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 $15.6M · 6net −$15.6M
$10k$10k$1M$1M$100M$100MbuyssalesSep 2024Jan 2025May 2025Sep 2025Jan 2026May 2026Sep 2026

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%
Jun 24, 2026 SForm 4 →Jun 25, 4:30 pm EDTMichelle A GillisSenior Vice President2,247$139.00$312,33313,135−14.6%
Jun 23, 2026 SForm 4 →Jun 24, 4:30 pm EDTDavid Lawrence Thompson Jr.President of Subsidiary, Director11,370$135.05$1,535,496584,098−1.91%

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.