InsidersTradesSigma
Explore the detailed record of transactions filed by Costanzo Brian J., Autre. Insider active across 1 companies, notably MARKEL CORP. Cumulatively, 1 reports have been recorded. The latest transaction was filed on 15 February 2022 (Attribution). Regulator: SEC (Form 4). All data is accessible without signup.
1 of 1 declaration
Brian J. Costanzo is the CAO and Controller at Markel Corp. He is responsible for financial management and compliance, playing a key role in overseeing the financial operations of the organization.