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Trade Date*
Filing Date*
Insider Name
Buy/Sell
Company Name
Ticker
Price*
Amount
Shares Change
Feb 07, 2025
Feb 07, 2025
Gayner Thomas Sinnickson
CEO
Buy
Markel Group Inc.
MKL
$2008.01
$200,801
+0.18%
Nov 01, 2024
Nov 05, 2024
Gayner Thomas Sinnickson
CEO
Buy
Markel Group Inc.
MKL
$1549.72
$154,972
+0.18%
Sep 12, 2024
Sep 13, 2024
Gayner Thomas Sinnickson
Dir
Buy
Graham Holdings Co
GHC
$743.3
$74,330
+1.67%
Feb 02, 2024
Feb 05, 2024
Gayner Thomas Sinnickson
CEO
Buy
Markel Group Inc.
MKL
$1414.74
$141,474
+0.20%
Nov 09, 2023
Nov 09, 2023
Gayner Thomas Sinnickson
Dir
Buy
Graham Holdings Co
GHC
$607.24
$60,724
+1.69%
Nov 03, 2023
Nov 06, 2023
Gayner Thomas Sinnickson
CEO
Buy
Markel Group Inc.
MKL
$1311.92
$131,192
+0.20%
Sep 08, 2023
Sep 12, 2023
Gayner Thomas Sinnickson
Dir
Buy
Graham Holdings Co
GHC
$569.83
$56,983
+1.72%
Aug 04, 2023
Aug 07, 2023
Gayner Thomas Sinnickson
CEO
Buy
Markel Group Inc.
MKL
$1479.47
$147,947
+0.20%
May 09, 2023
May 09, 2023
Gayner Thomas Sinnickson
Dir
Buy
Graham Holdings Co
GHC
$581.63
$58,163
+1.75%
May 02, 2023
May 03, 2023
Gayner Thomas Sinnickson
CEO
Buy
Markel Corp
MKL
$1359.93
$67,997
+0.10%
Mar 06, 2023
Mar 07, 2023
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$709.3
$70,930
+0.34%
Feb 03, 2023
Feb 06, 2023
Gayner Thomas Sinnickson
CEO
Buy
Markel Corp
MKL
$1317.18
$32,930
+0.05%
Nov 14, 2022
Nov 15, 2022
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$714.72
$4M
+14.70%
Nov 08, 2022
Nov 10, 2022
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$656.86
$7M
+29.40%
Nov 08, 2022
Nov 09, 2022
Gayner Thomas Sinnickson
Co-CEO
Buy
Markel Corp
MKL
$1230.6
$61,530
+0.11%
Sep 16, 2022
Sep 16, 2022
Gayner Thomas Sinnickson
Dir
Buy
Graham Holdings Co
GHC
$556.15
$55,615
+1.79%
Sep 12, 2022
Sep 13, 2022
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$1094.74
$547,370
+3.44%
Sep 06, 2022
Sep 07, 2022
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$1106.44
$553,220
+3.57%
Aug 29, 2022
Aug 31, 2022
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$1177.75
$588,875
+3.70%
Aug 24, 2022
Aug 25, 2022
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$1225
$61,250
+0.40%
Aug 04, 2022
Aug 05, 2022
Gayner Thomas Sinnickson
Co-CEO
Buy
Markel Corp
MKL
$1202.46
$60,123
+0.11%
Jun 01, 2022
Jun 03, 2022
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$1291.17
$6M
+28.62%
May 25, 2022
May 27, 2022
Gayner Thomas Sinnickson
Dir
Buy
Cable One, Inc.
CABO
$1257.97
$62,899
+0.66%
May 09, 2022
May 09, 2022
Gayner Thomas Sinnickson
Co-CEO
Buy
Markel Corp
MKL
$1306
$65,300
+0.11%
Nov 22, 2021
Nov 23, 2021
Gayner Thomas Sinnickson
Co-CEO
Buy
Markel Corp
MKL
$1251.3
$31,283
+0.06%
Nov 11, 2021
Nov 15, 2021
Gayner Thomas Sinnickson
Dir
Buy
Graham Holdings Co
GHC
$595.17
$59,517
+1.82%
Feb 16, 2016
Feb 18, 2016
Gayner Thomas Sinnickson
Co-CEO
Sell
Markel Corp
MKL
$826.03
$4M
-11.22%