Form 4 holding
Chief Executive Officer, Director
MARKEL GROUP INC.
- Security class
- Common Stock
- Shares / value
- 56,260
- Estimated value
- $107,684,937
- Report date
- 15 May 2026
- Price
- $1914.07
- Ownership
- Direct
Thomas Sinnickson Gayner
Insider Reports History
- Reporting-owner location
- Glen Allen, VA
- Latest reporting-owner signature
-
/s/ Karen O. Earls, Attorney-in-fact for Thomas Sinnickson Gayner
Source: Latest parsed Forms 3/4/5 signature
- Transaction source note
- Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.
Identity
Names, identifiers, and filing context for this profile.
1 identity field
SEC source record
Original filing metadata and source links for verification.
1 source field
Source evidence
Original filing metadata and source links for verification.
1 source field
Reported holdings for Thomas Sinnickson Gayner
Form 4 holding
Director
Cable One, Inc.
- Security class
- Common Stock, par value $0.01
- Shares / value
- 26,700
- Estimated value
- $14,454,045
- Report date
- 10 Mar 2023
- Price
- $541.35
- Ownership
- By Markel Corporation
Form 4 holding
Chief Executive Officer, Director
MARKEL GROUP INC.
- Security class
- Common Stock
- Shares / value
- 2,822
- Estimated value
- $5,402,056
- Report date
- 15 May 2026
- Price
- $1914.07
- Ownership
- 401(k) Plan
Form 4 holding
Chief Executive Officer, Director
MARKEL GROUP INC.
- Security class
- Common Stock
- Shares / value
- 2,024
- Estimated value
- $3,874,077
- Report date
- 15 May 2026
- Price
- $1914.07
- Ownership
- By Spouse
Form 4 holding
Director
Graham Holdings Co
- Security class
- Class B Common Stock
- Shares / value
- 5,200
- Estimated value
- $3,865,160
- Report date
- 12 Sep 2024
- Price
- $743.30
- Ownership
- By Markel Group Inc.
Form 4 holding
Director
Colfax CORP
- Security class
- Common stock, par value $.001
- Shares / value
- 65,060
- Estimated value
- $2,529,533
- Report date
- 31 Dec 2021
- Price
- $38.88
- Ownership
- Direct
Form 4 holding
Director
Cable One, Inc.
- Security class
- Common Stock, par value $0.01
- Shares / value
- 2,420
- Estimated value
- $1,310,067
- Report date
- 10 Mar 2023
- Price
- $541.35
- Ownership
- Direct
Form 4 holding
Director
Cable One, Inc.
- Security class
- Deferred Stock Unit, par value $0.01
- Shares / value
- 2,421
- Estimated value
- $1,091,096
- Report date
- 10 Mar 2023
- Price
- $450.68
- Ownership
- Direct
Form 4 holding
Chief Executive Officer, Director
MARKEL GROUP INC.
- Security class
- Common Stock
- Shares / value
- 423
- Estimated value
- $809,000
- Report date
- 15 May 2026
- Price
- $1914.07
- Ownership
- By Trust
Form 4 holding
Director
COCA COLA CO
- Security class
- Phantom Share Units
- Shares / value
- 15,232
- Estimated value
- $791,091
- Report date
- 01 Apr 2026
- Price
- $71.55
- Ownership
- Direct
- Underlying class
- Common Stock, $.25 Par Value
- Underlying amount
Form 4 holding
Director
Graham Holdings Co
- Security class
- Class B Common Stock
- Shares / value
- 700
- Estimated value
- $520,310
- Report date
- 12 Sep 2024
- Price
- $743.30
- Ownership
- Direct
Form 4 holding
Director
COCA COLA CO
- Security class
- Common Stock, $.25 Par Value
- Shares / value
- 5,200
- Estimated value
- $363,532
- Report date
- 01 Apr 2026
- Price
- $69.91
- Ownership
- Direct
Form 4 holding
Director
COCA COLA CO
- Security class
- Common Stock, $.25 Par Value
- Shares / value
- 5,200
- Estimated value
- $316,535
- Report date
- 01 Apr 2024
- Price
- $60.87
- Ownership
- Direct
Insider Reports Filed by Thomas Sinnickson Gayner
4
MKL
MARKEL GROUP INC.
- Report period
- 15 May 2026
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 19 May 2026, 16:33
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
KO
COCA COLA CO
- Report period
- 01 Apr 2026
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 03 Apr 2026, 13:37
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 24 Feb 2026
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 26 Feb 2026, 18:23
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 02 Dec 2025
- Transactions
- 1
- Transaction value
- -$75,453
- Accepted by SEC
- 03 Dec 2025, 16:42
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
KO
COCA COLA CO
- Report period
- 01 Apr 2025
- Transactions
- 1
- Transaction value
- +$290,000
- Accepted by SEC
- 03 Apr 2025, 12:28
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 18 Feb 2025
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 20 Feb 2025, 16:49
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 07 Feb 2025
- Transactions
- 1
- Transaction value
- +$200,801
- Accepted by SEC
- 07 Feb 2025, 16:35
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 05 Dec 2024
- Transactions
- 1
- Transaction value
- -$79,157
- Accepted by SEC
- 09 Dec 2024, 16:46
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 01 Nov 2024
- Transactions
- 1
- Transaction value
- +$154,972
- Accepted by SEC
- 05 Nov 2024, 16:34
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
GHC
Graham Holdings Co
- Report period
- 12 Sep 2024
- Transactions
- 1
- Transaction value
- +$74,330
- Accepted by SEC
- 13 Sep 2024, 16:15
- Role
- Director
- Next action
- Open filing details
4
KO
COCA COLA CO
- Report period
- 01 Apr 2024
- Transactions
- 1
- Transaction value
- +$290,000
- Accepted by SEC
- 03 Apr 2024, 12:56
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 20 Feb 2024
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 27 Feb 2024, 16:32
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 20 Feb 2024
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 22 Feb 2024, 16:32
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 02 Feb 2024
- Transactions
- 1
- Transaction value
- +$141,474
- Accepted by SEC
- 05 Feb 2024, 16:38
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 05 Dec 2023
- Transactions
- 1
- Transaction value
- -$64,459
- Accepted by SEC
- 06 Dec 2023, 16:31
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
GHC
Graham Holdings Co
- Report period
- 09 Nov 2023
- Transactions
- 1
- Transaction value
- +$60,724
- Accepted by SEC
- 09 Nov 2023, 16:20
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 03 Nov 2023
- Transactions
- 1
- Transaction value
- +$131,192
- Accepted by SEC
- 06 Nov 2023, 16:39
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
GHC
Graham Holdings Co
- Report period
- 08 Sep 2023
- Transactions
- 1
- Transaction value
- +$56,983
- Accepted by SEC
- 12 Sep 2023, 18:14
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL GROUP INC.
- Report period
- 04 Aug 2023
- Transactions
- 1
- Transaction value
- +$147,947
- Accepted by SEC
- 07 Aug 2023, 16:33
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
KO
COCA COLA CO
- Report period
- 19 Jul 2023
- Transactions
- 1
- Transaction value
- +$120,000
- Accepted by SEC
- 21 Jul 2023, 15:47
- Role
- Director
- Next action
- Open filing details
3
KO
COCA COLA CO
- Report period
- 19 Jul 2023
- Transactions
- 0
- Transaction value
- $0
- Accepted by SEC
- 21 Jul 2023, 15:36
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 16 May 2023
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 18 May 2023, 16:17
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
GHC
Graham Holdings Co
- Report period
- 09 May 2023
- Transactions
- 1
- Transaction value
- +$58,163
- Accepted by SEC
- 09 May 2023, 16:24
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 02 May 2023
- Transactions
- 1
- Transaction value
- +$67,996
- Accepted by SEC
- 03 May 2023, 16:33
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 10 Mar 2023
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 13 Mar 2023, 20:49
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 06 Mar 2023
- Transactions
- 1
- Transaction value
- +$70,930
- Accepted by SEC
- 07 Mar 2023, 15:17
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 14 Feb 2023
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 15 Feb 2023, 15:33
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 03 Feb 2023
- Transactions
- 1
- Transaction value
- +$32,930
- Accepted by SEC
- 06 Feb 2023, 15:45
- Role
- Chief Executive Officer, Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 16 Dec 2022
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 19 Dec 2022, 17:43
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 06 Dec 2022
- Transactions
- 1
- Transaction value
- -$56,560
- Accepted by SEC
- 07 Dec 2022, 15:40
- Role
- Co-Chief Executive Officer, Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 14 Nov 2022
- Transactions
- 1
- Transaction value
- +$3,573,598
- Accepted by SEC
- 15 Nov 2022, 15:56
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 08 Nov 2022
- Transactions
- 2
- Transaction value
- +$6,568,601
- Accepted by SEC
- 10 Nov 2022, 15:14
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 08 Nov 2022
- Transactions
- 1
- Transaction value
- +$61,530
- Accepted by SEC
- 09 Nov 2022, 15:37
- Role
- Co-Chief Executive Officer, Director
- Next action
- Open filing details
4
GHC
Graham Holdings Co
- Report period
- 16 Sep 2022
- Transactions
- 1
- Transaction value
- +$55,615
- Accepted by SEC
- 16 Sep 2022, 16:20
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 12 Sep 2022
- Transactions
- 1
- Transaction value
- +$547,370
- Accepted by SEC
- 13 Sep 2022, 16:55
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 06 Sep 2022
- Transactions
- 1
- Transaction value
- +$553,220
- Accepted by SEC
- 07 Sep 2022, 17:36
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 29 Aug 2022
- Transactions
- 1
- Transaction value
- +$588,875
- Accepted by SEC
- 31 Aug 2022, 17:35
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 24 Aug 2022
- Transactions
- 1
- Transaction value
- +$61,250
- Accepted by SEC
- 25 Aug 2022, 19:56
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 04 Aug 2022
- Transactions
- 1
- Transaction value
- +$60,123
- Accepted by SEC
- 05 Aug 2022, 16:32
- Role
- Co-Chief Executive Officer, Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 01 Jun 2022
- Transactions
- 1
- Transaction value
- +$6,455,850
- Accepted by SEC
- 03 Jun 2022, 16:34
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 25 May 2022
- Transactions
- 1
- Transaction value
- +$62,898
- Accepted by SEC
- 27 May 2022, 16:33
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 20 May 2022
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 24 May 2022, 19:07
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 09 May 2022
- Transactions
- 1
- Transaction value
- +$65,300
- Accepted by SEC
- 09 May 2022, 17:03
- Role
- Co-Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 15 Feb 2022
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 17 Feb 2022, 16:49
- Role
- Co-Chief Executive Officer, Director
- Next action
- Open filing details
4
ENOV
Colfax CORP
- Report period
- 31 Dec 2021
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 04 Jan 2022, 17:30
- Role
- Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 07 Dec 2021
- Transactions
- 1
- Transaction value
- -$39,984
- Accepted by SEC
- 09 Dec 2021, 15:49
- Role
- Co-Chief Executive Officer, Director
- Next action
- Open filing details
4
MKL
MARKEL CORP
- Report period
- 22 Nov 2021
- Transactions
- 1
- Transaction value
- +$31,282
- Accepted by SEC
- 23 Nov 2021, 15:42
- Role
- Co-Chief Executive Officer, Director
- Next action
- Open filing details
4
GHC
Graham Holdings Co
- Report period
- 11 Nov 2021
- Transactions
- 1
- Transaction value
- +$59,517
- Accepted by SEC
- 15 Nov 2021, 10:39
- Role
- Director
- Next action
- Open filing details
4
ENOV
Colfax CORP
- Report period
- 30 Sep 2021
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 04 Oct 2021, 18:00
- Role
- Director
- Next action
- Open filing details
4
ENOV
Colfax CORP
- Report period
- 30 Jun 2021
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 01 Jul 2021, 17:51
- Role
- Director
- Next action
- Open filing details
4
CABO
Cable One, Inc.
- Report period
- 21 May 2021
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 25 May 2021, 17:29
- Role
- Director
- Next action
- Open filing details
4
ENOV
Colfax CORP
- Report period
- 12 May 2021
- Transactions
- 1
- Transaction value
- $0
- Accepted by SEC
- 14 May 2021, 19:00
- Role
- Director
- Next action
- Open filing details