THOMAS SINNICKSON GAYNER

Insider Reports History

Location
Glen Allen, VA
Signature
/s/ Sarah T. Mikowski, Attorney-in-fact for Thomas Sinnickson Gayner
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by THOMAS SINNICKSON GAYNER:

Company Role Class Num Shares Value Price $ Report Date Ownership
MARKEL GROUP INC. Chief Executive Officer, Director Common Stock 52,258 $107,694,271 $2060.83 02 Dec 2025 Direct
Cable One, Inc. Director Common Stock, par value $0.01 26,700 $14,454,045 $541.35 10 Mar 2023 By Markel Corporation
MARKEL GROUP INC. Chief Executive Officer, Director Common Stock 2,811 $5,880,513 $2091.91 02 Dec 2025 401(k) Plan
MARKEL GROUP INC. Chief Executive Officer, Director Common Stock 2,000 $4,183,820 $2091.91 02 Dec 2025 By Spouse
Graham Holdings Co Director Class B Common Stock 5,200 $3,865,160 $743.30 12 Sep 2024 By Markel Group Inc.
Colfax CORP Director Common stock, par value $.001 65,060 $2,529,533 $38.88 31 Dec 2021 Direct
Cable One, Inc. Director Common Stock, par value $0.01 2,420 $1,310,067 $541.35 10 Mar 2023 Direct
Cable One, Inc. Director Deferred Stock Unit, par value $0.01 2,421 $1,091,096 $450.68 10 Mar 2023 Direct
MARKEL GROUP INC. Chief Executive Officer, Director Common Stock 447 $934,372 $2091.91 02 Dec 2025 By Trust
COCA COLA CO Director Phantom Share Units 11,056 $791,091 $71.55 01 Apr 2025 Direct
Graham Holdings Co Director Class B Common Stock 700 $520,310 $743.30 12 Sep 2024 Direct
COCA COLA CO Director Common Stock, $.25 Par Value 5,200 $371,637 $71.47 01 Apr 2025 Direct
COCA COLA CO Director Common Stock, $.25 Par Value 5,200 $316,535 $60.87 01 Apr 2024 Direct

Insider Reports Filed by THOMAS SINNICKSON GAYNER

Symbol Company Period Transactions Value $ Form Type Role Filing Time
MKL MARKEL GROUP INC. 02 Dec 2025 1 -$75,453 4 Chief Executive Officer, Director 03 Dec 2025, 16:42
KO COCA COLA CO 01 Apr 2025 1 +$290,000 4 Director 03 Apr 2025, 12:28
MKL MARKEL GROUP INC. 18 Feb 2025 1 $0 4 Chief Executive Officer, Director 20 Feb 2025, 16:49
MKL MARKEL GROUP INC. 07 Feb 2025 1 +$200,801 4 Chief Executive Officer, Director 07 Feb 2025, 16:35
MKL MARKEL GROUP INC. 05 Dec 2024 1 -$79,157 4 Chief Executive Officer, Director 09 Dec 2024, 16:46
MKL MARKEL GROUP INC. 01 Nov 2024 1 +$154,972 4 Chief Executive Officer, Director 05 Nov 2024, 16:34
GHC Graham Holdings Co 12 Sep 2024 1 +$74,330 4 Director 13 Sep 2024, 16:15
KO COCA COLA CO 01 Apr 2024 1 +$290,000 4 Director 03 Apr 2024, 12:56
MKL MARKEL GROUP INC. 20 Feb 2024 1 $0 4 Chief Executive Officer, Director 27 Feb 2024, 16:32
MKL MARKEL GROUP INC. 20 Feb 2024 1 $0 4 Chief Executive Officer, Director 22 Feb 2024, 16:32
MKL MARKEL GROUP INC. 02 Feb 2024 1 +$141,474 4 Chief Executive Officer, Director 05 Feb 2024, 16:38
MKL MARKEL GROUP INC. 05 Dec 2023 1 -$64,459 4 Chief Executive Officer, Director 06 Dec 2023, 16:31
GHC Graham Holdings Co 09 Nov 2023 1 +$60,724 4 Director 09 Nov 2023, 16:20
MKL MARKEL GROUP INC. 03 Nov 2023 1 +$131,192 4 Chief Executive Officer, Director 06 Nov 2023, 16:39
GHC Graham Holdings Co 08 Sep 2023 1 +$56,983 4 Director 12 Sep 2023, 19:14
MKL MARKEL GROUP INC. 04 Aug 2023 1 +$147,947 4 Chief Executive Officer, Director 07 Aug 2023, 16:33
KO COCA COLA CO 19 Jul 2023 1 +$120,000 4 Director 21 Jul 2023, 15:47
KO COCA COLA CO 19 Jul 2023 0 $0 3 Director 21 Jul 2023, 15:36
MKL MARKEL CORP 16 May 2023 1 $0 4 Chief Executive Officer, Director 18 May 2023, 16:17
GHC Graham Holdings Co 09 May 2023 1 +$58,163 4 Director 09 May 2023, 16:24
MKL MARKEL CORP 02 May 2023 1 +$67,996 4 Chief Executive Officer, Director 03 May 2023, 16:33
CABO Cable One, Inc. 10 Mar 2023 1 $0 4 Director 13 Mar 2023, 20:49
CABO Cable One, Inc. 06 Mar 2023 1 +$70,930 4 Director 07 Mar 2023, 15:17
MKL MARKEL CORP 14 Feb 2023 1 $0 4 Chief Executive Officer, Director 15 Feb 2023, 15:33
MKL MARKEL CORP 03 Feb 2023 1 +$32,930 4 Chief Executive Officer, Director 06 Feb 2023, 15:45
CABO Cable One, Inc. 16 Dec 2022 1 $0 4 Director 19 Dec 2022, 17:43
MKL MARKEL CORP 06 Dec 2022 1 -$56,560 4 Co-Chief Executive Officer, Director 07 Dec 2022, 15:40
CABO Cable One, Inc. 14 Nov 2022 1 +$3,573,598 4 Director 15 Nov 2022, 15:56
CABO Cable One, Inc. 08 Nov 2022 2 +$6,568,601 4 Director 10 Nov 2022, 15:14
MKL MARKEL CORP 08 Nov 2022 1 +$61,530 4 Co-Chief Executive Officer, Director 09 Nov 2022, 15:37
GHC Graham Holdings Co 16 Sep 2022 1 +$55,615 4 Director 16 Sep 2022, 16:20
CABO Cable One, Inc. 12 Sep 2022 1 +$547,370 4 Director 13 Sep 2022, 16:55
CABO Cable One, Inc. 06 Sep 2022 1 +$553,220 4 Director 07 Sep 2022, 17:36
CABO Cable One, Inc. 29 Aug 2022 1 +$588,875 4 Director 31 Aug 2022, 17:35
CABO Cable One, Inc. 24 Aug 2022 1 +$61,250 4 Director 25 Aug 2022, 19:56
MKL MARKEL CORP 04 Aug 2022 1 +$60,123 4 Co-Chief Executive Officer, Director 05 Aug 2022, 16:32
CABO Cable One, Inc. 01 Jun 2022 1 +$6,455,850 4 Director 03 Jun 2022, 16:34
CABO Cable One, Inc. 25 May 2022 1 +$62,898 4 Director 27 May 2022, 16:33
CABO Cable One, Inc. 20 May 2022 1 $0 4 Director 24 May 2022, 19:07
MKL MARKEL CORP 09 May 2022 1 +$65,300 4 Co-Chief Executive Officer, Director 09 May 2022, 17:03
MKL MARKEL CORP 15 Feb 2022 1 $0 4 Co-Chief Executive Officer, Director 17 Feb 2022, 16:49
ENOV Colfax CORP 31 Dec 2021 1 $0 4 Director 04 Jan 2022, 17:30
MKL MARKEL CORP 07 Dec 2021 1 -$39,984 4 Co-Chief Executive Officer, Director 09 Dec 2021, 15:49
MKL MARKEL CORP 22 Nov 2021 1 +$31,282 4 Co-Chief Executive Officer, Director 23 Nov 2021, 15:42
GHC Graham Holdings Co 11 Nov 2021 1 +$59,517 4 Director 15 Nov 2021, 10:39
ENOV Colfax CORP 30 Sep 2021 1 $0 4 Director 04 Oct 2021, 18:00
ENOV Colfax CORP 30 Jun 2021 1 $0 4 Director 01 Jul 2021, 17:51
CABO Cable One, Inc. 21 May 2021 1 $0 4 Director 25 May 2021, 17:29
ENOV Colfax CORP 12 May 2021 1 $0 4 Director 14 May 2021, 19:00