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Markel Group Inc.

MKL
Exchange
NYSE
Industry
Fire, Marine & Casualty Insurance
SEC CIK
0001096343

No open-market purchases or sales by Markel Group Inc. insiders were filed in the last 90 days; 930 institutions reported holding it in 13F filings for Q2 2026, worth $19.1B in total; superinvestors Giverny Capital and Gardner Russo & Quinn hold it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Markel Group Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Markel Group Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Markel Group Inc.
NameTitleLast reported holdingLast filingFilings, past year
Costanzo Brian J.Chief Financial Officer1,632Jul 16, 20267
Crowley Andrew G.EVP & Pres., Markel Ventures2,749Jul 16, 20265
Michael Jonathan EDirector333Jun 17, 20262
Oreilly MichaelDirector3,935Jun 17, 20262
Morrison Harold Lawrence Jr.Director1,127Jun 17, 20262
Puckett A. LynneDirector507Jun 17, 20263
Leopold DianeDirector2,345Jun 17, 20263
Cunningham Lawrence ADirector1,042Jun 17, 20262
Besca MarkDirector1,222Jun 17, 20262
Housel Morgan E.Director1,029Jun 17, 20262
Harris Greta JDirector645May 27, 20262
Gayner Thomas SinnicksonChief Executive Officer56,260May 19, 20263
Grinnan Richard RandolphSVP, Chief Legal Officer & Sec4,147May 19, 20263
Grandis Meade P.CAO and Controller294Feb 26, 20261
Wilson SimonEVP and CEO, Markel Insurance2,397Feb 26, 20264
Markel Steven ADirector60,368Dec 15, 20253
Heaton Michael REVP & Chief Operating Officer4,709Dec 3, 20251
Markel Anthony FDirector15,000Feb 25, 20250
Noble Jeremy AndrewPresident, Insurance4,888Feb 20, 20250
Connell K BruceDirector2,226Jul 14, 20230
Davies Susan L.CHRO, Markel Insurance848Dec 16, 20220
Cox Robert CPres. & COO, Insur. Operations2,346Dec 7, 20220
Whitt Richard R IIICo-Chief Executive Officer11,360Dec 7, 20220
Kiscaden Bradley JamesPres/Chief Admin Off-Ins Ops8,090Feb 17, 20220
Schreiner Linda VSVP, Strategic Management1,528Dec 9, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
May 27, 2026 (view filing)May 225 daysHarris Greta JDirectorSSale−76$1,847.31−$140.4K−10.5%645 after3 lots
May 8, 2026 (view filing)May 62 daysLeopold DianeDirectorPPurchase+100$1,792.61+$179.3K+4.8%2.19K after
May 8, 2026 (view filing)May 71 dayLeopold DianeDirectorPPurchase+50$1,789.19+$89.5K+10.0%550 after
May 5, 2026 (view filing)May 14 daysPuckett A. LynneDirectorPPurchase+57$1,795.53+$102.3K+4.1%1.46K after
Feb 26, 2026 (view filing)Feb 26Same dayWilson SimonEVP and CEO, Markel InsuranceSSale−100$2,079.48−$207.9K−4.0%2.40K after
Dec 15, 2025 (view filing)Dec 114 daysMarkel Steven ADirectorSSale−1.33K$2,119.12−$2.82M−2.2%60.4K after16 lots10b5-1
Dec 1, 2025 (view filing)Nov 26-285 daysMarkel Steven ADirectorSSale−170$2,100.00−$357.0K−0.3%61.7K after2 lots10b5-1
Nov 25, 2025 (view filing)Nov 25Same dayWilson SimonCEO, Markel InsuranceSSale−75$2,072.94−$155.5K−4.1%1.77K after
Aug 27, 2025 (view filing)Aug 252 daysGrandis Meade P.CAO and ControllerSSale−75$1,983.78−$148.8K−21.4%275 after
May 27, 2025 (view filing)May 234 daysHarris Greta JDirectorSSale−90$1,861.44−$167.5K−12.5%632 after
May 23, 2025 (view filing)May 221 dayCunningham Lawrence ADirectorPPurchase+25$1,851.32+$46.3K+3.0%856.47 after2 lots
May 20, 2025 (view filing)May 191 dayGrandis Meade P.CAO and ControllerSSale−400$1,911.65−$764.7K−9.3%3.92K after
May 7, 2025 (view filing)May 52 daysGrandis Meade P.CAO and ControllerSSale−400$1,877.44−$751.0K−8.5%4.32K after
Feb 26, 2025 (view filing)Feb 242 daysMarkel Steven ADirectorSSale−1.15K$1,858.49−$2.13M−1.8%63.7K after12 lots10b5-1
Feb 26, 2025 (view filing)Feb 25-261 dayMarkel Steven ADirectorSSale−1.05K$1,872.81−$1.97M−1.7%62.7K after26 lots10b5-1
Feb 25, 2025 (view filing)Feb 214 daysMarkel Steven ADirectorSSale−800$1,856.80−$1.49M−1.2%64.9K after13 lots10b5-1
Feb 7, 2025 (view filing)Feb 7Same dayGayner Thomas SinnicksonChief Executive OfficerPPurchase+100$2,008.01+$200.8K+0.2%48.9K after
Nov 5, 2024 (view filing)Nov 14 daysGayner Thomas SinnicksonChief Executive OfficerPPurchase+100$1,549.72+$155.0K+0.2%48.9K after
Aug 5, 2024 (view filing)Aug 2-53 daysCunningham Lawrence ADirectorPPurchase+30$1,525.00+$45.8K+4.2%743.47 after3 lots
May 28, 2024 (view filing)May 244 daysHarris Greta JDirectorSSale−122$1,620.83−$197.7K−16.1%634 after5 lots
May 23, 2024 (view filing)May 212 daysMarkel Steven ADirectorSSale−3.00K$1,638.39−$4.92M−4.3%66.7K after16 lots10b5-1
Feb 6, 2024 (view filing)Feb 24 daysPuckett A. LynneDirectorPPurchase+72$1,409.28+$101.5K+8.1%960 after
Feb 6, 2024 (view filing)Feb 24 daysCunningham Lawrence ADirectorPPurchase+30$1,407.76+$42.2K+5.9%534.31 after3 lots
Feb 5, 2024 (view filing)Feb 23 daysGayner Thomas SinnicksonChief Executive OfficerPPurchase+100$1,414.74+$141.5K+0.2%45.0K after
Nov 13, 2023 (view filing)Nov 85 daysCunningham Lawrence ADirectorPPurchase+21$1,320.81+$27.7K+4.3%504.31 after3 lots
Nov 6, 2023 (view filing)Nov 33 daysGayner Thomas SinnicksonChief Executive OfficerPPurchase+100$1,311.92+$131.2K+0.2%45.0K after
Nov 6, 2023 (view filing)Nov 33 daysPuckett A. LynneDirectorPPurchase+76$1,321.47+$100.4K+6.1%1.32K after
Nov 6, 2023 (view filing)Nov 33 daysBesca MarkDirectorPPurchase+50$1,316.90+$65.8K+6.8%785.1 after
Sep 8, 2023 (view filing)Sep 5-63 daysLateCunningham Lawrence ADirectorPPurchase+20$1,456.25+$29.1K+4.3%483.31 after2 lots
Sep 8, 2023 (view filing)Sep 71 dayMarkel Steven ADirectorSSale−348$1,468.01−$510.9K−0.5%69.7K after12 lots10b5-1
Sep 6, 2023 (view filing)Sep 51 dayMarkel Steven ADirectorSSale−350$1,471.12−$514.9K−0.5%70.0K after22 lots10b5-1
Sep 1, 2023 (view filing)Aug 311 dayMarkel Steven ADirectorSSale−350$1,482.52−$518.9K−0.5%70.4K after10 lots10b5-1
Aug 30, 2023 (view filing)Aug 291 dayCunningham Lawrence ADirectorPPurchase+25$1,460.00+$36.5K+5.7%463.31 after
Aug 30, 2023 (view filing)Aug 291 dayMarkel Steven ADirectorSSale−350$1,471.89−$515.2K−0.5%70.7K after19 lots10b5-1
Aug 22, 2023 (view filing)Aug 184 daysHarris Greta JDirectorSSale−103$1,491.88−$153.7K−13.6%656 after2 lots
Aug 7, 2023 (view filing)Aug 43 daysGayner Thomas SinnicksonChief Executive OfficerPPurchase+100$1,479.47+$147.9K+0.2%44.9K after
Jul 14, 2023 (view filing)Mar 7, 20191,590 daysConnell K BruceDirectorPPurchase+100$968.78+$96.9K+4.7%2.23K afterAmended
May 25, 2023 (view filing)May 241 dayCunningham Lawrence ADirectorPPurchase+50$1,336.25+$66.8K+16.8%347 after
May 5, 2023 (view filing)May 41 dayHousel Morgan E.DirectorPPurchase+19$1,330.70+$25.3K+6.1%330.21 after
May 3, 2023 (view filing)May 21 dayGayner Thomas SinnicksonChief Executive OfficerPPurchase+50$1,359.93+$68.0K+0.1%43.7K after
May 2, 2023 (view filing)Apr 284 daysPuckett A. LynneDirectorPPurchase+75$1,340.66+$100.5K+7.8%1.03K after
Feb 17, 2023 (view filing)Feb 161 dayLeopold DianeDirectorPPurchase+150$1,338.99+$200.8K+10.7%1.55K after2 lots
Feb 17, 2023 (view filing)Feb 17Same dayHarris Greta JDirectorPPurchase+400$1,327.99+$531.2K+168.8%637 after2 lots
Feb 7, 2023 (view filing)Feb 34 daysMarkel Anthony FDirectorSSale−2$1,336.68−$2.67K−0.1%1.88K after
Feb 6, 2023 (view filing)Feb 33 daysGayner Thomas SinnicksonChief Executive OfficerPPurchase+25$1,317.18+$32.9K+0.1%42.1K after
Nov 14, 2022 (view filing)Nov 104 daysMarkel Anthony FDirectorSSale−110$1,253.14−$137.8K−5.5%1.88K after
Nov 9, 2022 (view filing)Nov 81 dayGayner Thomas SinnicksonCo-Chief Executive OfficerPPurchase+50$1,230.60+$61.5K+0.1%42.1K after
Aug 24, 2022 (view filing)Aug 231 dayPuckett A. LynneDirectorPPurchase+83$1,213.86+$100.8K+9.5%955.64 after
Aug 5, 2022 (view filing)Aug 41 dayPuckett A. LynneDirectorPPurchase+48$1,196.54+$57.4K+5.8%872.64 after
Aug 5, 2022 (view filing)Aug 41 dayPuckett A. LynneDirectorPPurchase+36$1,196.22+$43.1KNew position36 after