Markel Group Inc. (MKL) Insider Ownership

Historic Insider Ownership Trends

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Steven A Markel Vice Chairman 60,368 0 15 Dec, 2025
Thomas Sinnickson Gayner Chief Executive Officer 56,741 0 26 Feb, 2026
Anthony F Markel Vice Chairman 0 36,258 06 Aug, 2024
Anthony F Markel Vice Chairman 15,000 0 25 Feb, 2025
Richard R Iii Whitt Co Chief Executive Officer 11,360 0 07 Dec, 2022
Richard R Iii Whitt Co Chief Executive Officer 11,360 0 07 Dec, 2022
Bradley James Kiscaden Pres/Chief Admin Off Ins Ops 8,090 0 17 Feb, 2022
Jeremy Andrew Noble President, Insurance 4,888 0 20 Feb, 2025
Jeremy Andrew Noble President, Insurance 4,888 0 20 Feb, 2025
Michael R Heaton Evp Chief Operating Officer 4,709 0 03 Dec, 2025
Anthony F Markel Vice Chairman 0 4,270 08 Nov, 2024
Richard Randolph Grinnan Svp, Chief Legal Officer Sec 4,263 0 26 Feb, 2026
Michael Oreilly - 3,756 0 17 Jun, 2025
Michael Oreilly - 3,756 0 17 Jun, 2025
K Bruce Connell - 2,762 0 18 May, 2023
Andrew G. Crowley Evp Pres., Markel Ventures 2,753 0 15 Apr, 2026
Simon Wilson Evp And Ceo, Markel Insurance 2,397 0 26 Feb, 2026
Simon Wilson Evp And Ceo, Markel Insurance 2,397 0 26 Feb, 2026
Robert C Cox Pres. Coo, Insur. Operations 2,346 0 07 Dec, 2022
Diane Leopold - 2,090 0 17 Jun, 2025
Anthony F Markel Vice Chairman 0 1,882 07 Feb, 2023
Brian J. Costanzo Chief Financial Officer 1,613 0 15 Apr, 2026
Linda V Schreiner Svp, Strategic Management 1,528 0 09 Dec, 2021
Linda V Schreiner Svp, Strategic Management 1,528 0 09 Dec, 2021
Mark Besca - 1,052 0 23 May, 2025
Harold Lawrence Jr. Morrison - 1,005 0 17 Jun, 2025
Harold Lawrence Jr. Morrison - 1,005 0 17 Jun, 2025
A. Lynne Puckett - 0 960 06 Feb, 2024
A. Lynne Puckett - 0 960 06 Feb, 2024
Lawrence A Cunningham - 920 0 17 Jun, 2025
Morgan E. Housel - 874 0 17 Jun, 2025
Susan L. Davies Chro, Markel Insurance 848 0 16 Dec, 2022
Greta J Harris - 632 0 27 May, 2025
A. Lynne Puckett - 352 0 17 Jun, 2025
A. Lynne Puckett - 352 0 17 Jun, 2025
Meade P. Grandis Cao And Controller 294 0 26 Feb, 2026
Meade P. Grandis Cao And Controller 0 275 27 Aug, 2025
Jonathan E Michael - 178 0 17 Jun, 2025
A. Lynne Puckett - 0 36 05 Aug, 2022
A. Lynne Puckett - 0 36 05 Aug, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
31 Mar, 2026 Andrew G. Crowley Common Stock A 9 $1,626.96 2,753 D J
31 Mar, 2026 Brian J. Costanzo Common Stock A 2 $1,626.96 1,613 D J
24 Feb, 2026 Thomas Sinnickson Gayner Common Stock A 4,484 $0.00 56,741 D A
24 Feb, 2026 Brian J. Costanzo Common Stock A 655 $0.00 1,611 D A
24 Feb, 2026 Richard Randolph Grinnan Common Stock A 801 $0.00 4,263 D A
24 Feb, 2026 Simon Wilson Common Stock A 868 $0.00 2,497 D A
24 Feb, 2026 Andrew G. Crowley Common Stock A 830 $0.00 2,744 D A
24 Feb, 2026 Meade P. Grandis Common Stock A 70 $0.00 294 D A
26 Feb, 2026 Simon Wilson Common Stock D 100 $2,079.48 2,397 D S
17 Feb, 2026 Simon Wilson Common Stock D 47 $2,084.46 1,629 D F
31 Dec, 2025 Brian J. Costanzo Common Stock A 2 $1,602.62 957 D J
02 Dec, 2025 Simon Wilson Common Stock D 94 $2,060.83 1,676 D F
02 Dec, 2025 Andrew G. Crowley Common Stock D 65 $2,060.83 1,914 D F
02 Dec, 2025 Richard Randolph Grinnan Common Stock D 138 $2,060.83 3,463 D F
02 Dec, 2025 Michael R Heaton Common Stock D 217 $2,060.83 4,709 D F
02 Dec, 2025 Brian J. Costanzo Common Stock D 22 $2,060.83 954 D F
02 Dec, 2025 Thomas Sinnickson Gayner Common Stock D 37 $2,060.83 52,258 D F
25 Nov, 2025 Simon Wilson Common Stock D 75 $2,072.94 1,770 D S
30 Sep, 2025 Brian J. Costanzo Common Stock A 2 $1,624.66 976 D J
25 Aug, 2025 Meade P. Grandis Common Stock D 75 $1,983.78 275 I S