Insider Transactions
Showing insider trading activity for Costanzo Brian J..
Insider Trading Activity Chart
Visualizing insider transactions on stock price candles
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Recent Filings
| Symbol | Name | Filed | Transaction | Type | Role | Shares |
|---|---|---|---|---|---|---|
| MKL | Costanzo Brian J. | 16 Jul 2026 | 30 Jun 2026 | J-Other | Chief Financial Officer | 2.164 |
| MKL | Costanzo Brian J. | 19 May 2026 | 15 May 2026 | F-InKind | Chief Financial Officer | 13.08 |
| MKL | Costanzo Brian J. | 19 May 2026 | 15 May 2026 | J-Other | Chief Financial Officer | 30.128 |
| MKL | Costanzo Brian J. | 15 Apr 2026 | 31 Mar 2026 | J-Other | Chief Financial Officer | 1.844 |
| MKL | Costanzo Brian J. | 26 Feb 2026 | 24 Feb 2026 | A-Award | Chief Financial Officer | 654.641 |
| MKL | Costanzo Brian J. | 20 Jan 2026 | 31 Dec 2025 | J-Other | Chief Financial Officer | 2.184 |
| MKL | Costanzo Brian J. | 3 Dec 2025 | 2 Dec 2025 | F-InKind | Chief Financial Officer | 21.723 |
| MKL | Costanzo Brian J. | 16 Oct 2025 | 30 Sept 2025 | J-Other | Chief Financial Officer | 1.846 |
| MKL | Costanzo Brian J. | 16 Jul 2025 | 30 Jun 2025 | J-Other | Chief Financial Officer | 2.214 |