| Name | Role | Date | Shares | Price | Value |
|---|---|---|---|---|---|
| Greta J. Harris | Director | 2026-05-22 | 27 | $1.85k | $49.92kSell |
| Greta J. Harris | Director | 2026-05-22 | 35 | $1.85k | $64.61kSell |
| Greta J. Harris | Director | 2026-05-22 | 14 | $1.85k | $25.86kSell |
| Richard Randolph Grinnan | SVP Chief Legal Officer Sec | 2026-05-15 | 116 | $1.84k | $213.90kSell |
| Brian J. Costanzo | Chief Financial Officer | 2026-05-15 | 13 | $1.84k | $23.97kSell |
| Brian J. Costanzo | Chief Financial Officer | 2026-05-15 | 30 | $1.66k | $49.79kBuy |
| Andrew G. Crowley | EVP Pres. Markel Ventures | 2026-05-15 | 74 | $1.84k | $136.46kSell |
| Andrew G. Crowley | EVP Pres. Markel Ventures | 2026-05-15 | 60 | $1.66k | $99.58kBuy |
| Thomas Sinnickson Gayner | Chief Executive Officer | 2026-05-15 | 481 | $1.84k | $886.96kSell |
| Diane Leopold | Director | 2026-05-07 | 50 | $1.79k | $89.46kBuy |
| Name | Hold | Shares | Value | Type |
|---|---|---|---|---|
| Blackrock Inc | 5.68% | 710,606 | $1.29B | Institution |
| Vanguard Capital Management LLC | 4.35% | 544,507 | $990.28M | Institution |
| Vanguard Portfolio Management LLC | 4.19% | 524,201 | $953.35M | Institution |
| Principal Financial Group Inc | 3.21% | 401,876 | $730.88M | Institution |
| Davis Selected Advisers | 3.06% | 383,433 | $697.34M | Institution |
| Select Equity Group LP | 3.02% | 377,643 | $686.81M | Institution |
| Morgan Stanley | 2.85% | 357,087 | $649.42M | Institution |
| State Street Corp | 2.45% | 306,990 | $558.31M | Institution |
| Boston Partners | 2.01% | 250,972 | $456.44M | Institution |
| Van Lanschot Kempen Investment Management Nv | 1.81% | 226,148 | $411.29M | Institution |