Costanzo Brian J. — Chief Financial Officer
Insider trading activity for Costanzo Brian J. sourced from SEC EDGAR Form 4 filings.
Overview
- Title: Chief Financial Officer
- Company: MARKEL GROUP INC.
- Total insider trades: 4
- Total buy volume: $0
- Total sell volume: $0
- Last trade: Oct 16, 2026
Recent Trades
| Date | Insider | Ticker / Company | Type | Shares | Value |
|---|---|---|---|---|---|
| Sep 30, 2026 | Costanzo Brian J. | MKL MARKEL GROUP INC. | OTHER | 2.061 | $3K |
| May 15, 2026 | Costanzo Brian J. | MKL MARKEL GROUP INC. | OTHER | 30.128 | $50K |
| May 15, 2026 | Costanzo Brian J. | MKL MARKEL GROUP INC. | OTHER | 13.08 | $24K |
| Mar 31, 2026 | Costanzo Brian J. | MKL MARKEL GROUP INC. | OTHER | 1.844 | $3K |