Thomas Sinnickson Gayner - 15 May 2026 Form 4 Insider Report for MARKEL GROUP INC. (MKL)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: MKL
Reported as of: 15 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 19 May 2026, 16:33:37 UTC
Prior SEC filing: 03 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Karen O. Earls, Attorney-in-fact for Thomas Sinnickson Gayner

Key filing fact

Thomas Sinnickson Gayner filed Form 4 for MARKEL GROUP INC. (MKL) on 19 May 2026.

Key facts

This page summarizes Thomas Sinnickson Gayner's Form 4 filing for MARKEL GROUP INC. (MKL).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 19 May 2026, 16:33.

Change

Previous filing in this sequence was filed on 03 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001159015 Primary reporting owner

GAYNER THOMAS SINNICKSON

Relationship: Chief Executive Officer, Director
Address: C/O MARKEL GROUP INC., 4521 HIGHWOODS PARKWAY, GLEN ALLEN
Signature: /s/ Karen O. Earls, Attorney-in-fact for Thomas Sinnickson Gayner
Signature date: 19 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MKL transaction

Common Stock

Tax liability

Transaction value
Shares: -482
Change %: -0.85%
Price: $1844.00^*
Shares after: 56,260
Date: 15 May 2026
Ownership: Direct

MKL holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,822
Date: 15 May 2026
Ownership: 401(k) Plan
Footnotes: F1

MKL holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 423
Date: 15 May 2026
Ownership: By Trust
Footnotes: F2

MKL holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,024
Date: 15 May 2026
Ownership: By Spouse
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Between December 31, 2025 and March 31, 2026, the reporting person acquired 11.218 shares under the MKL 401(k) plan. The information reported herein is based on the plan balance as of March 31, 2026.

Footnote F2

Beneficial ownership of securities is expressly disclaimed.