MARKEL GROUP INC. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| MARKEL STEVEN A | — | Sale | 50 | $2,103.55 | $105,178 | 61,584 | Dec 11, 2025 |
| GAYNER THOMAS SINNICKSON | Chief Executive Officer | Tax Withholding | 37 | $2,060.83 | $75,447 | 52,258 | Dec 2, 2025 |
| Wilson Simon | CEO, Markel Insurance | Tax Withholding | 94 | $2,060.83 | $193,718 | 1,676 | Dec 2, 2025 |
| Heaton Michael R | EVP & Chief Operating Officer | Tax Withholding | 217 | $2,060.83 | $447,983 | 4,709 | Dec 2, 2025 |
| Grinnan Richard Randolph | SVP, Chief Legal Officer & Sec | Tax Withholding | 138 | $2,060.83 | $284,415 | 3,463 | Dec 2, 2025 |
| Crowley Andrew G. | President, Markel Ventures | Tax Withholding | 65 | $2,060.83 | $133,480 | 1,914 | Dec 2, 2025 |
| Costanzo Brian J. | Chief Financial Officer | Tax Withholding | 22 | $2,060.83 | $44,761 | 954 | Dec 2, 2025 |
| MARKEL STEVEN A | — | Sale | 70 | $2,100.00 | $147,000 | 61,798 | Nov 28, 2025 |
| Wilson Simon | CEO, Markel Insurance | Sale | 75 | $2,072.94 | $155,471 | 1,770 | Nov 25, 2025 |
| MARKEL STEVEN A | — | Gift | 500 | — | — | 61,868 | Nov 17, 2025 |
| Costanzo Brian J. | Chief Financial Officer | Other | 2 | $1,624.66 | $3,006 | 976 | Sep 30, 2025 |
| Grandis Meade P. | CAO and Controller | Sale | 75 | $1,983.78 | $148,784 | 275 | Aug 25, 2025 |
| Crowley Andrew G. | President, Markel Ventures | Other | 6 | $1,779.25 | $9,999 | 1,979 | Jul 15, 2025 |
| Costanzo Brian J. | Chief Financial Officer | Other | 2 | $1,580.87 | $3,494 | 974 | Jun 30, 2025 |
| MICHAEL JONATHAN E | — | Other | 63 | $1,735.89 | $110,003 | 178 | Jun 13, 2025 |
| Morrison Harold Lawrence Jr. | — | Other | 32 | $1,735.89 | $54,993 | 1,005 | Jun 13, 2025 |
| Cunningham Lawrence A | — | Other | 63 | $1,735.89 | $110,003 | 920 | Jun 13, 2025 |
| Housel Morgan E. | — | Other | 63 | $1,735.89 | $110,003 | 874 | Jun 13, 2025 |
| Leopold Diane | — | Other | 63 | $1,735.89 | $110,003 | 2,090 | Jun 13, 2025 |
| Puckett A. Lynne | — | Other | 63 | $1,735.89 | $110,003 | 352 | Jun 13, 2025 |
| OREILLY MICHAEL | — | Other | 81 | $1,735.89 | $140,000 | 3,756 | Jun 13, 2025 |
| Crowley Andrew G. | President, Markel Ventures | Other | 9 | $1,735.89 | $14,998 | 1,973 | Jun 13, 2025 |
| Harris Greta J | — | Sale | 90 | $1,861.44 | $167,530 | 632 | May 23, 2025 |
| Cunningham Lawrence A | — | Award / Grant | 88 | — | — | 831 | May 22, 2025 |
| Harris Greta J | — | Award / Grant | 88 | — | — | 722 | May 21, 2025 |
| Besca Mark | — | Award / Grant | 88 | — | — | 1,052 | May 21, 2025 |
| Housel Morgan E. | — | Award / Grant | 88 | — | — | 811 | May 21, 2025 |
| Leopold Diane | — | Award / Grant | 88 | — | — | 2,027 | May 21, 2025 |
| Morrison Harold Lawrence Jr. | — | Award / Grant | 88 | — | — | 973 | May 21, 2025 |
| OREILLY MICHAEL | — | Award / Grant | 88 | — | — | 3,675 | May 21, 2025 |
| Puckett A. Lynne | — | Award / Grant | 88 | — | — | 735 | May 21, 2025 |
| MICHAEL JONATHAN E | — | Award / Grant | 88 | — | — | 114 | May 21, 2025 |
| MARKEL STEVEN A | — | Gift | 300 | — | — | 62,368 | May 19, 2025 |
| Grandis Meade P. | CAO and Controller | Sale | 400 | $1,911.65 | $764,660 | 3,920 | May 19, 2025 |
| Heaton Michael R | EVP & Chief Operating Officer | Other | 88 | $1,710.30 | $149,993 | 4,926 | May 15, 2025 |
| Wilson Simon | CEO, Markel Insurance | Other | 0 | $1,710.30 | $633 | 1,845 | May 15, 2025 |
| Crowley Andrew G. | President, Markel Ventures | Other | 3 | $1,710.30 | $4,994 | 1,964 | May 15, 2025 |
| Grandis Meade P. | CAO and Controller | Sale | 400 | $1,877.44 | $750,976 | 4,320 | May 5, 2025 |
| Wilson Simon | CEO, Markel Insurance | Other | 0 | $1,602.95 | $641 | 1,844 | Apr 15, 2025 |
| MICHAEL JONATHAN E | — | Other | 11 | $1,602.95 | $18,338 | 26 | Apr 15, 2025 |
| Crowley Andrew G. | President, Markel Ventures | Other | 9 | $1,602.95 | $13,753 | 1,961 | Mar 31, 2025 |
| Costanzo Brian J. | Chief Financial Officer | Other | 2 | $1,459.76 | $3,007 | 972 | Mar 31, 2025 |
| MICHAEL JONATHAN E | — | Award / Grant | 15 | — | — | 15 | Mar 15, 2025 |
| MARKEL STEVEN A | — | Sale | 25 | $1,862.62 | $46,566 | 63,371 | Feb 25, 2025 |
| MARKEL STEVEN A | — | Sale | 7 | $1,864.76 | $13,053 | 63,722 | Feb 24, 2025 |
| MARKEL ANTHONY F | — | Gift | 840 | — | — | 15,000 | Feb 24, 2025 |
| MARKEL STEVEN A | — | Sale | 65 | $1,851.55 | $120,351 | 65,548 | Feb 21, 2025 |
| Grandis Meade P. | CAO and Controller | Award / Grant | 51 | — | — | 224 | Feb 18, 2025 |
| Noble Jeremy Andrew | President, Insurance | Award / Grant | 1,015 | — | — | 4,888 | Feb 18, 2025 |
| Heaton Michael R | EVP & Chief Operating Officer | Award / Grant | 1,015 | — | — | 4,838 | Feb 18, 2025 |