X0306 4 2019-09-10 0 0001042046 AMERICAN FINANCIAL GROUP INC AFG 0000942082 LINDNER CARL H III 301 EAST FOURTH STREET CINCINNATI OH 45202 1 1 0 0 Co-CEO & Co-President Common Stock 2019-09-10 4 S 0 67000 104.1108 D 2853642 I See Footnotes Common Stock 2019-09-10 4 M 0 50000 38.11 A 2903642 I See Footnotes Common Stock 2019-09-10 4 S 0 50000 104.1108 D 2853642 I See Footnotes Common Stock 343162 I See Footnotes Common Stock 838480 I See Footnotes Common Stock 1428174 I See Footnotes Stock Option Exercise 38.11 2019-09-10 4 M 0 50000 0.00 D 2022-02-23 Common 50000 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.00 to $104.59, inclusive. The reporting person undertakes to provide to American Financial Group, Inc., ("AFG"), any security holder of AFG, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) and footnote (3). CHL III, TTEE (or his Successors) of the Carl H. Lindner III Family Trust DTD 8/29/02 as Amended. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.00 to $104.59 inclusive. Martha S. Lindner, (or her Successor) of the Martha S. Lindner Family Trust DTD 8/30/02 as amended. Seraphim Partners LLC CHL III 2010-1 Qualified Annuity Trust DTD 4/9/10. These Employee Stock Options become exercisable in five equal installments beginning on the first anniversary of the grant date. Carl H. Lindner III By: Karl J. Grafe, as Attorney-in-Fact 2019-09-12