Costanzo Brian J.
Insider CIK 1873434 · MKL SVP, Finance, CAO & Controller
Trades across companies
| Ticker | Code | Trade | Filed | Shares | Price | Value | Owned after | |
|---|---|---|---|---|---|---|---|---|
| MKL MARKEL GROUP INC. | J Other | 2026-09-30 | 2026-10-16 | 2 | $1455.58 | $3.0K | 1,634 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2026-06-30 | 2026-07-16 | 2 | $1617.19 | $3.5K | 1,632 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2026-05-15 | 2026-05-19 | 30 | $1659.60 | $50.0K | 1,630 | SEC↗ |
| MKL MARKEL GROUP INC. | F Tax w/h | 2026-05-15 | 2026-05-19 | 13 | $1844.00 | $24.1K | 1,600 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2026-03-31 | 2026-04-15 | 2 | $1626.96 | $3.0K | 1,613 | SEC↗ |
| MKL MARKEL GROUP INC. | A Award | 2026-02-24 | 2026-02-26 | 655 | — | $0 | 1,611 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2025-12-31 | 2026-01-20 | 2 | $1602.62 | $3.5K | 957 | SEC↗ |
| MKL MARKEL GROUP INC. | F Tax w/h | 2025-12-02 | 2025-12-03 | 22 | $2060.83 | $44.8K | 954 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2025-09-30 | 2025-10-16 | 2 | $1624.66 | $3.0K | 976 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2025-06-30 | 2025-07-16 | 2 | $1580.87 | $3.5K | 974 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2025-03-31 | 2025-04-17 | 2 | $1459.76 | $3.0K | 972 | SEC↗ |
| MKL MARKEL GROUP INC. | A Award | 2025-02-18 | 2025-02-20 | 379 | — | $0 | 970 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2024-12-31 | 2025-01-17 | 2 | $1336.81 | $2.8K | 591 | SEC↗ |
| MKL MARKEL GROUP INC. | F Tax w/h | 2024-12-05 | 2024-12-09 | 21 | $1759.04 | $36.9K | 588 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2024-09-30 | 2024-10-16 | 2 | $1333.29 | $2.4K | 609 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2024-06-28 | 2024-07-17 | 2 | $1282.46 | $2.8K | 608 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2024-03-28 | 2024-04-18 | 2 | $1220.99 | $2.4K | 605 | SEC↗ |
| MKL MARKEL GROUP INC. | A Award | 2024-02-20 | 2024-02-22 | 94 | — | $0 | 496 | SEC↗ |
| MKL MARKEL GROUP INC. | A Award | 2024-02-20 | 2024-02-27 | 108 | — | $0 | 604 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2023-12-29 | 2024-01-17 | 2 | $1206.92 | $2.8K | 402 | SEC↗ |
| MKL MARKEL GROUP INC. | F Tax w/h | 2023-12-05 | 2023-12-06 | 15 | $1401.29 | $21.0K | 399 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2023-09-29 | 2023-10-17 | 2 | $1164.51 | $2.4K | 414 | SEC↗ |
| MKL MARKEL GROUP INC. | J Other | 2023-06-30 | 2023-07-14 | 1 | $1101.99 | $1.5K | 412 | SEC↗ |
| MKL MARKEL CORP | A Award | 2023-05-16 | 2023-05-18 | 29 | — | $0 | 411 | SEC↗ |
| MKL MARKEL CORP | J Other | 2023-03-31 | 2023-04-28 | 1 | $1085.80 | $1.3K | 382 | SEC↗ |
| MKL MARKEL CORP | A Award | 2023-02-14 | 2023-02-15 | 54 | — | $0 | 381 | SEC↗ |
| MKL MARKEL CORP | A Award | 2022-02-15 | 2022-02-17 | 69 | — | $0 | 322 | SEC↗ |