LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
MKLCIK 0001096343

MARKEL GROUP INC.

47 transactions by 15 insiders, from September 30, 2025 to September 30, 2026.

Transactions
4715 insiders
Bought · P
$371Kopen market
Sold · S
$348Kopen market
Net
+$23Knet buying

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Brian J. CostanzoCFO9———
Andrew G. CrowleyEVP7———
Diane LeopoldDir4—$269K—
Greta J. HarrisDir4——$140K
A. Lynne PuckettDir3—$102K—
Simon WilsonCEO3——$208K
Mark BescaDir2———
Morgan E. HouselDir2———
Lawrence A. CunninghamDir2———
Jonathan E. MichaelDir2———
Michael OreillyDir2———
Richard Randolph GrinnanGC2———
Harold Lawrence Morrison Jr.Dir2———
Thomas Sinnickson GaynerCEO2———
Meade P. GrandisCAO1———

All transactions

47 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Brian J. CostanzoCFOSep 30J2$1,455.58$3K
Andrew G. CrowleyEVPJul 15J7$1,730.49$13K
Andrew G. CrowleyEVPJun 30J3$1,617.19$5K
Brian J. CostanzoCFOJun 30J2$1,617.19$3K
A. Lynne PuckettDirJun 15J66$1,668.65$110K
Harold Lawrence Morrison Jr.DirJun 15J33$1,668.65$55K
Michael OreillyDirJun 15J90$1,668.65$150K
Jonathan E. MichaelDirJun 15J66$1,668.65$110K
Diane LeopoldDirJun 15J66$1,668.65$110K
Morgan E. HouselDirJun 15J66$1,668.65$110K
Lawrence A. CunninghamDirJun 15J33$1,668.65$55K
Mark BescaDirJun 15J81$1,668.65$135K
Greta J. HarrisDirMay 22S27$1,848.83$50K
Greta J. HarrisDirMay 22S14$1,847.36$26K
Greta J. HarrisDirMay 22S35$1,846.12$65K
A. Lynne PuckettDirMay 20A89$0.00—
Harold Lawrence Morrison Jr.DirMay 20A89$0.00—
Michael OreillyDirMay 20A89$0.00—
Jonathan E. MichaelDirMay 20A89$0.00—
Diane LeopoldDirMay 20A89$0.00—
Morgan E. HouselDirMay 20A89$0.00—
Greta J. HarrisDirMay 20A89$0.00—
Lawrence A. CunninghamDirMay 20A89$0.00—
Mark BescaDirMay 20A89$0.00—
Richard Randolph GrinnanGCMay 15F116$1,844.00$215K
Thomas Sinnickson GaynerCEOMay 15F482$1,844.00$888K
Andrew G. CrowleyEVPMay 15J60$1,659.60$100K
Andrew G. CrowleyEVPMay 15F75$1,844.00$138K
Brian J. CostanzoCFOMay 15J30$1,659.60$50K
Brian J. CostanzoCFOMay 15F13$1,844.00$24K
Diane LeopoldDirMay 7P50$1,789.19$89K
Diane LeopoldDirMay 6P100$1,792.61$179K
A. Lynne PuckettDirMay 1P57$1,795.53$102K
Andrew G. CrowleyEVPMar 31J9$1,626.96$15K
Brian J. CostanzoCFOMar 31J2$1,626.96$3K
Simon WilsonCEOFeb 26S100$2,079.48$208K
Simon WilsonCEOFeb 24A868$0.00—
Richard Randolph GrinnanGCFeb 24A801$0.00—
Meade P. GrandisCAOFeb 24A70$0.00—
Thomas Sinnickson GaynerCEOFeb 24A4,484$0.00—
Andrew G. CrowleyEVPFeb 24A830$0.00—
Brian J. CostanzoCFOFeb 24A655$0.00—
Simon WilsonCEOFeb 17F47$2,084.46$98K
Brian J. CostanzoCFODec 31J2$1,602.62$4K
Andrew G. CrowleyPresDec 2F65$2,060.83$133K
Brian J. CostanzoCFODec 2F22$2,060.83$45K
Brian J. CostanzoCFOSep 30J2$1,624.66$3K