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Markel Group (MKL) CFO reports small insider stock disposition in Form 4

Filing Impact
(Low)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Markel Group Inc. chief financial officer reports a small stock transaction. On 12/02/2025, the CFO filed a Form 4 showing a disposition of 21.723 shares of Markel Group common stock in a transaction coded "F." After this transaction, the officer held 954.3586 shares of common stock directly.

The filing also notes indirect ownership of 223.838 shares through the MKL 401(k) plan, with this plan balance information stated as of September 30, 2025. The transaction reflects routine insider activity disclosed under securities regulations.

Positive

  • None.

Negative

  • None.
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Costanzo Brian J.

(Last) (First) (Middle)
C/O MARKEL GROUP INC.
4521 HIGHWOODS PARKWAY

(Street)
GLEN ALLEN VA 23060

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
MARKEL GROUP INC. [ MKL ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Financial Officer
3. Date of Earliest Transaction (Month/Day/Year)
12/02/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 12/02/2025 F 21.723 D $2,060.83 954.3586 D
Common Stock 223.838 I 401(k) Plan(1)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. The information reported herein is based on the MKL 401(k) plan balance as of September 30, 2025.
Remarks:
/s/ Sarah T. Mikowski, Attorney-in-fact for Brian J. Costanzo 12/03/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Markel Group (MKL) disclose in this Form 4?

The Form 4 reports that the chief financial officer disposed of 21.723 shares of Markel Group common stock on 12/02/2025 in a transaction coded "F."

Who is the reporting person in the Markel Group (MKL) Form 4 filing?

The reporting person is an officer of Markel Group Inc. serving as Chief Financial Officer, filing individually on this Form 4.

How many Markel Group (MKL) shares does the CFO own after the reported transaction?

Following the reported transaction, the CFO beneficially owns 954.3586 shares of Markel Group common stock directly.

What indirect Markel Group (MKL) holdings are reported in the Form 4?

The filing reports 223.838 shares held indirectly through the MKL 401(k) plan, based on the plan balance as of September 30, 2025.

What does transaction code "F" indicate in this Markel Group (MKL) Form 4?

The Form 4 lists an "F" transaction code for the 12/02/2025 disposition of 21.723 shares, indicating a transaction categorized under Instruction 8 for that code.

Is this Markel Group (MKL) Form 4 filed by one or multiple reporting persons?

The Form 4 is indicated as filed by one reporting person, as shown in the individual filing check box.
Markel Corporation

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26.03B
12.35M
2.02%
82.39%
1.43%
Insurance - Property & Casualty
Fire, Marine & Casualty Insurance
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United States
GLEN ALLEN