WallStSmart
MKL

Markel Corporation

NYSE: MKL · FINANCIAL SERVICES · INSURANCE - PROPERTY & CASUALTY

$1,844.76
-0.75% today

Updated 2026-10-28

Market cap
$22.92B
P/E ratio
10.20
P/S ratio
1.38x
EPS (TTM)
$181.44
Dividend yield
—
52W range
$1,704 – $2,208
Volume
0.1M

Markel Corporation (MKL) Insider transactions

Net insider activity
Net buying (5,995 shares)
Buy transactions
60
Sell transactions
39

All transactions

DateInsiderTitleTypeSharesPriceValue
2026-09-30COSTANZO, BRIAN J.Chief Financial OfficerJ2$1,455.58$2911.16
2026-09-11MARKEL, GROUP INC.10% OwnerSale7,836,411——
2026-09-11MARKEL, GROUP INC.10% OwnerBuy7,836,411——
2026-07-15CROWLEY, ANDREW G.EVP & Pres., Markel VenturesBuy7$1,730.49$12113.43
2026-06-30CROWLEY, ANDREW G.EVP & Pres., Markel VenturesBuy3$1,617.19$4851.57
2026-06-30COSTANZO, BRIAN J.Chief Financial OfficerBuy2$1,617.19$3234.38
2026-06-15PUCKETT, A. LYNNEDirectorBuy66$1,668.65$110130.90
2026-06-15OREILLY, MICHAELDirectorBuy90$1,668.65$150178.50
2026-06-15MORRISON, HAROLD LAWRENCE JR.DirectorBuy33$1,668.65$55065.45
2026-06-15MICHAEL, JONATHAN EDirectorBuy66$1,668.65$110130.90
2026-06-15LEOPOLD, DIANEDirectorBuy66$1,668.65$110130.90
2026-06-15HOUSEL, MORGAN E.DirectorBuy66$1,668.65$110130.90
2026-06-15CUNNINGHAM, LAWRENCE ADirectorBuy33$1,668.65$55065.45
2026-06-15BESCA, MARKDirectorBuy81$1,668.65$135160.65
2026-05-22HARRIS, GRETA JDirectorSale35$1,846.12$64614.20
2026-05-22HARRIS, GRETA JDirectorSale27$1,848.83$49918.41
2026-05-22HARRIS, GRETA JDirectorSale14$1,847.36$25863.04
2026-05-20PUCKETT, A. LYNNEDirectorBuy89——
2026-05-20OREILLY, MICHAELDirectorBuy89——
2026-05-20MORRISON, HAROLD LAWRENCE JR.DirectorBuy89——
2026-05-20MICHAEL, JONATHAN EDirectorBuy89——
2026-05-20LEOPOLD, DIANEDirectorBuy89——
2026-05-20HOUSEL, MORGAN E.DirectorBuy89——
2026-05-20HARRIS, GRETA JDirectorBuy89——
2026-05-20CUNNINGHAM, LAWRENCE ADirectorBuy89——
2026-05-20BESCA, MARKDirectorBuy89——
2026-05-15GRINNAN, RICHARD RANDOLPHSVP, Chief Legal Officer & SecSale116$1,844.00$213904.00
2026-05-15GAYNER, THOMAS SINNICKSONDirector, Chief Executive OfficerSale482$1,844.00$888808.00
2026-05-15CROWLEY, ANDREW G.EVP & Pres., Markel VenturesSale75$1,844.00$138300.00
2026-05-15CROWLEY, ANDREW G.EVP & Pres., Markel VenturesBuy60$1,659.60$99576.00
2026-05-15COSTANZO, BRIAN J.Chief Financial OfficerBuy30$1,659.60$49788.00
2026-05-15COSTANZO, BRIAN J.Chief Financial OfficerSale13$1,844.00$23972.00
2026-05-07LEOPOLD, DIANEDirectorBuy50$1,789.19$89459.50
2026-05-06LEOPOLD, DIANEDirectorBuy100$1,792.61$179261.00
2026-05-01PUCKETT, A. LYNNEDirectorBuy57$1,795.53$102345.21
2026-03-31CROWLEY, ANDREW G.EVP & Pres., Markel VenturesBuy9$1,626.96$14642.64
2026-03-31COSTANZO, BRIAN J.Chief Financial OfficerBuy2$1,626.96$3253.92
2026-02-26WILSON, SIMONEVP and CEO, Markel InsuranceSale100$2,079.48$207948.48
2026-02-24WILSON, SIMONEVP and CEO, Markel InsuranceBuy868——
2026-02-24GRINNAN, RICHARD RANDOLPHSVP, Chief Legal Officer & SecBuy801——
2026-02-24GRANDIS, MEADE P.CAO and ControllerBuy70——
2026-02-24GAYNER, THOMAS SINNICKSONDirector, Chief Executive OfficerBuy4,484——
2026-02-24CROWLEY, ANDREW G.EVP & Pres., Markel VenturesBuy830——
2026-02-24COSTANZO, BRIAN J.Chief Financial OfficerBuy655——
2026-02-17WILSON, SIMONCEO, Markel InsuranceSale47$2,084.46$97969.62
2025-12-31COSTANZO, BRIAN J.Chief Financial OfficerBuy2$1,602.62$3205.24
2025-12-11MARKEL, STEVEN ADirectorSale201$2,117.37$425591.37
2025-12-11MARKEL, STEVEN ADirectorSale190$2,127.26$404179.40
2025-12-11MARKEL, STEVEN ADirectorSale173$2,121.69$367052.37
2025-12-11MARKEL, STEVEN ADirectorSale120$2,114.99$253798.80
2025-12-11MARKEL, STEVEN ADirectorSale100$2,116.18$211618.00
2025-12-11MARKEL, STEVEN ADirectorSale75$2,126.00$159450.00
2025-12-11MARKEL, STEVEN ADirectorSale70$2,108.27$147578.90
2025-12-11MARKEL, STEVEN ADirectorSale64$2,100.00$134400.00
2025-12-11MARKEL, STEVEN ADirectorSale51$2,120.65$108153.15
2025-12-11MARKEL, STEVEN ADirectorSale50$2,103.55$105177.50
2025-12-11MARKEL, STEVEN ADirectorSale40$2,112.03$84481.20
2025-12-11MARKEL, STEVEN ADirectorSale32$2,125.00$68000.00
2025-12-11MARKEL, STEVEN ADirectorSale24$2,118.37$50840.88
2025-12-11MARKEL, STEVEN ADirectorSale10$2,123.05$21230.50
2025-12-02WILSON, SIMONCEO, Markel InsuranceSale94$2,060.83$193718.02
2025-12-02HEATON, MICHAEL REVP & Chief Operating OfficerSale217$2,060.83$447200.11
2025-12-02GRINNAN, RICHARD RANDOLPHSVP, Chief Legal Officer & SecSale138$2,060.83$284394.54
2025-12-02GAYNER, THOMAS SINNICKSONDirector, Chief Executive OfficerSale37$2,060.83$76250.71
2025-12-02CROWLEY, ANDREW G.President, Markel VenturesSale65$2,060.83$133953.95
2025-12-02COSTANZO, BRIAN J.Chief Financial OfficerSale22$2,060.83$45338.26
2025-11-28MARKEL, STEVEN ADirectorSale100$2,100.00$210000.00
2025-11-26MARKEL, STEVEN ADirectorSale70$2,100.00$147000.00
2025-11-25WILSON, SIMONCEO, Markel InsuranceSale75$2,072.94$155470.50
2025-11-17MARKEL, STEVEN ADirectorSale500——
2025-09-30COSTANZO, BRIAN J.Chief Financial OfficerBuy2$1,624.66$3249.32
2025-08-25GRANDIS, MEADE P.CAO and ControllerSale75$1,983.78$148783.50
2025-07-15CROWLEY, ANDREW G.President, Markel VenturesBuy6$1,779.25$10675.50
2025-06-30COSTANZO, BRIAN J.Chief Financial OfficerBuy2$1,580.87$3161.74
2025-06-13PUCKETT, A. LYNNEDirectorBuy63$1,735.89$109361.07
2025-06-13OREILLY, MICHAELDirectorBuy81$1,735.89$140607.09
2025-06-13MORRISON, HAROLD LAWRENCE JR.DirectorBuy32$1,735.89$55548.48
2025-06-13MICHAEL, JONATHAN EDirectorBuy63$1,735.89$109361.07
2025-06-13LEOPOLD, DIANEDirectorBuy63$1,735.89$109361.07
2025-06-13HOUSEL, MORGAN E.DirectorBuy63$1,735.89$109361.07
2025-06-13CUNNINGHAM, LAWRENCE ADirectorBuy63$1,735.89$109361.07
2025-06-13CROWLEY, ANDREW G.President, Markel VenturesBuy9$1,735.89$15623.01
2025-05-23HARRIS, GRETA JDirectorSale90$1,861.44$167529.60
2025-05-22CUNNINGHAM, LAWRENCE ADirectorBuy15$1,849.00$27735.00
2025-05-22CUNNINGHAM, LAWRENCE ADirectorBuy10$1,854.80$18548.00
2025-05-21PUCKETT, A. LYNNEDirectorBuy88——
2025-05-21OREILLY, MICHAELDirectorBuy88——
2025-05-21MORRISON, HAROLD LAWRENCE JR.DirectorBuy88——
2025-05-21MICHAEL, JONATHAN EDirectorBuy88——
2025-05-21LEOPOLD, DIANEDirectorBuy88——
2025-05-21HOUSEL, MORGAN E.DirectorBuy88——
2025-05-21HARRIS, GRETA JDirectorBuy88——
2025-05-21CUNNINGHAM, LAWRENCE ADirectorBuy88——
2025-05-21BESCA, MARKDirectorBuy88——
2025-05-19MARKEL, STEVEN ADirectorSale300——
2025-05-19GRANDIS, MEADE P.CAO and ControllerSale400$1,911.65$764660.00
2025-05-15WILSON, SIMONCEO, Markel InsuranceBuy—$1,710.30—
2025-05-15HEATON, MICHAEL REVP & Chief Operating OfficerBuy88$1,710.30$150506.40
2025-05-15CROWLEY, ANDREW G.President, Markel VenturesBuy3$1,710.30$5130.90
2025-05-05GRANDIS, MEADE P.CAO and ControllerSale400$1,877.44$750976.00

Frequently asked questions

Are MKL insiders buying or selling?

Over the transactions on record, MKL insiders have been net buyers, with about $7.78M in stock sold across 39 sales, against 35 open-market purchases.

Does insider selling at MKL mean the stock will fall?

Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.

Which MKL insiders are selling the most?

Recent selling is concentrated in a few names. MARKEL, STEVEN A accounts for the largest share on record, with about $2.90M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.