Insider Trading & Ownership of THOMAS SINNICKSON GAYNER

Location: Glen Allen, VA
Summary: The estimated net worth of THOMAS SINNICKSON GAYNER is at least $143,942,450 dollars as of 03 Dec 2025. THOMAS SINNICKSON GAYNER is the Chief Executive Officer, Director of MARKEL GROUP INC. and owns shares of MARKEL GROUP INC. (MKL) stock worth about $118.69M. THOMAS SINNICKSON GAYNER is the Director of Cable One, Inc. and owns shares of Cable One, Inc. (CABO) stock worth about $16.86M. THOMAS SINNICKSON GAYNER is the Director of Graham Holdings Co and owns shares of Graham Holdings Co (GHC) stock worth about $4.39M. THOMAS SINNICKSON GAYNER is the Director of Colfax CORP and owns shares of Enovis CORP (ENOV) stock worth about $2.53M. THOMAS SINNICKSON GAYNER is the Director of COCA COLA CO and owns shares of COCA COLA CO (KO) stock worth about $1.48M.
Signature: /s/ Sarah T. Mikowski, Attorney-in-fact for Thomas Sinnickson Gayner
All Insider Reports: All Insider Reports

Notify me when THOMAS SINNICKSON GAYNER files a new Insider Trading report.

Ownership of THOMAS SINNICKSON GAYNER

Symbol	Company	Relationship	Holdings Value	Report Period
MKL	MARKEL GROUP INC.	Chief Executive Officer, Director	$118,692,976	02 Dec 2025
CABO	Cable One, Inc.	Director	$16,855,208	10 Mar 2023
GHC	Graham Holdings Co	Director	$4,385,470	12 Sep 2024
ENOV	Colfax CORP	Director	$2,529,533	31 Dec 2021
KO	COCA COLA CO	Director	$1,479,263	01 Apr 2025

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.