KEYCORP NEW

Non-GAAP financial measures have inherent limitations, are not required to be uniformly applied, and are not

audited. Although these non-GAAP financial measures are frequently used by investors to evaluate a company,

they have limitations as analytical tools, and should not be considered in isolation, nor as a substitute for analyses

of results as reported under GAAP.

The tangible common equity ratio and the return on tangible common equity ratio have been a focus for some investors, and management believes that these ratios may assist investors in analyzing Key’s capital position without regard to the effects of intangible assets and preferred stock. Since analysts and banking regulators may assess our capital adequacy using tangible common equity, we believe it is useful to enable investors to assess our capital adequacy on these same bases.

(a)For the three months ended September 30, 2024, intangible assets exclude less than $1 million of period-end purchased credit card receivables. Intangible assets exclude less than $1 million, $1 million, $1 million, and $1 million of period-end purchased credit card receivables for the three months ended June 30, 2024, March 31, 2024, December 31, 2023, and September 30, 2023.

(b)Net of capital surplus.

(c)For the three months ended September 30, 2024, June 30, 2024, March 31, 2024, December 31, 2023, and September 30, 2023, average intangible assets exclude less than $1 million, less than $1 million, $1 million, $1 million, and $1 million, respectively, of average purchased credit card receivables. For the both the nine months ended September 30, 2024, and September 30, 2023, average intangible assets exclude less than $1 million, and $1 million, respectively, of average purchased credit card receivables.

The cash efficiency ratio is a ratio of two non-GAAP performance measures, adjusted noninterest expense and total taxable-equivalent revenue. Accordingly, there is no directly comparable GAAP performance measure. The cash efficiency ratio excludes the impact of our intangible asset amortization from the calculation. We believe this ratio provides greater consistency and comparability between our results and those of our peer banks. Additionally, this ratio is used by analysts and investors to evaluate how effectively management is controlling noninterest expenses in generating revenue, as they develop earnings forecasts and peer bank analysis.