Markel Group Inc.
MKL- Exchange
- NYSE
- Industry
- Fire, Marine & Casualty Insurance
- SEC CIK
- 0001096343
No open-market purchases or sales by Markel Group Inc. insiders were filed in the last 90 days; 930 institutions reported holding it in 13F filings for Q2 2026, worth $18.8B in total; superinvestors Giverny Capital and Gardner Russo & Quinn hold it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Markel Group Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Markel Group Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Costanzo Brian J. | Chief Financial Officer | 1,632 | Jul 16, 2026 | 7 |
| Crowley Andrew G. | EVP & Pres., Markel Ventures | 2,749 | Jul 16, 2026 | 5 |
| Michael Jonathan E | Director | 333 | Jun 17, 2026 | 2 |
| Oreilly Michael | Director | 3,935 | Jun 17, 2026 | 2 |
| Morrison Harold Lawrence Jr. | Director | 1,127 | Jun 17, 2026 | 2 |
| Puckett A. Lynne | Director | 507 | Jun 17, 2026 | 3 |
| Leopold Diane | Director | 2,345 | Jun 17, 2026 | 3 |
| Cunningham Lawrence A | Director | 1,042 | Jun 17, 2026 | 2 |
| Besca Mark | Director | 1,222 | Jun 17, 2026 | 2 |
| Housel Morgan E. | Director | 1,029 | Jun 17, 2026 | 2 |
| Harris Greta J | Director | 645 | May 27, 2026 | 2 |
| Gayner Thomas Sinnickson | Chief Executive Officer | 56,260 | May 19, 2026 | 3 |
| Grinnan Richard Randolph | SVP, Chief Legal Officer & Sec | 4,147 | May 19, 2026 | 3 |
| Grandis Meade P. | CAO and Controller | 294 | Feb 26, 2026 | 1 |
| Wilson Simon | EVP and CEO, Markel Insurance | 2,397 | Feb 26, 2026 | 4 |
| Markel Steven A | Director | 60,368 | Dec 15, 2025 | 3 |
| Heaton Michael R | EVP & Chief Operating Officer | 4,709 | Dec 3, 2025 | 1 |
| Markel Anthony F | Director | 15,000 | Feb 25, 2025 | 0 |
| Noble Jeremy Andrew | President, Insurance | 4,888 | Feb 20, 2025 | 0 |
| Connell K Bruce | Director | 2,226 | Jul 14, 2023 | 0 |
| Davies Susan L. | CHRO, Markel Insurance | 848 | Dec 16, 2022 | 0 |
| Cox Robert C | Pres. & COO, Insur. Operations | 2,346 | Dec 7, 2022 | 0 |
| Whitt Richard R III | Co-Chief Executive Officer | 11,360 | Dec 7, 2022 | 0 |
| Kiscaden Bradley James | Pres/Chief Admin Off-Ins Ops | 8,090 | Feb 17, 2022 | 0 |
| Schreiner Linda V | SVP, Strategic Management | 1,528 | Dec 9, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 7, 2025 (view filing) | May 5 | 2 days | Grandis Meade P.CAO and Controller | SSale | −400 | $1,877.44 | −$751.0K | −8.5%4.32K after | |
| May 20, 2025 (view filing) | May 19 | 1 day | Grandis Meade P.CAO and Controller | SSale | −400 | $1,911.65 | −$764.7K | −9.3%3.92K after | |
| May 23, 2025 (view filing) | May 22 | 1 day | Cunningham Lawrence ADirector | PPurchase | +25 | $1,851.32 | +$46.3K | +3.0%856.47 after | 2 lots |
| May 27, 2025 (view filing) | May 23 | 4 days | Harris Greta JDirector | SSale | −90 | $1,861.44 | −$167.5K | −12.5%632 after | |
| Aug 27, 2025 (view filing) | Aug 25 | 2 days | Grandis Meade P.CAO and Controller | SSale | −75 | $1,983.78 | −$148.8K | −21.4%275 after | |
| Nov 25, 2025 (view filing) | Nov 25 | Same day | Wilson SimonCEO, Markel Insurance | SSale | −75 | $2,072.94 | −$155.5K | −4.1%1.77K after | |
| Dec 1, 2025 (view filing) | Nov 26-28 | 5 days | Markel Steven ADirector | SSale | −170 | $2,100.00 | −$357.0K | −0.3%61.7K after | 2 lots10b5-1 |
| Dec 15, 2025 (view filing) | Dec 11 | 4 days | Markel Steven ADirector | SSale | −1.33K | $2,119.12 | −$2.82M | −2.2%60.4K after | 16 lots10b5-1 |
| Feb 26, 2026 (view filing) | Feb 26 | Same day | Wilson SimonEVP and CEO, Markel Insurance | SSale | −100 | $2,079.48 | −$207.9K | −4.0%2.40K after | |
| May 5, 2026 (view filing) | May 1 | 4 days | Puckett A. LynneDirector | PPurchase | +57 | $1,795.53 | +$102.3K | +4.1%1.46K after | |
| May 8, 2026 (view filing) | May 6 | 2 days | Leopold DianeDirector | PPurchase | +100 | $1,792.61 | +$179.3K | +4.8%2.19K after | |
| May 8, 2026 (view filing) | May 7 | 1 day | Leopold DianeDirector | PPurchase | +50 | $1,789.19 | +$89.5K | +10.0%550 after | |
| May 27, 2026 (view filing) | May 22 | 5 days | Harris Greta JDirector | SSale | −76 | $1,847.31 | −$140.4K | −10.5%645 after | 3 lots |