GAYNER THOMAS SINNICKSON
SEC CIK 1159015 · EDGAR
BoughtSold
Companies
Most active insiders at MKL, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | MARKEL STEVEN A | Dir | — | $3.18M |
| 2 | Wilson Simon | EVP, CEO, Markel Insurance | — | $363.4K |
| 3 | Leopold Diane | Dir | $268.7K | — |
| 4 | Harris Greta J | Dir | — | $140.4K |
| 5 | Puckett A. Lynne | Dir | $102.3K | — |
| 6 | Grandis Meade P. | CAO, Ctrl | — | — |
| 7 | Crowley Andrew G. | Pres, Markel Ventures | — | — |
| 8 | Housel Morgan E. | Dir | — | — |
| 9 | Costanzo Brian J. | CFO | — | — |
| 10 | Besca Mark | Dir | — | — |
| 17 | GAYNER THOMAS SINNICKSON | CEO, Dir | — | — |
Transactions 45
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-19 16:33 | 2026-05-15 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | F - Tax | $1,844.00 | -481.67 | 56.3K | -0.8% | -$888.2K | |
| 2026-02-26 | 2026-02-24 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | A - Grant | $0.00 | +4,484 | 56.7K | +9% | $0 | |
| 2025-12-03 | 2025-12-02 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | F - Tax | $2,060.83 | -36.61 | 52.3K | -0.1% | -$75.4K | |
| 2025-02-20 | 2025-02-18 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | A - Grant | $0.00 | +3,350 | 52.3K | +7% | $0 | |
| 2025-02-07 | 2025-02-07 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | P - Purchase | $2,008.01 | +100 | 48.9K | +0.2% | +$200.8K | |
| 2024-12-09 | 2024-12-05 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | F - Tax | $1,759.04 | -45 | 48.8K | -0.1% | -$79.2K | |
| 2024-11-05 | 2024-11-01 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | P - Purchase | $1,549.72 | +100 | 48.9K | +0.2% | +$155.0K | |
| 2024-09-13 | 2024-09-12 | GHC | Graham Holdings Co | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $743.30 | +100 | 700 | +17% | +$74.3K | |
| 2024-02-27 | 2024-02-20 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | A - Grant | $0.00 | +1,041 | 48.8K | +2% | $0 | |
| 2024-02-22 | 2024-02-20 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | A - Grant | $0.00 | +2,710 | 47.7K | +6% | $0 | |
| 2024-02-05 | 2024-02-02 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | P - Purchase | $1,414.74 | +100 | 45.0K | +0.2% | +$141.5K | |
| 2023-12-06 | 2023-12-05 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | F - Tax | $1,401.29 | -46 | 44.9K | -0.1% | -$64.5K | |
| 2023-11-09 | 2023-11-09 | GHC | Graham Holdings Co | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $607.24 | +100 | 600 | +20% | +$60.7K | |
| 2023-11-06 | 2023-11-03 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | P - Purchase | $1,311.92 | +100 | 45.0K | +0.2% | +$131.2K | |
| 2023-09-12 | 2023-09-08 | GHC | Graham Holdings Co | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $569.83 | +100 | 500 | +25% | +$57.0K | |
| 2023-08-07 | 2023-08-04 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | P - Purchase | $1,479.47 | +100 | 44.9K | +0.2% | +$147.9K | |
| 2023-05-18 | 2023-05-16 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | A - Grant | $0.00 | +1,068 | 44.8K | +2% | $0 | |
| 2023-05-09 | 2023-05-09 | GHC | Graham Holdings Co | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $581.63 | +100 | 5,600 | +2% | +$58.2K | |
| 2023-05-03 | 2023-05-02 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | P - Purchase | $1,359.93 | +50 | 43.7K | +0.1% | +$68.0K | |
| 2023-03-13 | 2023-03-10 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | A - Grant | $0.00 | +1 | 2,421 | +0.0% | $0 | |
| 2023-03-07 | 2023-03-06 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $709.30 | +100 | 2,420 | +4% | +$70.9K | |
| 2023-02-15 | 2023-02-14 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | A - Grant | $0.00 | +1,558 | 43.7K | +4% | $0 | |
| 2023-02-06 | 2023-02-03 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | CEO, Dir | P - Purchase | $1,317.18 | +25 | 42.1K | +0.1% | +$32.9K | |
| 2022-12-19 | 2022-12-16 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | A - Grant | $0.00 | +1 | 2,320 | +0.0% | $0 | |
| 2022-12-07 | 2022-12-06 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | Co-CEO, Dir | F - Tax | $1,315.34 | -43 | 42.1K | -0.1% | -$56.6K | |
| I | 2022-11-15 | 2022-11-14 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $714.72 | +5,000 | 26.7K | +23% | +$3.57M |
| MI | 2022-11-10 | 2022-11-08+ | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $656.86 | +10.0K | 21.7K | +85% | +$6.57M |
| 2022-11-09 | 2022-11-08 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | Co-CEO, Dir | P - Purchase | $1,230.60 | +50 | 42.1K | +0.1% | +$61.5K | |
| 2022-09-16 | 2022-09-16 | GHC | Graham Holdings Co | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $556.15 | +100 | 5,500 | +2% | +$55.6K | |
| I | 2022-09-13 | 2022-09-12 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $1,094.74 | +500 | 11.7K | +4% | +$547.4K |
| I | 2022-09-07 | 2022-09-06 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $1,106.44 | +500 | 11.2K | +5% | +$553.2K |
| I | 2022-08-31 | 2022-08-29 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $1,177.75 | +500 | 10.7K | +5% | +$588.9K |
| 2022-08-25 | 2022-08-24 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $1,225.00 | +50 | 2,319 | +2% | +$61.2K | |
| 2022-08-05 | 2022-08-04 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | Co-CEO, Dir | P - Purchase | $1,202.46 | +50 | 42.1K | +0.1% | +$60.1K | |
| I | 2022-06-03 | 2022-06-01 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $1,291.17 | +5,000 | 10.2K | +96% | +$6.46M |
| 2022-05-27 | 2022-05-25 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $1,257.97 | +50 | 7,469 | +0.7% | +$62.9K | |
| 2022-05-24 | 2022-05-20 | CABO | Cable One, Inc. | GAYNER THOMAS SINNICKSON | Dir | A - Grant | $0.00 | +230 | 7,419 | +3% | $0 | |
| 2022-05-09 | 2022-05-09 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | Co-CEO, Dir | P - Purchase | $1,306.00 | +50 | 42.0K | +0.1% | +$65.3K | |
| 2022-02-17 | 2022-02-15 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | Co-CEO, Dir | A - Grant | $0.00 | +1,874 | 42.0K | +5% | $0 | |
| 2022-01-04 | 2021-12-31 | ENOV | Enovis CORP | GAYNER THOMAS SINNICKSON | Dir | A - Grant | $0.00 | +490 | 65.1K | +0.8% | $0 | |
| 2021-12-09 | 2021-12-07 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | Co-CEO, Dir | F - Tax | $1,249.50 | -32 | 40.1K | -0.1% | -$40.0K | |
| 2021-11-23 | 2021-11-22 | MKL | MARKEL GROUP INC. | GAYNER THOMAS SINNICKSON | Co-CEO, Dir | P - Purchase | $1,251.30 | +25 | 40.1K | +0.1% | +$31.3K | |
| 2021-11-15 | 2021-11-11 | GHC | Graham Holdings Co | GAYNER THOMAS SINNICKSON | Dir | P - Purchase | $595.17 | +100 | 5,400 | +2% | +$59.5K | |
| 2021-10-04 | 2021-09-30 | ENOV | Enovis CORP | GAYNER THOMAS SINNICKSON | Dir | A - Grant | $0.00 | +491 | 64.6K | +0.8% | $0 | |
| 2021-07-01 | 2021-06-30 | ENOV | Enovis CORP | GAYNER THOMAS SINNICKSON | Dir | A - Grant | $0.00 | +492 | 64.1K | +0.8% | $0 |
Purchase Sale Sale after option exercise All abbreviations