Comerica (CMA) 10-Q 2019 Q3 Quarterly report

Exhibit 32

Section 1350 Certification of Periodic Report (pursuant to Section 906 of the Sarbanes-Oxley Act of 2002)

CERTIFICATION OF PERIODIC REPORT

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned, Curtis C. Farmer, President and Chief Executive Officer, and James J. Herzog, Executive Vice President, Treasurer and Interim Chief Financial Officer, of Comerica Incorporated (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

(1) the Quarterly Report on Form 10-Q of the Company for the quarterly period ended September 30, 2019 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:	October 30, 2019	/s/ Curtis C. Farmer
		Curtis C. Farmer
		President and Chief Executive Officer
		/s/ James J. Herzog
		James J. Herzog
		Executive Vice President, Treasurer and Interim Chief Financial Officer