X0201 42003-12-31 0000876437 MGIC INVESTMENT CORP MTG 0000904293 LUBAR SHELDON B 700 NORTH WATER STREET SUITE 1200 MILWAUKEE WI 53202 1000Common Stock33094DCommon Stock16000IBy reporting person's spouseCommon Stock48000IBy the reporting person's childrenShare Units 2003-12-314A0245.872856.94ACommon Stock245.872813734.8558DThe reporting person disclaims beneficial ownership of shares reported herein which are owned by his wife and/or children.The reporting person participates in the MGIC Investment Corporation Deferred Compensation Plan for Non-Employee Directors under which units corresponding to shares of Common Stock of the Issuer ("Share Units") are acquired through compensation deferral. Dividends which would have been received on shares represented by Share Units are also invested in Share Units. The Share Units are settled in cash, generally at the time the reporting person ceases to be a Director of the Issuer.These Share Units do not have a specified dollar-denominated exercise or conversion price. (Their value is based, on a one-for-one basis, on the price of the Issuer's common stock on the New York Stock Exchange.) These Share Units were acquired through compensation deferral.These Share Units do not become exercisable or expire on a fixed date. (Generally, the Share Units become payable at the time the reporting person ceases to be a Director of the Issuer.) The number of Share Units beneficially owned by the reporting person includes Share Units owned prior to August 15, 1996, which were and continue to be exempt from Section 16 of the Securities and Exchange Act of 1934. The reporting person disclaims any waiver of such exemption.Dan D. Stilwell, Attorney-in-fact2003-12-31