Costanzo Brian J.
SEC CIK 1873434 · EDGAR
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| MKL | MARKEL GROUP INC. | SVP, CAO, Fin, Ctrl | 1,632 | — | — | 26 | 2022-02-15 | 2026-06-30 |
Most active insiders at MKL, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | MARKEL STEVEN A | Dir | — | $3.18M |
| 2 | Wilson Simon | EVP, CEO, Markel Insurance | — | $363.4K |
| 3 | Leopold Diane | Dir | $268.7K | — |
| 4 | Harris Greta J | Dir | — | $140.4K |
| 5 | Puckett A. Lynne | Dir | $102.3K | — |
| 6 | Grandis Meade P. | CAO, Ctrl | — | — |
| 7 | Crowley Andrew G. | Pres, Markel Ventures | — | — |
| 8 | Housel Morgan E. | Dir | — | — |
| 9 | Costanzo Brian J. | CFO | — | — |
| 10 | Besca Mark | Dir | — | — |
Transactions 26
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-16 16:55 | 2026-06-30 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,617.19 | +2.16 | 1,632 | +0.1% | +$3,500 | |
| 2026-05-19 16:31 | 2026-05-15 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | F - Tax | $1,844.00 | -13.08 | 1,600 | -0.8% | -$24.1K | |
| 2026-05-19 16:31 | 2026-05-15 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,659.60 | +30.13 | 1,630 | +2% | +$50.0K | |
| 2026-04-15 16:32 | 2026-03-31 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,626.96 | +1.84 | 1,613 | +0.1% | +$3,000 | |
| 2026-02-26 | 2026-02-24 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | A - Grant | $0.00 | +654.64 | 1,611 | +68% | $0 | |
| 2026-01-20 | 2025-12-31 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,602.62 | +2.18 | 956.54 | +0.2% | +$3,494 | |
| 2025-12-03 | 2025-12-02 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | F - Tax | $2,060.83 | -21.72 | 954.36 | -2% | -$44.8K | |
| 2025-10-16 | 2025-09-30 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,624.66 | +1.85 | 976.08 | +0.2% | +$3,006 | |
| 2025-07-16 | 2025-06-30 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,580.87 | +2.21 | 974.24 | +0.2% | +$3,494 | |
| 2025-04-17 | 2025-03-31 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,459.76 | +2.06 | 972.02 | +0.2% | +$3,007 | |
| 2025-02-20 | 2025-02-18 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | A - Grant | $0.00 | +379.41 | 969.97 | +64% | $0 | |
| 2025-01-17 | 2024-12-31 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,336.81 | +2.09 | 590.55 | +0.4% | +$2,794 | |
| 2024-12-09 | 2024-12-05 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | F - Tax | $1,759.04 | -21 | 588.46 | -3% | -$36.9K | |
| 2024-10-16 | 2024-09-30 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,333.29 | +1.80 | 609.46 | +0.3% | +$2,400 | |
| 2024-07-17 | 2024-06-28 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,282.46 | +2.18 | 607.66 | +0.4% | +$2,796 | |
| 2024-04-18 | 2024-03-28 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,220.99 | +1.97 | 605.48 | +0.3% | +$2,405 | |
| 2024-02-27 | 2024-02-20 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | A - Grant | $0.00 | +108 | 603.51 | +22% | $0 | |
| 2024-02-22 | 2024-02-20 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | A - Grant | $0.00 | +94 | 495.51 | +23% | $0 | |
| 2024-01-17 | 2023-12-29 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CFO | J - Other | $1,206.92 | +2.32 | 401.51 | +0.6% | +$2,800 | |
| 2023-12-06 | 2023-12-05 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | SVP, CAO, Fin, Ctrl | F - Tax | $1,401.29 | -15 | 399.19 | -4% | -$21.0K | |
| 2023-10-17 | 2023-09-29 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | SVP, CAO, Fin, Ctrl | J - Other | $1,164.51 | +2.06 | 414.19 | +0.5% | +$2,399 | |
| 2023-07-14 | 2023-06-30 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | SVP, CAO, Fin, Ctrl | J - Other | $1,101.99 | +1.37 | 412.13 | +0.3% | +$1,510 | |
| 2023-05-18 | 2023-05-16 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | SVP, CAO, Fin, Ctrl | A - Grant | $0.00 | +29 | 410.76 | +8% | $0 | |
| 2023-04-28 | 2023-03-31 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | SVP, CAO, Fin, Ctrl | J - Other | $1,085.80 | +1.19 | 381.76 | +0.3% | +$1,292 | |
| 2023-02-15 | 2023-02-14 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | SVP, CAO, Fin, Ctrl | A - Grant | $0.00 | +54 | 380.58 | +17% | $0 | |
| 2022-02-17 | 2022-02-15 | MKL | MARKEL GROUP INC. | Costanzo Brian J. | CAO, Ctrl | A - Grant | $0.00 | +69 | 322.01 | +27% | $0 |
Purchase Sale Sale after option exercise All abbreviations