Exhibit 31.3
CERTIFICATIONS
I, Patrick Sinks, certify that:
| 1. | I have reviewed this this Amendment No. 1 on Form 10-K/A to the annual report on Form 10-K of MGIC Investment Corporation; and |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
Date: April 30, 2018
| /s/ Patrick Sinks |
| Patrick Sinks |
| Chief Executive Officer |
| (Principal Executive Officer) |