| Graham DonaldDirector, 10% owner · 243 transactions | — | 906.1K†as of Dec 2019 | — | 1.8K | 323.5K |
| Berkshire Hathaway Inc +2 co-filersFormer 10% Owner · 2 transactions | — | 109.1Kas of Jun 2014 | — | — | — |
| O'Shaughnessy Laura10% owner · 15 transactions | — | 48.3K† | 100.0K | — | — |
| O'Shaughnessy Timothy JPresident and CEO, Director · 33 transactions | — | 42.7K† | 107.8K | 2.1K | — |
| Rosen Andrew StephenExecutive Vice President · 61 transactions | — | 40.8K†as of Jan 2025 | 81.5K | 1.7K | 48.6K |
| Weymouth KatharineDirector · 41 transactions | — | 37.6K† | 54.8K | — | 29.1K |
| Maas, JacobExecutive VP · 16 transactions | — | 6.7K | 9.3K | 210 | — |
| Jones Boisfeuillet JRVice Chairman · 3 transactions | — | 6.6K†as of Jan 2011 | 900 | — | — |
| Gayner Thomas SinnicksonDirector · 6 transactions | — | 5.9K†as of Sep 2024 | — | 600 | — |
| Davis Christopher CDirector · 16 transactions | — | 5.6K | 591 | — | — |
| Rosberg Gerald MSr. VP - Planning and Dev. · 13 transactions | — | 5.5Kas of Jan 2015 | 5.9K | — | 1.0K |
| Daniels Diana MVP, Gen. Counsel & Secretary · 4 transactions | — | 4.4Kas of Aug 2006 | 600 | — | 600 |
| Maddrey Nicole MarieSr. VP-GC & Secretary · 5 transactions | — | 4.2Kas of Jan 2025 | 2.6K | — | — |
| Diller BarryDirector · 1 transaction | — | 4.0Kas of Nov 2011 | — | 3.0K | — |
| Cooney Wallace R.Chief Financial Officer · 19 transactions | — | 3.5Kas of Jan 2025 | 5.5K | — | 2.1K |
| Jones HalSr. VP-Finance and CFO · 13 transactions | — | 3.0Kas of Jan 2015 | 4.7K | — | 2.0K |
| Dillon VeronicaSr. VP, GC & Secretary · 7 transactions | — | 2.4Kas of Dec 2014 | 3.0K | — | 1.2K |
| Morse John B JrVice President, Finance · 5 transactions | — | 2.1Kas of Nov 2007 | 200 | — | — |
| McDaniel AnnSenior Vice President · 22 transactions | — | 2.0Kas of Mar 2015 | 6.7K | — | 3.2K |
| Demeter Denise MVP and Chief HR Officer · 2 transactions | — | 1.6Kas of Jan 2019 | 800 | — | — |
| Stonesifer Sandra M.VP, Chief HR Officer · 4 transactions | — | 1.5Kas of Jan 2025 | 926 | 20 | — |
| Wagoner G Richard JrDirector · 24 transactions | — | 1.5K | 533 | 1.0K | — |
| Bollinger Lee CDirector · 3 transactions | — | 1.1Kas of Aug 2020 | — | 1.1K | — |
| Goldberg David BruceDirector · 3 transactions | — | 1.0Kas of May 2014 | — | 1.0K | — |
| Mulcahy Anne MDirector · 19 transactions | — | 737 | 533 | 339 | — |
| Snyman Marcel A.VP-Chief Accounting Officer · 12 transactions | — | 442as of Jan 2025 | 885 | — | 659 |
| Conley Danielle Y.Director · 15 transactions | — | 442 | 442 | — | — |
| Maas JacobSr. VP - Planning and Dev. · 1 transaction | — | 426as of Jan 2017 | 400 | — | — |
| Thompson Larry D.Director · 1 transaction | — | 76as of Dec 2011 | — | 76 | — |
| Markell Jack A.Director · 8 transactions | — | 41 | 41 | 170 | — |
| Allen TonyDirector · 8 transactions | — | 8as of Jul 2025 | 90 | — | 82 |
| Olson Ronald LDirector · 1 transaction | — | 0as of Dec 2010 | — | — | 300 |