1 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): November 22, 1998 CMAC INVESTMENT CORPORATION --------------------------------------------------------- (Exact Name of Registrant Specified in Charter) Delaware 1-11356 23-2691170 -------- ------- ---------- (State or Other (Commission File (I.R.S. Employer Jurisdiction of Number) Identification No.) Incorporation) 1601 Market Street Philadelphia, Pennsylvania 19103 - ------------------------------------------------- ------------------- (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code: (215) 564-6600 Not Applicable -------------------------------------------------------------- (Former Name or Former Address, if Changed Since Last Report) 2 ITEM 5. OTHER EVENTS Reference is made to the Agreement and Plan of Merger, dated as of November 22, 1998, by and between CMAC Investment Corporation, a Delaware corporation, and Amerin Corporation, a Delaware corporation, and to the Joint Press Release, dated November 23, 1998, issued by CMAC Investment Corporation and Amerin Corporation attached as Exhibit 2.1 and Exhibit 99.1, respectively, which are incorporated by reference herein. ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS (c) Exhibits Exhibit Number Description -------------- ----------- 2.1 Agreement and Plan of Merger, dated as of November 22, 1998, between CMAC Investment Corporation and Amerin Corporation 99.1 Joint Press Release, dated November 23, 1998, issued by CMAC Investment Corporation and Amerin Corporation 1 3 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. CMAC INVESTMENT CORPORATION By /s/ Howard S. Yaruss --------------------- Howard S. Yaruss Senior Vice President and General Counsel Dated: November 25, 1998 2 4 EXHIBIT INDEX Exhibit Number Description -------------- ----------- 2.1 Agreement and Plan of Merger, dated as of November 22, 1998, by and among CMAC Investment Corporation and Amerin Corporation. 99.1 Joint Press Release, dated November 23, 1998, issued by CMAC Investment Corporation and Amerin Corporation.