First Quarter 2017 Financial Review

Noninterest Expenses Declined $4MM, or 1% Seasonality in comp offset by lower restructuring costs & broad-based expense reduction Noninterest Expenses 518 ($ in millions) Restructuring 493 53 20 458 461 457 20 11 + $14MM Salaries & benefits + Annual stock comp + Higher payroll taxes + $4MM 4Q16 Gain on early termination of certain leased assets - - - $ 9MM Restructuring charges - $3MM Litigation-related expenses $2MM Outside processing $2MM Occupancy 1Q16 2Q16 3Q16 1Q17 compared to 4Q16 Estimated as of 4/18/17 4Q16 1Q17 - $ 2MM Equipment - $2MM FDIC insurance $2MM Advertising GEAR Up savings continue to be on track¹ Comerica Bank Active Capital Management Continued to return excess capital to shareholders 2016 CCAR Capital Plan (3Q16-2017) Increasing Shareholder Payout Equity repurchases up to $440 million ($ in millions) $301MM repurchased (5.4MM shares)1 through 1Q17 ■Equity Repurchases Dividends 147 ⚫1Q17 $105MM repurchased (1.5MM shares) 137 139 Additional Share Activity in 1Q17 103 42 40 40 79 ■ 4.1MM from employee stock activity & warrants exercised 38 • $24MM tax benefit from employee stock transactions 37 97 99 105 105 ■ 2.9MM increase in average diluted shares due to 65 42 employee stock activity & higher stock price 180 million diluted shares at 3/31/17 1Q17 Share Count Up with Stock Price 1Q16 2Q16 3Q16 4Q16 1Q17 Dividends Per Share Growth (in millions) ■Common Shares Outstanding (PE) Average Diluted Shares 0.89 0.92 0.83 0.79 192 187 185 0.68 181 177 180 188 0.55 182 179 176 175 177 11 T 2012 2013 2014 2015 2016 2012 2013 2014 2015 2016 1Q17 1Q17 Annualized 3/31/17 1Shares repurchased under equity repurchase program through 3/31/17 Comerica Bank 12

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