Costanzo Brian J.
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Costanzo Brian J.. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| MKL | Chief Financial Officer | Tax Withholding | 22 | $2,060.83 | $44,761 | Dec 2, 2025 |
| MKL | Chief Financial Officer | Other | 2 | $1,624.66 | $3,006 | Sep 30, 2025 |
| MKL | Chief Financial Officer | Other | 2 | $1,580.87 | $3,494 | Jun 30, 2025 |
| MKL | Chief Financial Officer | Other | 2 | $1,459.76 | $3,007 | Mar 31, 2025 |
| MKL | Chief Financial Officer | Award / Grant | 379 | — | — | Feb 18, 2025 |
| MKL | Chief Financial Officer | Other | 2 | $1,336.81 | $2,794 | Dec 31, 2024 |
| MKL | Chief Financial Officer | Tax Withholding | 21 | $1,759.04 | $36,940 | Dec 5, 2024 |
| MKL | Chief Financial Officer | Other | 2 | $1,333.29 | $2,400 | Sep 30, 2024 |
| MKL | Chief Financial Officer | Other | 2 | $1,282.46 | $2,796 | Jun 28, 2024 |
| MKL | Chief Financial Officer | Other | 2 | $1,220.99 | $2,405 | Mar 28, 2024 |
| MKL | Chief Financial Officer | Award / Grant | 94 | — | — | Feb 20, 2024 |
| MKL | Chief Financial Officer | Award / Grant | 108 | — | — | Feb 20, 2024 |
| MKL | Chief Financial Officer | Other | 2 | $1,206.92 | $2,800 | Dec 29, 2023 |
| MKL | SVP, Finance, CAO & Controller | Tax Withholding | 15 | $1,401.29 | $21,019 | Dec 5, 2023 |
| MKL | SVP, Finance, CAO & Controller | Other | 2 | $1,164.51 | $2,399 | Sep 29, 2023 |
| MKL | SVP, Finance, CAO & Controller | Other | 1 | $1,101.99 | $1,510 | Jun 30, 2023 |
| MKL | SVP, Finance, CAO & Controller | Award / Grant | 29 | — | — | May 16, 2023 |
| MKL | SVP, Finance, CAO & Controller | Other | 1 | $1,085.80 | $1,292 | Mar 31, 2023 |
| MKL | SVP, Finance, CAO & Controller | Award / Grant | 54 | — | — | Feb 14, 2023 |
| MKL | CAO and Controller | Award / Grant | 69 | — | — | Feb 15, 2022 |