Costanzo Brian J. (CIK 0001873434)

Latest company ownership

Shares held
1,178.2
Last filed at
Dec 3, 2025
Confidence Score
33.4
2025Q4
Confidence Score History
2023Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 2, 2025 Dec 3, 2025 MARKEL GROUP INC. CFO Sell 26.3 -21 -1.81% $44.8K
Sep 30, 2025 Oct 16, 2025 MARKEL GROUP INC. CFO Buy 55.0 +1 0.15% $3K
Jun 30, 2025 Jul 16, 2025 MARKEL GROUP INC. CFO Buy 55.0 +2 0.19% $3.5K
Mar 31, 2025 Apr 17, 2025 MARKEL GROUP INC. CFO Buy 55.0 +2 0.17% $3K
Dec 31, 2024 Jan 17, 2025 MARKEL GROUP INC. CFO Buy 60.0 +2 0.26% $2.8K
Dec 5, 2024 Dec 9, 2024 MARKEL GROUP INC. CFO Sell 26.3 -21 -2.54% $36.9K
Sep 30, 2024 Oct 16, 2024 MARKEL GROUP INC. CFO Buy 60.0 +1 0.22% $2.4K
Jun 28, 2024 Jul 17, 2024 MARKEL GROUP INC. CFO Buy 60.0 +2 0.27% $2.8K
Mar 28, 2024 Apr 18, 2024 MARKEL GROUP INC. CFO Buy 60.0 +1 0.24% $2.4K
Dec 29, 2023 Jan 17, 2024 MARKEL GROUP INC. CFO Buy 60.0 +2 0.38% $2.8K
Dec 5, 2023 Dec 6, 2023 MARKEL GROUP INC. SVP, Finance, CAO & Controller Sell 26.3 -15 -2.43% $21K
Sep 29, 2023 Oct 17, 2023 MARKEL GROUP INC. SVP, Finance, CAO & Controller Buy 60.0 +2 0.33% $2.4K
Jun 30, 2023 Jul 14, 2023 MARKEL GROUP INC. SVP, Finance, CAO & Controller Buy 60.0 +1 0.22% $1.5K
Mar 31, 2023 Apr 28, 2023 MARKEL GROUP INC. SVP, Finance, CAO & Controller Buy 60.0 +1 0.21% $1.3K