Company: KEY-PI
Filing Date: 2025-02-26
Form Type: 424B5
Source: 0001193125-25-036859
Chunk: 65

Company: KEYCORP /NEW/
Filing Date: 2025-02-26
Form: 424B5
Chunk 65
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 each interest determination date. Each time a new interest rate is determined, it becomes effective on the subsequent interest reset date. If any interest reset date is not a business day, then the interest reset date is S-36

postponed to the next succeeding business day, except, in the case of a SOFR note, a CORRA note or a EURIBOR note, in which case, if the next business day is in the next calendar month, the interest reset date is the immediately preceding business day. Date Interest Rate Is Determined Unless the applicable pricing supplement specifies otherwise, the interest determination date for all floating rate notes (except SOFR notes, CORRA notes, EURIBOR notes and Treasury Rate notes) will be the second business day before the interest reset date. Unless otherwise specified in the applicable pricing supplement, the interest determination date for any interest reset date will be:

| • |     | for SOFR notes, as set forth below under “Calculation of Interest—SOFR Notes” or in the applicable 
 pricing supplement;                                                                                |

| • |     | for CORRA notes, the applicable interest reset date; |

| • |     | for EURIBOR notes, the second T2 business day before the applicable interest reset date; and |

| • |     | for Treasury Rate notes, the day of the week in which the interest reset date falls on which Treasury bills of                                                                                                                                           
 the same index maturity are normally auctioned. Treasury bills are usually sold at auction on Monday of each week, unless that day is a legal holiday, in which case the auction is usually held on Tuesday. Sometimes, the auction is held on the       
 preceding Friday. If an auction is held on the preceding Friday, that day will be the interest determination date relating to the interest reset date occurring in the next week. If an auction date falls on any interest reset date, then the interest 
 reset date will instead be the first business day immediately following the auction date                                                                                                                                                                 |

Calculation Date Unless we specify a different date in a pricing supplement, the calculation date, if applicable, relating to an interest determination date will be the earlier of:

| (1) | the tenth calendar day after such interest determination date or, if such day is not a business day, the next 
 succeeding business day, or                                                                                   |

| (2) | the business day immediately preceding the relevant interest payment date or the maturity date, as the case may 
 be.                                                                                                             |

Upon the request of the beneficial holder of any floating rate