LIMITED POWER OF ATTORNEY KNOW ALL BY THESE PRESENTS, that the undersigned is required, or may be required in the future, to file reports of changes in beneficial ownership of equity securities of MGIC Investment Corporation (the "Company"). To facilitate the filing of these reports, the undersigned hereby appoints each of Timothy A. Chrapko, Shelby E. Heinrich, Heidi A. Heyrman, Paula C. Maggio, Brian M. Remington, Leslie A. Schunk, and Martha F. Tsuchihashi as the undersigned's attorney-in-fact and agent to: (i) apply on behalf of the undersigned for access codes (if necessary) for the EDGAR System, and (ii) sign on behalf of the undersigned and file any Form 3, Form 4, or Form 5 for the undersigned with the Securities and Exchange Commission or any securities exchange. Each of the persons authorized to act as such attorney-in-fact and agent above may do so separately without the concurrence of the other persons. The authority granted hereunder is granted to the person occupying the position specified at the time such authority is exercised. Dated: March 1, 2022 Signature: /s/ Teresita M. Lowman Please print or type name: Teresita M. Lowman ACKNOWLEDGMENT STATE OF CALIFORNIA ) COUNTY OF SAN DIEGO ) Before me, a Notary Public in and for the State of California, on this day personally appeared Teresita M. Lowman, known to me to be the person whose name is subscribed to the foregoing Limited Power of Attorney, and acknowledged to me that he/she executed the same for the purposes and consideration therein expressed. Given under my hand and official seal this 1st day of March 2022. (SEAL) By: /s/ Raj Wilfred Disouza Notary Public, State of California Print Name: Raj Wilfred Disouza My commission expires: April 5, 2023