COMERICA INC — Director's Dealing 2017

May 2, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMERICA INC /NEW/ (CMA)
CIK: 0000028412
Period of Report: 2017-04-28

Reporting Person: FARMER CURTIS C (President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-04-28	Common Stock	M	21000	$39.16	Acquired	93191	Direct
2017-04-28	Common Stock	S	21000	$71.013	Disposed	72191	Direct
2017-04-28	Common Stock	M	22000	$39.10	Acquired	94191	Direct
2017-04-28	Common Stock	S	22000	$70.885	Disposed	72191	Direct
2017-04-28	Common Stock	M	15750	$29.60	Acquired	87941	Direct
2017-04-28	Common Stock	S	15650	$70.843	Disposed	72291	Direct
2017-04-28	Common Stock	S	100	$71.64	Disposed	72191	Direct
2017-04-28	Common Stock	M	5500	$33.79	Acquired	77691	Direct
2017-04-28	Common Stock	S	5500	$70.85	Disposed	72191	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-04-28	Employee Stock Option (right to buy)	$39.16	M	21000	Disposed	2020-07-27	Common Stock (21000)	Direct
2017-04-28	Employee Stock Option (right to buy)	$39.10	M	22000	Disposed	2021-01-25	Common Stock (22000)	Direct
2017-04-28	Employee Stock Option (right to buy)	$29.60	M	15750	Disposed	2022-01-24	Common Stock (15750)	Direct
2017-04-28	Employee Stock Option (right to buy)	$33.79	M	5500	Disposed	2023-01-22	Common Stock (5500)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$49.51	2024-01-21	Common Stock (6385)	6385	Direct
Employee Stock Option (right to buy)	$42.32	2025-01-27	Common Stock (7220)	7220	Direct
Employee Stock Option (right to buy)	$32.97	2026-01-26	Common Stock (11295)	11295	Direct
Employee Stock Option (right to buy)	$67.66	2027-01-24	Common Stock (5695)	5695	Direct

Footnotes

F1: Includes shares acquired through employee stock plans as of April 28, 2017.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.96 to $71.10, inclusive. The
reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request,
full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2), (3), (4) and (5) to this Form 4.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.64 to $71.58, inclusive.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.64 to $71.57, inclusive.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.69 to $71.54, inclusive.

F6: The options vest in four equal annual installments (based on the original grant amount) beginning on the date indicated in this column.