The contents of any websites referenced in this press release are not incorporated by reference herein.Additional Information about the Proposed Transaction and Where to Find It: This press release does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. Certain matters relating to the proposed transaction will be submitted to shareholders of Flagstone for their consideration. Flagstone shareholders are urged to read the preliminary proxy statement/prospectus included in the registration statement on Form S-4 that will be filed by Validus with the SEC in connection with the proposed transaction when it is filed, any supplement or amendment thereto that may be filed, and any other relevant documents that may be filed, with the SEC because they will contain important information. This press release is not a substitute for the proxy statement/prospectus or any other documents which Validus or Flagstone may file with the SEC and send to Flagstone shareholders in connection with the proposed transaction. All such documents, when filed, will be available free of charge at the SEC’s website ( www.sec.gov) or by directing a request to Validus through Jon Levenson, Executive Vice President, at +1-441-278-9000, or Flagstone through Brenton Slade, Chief Marketing Officer, at +1-441-278-4303. Participants in the Solicitation: Validus and Flagstone and their respective directors and officers may be deemed to be participants in any solicitation of Flagstone shareholders in connection with the proposed transaction. Information about Validus’ directors and officers is available in Validus’ definitive proxy statement, dated March 21, 2012, for its 2012 annual general meeting of shareholders. Information about Flagstone’s directors and officers is available in Flagstone’s definitive proxy statement, dated March 28, 2012, for its 2012 annual general meeting of shareholders. Other information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the proxy statement/prospectus included in the registration statement on Form S-4 and other relevant materials to be filed with the SEC when they become available. You can obtain such documents free of charge at the SEC’s website ( www.sec.gov) or by using the contact information above.