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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

X0202 SCHEDULE 13D/A 0001042046-04-000030 0000942082 XXXXXXXX LIVE 11 Common Stock, no par value 04/03/2026 0001042046 025932104 American Financial Group, Inc. 301 East Fourth Street Cincinnati OH 45202 Mark A. Weiss, Esq. (513) 362-0158 301 East Fourth Street Cincinnati OH 45202 0000942082 N Carl H. Lindner III X1 3707504 1116162 4482150 1116162 5662146 6.8 IN This Amendment No. 11 amends and restates the Schedule 13D originally filed on May 11, 2004, as amended through Amendment No. 10 filed on March 31, 2020. This Amendment No. 11 is being filed voluntarily to update the Reporting Person's beneficial ownership and is not the result of any transaction in AFG securities. Common Stock, no par value American Financial Group, Inc. 301 East Fourth Street Cincinnati OH 45202 This Schedule 13D is filed on behalf of Carl H. Lindner III (the "Reporting Person") with respect to the Common Shares (the "Common Shares") of American Financial Group, Inc. ("AFG"). The principal executive offices of AFG are located at 301 East Fourth Street, Cincinnati, Ohio 45202. Carl H. Lindner III 301 East Fourth Street, Cincinnati, Ohio 45202 Individual Investor None None United States Citizen Not applicable. The Reporting Person is the Co-Chief Executive Officer of AFG and also serves on the Board of Directors. In these capacities, Mr. Lindner has responsibility for AFG's management and strategic direction. Additionally, in his capacity as a shareholder of the Company, Mr. Lindner reviews his investment in the Company on a continuous basis. Mr. Lindner may from time to time acquire additional Common Shares or dispose of a portion of the Common Shares that he beneficially owns. Any transactions that Mr. Lindner may pursue may be made at any time and from time to time without prior notice and will depend upon a variety of factors, including, without limitation, other investment and business opportunities available to Mr. Lindner, tax and estate planning considerations and other factors. Other than as described above in this Item 4, Mr. Lindner has no present plan or proposal relating to or that would result in any of the transactions or changes listed in Items 4(a) through 4(j) of Schedule 13D. As of April 3, 2026 the Reporting Person beneficially owned 5,662,146 shares (or approximately 6.8% of the outstanding shares) of Common Stock, which amount includes 3,643,670 shares held in trusts over which he holds voting and dispositive power; 343,162 shares held by a trust over which his spouse has voting and dispositive power; 838,480 shares held in a limited liability company over which shares he holds dispositive power; 509,622 shares held by a charitable foundation over which he shares voting and dispositive power with his brother, S. Craig Lindner and his mother; 63,834 shares held in trusts for family members over which he holds voting and dispositive power; and 263,378 shares held in two charitable foundations over which he and/or his spouse have or share voting and dispositive power. Within the 60-day period preceding the date of filing of this Amendment, the Reporting Person had engaged in the following transactions. Date Transaction Number of Shares Price 2/23/2026 Disposition(1) (3,810) $129.85/share 2/26/2026 Acquisition(2) 11,294 n/a (1) Represents shares withheld by AFG to satisfy taxes payable in connection with the vesting of previously-awarded shares of restricted stock. (2) Represents a grant of restricted stock pursuant to AFG's stock incentive plan. All shares cliff-vest four years after date of grant. Other than the Power of Attorney filed as part of Item 7, the Reporting Person has no contracts, arrangements, understandings or relationships with respect to the Common Shares. 99.1 Power of Attorney (previously filed) Carl H. Lindner III /s/ Mark A. Weiss Mark A. Weiss, as Attorney-in-Fact for Carl H. Lindner III 04/15/2026