Insider Trades35 trades
| Date↓ | Side | Ticker↕ | Insider↕ | Role↕ | Shares↕ | Price↕ | Mkt Cap↕ | 52W High↕ | 52W Low↕ | Value↕ | % Chg↕ | Rule↕ | AI View↕ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 15, 2026 | Sell | MKL | Brian J. Costanzo | Chief Financial Officer | 13.08 | $1844.00 | $24.7B | -10.65% | +14.72% | $24.1K | -0.81% | — | — |
| May 15, 2026 | Sell | MKL | Andrew G. Crowley | EVP & Pres., Markel Ventures | 74.866 | $1844.00 | $24.7B | -10.65% | +14.72% | $138.1K | -2.72% | — | — |
| May 15, 2026 | Sell | MKL | Richard Randolph Grinnan | SVP, Chief Legal Officer & Sec | 116.358 | $1844.00 | $24.7B | -10.65% | +14.72% | $214.6K | -2.73% | — | — |
| May 15, 2026 | Sell | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 481.668 | $1844.00 | $24.7B | -10.65% | +14.72% | $888.2K | -0.85% | — | — |
| Feb 26, 2026 | Sell | MKL | Simon Wilson | EVP and CEO, Markel Insurance | 100 | $2079.48 | $24.7B | -10.65% | +14.72% | $207.9K | -4.01% | — | — |
| Feb 17, 2026 | Sell | MKL | Simon Wilson | CEO, Markel Insurance | 47 | $2084.46 | $24.7B | -10.65% | +14.72% | $98.0K | -2.80% | — | — |
| Dec 2, 2025 | Sell | MKL | Brian J. Costanzo | Chief Financial Officer | 21.723 | $2060.83 | $24.7B | -10.65% | +14.72% | $44.8K | -2.23% | — | — |
| Dec 2, 2025 | Sell | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 36.613 | $2060.83 | $24.7B | -10.65% | +14.72% | $75.5K | -0.07% | — | — |
| Dec 2, 2025 | Sell | MKL | Andrew G. Crowley | President, Markel Ventures | 64.771 | $2060.83 | $24.7B | -10.65% | +14.72% | $133.5K | -3.27% | — | — |
| Dec 2, 2025 | Sell | MKL | Simon Wilson | CEO, Markel Insurance | 94 | $2060.83 | $24.7B | -10.65% | +14.72% | $193.7K | -5.31% | — | — |
| Dec 2, 2025 | Sell | MKL | Richard Randolph Grinnan | SVP, Chief Legal Officer & Sec | 138.006 | $2060.83 | $24.7B | -10.65% | +14.72% | $284.4K | -3.83% | — | — |
| Dec 2, 2025 | Sell | MKL | Michael R Heaton | EVP & Chief Operating Officer | 217.382 | $2060.83 | $24.7B | -10.65% | +14.72% | $448.0K | -4.41% | — | — |
| Nov 25, 2025 | Sell | MKL | Simon Wilson | CEO, Markel Insurance | 75 | $2072.94 | $24.7B | -10.65% | +14.72% | $155.5K | -4.07% | — | — |
| Aug 25, 2025 | Sell | MKL | Meade P. Grandis | CAO and Controller | 75 | $1983.78 | $24.7B | -10.65% | +14.72% | $148.8K | -21.43% | — | — |
| May 19, 2025 | Sell | MKL | Meade P. Grandis | CAO and Controller | 400 | $1911.65 | $24.7B | -10.65% | +14.72% | $764.7K | -9.26% | — | — |
| May 5, 2025 | Sell | MKL | Meade P. Grandis | CAO and Controller | 400 | $1877.44 | $24.7B | -10.65% | +14.72% | $751.0K | -8.48% | — | — |
| Feb 7, 2025 | Buy | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 100 | $2008.01 | $24.7B | -10.65% | +14.72% | $200.8K | +0.20% | — | — |
| Dec 5, 2024 | Sell | MKL | Jeremy Andrew Noble | President, Insurance | 13 | $1759.04 | $24.7B | -10.65% | +14.72% | $22.9K | -0.33% | — | — |
| Dec 5, 2024 | Sell | MKL | Brian J. Costanzo | Chief Financial Officer | 21 | $1759.04 | $24.7B | -10.65% | +14.72% | $36.9K | -3.45% | — | — |
| Dec 5, 2024 | Sell | MKL | Andrew G. Crowley | President, Markel Ventures | 31 | $1759.04 | $24.7B | -10.65% | +14.72% | $54.5K | -2.15% | — | — |
| Dec 5, 2024 | Sell | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 45 | $1759.04 | $24.7B | -10.65% | +14.72% | $79.2K | -0.09% | — | — |
| Dec 5, 2024 | Sell | MKL | Richard Randolph Grinnan | SVP, Chief Legal Officer & Sec | 133 | $1759.04 | $24.7B | -10.65% | +14.72% | $234.0K | -4.24% | — | — |
| Dec 5, 2024 | Sell | MKL | Michael R Heaton | EVP & Chief Operating Officer | 155 | $1759.04 | $24.7B | -10.65% | +14.72% | $272.7K | -3.93% | — | — |
| Nov 1, 2024 | Buy | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 100 | $1549.72 | $24.7B | -10.65% | +14.72% | $155.0K | +0.20% | — | — |
| Feb 16, 2024 | Sell | MKL | Andrew G. Crowley | President, Markel Ventures | 17 | $1461.50 | $24.7B | -10.65% | +14.72% | $24.8K | -1.21% | — | — |
| Feb 16, 2024 | Sell | MKL | Michael R Heaton | Executive Vice President | 31 | $1461.50 | $24.7B | -10.65% | +14.72% | $45.3K | -0.79% | — | — |
| Feb 2, 2024 | Buy | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 100 | $1414.74 | $24.7B | -10.65% | +14.72% | $141.5K | +0.22% | — | — |
| Dec 5, 2023 | Sell | MKL | Jeremy Andrew Noble | President, Insurance | 13 | $1401.29 | $24.7B | -10.65% | +14.72% | $18.2K | -0.47% | — | — |
| Dec 5, 2023 | Sell | MKL | Brian J. Costanzo | SVP, Finance, CAO & Controller | 15 | $1401.29 | $24.7B | -10.65% | +14.72% | $21.0K | -3.62% | — | — |
| Dec 5, 2023 | Sell | MKL | Andrew G. Crowley | President, Markel Ventures | 28 | $1401.29 | $24.7B | -10.65% | +14.72% | $39.2K | -2.96% | — | — |
| Dec 5, 2023 | Sell | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 46 | $1401.29 | $24.7B | -10.65% | +14.72% | $64.5K | -0.10% | — | — |
| Dec 5, 2023 | Sell | MKL | Richard Randolph Grinnan | SVP, Chief Legal Officer & Sec | 123 | $1401.29 | $24.7B | -10.65% | +14.72% | $172.4K | -4.72% | — | — |
| Dec 5, 2023 | Sell | MKL | Michael R Heaton | Executive Vice President | 132 | $1401.29 | $24.7B | -10.65% | +14.72% | $185.0K | -4.49% | — | — |
| Nov 3, 2023 | Buy | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 100 | $1311.92 | $24.7B | -10.65% | +14.72% | $131.2K | +0.22% | — | — |
| Aug 4, 2023 | Buy | MKL | Thomas Sinnickson Gayner | Chief Executive Officer | 100 | $1479.47 | $24.7B | -10.65% | +14.72% | $147.9K | +0.22% | — | — |