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 19, 2004 --------------------- ALLEGHANY CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-9371 51-0283071 ---------------------------- ------------ ------------------- (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 375 Park Avenue, Suite 3201 New York, New York 10152 ---------------------------------------- ------------ (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code (212) 752-1356 -------------- Item 5. Other Events and Regulation FD Disclosure. On August 19, 2004, Alleghany Corporation issued the press release attached hereto as Exhibit 99.1. Item 7. Financial Statements and Exhibits (c) Exhibits Exhibit Number Exhibit Description -------------- ------------------- 99.1 Press Release of Alleghany Corporation, dated August 19, 2004 Signature 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. ALLEGHANY CORPORATION /s/ Peter R. Sismondo ----------------------- By: Peter R. Sismondo Vice President, Controller, Treasurer and Assistant Secretary Date: August 20, 2004 Index to Exhibits Exhibit Number Exhibit Description -------------- ------------------- 99.1 Press Release of Alleghany Corporation, dated August 19, 2004