MKL

Markel Group INC.

Insider trading activity for Markel Group INC., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

+$230.7K

net buying

Bought(3 · 2 insiders): $371.1K
Sold(3 · 1 insiders): $140.4K

Past 12 months

-$3.3M

net selling

Bought(3 · 2 insiders): $371.1K
Sold(23 · 3 insiders): $3.7M

Transaction history

The 100 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Jul 15	Crowley Andrew G.	EVP & Pres., Markel…	JOTHER	7.48	$1,730.49	$12.9K	+0.3%	Open the original filing on SEC.gov
Jun 30	Crowley Andrew G.	EVP & Pres., Markel…	JOTHER	2.82	$1,617.19	$4.6K	+0.1%	Open the original filing on SEC.gov
Jun 30	Costanzo Brian J.	Chief Financial Officer	JOTHER	2.16	$1,617.19	$3.5K	+0.1%	Open the original filing on SEC.gov
Jun 15	Puckett A. Lynne	Director	JOTHER	65.92	$1,668.65	$110K	+14.9%	Open the original filing on SEC.gov
Jun 15	Morrison Harold…	Director	JOTHER	32.96	$1,668.65	$55K	+3.0%	Open the original filing on SEC.gov
Jun 15	Oreilly Michael	Director	JOTHER	89.89	$1,668.65	$150K	+2.3%	Open the original filing on SEC.gov
Jun 15	Michael Jonathan E	Director	JOTHER	65.92	$1,668.65	$110K	+24.7%	Open the original filing on SEC.gov
Jun 15	Leopold Diane	Director	JOTHER	65.92	$1,668.65	$110K	+2.9%	Open the original filing on SEC.gov
Jun 15	Housel Morgan E.	Director	JOTHER	65.92	$1,668.65	$110K	+6.9%	Open the original filing on SEC.gov
Jun 15	Cunningham Lawrence A	Director	JOTHER	32.96	$1,668.65	$55K	+3.3%	Open the original filing on SEC.gov
Jun 15	Besca Mark	Director	JOTHER	80.9	$1,668.65	$135K	+7.1%	Open the original filing on SEC.gov
May 22	Harris Greta J	Director	SSELL	27	$1,848.83	$49.9K	-4.0%	Open the original filing on SEC.gov
May 22	Harris Greta J	Director	SSELL	14	$1,847.36	$25.9K	-2.0%	Open the original filing on SEC.gov
May 22	Harris Greta J	Director	SSELL	35	$1,846.12	$64.6K	-4.9%	Open the original filing on SEC.gov
May 20	Puckett A. Lynne	Director	AGRANT	89	—	—	+25.3%	Open the original filing on SEC.gov
May 20	Morrison Harold…	Director	AGRANT	89	—	—	+8.9%	Open the original filing on SEC.gov
May 20	Oreilly Michael	Director	AGRANT	89	—	—	+2.4%	Open the original filing on SEC.gov
May 20	Michael Jonathan E	Director	AGRANT	89	—	—	+50.0%	Open the original filing on SEC.gov
May 20	Leopold Diane	Director	AGRANT	89	—	—	+4.1%	Open the original filing on SEC.gov
May 20	Housel Morgan E.	Director	AGRANT	89	—	—	+10.2%	Open the original filing on SEC.gov
May 20	Harris Greta J	Director	AGRANT	89	—	—	+14.1%	Open the original filing on SEC.gov
May 20	Cunningham Lawrence A	Director	AGRANT	89	—	—	+9.7%	Open the original filing on SEC.gov
May 20	Besca Mark	Director	AGRANT	89	—	—	+8.5%	Open the original filing on SEC.gov
May 15	Grinnan Richard Randolph	SVP, Chief Legal…	FTAX	116.36	$1,844.00	$214.6K	-2.7%	Open the original filing on SEC.gov
May 15	Gayner Thomas Sinnickson	Chief Executive Officer	FTAX	481.67	$1,844.00	$888.2K	-0.9%	Open the original filing on SEC.gov
May 15	Crowley Andrew G.	EVP & Pres., Markel…	JOTHER	60.26	$1,659.60	$100K	+2.3%	Open the original filing on SEC.gov
May 15	Crowley Andrew G.	EVP & Pres., Markel…	FTAX	74.87	$1,844.00	$138.1K	-2.7%	Open the original filing on SEC.gov
May 15	Costanzo Brian J.	Chief Financial Officer	JOTHER	30.13	$1,659.60	$50K	+1.9%	Open the original filing on SEC.gov
May 15	Costanzo Brian J.	Chief Financial Officer	FTAX	13.08	$1,844.00	$24.1K	-0.8%	Open the original filing on SEC.gov
May 7	Leopold Diane	Director	PBUY	50	$1,789.19	$89.5K	+10.0%	Open the original filing on SEC.gov
May 6	Leopold Diane	Director	PBUY★	100	$1,792.61	$179.3K	+4.8%	Open the original filing on SEC.gov
May 1	Puckett A. Lynne	Director	PBUY★	57	$1,795.53	$102.3K	+4.0%	Open the original filing on SEC.gov
Mar 31	Crowley Andrew G.	EVP & Pres., Markel…	JOTHER	9.22	$1,626.96	$15K	+0.3%	Open the original filing on SEC.gov
Mar 31	Costanzo Brian J.	Chief Financial Officer	JOTHER	1.84	$1,626.96	$3K	+0.1%	Open the original filing on SEC.gov
Feb 26	Wilson Simon	EVP and CEO, Markel…	SSELL	100	$2,079.48	$207.9K	-4.0%	Open the original filing on SEC.gov
Feb 24	Wilson Simon	EVP and CEO, Markel…	AGRANT	868.12	—	—	+53.3%	Open the original filing on SEC.gov
Feb 24	Grinnan Richard Randolph	SVP, Chief Legal…	AGRANT	800.51	—	—	+23.1%	Open the original filing on SEC.gov
Feb 24	Grandis Meade P.	CAO and Controller	AGRANT	69.72	—	—	+31.1%	Open the original filing on SEC.gov
Feb 24	Gayner Thomas Sinnickson	Chief Executive Officer	AGRANT	4,483.62	—	—	+8.6%	Open the original filing on SEC.gov
Feb 24	Crowley Andrew G.	EVP & Pres., Markel…	AGRANT	830.02	—	—	+43.4%	Open the original filing on SEC.gov
Feb 24	Costanzo Brian J.	Chief Financial Officer	AGRANT	654.64	—	—	+68.4%	Open the original filing on SEC.gov
Feb 17	Wilson Simon	CEO, Markel Insurance	FTAX	47	$2,084.46	$98K	-2.8%	Open the original filing on SEC.gov
Dec 31, 2025	Costanzo Brian J.	Chief Financial Officer	JOTHER	2.18	$1,602.62	$3.5K	+0.2%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	120	$2,129.98	$255.6K	-0.2%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	10	$2,128.00	$21.3K	<0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	190	$2,127.26	$404.2K	-0.3%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	75	$2,126.00	$159.5K	-0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	32	$2,125.00	$68K	<0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	10	$2,123.05	$21.2K	<0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	173	$2,121.69	$367.1K	-0.3%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	51	$2,120.65	$108.2K	<0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	24	$2,118.37	$50.8K	<0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	201	$2,117.37	$425.6K	-0.3%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	100	$2,116.18	$211.6K	-0.2%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	120	$2,114.99	$253.8K	-0.2%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	40	$2,112.03	$84.5K	<0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	70	$2,108.27	$147.6K	-0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	50	$2,103.55	$105.2K	<0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Markel Steven A	Director	SSELL◷	64	$2,100.00	$134.4K	-0.1%	Open the original filing on SEC.gov
Dec 2, 2025	Wilson Simon	CEO, Markel Insurance	FTAX	94	$2,060.83	$193.7K	-5.3%	Open the original filing on SEC.gov
Dec 2, 2025	Heaton Michael R	EVP & Chief Operating…	FTAX	217.38	$2,060.83	$448K	-4.4%	Open the original filing on SEC.gov
Dec 2, 2025	Grinnan Richard Randolph	SVP, Chief Legal…	FTAX	138.01	$2,060.83	$284.4K	-3.8%	Open the original filing on SEC.gov
Dec 2, 2025	Gayner Thomas Sinnickson	Chief Executive Officer	FTAX	36.61	$2,060.83	$75.5K	<0.1%	Open the original filing on SEC.gov
Dec 2, 2025	Crowley Andrew G.	President, Markel…	FTAX	64.77	$2,060.83	$133.5K	-3.3%	Open the original filing on SEC.gov
Dec 2, 2025	Costanzo Brian J.	Chief Financial Officer	FTAX	21.72	$2,060.83	$44.8K	-2.2%	Open the original filing on SEC.gov
Nov 28, 2025	Markel Steven A	Director	SSELL◷	100	$2,100.00	$210K	-0.2%	Open the original filing on SEC.gov
Nov 26, 2025	Markel Steven A	Director	SSELL◷	70	$2,100.00	$147K	-0.1%	Open the original filing on SEC.gov
Nov 25, 2025	Wilson Simon	CEO, Markel Insurance	SSELL	75	$2,072.94	$155.5K	-4.1%	Open the original filing on SEC.gov
Nov 17, 2025	Markel Steven A	Director	GGIFT	500	—	—	-0.8%	Open the original filing on SEC.gov
Sep 30, 2025	Costanzo Brian J.	Chief Financial Officer	JOTHER	1.85	$1,624.66	$3K	+0.2%	Open the original filing on SEC.gov
Aug 25, 2025	Grandis Meade P.	CAO and Controller	SSELL	75	$1,983.78	$148.8K	-21.4%	Open the original filing on SEC.gov
Jul 15, 2025	Crowley Andrew G.	President, Markel…	JOTHER	5.62	$1,779.25	$10K	+0.3%	Open the original filing on SEC.gov
Jun 30, 2025	Costanzo Brian J.	Chief Financial Officer	JOTHER	2.21	$1,580.87	$3.5K	+0.2%	Open the original filing on SEC.gov
Jun 13, 2025	Michael Jonathan E	Director	JOTHER	63.37	$1,735.89	$110K	+55.4%	Open the original filing on SEC.gov
Jun 13, 2025	Morrison Harold…	Director	JOTHER	31.68	$1,735.89	$55K	+3.3%	Open the original filing on SEC.gov
Jun 13, 2025	Puckett A. Lynne	Director	JOTHER	63.37	$1,735.89	$110K	+21.9%	Open the original filing on SEC.gov
Jun 13, 2025	Oreilly Michael	Director	JOTHER	80.65	$1,735.89	$140K	+2.2%	Open the original filing on SEC.gov
Jun 13, 2025	Leopold Diane	Director	JOTHER	63.37	$1,735.89	$110K	+3.1%	Open the original filing on SEC.gov
Jun 13, 2025	Housel Morgan E.	Director	JOTHER	63.37	$1,735.89	$110K	+7.8%	Open the original filing on SEC.gov
Jun 13, 2025	Cunningham Lawrence A	Director	JOTHER	63.37	$1,735.89	$110K	+7.4%	Open the original filing on SEC.gov
Jun 13, 2025	Crowley Andrew G.	President, Markel…	JOTHER	8.64	$1,735.89	$15K	+0.4%	Open the original filing on SEC.gov
May 23, 2025	Harris Greta J	Director	SSELL	90	$1,861.44	$167.5K	-12.5%	Open the original filing on SEC.gov
May 22, 2025	Cunningham Lawrence A	Director	PBUY	10	$1,854.80	$18.5K	+1.2%	Open the original filing on SEC.gov
May 22, 2025	Cunningham Lawrence A	Director	PBUY	15	$1,849.00	$27.7K	+1.8%	Open the original filing on SEC.gov
May 21, 2025	Morrison Harold…	Director	AGRANT	88	—	—	+9.9%	Open the original filing on SEC.gov
May 21, 2025	Oreilly Michael	Director	AGRANT	88	—	—	+2.5%	Open the original filing on SEC.gov
May 21, 2025	Puckett A. Lynne	Director	AGRANT	88	—	—	+13.6%	Open the original filing on SEC.gov
May 21, 2025	Michael Jonathan E	Director	AGRANT	88	—	—	+332.9%	Open the original filing on SEC.gov
May 21, 2025	Leopold Diane	Director	AGRANT	88	—	—	+4.5%	Open the original filing on SEC.gov
May 21, 2025	Housel Morgan E.	Director	AGRANT	88	—	—	+12.2%	Open the original filing on SEC.gov
May 21, 2025	Harris Greta J	Director	AGRANT	88	—	—	+13.9%	Open the original filing on SEC.gov
May 21, 2025	Cunningham Lawrence A	Director	AGRANT	88	—	—	+11.8%	Open the original filing on SEC.gov
May 21, 2025	Besca Mark	Director	AGRANT	88	—	—	+9.1%	Open the original filing on SEC.gov
May 19, 2025	Markel Steven A	Director	GGIFT	300	—	—	-0.5%	Open the original filing on SEC.gov
May 19, 2025	Grandis Meade P.	CAO and Controller	SSELL	400	$1,911.65	$764.7K	-9.3%	Open the original filing on SEC.gov
May 15, 2025	Wilson Simon	CEO, Markel Insurance	JOTHER	0.37	$1,710.30	$640	+<0.1%	Open the original filing on SEC.gov
May 15, 2025	Heaton Michael R	EVP & Chief Operating…	JOTHER	87.7	$1,710.30	$150K	+1.8%	Open the original filing on SEC.gov
May 15, 2025	Crowley Andrew G.	President, Markel…	JOTHER	2.92	$1,710.30	$5K	+0.1%	Open the original filing on SEC.gov
May 5, 2025	Grandis Meade P.	CAO and Controller	SSELL	400	$1,877.44	$751K	-8.5%	Open the original filing on SEC.gov
Apr 15, 2025	Wilson Simon	CEO, Markel Insurance	JOTHER	0.4	$1,602.95	$644	+<0.1%	Open the original filing on SEC.gov

JOTHER$12.9K

Crowley Andrew G. · EVP & Pres.,…Jul 15

7.48 sh @ $1,730.49 · +0.3% own

JOTHER$4.6K

Crowley Andrew G. · EVP & Pres.,…Jun 30

2.82 sh @ $1,617.19 · +0.1% own

JOTHER$3.5K

Costanzo Brian J. · Chief Financial…Jun 30

2.16 sh @ $1,617.19 · +0.1% own

JOTHER$110K

Puckett A. Lynne · DirectorJun 15

65.92 sh @ $1,668.65 · +14.9% own

JOTHER$55K

Morrison Harold… · DirectorJun 15

32.96 sh @ $1,668.65 · +3.0% own

JOTHER$150K

Oreilly Michael · DirectorJun 15

89.89 sh @ $1,668.65 · +2.3% own

JOTHER$110K

Michael Jonathan E · DirectorJun 15

65.92 sh @ $1,668.65 · +24.7% own

JOTHER$110K

Leopold Diane · DirectorJun 15

65.92 sh @ $1,668.65 · +2.9% own

JOTHER$110K

Housel Morgan E. · DirectorJun 15

65.92 sh @ $1,668.65 · +6.9% own

JOTHER$55K

Cunningham Lawrence A · DirectorJun 15

32.96 sh @ $1,668.65 · +3.3% own

JOTHER$135K

Besca Mark · DirectorJun 15

80.9 sh @ $1,668.65 · +7.1% own

SSELL$49.9K

Harris Greta J · DirectorMay 22

27 sh @ $1,848.83 · -4.0% own

SSELL$25.9K

Harris Greta J · DirectorMay 22

14 sh @ $1,847.36 · -2.0% own

SSELL$64.6K

Harris Greta J · DirectorMay 22

35 sh @ $1,846.12 · -4.9% own

AGRANT—

Puckett A. Lynne · DirectorMay 20

89 sh · +25.3% own

AGRANT—

Morrison Harold… · DirectorMay 20

89 sh · +8.9% own

AGRANT—

Oreilly Michael · DirectorMay 20

89 sh · +2.4% own

AGRANT—

Michael Jonathan E · DirectorMay 20

89 sh · +50.0% own

AGRANT—

Leopold Diane · DirectorMay 20

89 sh · +4.1% own

AGRANT—

Housel Morgan E. · DirectorMay 20

89 sh · +10.2% own

AGRANT—

Harris Greta J · DirectorMay 20

89 sh · +14.1% own

AGRANT—

Cunningham Lawrence A · DirectorMay 20

89 sh · +9.7% own

AGRANT—

Besca Mark · DirectorMay 20

89 sh · +8.5% own

FTAX$214.6K

Grinnan Richard Randolph · SVP, Chief Legal…May 15

116.36 sh @ $1,844.00 · -2.7% own

FTAX$888.2K

Gayner Thomas Sinnickson · Chief Executive…May 15

481.67 sh @ $1,844.00 · -0.9% own

JOTHER$100K

Crowley Andrew G. · EVP & Pres.,…May 15

60.26 sh @ $1,659.60 · +2.3% own

FTAX$138.1K

Crowley Andrew G. · EVP & Pres.,…May 15

74.87 sh @ $1,844.00 · -2.7% own

JOTHER$50K

Costanzo Brian J. · Chief Financial…May 15

30.13 sh @ $1,659.60 · +1.9% own

FTAX$24.1K

Costanzo Brian J. · Chief Financial…May 15

13.08 sh @ $1,844.00 · -0.8% own

PBUY$89.5K

Leopold Diane · DirectorMay 7

50 sh @ $1,789.19 · +10.0% own

PBUY★$179.3K

Leopold Diane · DirectorMay 6

100 sh @ $1,792.61 · +4.8% own

PBUY★$102.3K

Puckett A. Lynne · DirectorMay 1

57 sh @ $1,795.53 · +4.0% own

JOTHER$15K

Crowley Andrew G. · EVP & Pres.,…Mar 31

9.22 sh @ $1,626.96 · +0.3% own

JOTHER$3K

Costanzo Brian J. · Chief Financial…Mar 31

1.84 sh @ $1,626.96 · +0.1% own

SSELL$207.9K

Wilson Simon · EVP and CEO,…Feb 26

100 sh @ $2,079.48 · -4.0% own

AGRANT—

Wilson Simon · EVP and CEO,…Feb 24

868.12 sh · +53.3% own

AGRANT—

Grinnan Richard Randolph · SVP, Chief Legal…Feb 24

800.51 sh · +23.1% own

AGRANT—

Grandis Meade P. · CAO and ControllerFeb 24

69.72 sh · +31.1% own

AGRANT—

Gayner Thomas Sinnickson · Chief Executive…Feb 24

4,483.62 sh · +8.6% own

AGRANT—

Crowley Andrew G. · EVP & Pres.,…Feb 24

830.02 sh · +43.4% own

AGRANT—

Costanzo Brian J. · Chief Financial…Feb 24

654.64 sh · +68.4% own

FTAX$98K

Wilson Simon · CEO, Markel…Feb 17

47 sh @ $2,084.46 · -2.8% own

JOTHER$3.5K

Costanzo Brian J. · Chief Financial…Dec 31, 2025

2.18 sh @ $1,602.62 · +0.2% own

SSELL◷$255.6K

Markel Steven A · DirectorDec 11, 2025

120 sh @ $2,129.98 · -0.2% own

SSELL◷$21.3K

Markel Steven A · DirectorDec 11, 2025

10 sh @ $2,128.00 · <0.1% own

SSELL◷$404.2K

Markel Steven A · DirectorDec 11, 2025

190 sh @ $2,127.26 · -0.3% own

SSELL◷$159.5K

Markel Steven A · DirectorDec 11, 2025

75 sh @ $2,126.00 · -0.1% own

SSELL◷$68K

Markel Steven A · DirectorDec 11, 2025

32 sh @ $2,125.00 · <0.1% own

SSELL◷$21.2K

Markel Steven A · DirectorDec 11, 2025

10 sh @ $2,123.05 · <0.1% own

SSELL◷$367.1K

Markel Steven A · DirectorDec 11, 2025

173 sh @ $2,121.69 · -0.3% own

SSELL◷$108.2K

Markel Steven A · DirectorDec 11, 2025

51 sh @ $2,120.65 · <0.1% own

SSELL◷$50.8K

Markel Steven A · DirectorDec 11, 2025

24 sh @ $2,118.37 · <0.1% own

SSELL◷$425.6K

Markel Steven A · DirectorDec 11, 2025

201 sh @ $2,117.37 · -0.3% own

SSELL◷$211.6K

Markel Steven A · DirectorDec 11, 2025

100 sh @ $2,116.18 · -0.2% own

SSELL◷$253.8K

Markel Steven A · DirectorDec 11, 2025

120 sh @ $2,114.99 · -0.2% own

SSELL◷$84.5K

Markel Steven A · DirectorDec 11, 2025

40 sh @ $2,112.03 · <0.1% own

SSELL◷$147.6K

Markel Steven A · DirectorDec 11, 2025

70 sh @ $2,108.27 · -0.1% own

SSELL◷$105.2K

Markel Steven A · DirectorDec 11, 2025

50 sh @ $2,103.55 · <0.1% own

SSELL◷$134.4K

Markel Steven A · DirectorDec 11, 2025

64 sh @ $2,100.00 · -0.1% own

FTAX$193.7K

Wilson Simon · CEO, Markel…Dec 2, 2025

94 sh @ $2,060.83 · -5.3% own

FTAX$448K

Heaton Michael R · EVP & Chief…Dec 2, 2025

217.38 sh @ $2,060.83 · -4.4% own

FTAX$284.4K

Grinnan Richard Randolph · SVP, Chief Legal…Dec 2, 2025

138.01 sh @ $2,060.83 · -3.8% own

FTAX$75.5K

Gayner Thomas Sinnickson · Chief Executive…Dec 2, 2025

36.61 sh @ $2,060.83 · <0.1% own

FTAX$133.5K

Crowley Andrew G. · President, Markel…Dec 2, 2025

64.77 sh @ $2,060.83 · -3.3% own

FTAX$44.8K

Costanzo Brian J. · Chief Financial…Dec 2, 2025

21.72 sh @ $2,060.83 · -2.2% own

SSELL◷$210K

Markel Steven A · DirectorNov 28, 2025

100 sh @ $2,100.00 · -0.2% own

SSELL◷$147K

Markel Steven A · DirectorNov 26, 2025

70 sh @ $2,100.00 · -0.1% own

SSELL$155.5K

Wilson Simon · CEO, Markel…Nov 25, 2025

75 sh @ $2,072.94 · -4.1% own

GGIFT—

Markel Steven A · DirectorNov 17, 2025

500 sh · -0.8% own

JOTHER$3K

Costanzo Brian J. · Chief Financial…Sep 30, 2025

1.85 sh @ $1,624.66 · +0.2% own

SSELL$148.8K

Grandis Meade P. · CAO and ControllerAug 25, 2025

75 sh @ $1,983.78 · -21.4% own

JOTHER$10K

Crowley Andrew G. · President, Markel…Jul 15, 2025

5.62 sh @ $1,779.25 · +0.3% own

JOTHER$3.5K

Costanzo Brian J. · Chief Financial…Jun 30, 2025

2.21 sh @ $1,580.87 · +0.2% own

JOTHER$110K

Michael Jonathan E · DirectorJun 13, 2025

63.37 sh @ $1,735.89 · +55.4% own

JOTHER$55K

Morrison Harold… · DirectorJun 13, 2025

31.68 sh @ $1,735.89 · +3.3% own

JOTHER$110K

Puckett A. Lynne · DirectorJun 13, 2025

63.37 sh @ $1,735.89 · +21.9% own

JOTHER$140K

Oreilly Michael · DirectorJun 13, 2025

80.65 sh @ $1,735.89 · +2.2% own

JOTHER$110K

Leopold Diane · DirectorJun 13, 2025

63.37 sh @ $1,735.89 · +3.1% own

JOTHER$110K

Housel Morgan E. · DirectorJun 13, 2025

63.37 sh @ $1,735.89 · +7.8% own

JOTHER$110K

Cunningham Lawrence A · DirectorJun 13, 2025

63.37 sh @ $1,735.89 · +7.4% own

JOTHER$15K

Crowley Andrew G. · President, Markel…Jun 13, 2025

8.64 sh @ $1,735.89 · +0.4% own

SSELL$167.5K

Harris Greta J · DirectorMay 23, 2025

90 sh @ $1,861.44 · -12.5% own

PBUY$18.5K

Cunningham Lawrence A · DirectorMay 22, 2025

10 sh @ $1,854.80 · +1.2% own

PBUY$27.7K

Cunningham Lawrence A · DirectorMay 22, 2025

15 sh @ $1,849.00 · +1.8% own

AGRANT—

Morrison Harold… · DirectorMay 21, 2025

88 sh · +9.9% own

AGRANT—

Oreilly Michael · DirectorMay 21, 2025

88 sh · +2.5% own

AGRANT—

Puckett A. Lynne · DirectorMay 21, 2025

88 sh · +13.6% own

AGRANT—

Michael Jonathan E · DirectorMay 21, 2025

88 sh · +332.9% own

AGRANT—

Leopold Diane · DirectorMay 21, 2025

88 sh · +4.5% own

AGRANT—

Housel Morgan E. · DirectorMay 21, 2025

88 sh · +12.2% own

AGRANT—

Harris Greta J · DirectorMay 21, 2025

88 sh · +13.9% own

AGRANT—

Cunningham Lawrence A · DirectorMay 21, 2025

88 sh · +11.8% own

AGRANT—

Besca Mark · DirectorMay 21, 2025

88 sh · +9.1% own

GGIFT—

Markel Steven A · DirectorMay 19, 2025

300 sh · -0.5% own

SSELL$764.7K

Grandis Meade P. · CAO and ControllerMay 19, 2025

400 sh @ $1,911.65 · -9.3% own

JOTHER$640

Wilson Simon · CEO, Markel…May 15, 2025

0.37 sh @ $1,710.30 · +<0.1% own

JOTHER$150K

Heaton Michael R · EVP & Chief…May 15, 2025

87.7 sh @ $1,710.30 · +1.8% own

JOTHER$5K

Crowley Andrew G. · President, Markel…May 15, 2025

2.92 sh @ $1,710.30 · +0.1% own

SSELL$751K

Grandis Meade P. · CAO and ControllerMay 5, 2025

400 sh @ $1,877.44 · -8.5% own

JOTHER$644

Wilson Simon · CEO, Markel…Apr 15, 2025

0.4 sh @ $1,602.95 · +<0.1% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

9 of 77 filings we hold were filed after the two-business-day deadline. The furthest past the deadline was 10 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Mar 31, 2025	Apr 16, 2025	Costanzo Brian J.Chief Financial Officer	10days	$3K	Filing ↗
Mar 31, 2025	Apr 16, 2025	Crowley Andrew G.President, Markel Ventures	10days	$21.2K	Filing ↗
Dec 31, 2025	Jan 19	Costanzo Brian J.Chief Financial Officer	9days	$3.5K	Filing ↗
Mar 31	Apr 14	Crowley Andrew G.EVP & Pres., Markel Ventures	8days	$15K	Filing ↗
Jun 30	Jul 15	Costanzo Brian J.Chief Financial Officer	8days	$3.5K	Filing ↗

Costanzo Brian J.Chief Financial Officer

10days

Traded Mar 31, 2025 · filed Apr 16, 2025Filing ↗

Crowley Andrew G.President, Markel Ventures

10days

Traded Mar 31, 2025 · filed Apr 16, 2025Filing ↗

Costanzo Brian J.Chief Financial Officer

9days

Traded Dec 31, 2025 · filed Jan 19Filing ↗

Crowley Andrew G.EVP & Pres., Markel Ventures

8days

Traded Mar 31 · filed Apr 14Filing ↗

Costanzo Brian J.Chief Financial Officer

8days

Traded Jun 30 · filed Jul 15Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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