Markel Group Inc. (MKL) Insider Trading

Last 12 months

Insiders bought $371k and sold $3.68M on the open market.

86% of the selling was scheduled in advance under 10b5-1 plans. Director Greta J Harris sold $140k on May 22, 11% of their stake, outside a plan.

Net open-market

−$3.31M

2 buys · 5 sales

Under a 10b5-1 plan

86%

of the value sold

Insiders who bought / sold

2 / 3

executives and directors

Last open-market buy

May 2026

May 7, 2026

Get an email when MKL's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
May 22	Greta J Harris Director	SoldNo plan 3 parts	76	$1,847.31 average	$140k	11%	Form 4
May 6 – 7	Diane Leopold Director	Bought 2 parts	150	$1,791.47 average	$269k	5.8%	Form 4
May 1	A. Lynne Puckett Director	Bought	57	$1,795.53	$102k	3.2%	Form 4
Feb 26	Simon Wilson EVP and CEO, Markel Insurance	SoldNo plan	100	$2,079.48	$208k	4.0%	Form 4
Dec 11, 2025	Steven A Markel Director	Sold10b5-1 plan 16 parts	1,330	$2,119.12 average	$2.82M	1.7%	Form 4
Nov 26, 2025 – Nov 28, 2025	Steven A Markel Director	Sold10b5-1 plan 2 parts	170	$2,100.00 average	$357k	0.2%	Form 4
Nov 25, 2025	Simon Wilson CEO, Markel Insurance	SoldNo plan	75	$2,072.94	$155k	4.1%	Form 4
Aug 25, 2025	Meade P. Grandis CAO and Controller	SoldNo plan	75	$1,983.78	$149k	1.1%	Form 4
May 23, 2025	Greta J Harris Director	SoldNo plan	90	$1,861.44	$168k	12%	Form 4
May 22, 2025	Lawrence A Cunningham Director	Bought 2 parts	25	$1,851.32 average	$46k	3.0%	Form 4
May 19, 2025	Meade P. Grandis CAO and Controller	SoldNo plan	400	$1,911.65	$765k	5.4%	Form 4
May 5, 2025	Meade P. Grandis CAO and Controller	SoldNo plan	400	$1,877.44	$751k	5.2%	Form 4
Feb 25, 2025 – Feb 26, 2025	Steven A Markel Director	Sold10b5-1 plan 26 parts	1,054	$1,872.81 average	$1.97M	1.3%	Form 4
Feb 24, 2025	Steven A Markel Director	Sold10b5-1 plan 12 parts	1,146	$1,858.49 average	$2.13M	1.4%	Form 4
Feb 21, 2025	Steven A Markel Director	Sold10b5-1 plan 13 parts	800	$1,856.80 average	$1.49M	1.0%	Form 4
Feb 7, 2025	Thomas Sinnickson Gayner Chief Executive Officer	Bought	100	$2,008.01	$201k	0.2%	Form 4
Nov 1, 2024	Thomas Sinnickson Gayner Chief Executive Officer	Bought	100	$1,549.72	$155k	0.2%	Form 4

May 22No plan
Greta J Harris
Director · sold 76 at avg $1,847.31
$140k
11% of stake
May 6 – 7
Diane Leopold
Director · bought 150 at avg $1,791.47
$269k
5.8% of stake
May 1
A. Lynne Puckett
Director · bought 57 at $1,795.53
$102k
3.2% of stake
Feb 26No plan
Simon Wilson
EVP and CEO, Markel Insurance · sold 100 at $2,079.48
$208k
4.0% of stake
Dec 11, 202510b5-1 plan
Steven A Markel
Director · sold 1,330 at avg $2,119.12
$2.82M
1.7% of stake
Nov 26, 2025 – Nov 28, 202510b5-1 plan
Steven A Markel
Director · sold 170 at avg $2,100.00
$357k
0.2% of stake
Nov 25, 2025No plan
Simon Wilson
CEO, Markel Insurance · sold 75 at $2,072.94
$155k
4.1% of stake
Aug 25, 2025No plan
Meade P. Grandis
CAO and Controller · sold 75 at $1,983.78
$149k
1.1% of stake
May 23, 2025No plan
Greta J Harris
Director · sold 90 at $1,861.44
$168k
12% of stake
May 22, 2025
Lawrence A Cunningham
Director · bought 25 at avg $1,851.32
$46k
3.0% of stake
May 19, 2025No plan
Meade P. Grandis
CAO and Controller · sold 400 at $1,911.65
$765k
5.4% of stake
May 5, 2025No plan
Meade P. Grandis
CAO and Controller · sold 400 at $1,877.44
$751k
5.2% of stake
Feb 25, 2025 – Feb 26, 202510b5-1 plan
Steven A Markel
Director · sold 1,054 at avg $1,872.81
$1.97M
1.3% of stake
Feb 24, 202510b5-1 plan
Steven A Markel
Director · sold 1,146 at avg $1,858.49
$2.13M
1.4% of stake
Feb 21, 202510b5-1 plan
Steven A Markel
Director · sold 800 at avg $1,856.80
$1.49M
1.0% of stake
Feb 7, 2025
Thomas Sinnickson Gayner
Chief Executive Officer · bought 100 at $2,008.01
$201k
0.2% of stake
Nov 1, 2024
Thomas Sinnickson Gayner
Chief Executive Officer · bought 100 at $1,549.72
$155k
0.2% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch MKL, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in MKL's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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