# Markel Group Inc. (MKL) insider trading

> In the 12 months to Nov 12, 2026, 3 MKL insiders reported open-market sales of $3.7M across 5 filings; 2 insiders bought $371.1K.

Canonical: https://massive.com/quote/mkl/insider-trading
Latest filing: 2026-11-06 (last 12 months; source: SEC EDGAR)
Source: Massive (https://massive.com/docs/llms.txt)

## Summary

| Measure | Value | Detail |
| --- | --- | --- |
| Open-market sales | $3.7M | 5 filings · 3 insiders |
| Open-market purchases | $371.1K | 2 filings |
| Pre-arranged sales (10b5-1) | 2 of 5 | $3.2M of $3.7M sold (86%) |

## Open-market trades by insider

| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
| --- | --- | --- | --- | --- | --- | --- |
| Steven A. Markel | Director | $3.2M | — | 2 | 100% of sales | 2025-12-15 |
| Simon Wilson | CEO, Markel Insurance → EVP and CEO, Markel Insurance | $363.4K | — | 2 | — | 2026-02-26 |
| Diane Leopold | Director | — | $268.7K | 1 | — | 2026-05-08 |
| Greta J. Harris | Director | $140.4K | — | 1 | — | 2026-05-27 |
| A. Lynne Puckett | Director | — | $102.3K | 1 | — | 2026-05-05 |

## Open-market trades by filing

7 filings in the last 12 months, newest first.

| Filed | Traded | Insider | Role | Type | Shares | Avg price | Value | Held after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-05-27 | 2026-05-22 | Greta J. Harris | Director | Sale | 76 | $1,847.31 | $140.4K | 672 | — |
| 2026-05-08 | 2026-05-06 | Diane Leopold | Director | Purchase | 150 | $1,791.47 | $268.7K | Multiple accounts | — |
| 2026-05-05 | 2026-05-01 | A. Lynne Puckett | Director | Purchase | 57 | $1,795.53 | $102.3K | 1,463 | — |
| 2026-02-26 | 2026-02-26 | Simon Wilson | EVP and CEO, Markel Insurance | Sale | 100 | $2,079.48 | $207.9K | 2,397 | — |
| 2025-12-15 | 2025-12-11 | Steven A. Markel | Director | Sale (10b5-1) | 1,330 | $2,119.12 | $2.8M | 60,488 | — |
| 2025-12-01 | 2025-11-26 | Steven A. Markel | Director | Sale (10b5-1) | 170 | $2,100.00 | $357.0K | 61,698 | — |
| 2025-11-25 | 2025-11-25 | Simon Wilson | CEO, Markel Insurance | Sale | 75 | $2,072.94 | $155.5K | 1,770 | — |

## Other insider activity (not market trades)

- Tax withholding: 11 records
- Grants and awards: 15 records
- Gifts: 2 records
- Other: 17 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

## How to read this page

- **Open-market purchase or sale**: A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- **Pre-arranged (10b5-1)**: The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- **Role**: The title on each filing. Someone whose title changed shows more than one.
- **Filing date**: Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.

## FAQ

### Has Markel Group Inc.'s CEO sold stock?

Yes. Simon Wilson (CEO) sold 175 shares ($363.4K) between Nov 2025 and Feb 2026. Thomas Sinnickson Gayner (CEO) made no open-market sales filed as CEO in the last 12 months.

### How current is MKL’s insider data?

These are MKL Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.

### What counts as an open-market buy or sell?

Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.

## Live data

This page joins two Massive endpoints: Form 4 filings and daily prices. The MKL Form 4 request:

- `GET https://api.massive.com/stocks/filings/vX/form-4?tickers=MKL&filing_date.gte=2025-11-12&sort=filing_date.desc&limit=500`

Requests need a Massive API key. API reference for agents: https://massive.com/docs/llms.txt. Connect an AI agent through the Massive MCP server: https://massive.com/docs/ai-tools.

## Related

- [Markel Group Inc. (MKL) stock price](https://massive.com/quote/mkl.md)
- [Recent insider trading](https://massive.com/quote/insider-trading.md)
- [Markets overview](https://massive.com/quote/index.md)

Nothing here is investment advice. Data and content are provided for informational purposes under the Massive Terms of Service: https://massive.com/terms