Company: AFGC
Filing Date: 2025-09-17
Form Type: 424B5
Source: 0001140361-25-035246
Chunk: 15

Company: AMERICAN FINANCIAL GROUP INC
Filing Date: 2025-09-17
Form: 424B5
Chunk 15
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excluding accumulated other comprehensive income (loss)) |

S-11

#### TABLE OF CONTENTS

### DESCRIPTION OF SENIOR NOTES
Set forth below is a description of the specific terms of the senior notes. This description supplements, and should be read together with, the description of the general terms and provisions of our debt securities set forth in the accompanying prospectus under the caption “Description of Debt Securities.” Any information regarding the senior notes contained in this prospectus supplement that is inconsistent with information in the accompanying prospectus will supersede any inconsistent information in the accompanying prospectus. The following description does not purport to be complete and is subject to, and qualified in its entirety by reference to, the indenture, as supplemented by the tenth supplemental indenture, which will provide for the issuance of the senior notes which we collectively refer to as the “indenture,” between American Financial Group, Inc., as issuer, and U.S. Bank Trust Company, National Association, as trustee, which we refer to as the “trustee,” pursuant to which the senior notes will be issued.

#### Principal, Maturity, Interest and Denomination
The principal amount of senior notes offered for sale pursuant to this prospectus supplement is $350 million. The senior notes will mature on September 23, 2035. The senior notes will bear interest from the date of issuance, payable semi-annually on March 23 and September 23 of each year, beginning on March 23, 2026, to the person in whose name a senior note is registered at the close of business on March 8 or September 8, as the case may be, next preceding such interest payment date. The senior notes will be issued in book entry form in denominations of $2,000 and integral multiples of $1,000 in excess thereof.

Interest payments on the senior notes shall be computed and paid on the basis of a 360-day year of twelve 30-day months. In the event that any date on which interest is payable on the senior notes is not a business day, then the payment of interest payable on such date will be made on the next succeeding day that is a business day.

There is no limit on the aggregate principal amount of senior notes of this series that we may issue. We reserve the right, from time to time and without the consent of any registered holders of any of the senior notes, to re-open this series of senior notes and issue additional senior notes, upon the terms and subject to the conditions set forth in the indenture so