street, Hamilton HM 11, Bermuda (Address of principal executive offices; zip code) Registrant's telephone number, including area code: (441) 278-4300 (Former name or former address, if changed since last report): Not Applicable -------------- Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ================================================================================ ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION. On August 9, 2007, Flagstone Reinsurance Holdings Limited issued its Investor Financial Supplement relating to its financial results for the three and six months ended June 30, 2007. A copy of the Investor Financial Supplement is attached as Exhibit 99.1 to this Form 8-K. This Form 8-K and Exhibit 99.1 hereto are being furnished to the Securities and Exchange Commission (the "SEC") pursuant to Item 2.02 of Form 8-K and are therefore not to be considered "filed" with the SEC. ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS. (d) Exhibits. The following exhibit is furnished herewith: Exhibit No. Description ----------- ----------- 99.1 Investor Financial Supplement of Flagstone Reinsurance Holdings Limited for the three and six months ended June 30, 2007. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Date: August 10, 2007 FLAGSTONE REINSURANCE HOLDINGS LIMITED By: /s/ James O'Shaughnessy ------------------------- James O'Shaughnessy Chief Financial Officer EXHIBIT INDEX Exhibit No. Description ----------- ----------- 99.1 Investor Financial Supplement of Flagstone Reinsurance Holdings Limited for the three and six months ended June 30, 2007.