Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2024-09-12 Purchase | 2024-09-13 4:15 pm | Graham Holdings Co | GHC | GAYNER THOMAS SINNICKSON Director | 100 | $743.3 | $74,330 | 5,900 (Indirect Direct) | View |
| 2024-02-02 Purchase | 2024-02-05 4:38 pm | MARKEL GROUP INC. | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 100 | $1,415 | $141,474 | 50,257 (Indirect Direct) | View |
| 2023-11-09 Purchase | 2023-11-09 4:20 pm | Graham Holdings Co | GHC | GAYNER THOMAS SINNICKSON Director | 100 | $607.24 | $60,724 | 5,800 (Indirect Direct) | View |
| 2023-11-03 Purchase | 2023-11-06 4:39 pm | MARKEL GROUP INC. | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 100 | $1,312 | $131,192 | 50,203 (Indirect Direct) | View |
| 2023-09-08 Purchase | 2023-09-12 6:14 pm | Graham Holdings Co | GHC | GAYNER THOMAS SINNICKSON Director | 100 | $569.83 | $56,983 | 5,700 (Indirect Direct) | View |
| 2023-08-04 Purchase | 2023-08-07 4:33 pm | MARKEL GROUP INC. | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 100 | $1,479 | $147,947 | 50,103 (Indirect Direct) | View |
| 2023-05-09 Purchase | 2023-05-09 4:24 pm | Graham Holdings Co | GHC | GAYNER THOMAS SINNICKSON Director | 100 | $581.63 | $58,163 | 5,600 (Direct) | View |
| 2023-05-02 Purchase | 2023-05-03 4:33 pm | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 50 | $1,360 | $67,997 | 48,930 (Indirect Direct) | View |
| 2023-03-06 Purchase | 2023-03-07 4:17 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 100 | $709.3 | $70,930 | 29,120 (Indirect Direct) | View |
| 2023-02-03 Purchase | 2023-02-06 4:45 pm | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 25 | $1,317 | $32,930 | 47,305 (Indirect Direct) | View |
| 2022-11-14 Purchase | 2022-11-15 4:56 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 5,000 | $714.72 | $3,573,599 | 29,019 (Indirect Direct) | View |
| 2022-11-08 Purchase | 2022-11-10 4:14 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 10,000 | $656.86 | $6,568,601 | 24,019 (Indirect Direct) | View |
| 2022-11-08 Purchase | 2022-11-09 4:37 pm | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer | 50 | $1,231 | $61,530 | 47,323 (Indirect Direct) | View |
| 2022-09-16 Purchase | 2022-09-16 4:20 pm | Graham Holdings Co | GHC | GAYNER THOMAS SINNICKSON Director | 100 | $556.15 | $55,615 | 5,500 (Direct) | View |
| 2022-09-12 Purchase | 2022-09-13 4:55 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 500 | $1,095 | $547,370 | 14,019 (Indirect Direct) | View |
| 2022-09-06 Purchase | 2022-09-07 5:36 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 500 | $1,106 | $553,220 | 13,519 (Indirect Direct) | View |
| 2022-08-29 Purchase | 2022-08-31 5:35 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 500 | $1,178 | $588,875 | 13,019 (Indirect Direct) | View |
| 2022-08-24 Purchase | 2022-08-25 7:56 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 50 | $1,225 | $61,250 | 12,519 (Indirect Direct) | View |
| 2022-08-04 Purchase | 2022-08-05 4:32 pm | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer | 50 | $1,202 | $60,123 | 47,273 (Indirect Direct) | View |
| 2022-06-01 Purchase | 2022-06-03 4:34 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 5,000 | $1,291 | $6,455,850 | 12,469 (Indirect Direct) | View |
| 2022-05-25 Purchase | 2022-05-27 4:33 pm | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 50 | $1,258 | $62,899 | 7,469 (Direct) | View |
| 2022-05-09 Purchase | 2022-05-09 5:03 pm | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer | 50 | $1,306 | $65,300 | 47,219 (Indirect Direct) | View |
| 2021-11-22 Purchase | 2021-11-23 4:42 pm | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer | 25 | $1,251 | $31,283 | 45,310 (Indirect Direct) | View |
| 2021-11-11 Purchase | 2021-11-15 11:39 am | Graham Holdings Co | GHC | GAYNER THOMAS SINNICKSON Director | 100 | $595.17 | $59,517 | 5,400 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2024-04-01 Option Award | 2024-04-03 12:56 pm | N/A N/A | COCA COLA CO | KO | GAYNER THOMAS SINNICKSON Director | 4,756 | $60.97 | 11,975 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-27 4:32 pm | N/A N/A | MARKEL GROUP INC. | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 1,041 | $0 | 54,008 (Direct) | View |
| 2024-02-20 Option Award | 2024-02-22 4:32 pm | N/A N/A | MARKEL GROUP INC. | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 2,710 | $0 | 52,967 (Direct) | View |
| 2023-12-05 Tax Withholding | 2023-12-06 4:31 pm | N/A N/A | MARKEL GROUP INC. | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 46 | $1,401 | 50,157 (Direct) | View |
| 2023-07-19 Option Award | 2023-07-21 3:47 pm | N/A N/A | COCA COLA CO | KO | GAYNER THOMAS SINNICKSON Director | 1,934 | $62.06 | 7,134 (Direct) | View |
Ownership | 2023-07-21 3:36 pm | N/A N/A | COCA COLA CO | KO | GAYNER THOMAS SINNICKSON Director | 0 | $0 | 5,200 (Direct) | View |
| 2023-05-16 Option Award | 2023-05-18 4:17 pm | N/A N/A | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 1,068 | $0 | 49,998 (Direct) | View |
| 2023-03-10 Option Award | 2023-03-13 8:49 pm | N/A N/A | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 1 | $0 | 31,541 (Direct) | View |
| 2023-02-14 Option Award | 2023-02-15 4:33 pm | N/A N/A | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Chief Executive Officer | 1,558 | $0 | 48,863 (Direct) | View |
| 2022-12-16 Option Award | 2022-12-19 6:43 pm | N/A N/A | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 1 | $0 | 31,339 (Direct) | View |
| 2022-12-06 Tax Withholding | 2022-12-07 4:40 pm | N/A N/A | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer | 43 | $1,315 | 47,280 (Direct) | View |
| 2022-05-20 Option Award | 2022-05-24 7:07 pm | N/A N/A | Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director | 230 | $0 | 7,419 (Direct) | View |
| 2022-02-15 Option Award | 2022-02-17 5:49 pm | N/A N/A | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer | 1,874 | $0 | 47,152 (Direct) | View |
| 2021-12-31 Option Award | 2022-01-04 6:30 pm | N/A N/A | Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director | 490 | $0 | 65,060 (Direct) | View |
| 2021-12-07 Tax Withholding | 2021-12-09 4:49 pm | N/A N/A | MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer | 32 | $1,250 | 45,278 (Direct) | View |
| 2021-09-30 Option Award | 2021-10-04 6:00 pm | N/A N/A | Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director | 491 | $0 | 64,570 (Direct) | View |