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GAYNER THOMAS SINNICKSON

Chief Executive Officer at MARKEL · Director at Graham · Director at Cable One. Filing since 31 Dec 2012. CIK 0001159015

MKL MARKEL GROUP INC. Chief Executive Officer · 13 trades GHC Graham Holdings Co Director · 6 trades CABO Cable One, Inc. Director · 10 trades
Company
Date
Role
Action
Shares
Amount
Of holding
MKL MARKEL GROUP INC.
7 Feb 2025
Chief Executive Officer
Bought
100
$200.80K
0.2%
MKL MARKEL GROUP INC.
1 Nov 2024
Chief Executive Officer
Bought
100
$154.97K
0.2%
GHC Graham Holdings Co
12 Sep 2024
Director
Bought
100
$74.33K
16.7%
MKL MARKEL GROUP INC.
2 Feb 2024
Chief Executive Officer
Bought
100
$141.47K
0.2%
GHC Graham Holdings Co
9 Nov 2023
Director
Bought
100
$60.72K
20.0%
MKL MARKEL GROUP INC.
3 Nov 2023
Chief Executive Officer
Bought
100
$131.19K
0.2%
GHC Graham Holdings Co
8 Sep 2023
Director
Bought
100
$56.98K
25.0%
MKL MARKEL GROUP INC.
4 Aug 2023
Chief Executive Officer
Bought
100
$147.95K
0.2%
GHC Graham Holdings Co
9 May 2023
Director
Bought
100
$58.16K
1.8%
MKL MARKEL GROUP INC.
2 May 2023
Chief Executive Officer
Bought
50
$68.00K
0.1%
CABO Cable One, Inc.
6 Mar 2023
Director
Bought
100
$70.93K
4.3%
MKL MARKEL GROUP INC.
3 Feb 2023
Chief Executive Officer
Bought
25
$32.93K
0.1%
CABO Cable One, Inc.
14 Nov 2022
Director
Bought
5,000
$3.57M
23.0%
CABO Cable One, Inc.
9 Nov 2022
Director
Bought
5,000
$3.20M
29.9%
CABO Cable One, Inc.
8 Nov 2022
Director
Bought
5,000
$3.37M
42.7%
MKL MARKEL GROUP INC.
8 Nov 2022
Co-Chief Executive Officer
Bought
50
$61.53K
0.1%
GHC Graham Holdings Co
16 Sep 2022
Director
Bought
100
$55.62K
1.9%
CABO Cable One, Inc.
12 Sep 2022
Director
Bought
500
$547.37K
4.5%
CABO Cable One, Inc.
6 Sep 2022
Director
Bought
500
$553.22K
4.7%
CABO Cable One, Inc.
29 Aug 2022
Director
Bought
500
$588.88K
4.9%
CABO Cable One, Inc.
24 Aug 2022
Director
Bought
50
$61.25K
2.2%
MKL MARKEL GROUP INC.
4 Aug 2022
Co-Chief Executive Officer
Bought
50
$60.12K
0.1%
CABO Cable One, Inc.
1 Jun 2022
Director
Bought
5,000
$6.46M
96.2%
CABO Cable One, Inc.
25 May 2022
Director
Bought
50
$62.90K
0.7%
MKL MARKEL GROUP INC.
9 May 2022
Co-Chief Executive Officer
Bought
50
$65.30K
0.1%
MKL MARKEL GROUP INC.
22 Nov 2021
Co-Chief Executive Officer
Bought
25
$31.28K
0.1%
GHC Graham Holdings Co
11 Nov 2021
Director
Bought
100
$59.52K
1.9%
MKL MARKEL GROUP INC.
16 Feb 2016
Co-Chief Executive Officer
Sold, plan not stated
5,000
$4.13M
12.7%
MKL MARKEL GROUP INC.
31 Dec 2012
Pres. & Chief Investment Off.
Bought
100
$43.03K
0.3%
29 decisions on file.