American Financial Group Inc (AFG) insider trading

Recent insider transactions reported to the SEC on Form 4 — directors and officers buying or selling their own company’s stock. Sourced directly from public SEC filings, latest filed Sep 18, 2026.

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Filings shown
10
Open-market buys
0
Open-market sells
7

Counts cover the 10 most recent Form 4 filings Tradune holds for AFG (filed Jun 2 – Sep 18, 2026); the score below covers only the trailing 90 days (0 buys, 5 sells). No completed check of AFG's Form 4 list on SEC EDGAR is on record yet; the latest AFG filing Tradune holds was filed Sep 18, 2026. This is not guaranteed to be the complete record — see AFG's full Form 4 filing history on SEC EDGAR.

Open-market activity, last 90 days

Purchases (Form 4 code P) and sales (code S) on the 5 filings Tradune holds for AFG filed Aug 7 – Sep 18, 2026. Grants, exercises, tax withholding and the other Form 4 transaction codes are left out.

5 open-market sales by Rule 10b5-1 checkbox

On filings with the 10b5-1 box checked
0 sales· 0 sh
checkbox disclosed
On filings with the box not checked
5 sales· 95,042 sh
not proof that no plan exists
Not comparable
0 sales· 0 sh
filed before Apr 1, 2023, or no checkbox value in the filing data

Counts are Form 4 lines as filed. The checkbox is one per filing, so every sale on a filing with the box checked is counted there even if only some of its transactions were under a plan; it records what the filer disclosed, and the three categories are not a judgement about why a sale was made.

Open-market purchases and sales by insider
Insider Buys Sells Shares bought Shares sold Value
Carl H. Lindner IIICo-CEO 0 2 — 90,000 −$12,988,604
Mark A. WeissSr. VP & General Counsel 0 1 — 2,813 −$407,210
John I. Von LehmanDirector 0 1 — 1,279 −$183,971
Brian S. HertzmanSVP, CFO 0 1 — 950 −$135,727

Value = shares × the price reported on each Form 4 (+ purchases, − sales); every open-market line in this window disclosed a price.

Insider-activity score
0/ 100
Net insider sales
0 distinct buyers0 buy · 5 sell tx

Summarises ~90 days of public SEC Form 4 activity — more distinct buyers, officer involvement and net buying score higher. A description of filing activity, not a rating or buy signal. How this score is computed →

How to read this: an open-market purchase (Form 4 code P) is a buy at the market price with the insider’s own money, as opposed to a grant, award or option exercise; an open-market sale is code S. When two or more distinct insiders report open-market purchases in the same 90-day window, this site labels that a cluster — a definition, not a forecast; see insider cluster buying. “Held after” is Form 4 Table I column 5; “Change” = shares ÷ holdings before the trade (held after − shares for an acquisition, held after + shares for a disposition).

Insider Buying at AFG

No open-market insider purchases (Form 4 code P) were reported for AFG between Jun 2, 2026 and Sep 18, 2026. The filings below may include other transaction types — sales, grants, option exercises, and tax withholding — shown for completeness; they are not open-market purchases.

Recent Form 4 filings

Source: SEC EDGAR Form 4 · transaction codes explained

David Lawrence Thompson Jr. President of Subsidiary · filed Sep 18, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Other acquisition / disposition 30,363 — 614,461 (indirect) +5.2% Sep 16, 2026
Other acquisition / disposition 119,914 — 476,958 (indirect) +34% Sep 16, 2026

† change in this filer’s own reported holding line (Form 4 Table I, col. 5), not of total company ownership; small prior holdings produce large percentages, so under 100 shares the prior holding is shown instead.

John I. Von Lehman Director · filed Sep 14, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Open-market sale 10b5-1 box not checked 1,279 $143.84 12,483 −9.3% Sep 14, 2026

“10b5-1 box checked” = the filer checked the Form 4 box stating that a transaction on the filing was made under a plan intended to satisfy Rule 10b5-1(c); “10b5-1 box not checked” = the box was left blank, which does not prove that no plan exists. The box applies to Form 4s filed from April 1, 2023; older filings, and boxes we could not read, carry no tag. What the 10b5-1 box means.

Brian S. Hertzman SVP, CFO · filed Sep 2, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Open-market sale 10b5-1 box not checked 950 $142.87 11,123 −7.9% Sep 2, 2026
Carl H. Lindner III Co-CEO · filed Aug 26, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Open-market sale 10b5-1 box not checked 81,373 $144.28 3,060,068 (indirect) −2.6% Aug 26, 2026
Open-market sale 10b5-1 box not checked 8,627 $144.66 3,141,441 (indirect) −0.3% Aug 24, 2026
Mark A. Weiss Sr. VP & General Counsel · filed Aug 7, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Open-market sale 10b5-1 box not checked 2,813 $144.76 6,648 (indirect) −30% Aug 6, 2026
Michelle A. Gillis Senior Vice President · filed Jun 25, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Open-market sale 10b5-1 box not checked 2,247 $139.00 13,135 −15% Jun 24, 2026
David Lawrence Thompson Jr. President of Subsidiary · filed Jun 24, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Open-market sale 10b5-1 box not checked 11,370 $135.05 584,098 (indirect) −1.9% Jun 23, 2026
Amy Y. Murray Director · filed Jun 2, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Grant / award 1,299 — 3,950 +49% Jun 1, 2026
Evans N. Nwankwo Director · filed Jun 2, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Grant / award 1,299 — 7,646 +20% Jun 1, 2026
Roger K. Newport Director · filed Jun 2, 2026 · SEC ↗
TransactionSharesPriceHeld afterChange†Date
Grant / award 1,299 — 4,961 +35% Jun 1, 2026

Insider filings reported around the same time

Other companies whose most recent Form 4 was filed closest to AFG's (Sep 18, 2026).

Frequently asked about AFG insider activity

How many insiders bought AFG stock in these Form 4 filings?

No open-market purchases (Form 4 code P) of AFG shares were reported by American Financial Group Inc insiders between Jun 2, 2026 and Sep 18, 2026. The 10 filings shown on this page cover other transaction types — sales, grants, option exercises, and tax withholding.

Who filed the most recent Form 4 for AFG?

The most recent Form 4 on this page was filed by David Lawrence Thompson Jr. (President of Subsidiary) on Sep 18, 2026, reporting 2 transactions. The original document is linked from the filing list above on SEC EDGAR. Amended filings (Form 4/A) may later revise reported figures.

What was the largest open-market AFG insider sale shown?

The largest open-market sale among the filings shown was 81,373 AFG shares at $144.28 (about $11,740,594) by Carl H. Lindner III (Co-CEO) on Aug 26, 2026. Value is shares × the price reported on the Form 4; its Rule 10b5-1 box is not checked.

New to Form 4s? The transaction codes, the 90-day window and the 0–100 score are defined on the insider-activity score methodology page.

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This score summarizes SEC Form 4 filing activity over the trailing 90 days. It is descriptive, not predictive — not a rating, recommendation, or investment advice. Data: SEC EDGAR (public domain), as filed; amendments may revise figures. Tradune is not a registered investment adviser.

Data as filed; amended filings (Form 4/A) may revise figures. Sales may occur under prearranged Rule 10b5-1 trading plans.