Who
Mark Besca
Director
Company insider
Files Form 4 as: Director, Markel Group; Director, Clarus; Director, Las Vegas Sands.
In numbers
- Trades disclosed
- 24
- Buys
- 1
- Sells
- 0
- Bought
- $66K
- Sold
- $0
- Companies
- 3
- Companies where not an officer
- 3
- First trade
- 18 Nov 2020
- Last trade
- 15 Jun 2026
- Last filed
- 17 Jun 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 15 Jun 2026filed 17 Jun 2026 | MKL Markel GroupInsurance | SEC FORM 4 Code J | $135K80.904 at $1,668.65 | filing |
| 15 Jun 2026filed 17 Jun 2026 | MKL Markel GroupInsurance | SEC FORM 4 Code J | $135K80.9 at $1,668.65 | filing |
| 28 May 2026filed 1 Jun 2026 | CLAR Clarusoption or derivative · Leisure Products & Vehicles | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 28 May 2026filed 1 Jun 2026 | CLAR Clarusoption or derivative · Leisure Products & Vehicles | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 20 May 2026filed 22 May 2026 | MKL Markel GroupInsurance | SEC FORM 4 Code A | —89 at $0.00 | filing |
| 20 May 2026filed 22 May 2026 | MKL Markel GroupInsurance | SEC FORM 4 Code A | —89 at $0.00 | filing |
| 14 May 2026filed 18 May 2026 | LVS Las Vegas SandsHotels, Casinos & Cruise | SEC FORM 4 Code A | —3,948 at $0.00 | filing |
| 14 May 2026filed 18 May 2026 | LVS Las Vegas SandsHotels, Casinos & Cruise | SEC FORM 4 Code A | —3,948 at $0.00 | filing |
| 29 May 2025filed 2 Jun 2025 | CLAR Clarusoption or derivative · Leisure Products & Vehicles | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 21 May 2025filed 23 May 2025 | MKL Markel GroupInsurance | SEC FORM 4 Code A | —88 at $0.00 | filing |
| 15 May 2025filed 19 May 2025 | LVS Las Vegas SandsHotels, Casinos & Cruise | SEC FORM 4 Code A | —4,746 at $0.00 | filing |
| 27 Jan 2025filed 28 Jan 2025 | LVS Las Vegas Sandsoption or derivative · Hotels, Casinos & Cruise | SEC FORM 4 Code A | —8,136 at $0.00 | filing |
| 5 Dec 2024filed 9 Dec 2024 | CLAR Clarusoption or derivative · Leisure Products & Vehicles | SEC FORM 4 Code A | —10,000 at $0.00 | filing |
| 14 Jun 2024filed 17 Jun 2024 | MKL Markel GroupInsurance | SEC FORM 4 Code J | $110K79.16 at $1,389.66 | filing |
| 22 May 2024filed 23 May 2024 | MKL Markel GroupInsurance | SEC FORM 4 Code A | —100 at $0.00 | filing |
| 3 Nov 2023filed 6 Nov 2023 | MKL Markel GroupInsurance | SEC FORM 4 Bought | $66K50 at $1,316.90 | filing |
| 15 Jun 2023filed 16 Jun 2023 | MKL Markel GroupInsurance | SEC FORM 4 Code J | $110K91.31 at $1,204.63 | filing |
| 17 May 2023filed 18 May 2023 | MKL Markel GroupInsurance | SEC FORM 4 Code A | —122 at $0.00 | filing |
| 13 May 2022filed 16 May 2022 | MKL Markel GroupInsurance | SEC FORM 4 Code J | $110K92.21 at $1,192.91 | filing |
| 11 May 2022filed 13 May 2022 | MKL Markel GroupInsurance | SEC FORM 4 Code A | —129 at $0.00 | filing |
News
Markel strengthens Marine & Energy Liability team in London with key appointmentsMKL · brantfordexpositor.ca · 15 Oct 2026Markel International launches new chemical, oil & gas related energy property offering for small to midsize US-domiciled businessesMKL · prnewswire.com · 8 Oct 2026
0 headlines in the last 90 days name Mark Besca; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.