| Blackstone Group L.P. +5 co-filers10% owner · 1 transaction | — | 7.46M†as of May 2013 | — | 1.96M | — |
| Berkley W R Corp10% owner · 178 transactions | — | 3.84Mas of Mar 2008 | — | 1.84M | — |
| Doucette Frederick E III +2 co-filers10% owner · 21 transactions | — | 2.20Mas of Oct 2008 | — | 303.1K | 397.8K |
| Nash Michael B.Director · 20 transactions | — | 558.3K | 283.4K | 274.8K | — |
| Johnson Timothy StevenChief Executive Officer, Director · 4 transactions | — | 527.9K | 154.6K | 57.0K | — |
| Klopp John RCEO, Director · 14 transactions | — | 445.7Kas of Oct 2009 | 287.1K | 10.0K | — |
| Pollack Jonathan LeeDirector · 12 transactions | — | 423.1K†as of Dec 2023 | 389.9K | 13.5K | — |
| Plavin Stephen DCEO, Director · 124 transactions | — | 407.3K†as of Feb 2021 | 637.8K | 44.2K | 80.0K |
| Schreiber JohnDirector · 5 transactions | — | 313.3K†as of Nov 2015 | 54.8K | 129.3K | — |
| Keenan Katharine ACEO & President, Director · 52 transactions | — | 230.0K | 234.3K | 16.0K | 93.6K |
| Nassau Henry NDirector · 138 transactions | — | 205.5K | 285.5K | 66.0K | 3.8K |
| Zell SamuelDirector · 122 transactions | — | 171.2Kas of Dec 2012 | 145.0K | 100.0K | — |
| Sagalyn Lynne BDirector · 136 transactions | — | 162.7K | 406.3K | 500 | — |
| Dobrowski Thomas EDirector · 124 transactions | — | 129.4Kas of Jan 2025 | 322.8K | — | — |
| Edelman Martin LDirector · 116 transactions | — | 105.9Kas of Jan 2023 | 330.7K | — | — |
| Armer Douglas N.Executive Vice President · 86 transactions | — | 104.7Kas of Jun 2022 | 163.5K | — | 60.4K |
| Cotton Leonard WDirector · 84 transactions | — | 96.9K | 85.5K | 10.0K | — |
| Hyman Edward SDirector · 75 transactions | — | 95.4Kas of Sep 2012 | 97.3K | 87.2K | — |
| Marone Anthony F. JRChief Financial Officer · 127 transactions | — | 75.5K | 126.6K | — | 50.3K |
| Pena Fernando AustinPresident, Director · 4 transactions | — | 74.6K | 36.8K | — | 7.2K |
| Hatkoff Craig MDirector · 212 transactions | — | 68.1Kas of Mar 2010 | 59.4K | — | 329.4K |
| Edlelman Martin LDirector · 1 transaction | — | 42.4Kas of Mar 2009 | 8.0K | — | — |
| Lynch NnennaDirector · 24 transactions | — | 41.8K | 38.1K | — | — |
| Ruffing Thomas CManaging Director · 77 transactions | — | 28.9Kas of Dec 2020 | 140.0K | — | 18.5K |
| Perez-Alvarado GildaDirector · 5 transactions | — | 26.5K | 26.5K | — | — |
| Jervis Geoffrey GSee Remarks · 13 transactions | — | 25.4Kas of May 2013 | 274.9K | 9.8K | — |
| Urbaszek MarcinChief Financial Officer · 6 transactions | — | 24.8K | 15.3K | — | 3.4K |
| Quinlan Paul DChief Financial Officer · 14 transactions | — | 22.4Kas of Jan 2016 | 25.8K | — | 3.5K |
| Rothschild Randall S.Secretary & Managing Director · 14 transactions | — | 15.5Kas of Dec 2015 | 16.3K | 1.6K | 2.1K |
| Hsu Chen YiDirector · 2 transactions | — | 10.8K | 10.8K | — | — |
| Polan Joshua ADirector · 7 transactions | — | 0as of Jun 2014 | 2.9K | — | — |