Form4insider filings, from the source

Company · CIK 0001042046 · SIC 6331 — Fire, Marine & Casualty Insurance · NYSE

AMERICAN FINANCIAL GROUP INC · AFG

Insider activity reported against this company. All insider holders · Files at: SGM, MDLY. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market activity at this companybuys $0 · 0sales $13.7M · 4net −$13.7M
$10k$10k$1M$1M$100M$100MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 JForm 4 →Sep 18, 4:30 pm EDTDavid Lawrence Thompson Jr.President of Subsidiary, Director150,277——476,958—
Sep 14, 2026 SForm 4 →Sep 14, 5:00 pm EDTJohn I Von LehmanDirector1,279$143.84$183,97112,483−9.29%
Sep 2, 2026 SForm 4 →Sep 2, 4:45 pm EDTBrian S. HertzmanSVP, CFO950$142.87$135,72711,123−7.87%
Aug 24, 2026 SForm 4 →Aug 26, 4:30 pm EDTCarl H Lindner IIICo-CEO, Director90,000$144.32$12,988,6043,060,068−2.86%
Aug 6, 2026 SForm 4 →Aug 7, 4:30 pm EDTMark A WeissSr. VP & General Counsel2,813$144.76$407,2106,648−29.7%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.

Filed by this entity as an insider elsewhere — common stock

No reported common-stock activity in this period.

Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.