6-Month Buy/Sell Trend
Buys
Sells
▶
2026-03-31
2 other
⚡ 2 insiders
▶
2026-02-24
6 other
⚡ 6 insiders
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| Costanzo Brian J. | Chief Financial Officer | A | 655 | $0 | $0 | Feb 26 | |
| Crowley Andrew G. | EVP & Pres., Markel Ventures | A | 830 | $0 | $0 | Feb 26 | |
| GAYNER THOMAS SINNICKSON | Chief Executive Officer | A | 4,484 | $0 | $0 | Feb 26 | |
| Grandis Meade P. | CAO and Controller | A | 70 | $0 | $0 | Feb 26 | |
| Grinnan Richard Randolph | SVP, Chief Legal Officer & Sec | A | 801 | $0 | $0 | Feb 26 | |
| Wilson Simon | EVP and CEO, Markel Insurance | A | 868 | $0 | $0 | Feb 26 |
▶
2026-02-26
▼ 1 sell
· $208K
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| Wilson Simon | EVP and CEO, Markel Insurance | ▼ Sell | 100 | $2K | $208K | Feb 26 |
▶
2026-02-17
1 other
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| Wilson Simon | CEO, Markel Insurance | F | 47 | $2K | $98K | Feb 19 |
▶
2025-12-31
1 other
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| Costanzo Brian J. | Chief Financial Officer | J | 2 | $2K | $4K | Jan 20 |
▶
2025-12-11
▼ 16 sells
· $2.8M
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| MARKEL STEVEN A | — | ▼ Sell | 64 | $2K | $134K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 50 | $2K | $105K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 70 | $2K | $148K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 40 | $2K | $84K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 120 | $2K | $254K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 100 | $2K | $212K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 201 | $2K | $426K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 24 | $2K | $51K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 51 | $2K | $108K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 173 | $2K | $367K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 10 | $2K | $21K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 32 | $2K | $68K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 75 | $2K | $159K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 190 | $2K | $404K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 10 | $2K | $21K | Plan | Dec 15 |
| MARKEL STEVEN A | — | ▼ Sell | 120 | $2K | $256K | Plan | Dec 15 |
▶
2025-12-02
6 other
⚡ 6 insiders
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| Costanzo Brian J. | Chief Financial Officer | F | 22 | $2K | $45K | Dec 3 | |
| Crowley Andrew G. | President, Markel Ventures | F | 65 | $2K | $133K | Dec 3 | |
| GAYNER THOMAS SINNICKSON | Chief Executive Officer | F | 37 | $2K | $75K | Dec 3 | |
| Grinnan Richard Randolph | SVP, Chief Legal Officer & Sec | F | 138 | $2K | $284K | Dec 3 | |
| Heaton Michael R | EVP & Chief Operating Officer | F | 217 | $2K | $448K | Dec 3 | |
| Wilson Simon | CEO, Markel Insurance | F | 94 | $2K | $194K | Dec 3 |
▶
2025-11-26
▼ 1 sell
· $147K
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| MARKEL STEVEN A | — | ▼ Sell | 70 | $2K | $147K | Plan | Dec 1 |
▶
2025-11-28
▼ 1 sell
· $210K
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| MARKEL STEVEN A | — | ▼ Sell | 100 | $2K | $210K | Plan | Dec 1 |
▶
2025-11-25
▼ 1 sell
· $155K
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| Wilson Simon | CEO, Markel Insurance | ▼ Sell | 75 | $2K | $155K | Nov 25 |
▶
2025-11-17
1 other
| Insider | Title | Type | Shares | Price | $ Value | 10b5-1 | Filed |
|---|---|---|---|---|---|---|---|
| MARKEL STEVEN A | — | G | 500 | $0 | $0 | Nov 18 |